CN107820291A - Network section control method and relevant device - Google Patents

Abstract

The invention discloses a kind of network section control method and relevant device, wherein, this method includes：Terminal device access source network section.Source network, which is cut into slices, sends the information of network state to core network management device.Core network management device receives the information for the network state that source network section is sent.If network state meets the first preparatory condition, core network management device controls terminal device to switch to objective network section from source network.So as to mitigate the load pressure of source network section, the Internet resources of source network section are optimized.

Description

Network slicing control method and related equipment

technical field

The present invention relates to the field of communication technologies, in particular to a network slice control method and related equipment.

Background technique

With the rapid development of wireless communication technology, future wireless communication services will be ever-changing and in various forms. The fifth generation (English: 5th Generation, referred to as: 5G) wireless communication network will face different application scenarios, such as ultra-high-definition video, virtual reality, large-scale Internet of Things, Internet of Vehicles, etc., and different scenarios will affect the mobility of the network. , security, delay, reliability, and even billing methods are different. For example, services with high-speed mobility have high requirements for network performance indicators such as service continuity and handover delay, while machine Type communication services (English: Machine Type Communication, MTC for short) have high requirements on the number of service connections, but have no requirements on handover delay and mobility. In the future 5G communication system, in order to meet the different requirements of different services on network performance, the future network needs to have the ability to be customized on demand, that is, to be able to flexibly configure network slicing and cut the physical network into multiple virtual networks Slicing, each virtual network slice is oriented to different application scenario requirements.

It can be seen from the above that the future business forms will be different and varied. The development trend of 5G network is to establish different network slices for different types of services through virtualization technology. In 5G network, how to control the switching of terminal equipment to the target network slice is an urgent problem to be solved.

Contents of the invention

The embodiment of the present invention provides a network slicing control method and related equipment, which can control the switching of the terminal device to the target network slicing by the core network management device, reduce the load pressure of the source network slicing, and optimize the network resources of the source network slicing .

In a first aspect, an embodiment of the present invention provides a network slice control method. The method includes: a core network management device receiving network state information sent by a source network slice, where the source network slice is a network slice that a terminal device has accessed. If the network state of the source network slice satisfies the first preset condition, the core network management device controls the terminal device to switch from the source network slice to the target network slice. In this way, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

With reference to the first aspect, in a first implementation manner of the first aspect, a process in which a core network management device controls a terminal device to switch from a source network slice to a target network slice is described. The core network management device authorizes the terminal device to access the target network slice. The core network management device sends the first slice control request to the terminal device. The first slice control request includes an identification of the target network slice. The identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice. Therefore, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

In combination with the first implementation of the first aspect, in the second implementation of the first aspect, the first slice control request further includes configuration indication information corresponding to the target network slice, and the configuration indication information is used to instruct the terminal device according to Configure the instructions to configure the protocol to access the target network slice. Therefore, the terminal device can be correctly connected to the target network slice.

In combination with the first implementation of the first aspect, or the second implementation of the first aspect, in the third implementation of the first aspect, after the core network management device authorizes the terminal device to access the target network slice, The core network management device also sends a second slice control request including the identifier of the terminal device to the target network slice. The second slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. When the core network management device determines that the target network slice has established a bearer for the terminal device, the core network management device sends a third slice control request including the identifier of the terminal device to the source network slice. The third slice control request is used to instruct the source network slice to remove the bearer established for the terminal device corresponding to the identifier of the terminal device. The bearer is established for the terminal device through the target network slice, and the terminal device can be correctly connected to the target network slice. In order to ensure that the service of the terminal device will not be interrupted, the source network slice removes the bearer established for the terminal device after the target network slice establishes a bearer for the terminal device. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

In combination with the first implementation of the first aspect, or the second implementation of the first aspect, or the third implementation of the first aspect, in the fourth implementation of the first aspect, the core network management device Obtain the terminal device ID from the terminal device ID set that has accessed the source network slice, and obtain the subscription information corresponding to the terminal device ID from the home subscriber server or the policy and charging rule function device according to the terminal device ID . If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the contract information, the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

With reference to the first aspect, or any implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the first preset condition includes: the remaining value of network resources is less than or equal to the first preset threshold or load value greater than or equal to the second preset threshold.

In combination with the first implementation of the first aspect, or any implementation of the first aspect, in the sixth implementation of the first aspect, the target network slice is a default network slice or a network that satisfies the second preset condition slice. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the sixth implementation of the first aspect, in the seventh implementation of the first aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth threshold preset threshold.

With reference to the first implementation manner of the first aspect, or any implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the network state information sent by the source network slice includes an identifier of the terminal device. The core network management device obtains the identifier of the terminal device from the network state information, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the contract information, the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the first aspect, or the first implementation of the first aspect, or the second implementation of the first aspect, or the eighth implementation of the first aspect, in the ninth implementation of the first aspect, The network status information sent by the source network slice includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the target wireless access network information corresponding to the target network slice by the terminal device. The second measurement value obtained by measuring the downlink signal sent by the network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

In combination with the first aspect, or any implementation of the first aspect, in the tenth implementation of the first aspect, the core network management device receives the network status information sent by the source network slice, specifically: the core network management device The network status information sent by the radio access network device or the core network control plane device is received, and the radio access network device or the core network control plane device is a device in the source network slice.

With reference to the first aspect, or any implementation manner of the first aspect, in an eleventh implementation manner of the first aspect, initial access of a terminal device to a source network slice is described. The core network management device receives the slice access request sent by the terminal device. The slice access request includes the identifier of the source network slice. The core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice according to the slice access request. The core network management device sends configuration instruction information corresponding to the source network slice to the terminal device. The configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration to access the source network slice according to the configuration indication information corresponding to the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

With reference to the eleventh implementation of the first aspect, in the twelfth implementation of the first aspect, after the core network management device authorizes the terminal device to access the source network slice, it also sends the sixth slice to the source network slice The control request, the sixth slice control request includes the identifier of the terminal device. The sixth slice control request is used to instruct the source network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the eleventh implementation manner of the first aspect, or the twelfth implementation manner of the first aspect, in a thirteenth implementation manner of the first aspect, the slice access request further includes an identifier of the terminal device. The core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The core network management device determines that the terminal device can access the source network slice according to the contract information and the identifier of the source network slice, and then the core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the first aspect, in a fourteenth implementation manner of the first aspect, the core network management device includes an interconnected slice manager and a protocol configuration function. The target network slice is the default network slice. The slice manager receives network state information sent by the source network slice. If the network state of the source network slice satisfies the first preset condition, the slice manager authorizes the terminal device to access the network slice by default. The slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager. The protocol configuration information acquisition request includes the identifier of the default network slice. The protocol configuration information acquisition request is used to instruct to acquire the protocol configuration information corresponding to the default network slice. The protocol configuration device searches for the protocol configuration information corresponding to the default network slice according to the received protocol configuration information acquisition request, and sends the protocol configuration information to the slice manager. The slice manager receives the protocol configuration information sent by the protocol configuration device, and sends the protocol configuration information to the terminal device, and the terminal device receives the protocol configuration information sent by the slice manager, and performs protocol configuration according to the protocol configuration information to access the default network slice . By setting the slice manager and the protocol configuration device separately, the slice manager can perform access authorization, and the protocol configuration device can determine the protocol configuration information. Compared with the integrated setting of the slice manager and the protocol configuration device, the slice management The router and the protocol configuration device each implement different functions, which is more efficient.

With reference to the first aspect, or any implementation manner of the first aspect, in a fifteenth implementation manner of the first aspect, the network state information of the source network slice includes the network state of the radio access network device in the source network slice and/or the network state information of the core network user plane device in the source network slice, or, the network state information of the source network slice includes the network state information of the core network control plane device in the source network slice and/or Information about the network state of the core network user plane device in the source network slice.

In a second aspect, an embodiment of the present invention provides a network slice control method. The method includes: the wireless access network device sends the network state information of the source network slice to the core network management device. The source network slice is a network slice that has been accessed by the terminal device, and the radio access network device is a radio access network device of the source network slice. If the network status of the source network slice satisfies the first preset condition, the radio access network device receives the second slice control request including the identifier of the terminal device sent by the core network management device. The radio access network device removes the bearer established for the terminal device corresponding to the identifier of the terminal device according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the second aspect, in the first implementation manner of the second aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

With reference to the second aspect, or the first implementation manner of the second aspect, in the second implementation manner of the second aspect, the network status information sent by the radio access network device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the second aspect, or the first implementation of the second aspect, or the second implementation of the second aspect, in the third implementation of the second aspect, the target network slice is the default network slice or satisfies the second Network slicing with preset conditions. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the second aspect, in the fourth implementation of the second aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth threshold preset threshold.

With reference to the second aspect, or the second implementation of the second aspect, in the fifth implementation of the second aspect, the network status information sent by the radio access network device includes the source network slice corresponding to the terminal device to the source network slice. The first measurement value obtained by measuring the downlink signal sent by the radio access network device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access network The identity of the device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the second aspect, or any implementation manner of the second aspect, in a sixth implementation manner of the second aspect, the initial access of the terminal device to the source network slice is described. The source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the second aspect, or any implementation manner of the second aspect, in a seventh implementation manner of the second aspect, the network state information of the source network slice includes network state information of radio access network devices in the source network slice information and/or network status information of core network user plane devices in the source network slice.

In a third aspect, an embodiment of the present invention provides a method for controlling network slicing. The method includes: the core network user plane device sends the network state information of the source network slice to the core network management device. The source network slice is a network slice that has been accessed by a terminal device, and the core network user plane device is a core network user plane device of the source network slice. If the network state of the source network slice satisfies the first preset condition, the core network user plane device receives the second slice control request including the identifier of the terminal device sent by the core network management device. The user plane device of the core network removes the bearer established for the terminal device corresponding to the identifier of the terminal device according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the third aspect, in a first implementation manner of the third aspect, the first preset condition includes: a remaining value of network resources is less than or equal to a first preset threshold or a load value is greater than or equal to a second preset threshold.

With reference to the third aspect, or the first implementation manner of the third aspect, in the second implementation manner of the third aspect, the network status information sent by the core network user plane device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the third aspect, or the first implementation of the third aspect, or the second implementation of the third aspect, in the third implementation of the third aspect, the target network slice is the default network slice or satisfies the second Network slicing with preset conditions. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the third aspect, in the fourth implementation of the third aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth threshold preset threshold.

In combination with the third aspect, or the second implementation manner of the third aspect, in the fifth implementation manner of the third aspect, the network state information sent by the core network user plane device includes the source information corresponding to the source network slice by the terminal device. The first measurement value obtained by measuring the downlink signal sent by the core network user plane device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target core network user plane device corresponding to the target network slice, and the target core network user plane The identity of the device. The identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.

With reference to the third aspect, or any implementation manner of the third aspect, in a sixth implementation manner of the third aspect, the initial access of the terminal device to the source network slice is described. The source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the third aspect, or any implementation manner of the third aspect, in a seventh implementation manner of the third aspect, the network state information of the source network slice includes network state information of radio access network devices in the source network slice information and/or network status information of core network user plane devices in the source network slice.

In a fourth aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: the core network control plane device sends the network state information of the source network slice to the core network management device. The source network slice is the network slice to which the terminal device has been connected, and the core network control plane device is the core network control plane device of the source network slice. If the network status of the source network slice satisfies the first preset condition, the core network control plane device receives the second slice control request including the identifier of the terminal device sent by the core network management device. The core network control plane device removes the bearer established for the terminal device corresponding to the identifier of the terminal device according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the fourth aspect, in the first implementation manner of the fourth aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

With reference to the fourth aspect, or the first implementation manner of the fourth aspect, in the second implementation manner of the fourth aspect, the network status information sent by the core network control plane device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the fourth aspect, or the first implementation of the fourth aspect, or the second implementation of the fourth aspect, in the third implementation of the fourth aspect, the target network slice is the default network slice or satisfies the second Network slicing with preset conditions. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the fourth aspect, in the fourth implementation of the fourth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth threshold preset threshold.

In combination with the fourth aspect, or the second implementation manner of the fourth aspect, in the fifth implementation manner of the fourth aspect, the network state information sent by the core network control plane device includes the source information corresponding to the source network slice by the terminal device. The first measurement value obtained by measuring the downlink signal sent by the radio access network device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access network The identity of the device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the fourth aspect, or any implementation manner of the fourth aspect, in a sixth implementation manner of the fourth aspect, the initial access of the terminal device to the source network slice is described. The source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the fourth aspect, or any implementation manner of the fourth aspect, in the seventh implementation manner of the fourth aspect, the network state information of the source network slice includes information about the network state of the core network control plane device in the source network slice information and/or network status information of core network user plane devices in the source network slice.

In a fifth aspect, an embodiment of the present invention provides a method for controlling network slicing. The method includes: the terminal device receives the first slice control request sent by the core network management device, and the terminal device has access to the source network slice. The first slice control request is sent to the terminal device when the core network management device determines that the network state of the source network slice satisfies the first preset condition according to the network state information sent by the source network slice. The first slice control request includes The identity of the target network slice. The terminal device determines, according to the first slice control request, the target network slice corresponding to the identifier for switching from the source network slice to the target network slice. In this way, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

With reference to the fifth aspect, in the first implementation of the fifth aspect, the first slice control request further includes configuration instruction information corresponding to the target network slice; after the terminal device receives the first slice control request sent by the core network management device , the terminal device also performs protocol configuration according to the configuration instruction information to access the target network slice. The success rate of the terminal device accessing the target network slice is improved.

With reference to the fifth aspect, or the first implementation manner of the fifth aspect, in the second implementation manner of the fifth aspect, the first preset condition includes: the remaining value of network resources is less than or equal to the first preset threshold or load value greater than or equal to the second preset threshold.

In combination with the fifth aspect, or the first implementation of the fifth aspect, or the second implementation of the fifth aspect, in the third implementation of the fifth aspect, the target network slice is the default network slice or satisfies the second Network slicing with preset conditions. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the fifth aspect, in the fourth implementation of the fifth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth threshold preset threshold.

With reference to the fifth aspect, or the first implementation manner of the fifth aspect, in the fifth implementation manner of the fifth aspect, the network status information sent by the source network slice includes The first measurement value obtained by measuring the downlink signal sent by the network access device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access network device's logo. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the fifth aspect, or any implementation manner of the fifth aspect, in a sixth implementation manner of the fifth aspect, the initial access of the terminal device to the source network slice is described. The terminal device sends a slice access request including the identifier of the source network slice to the core network management device. The slice access request is used to instruct the core network management device to authorize the source network slice access corresponding to the identifier of the source network slice for the terminal device, and send configuration instruction information corresponding to the source network slice to the terminal device. The terminal device receives configuration instruction information corresponding to the source network slice sent by the core network management device. The terminal device performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

With reference to the sixth implementation manner of the fifth aspect, in a seventh implementation manner of the fifth aspect, the slice access request further includes an identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information and the identifier of the source network slice determine that the terminal device can access the source network slice, and the core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the fifth aspect, or any implementation manner of the fifth aspect, in an eighth implementation manner of the fifth aspect, the network state information of the source network slice includes information about the network state of the radio access network device in the source network slice The information and/or the network state information of the core network user plane device in the source network slice, or, the network state information of the source network slice includes the network state information of the core network control plane device in the source network slice and/or the source Information about the network state of the core network user plane device in the network slice.

In a sixth aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: a core network management device receiving network state information sent by a target network slice, where the target network slice is a network slice to which a terminal device fails to access, and the terminal device has already connected to a source network slice. If the network state of the target network slice satisfies the third preset condition, the core network management device controls the terminal device to access the target network slice. In this way, the requirement that the terminal device accesses two network slices at the same time is met.

With reference to the sixth aspect, in a first implementation manner of the sixth aspect, a process in which the core network management device controls the terminal device to access the target network slice is described. The core network management device authorizes the terminal device to access the target network slice. The core network management device sends a fourth slice control request to the terminal device, where the fourth slice control request includes configuration indication information corresponding to the target network slice. The configuration indication information corresponding to the target network slice is used to instruct the terminal device to perform protocol configuration to access the target network slice according to the configuration indication information, so that the terminal device can correctly access the target network slice.

In combination with the first implementation of the sixth aspect, in the second implementation of the sixth aspect, after the core network management device authorizes the terminal device to access the target network slice, the core network management device also sends a message to the target network slice including A fifth slice control request for the identification of the terminal device. The fifth slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device, so that the terminal device can correctly access the target network slice.

In combination with the first implementation of the sixth aspect, or the second implementation of the sixth aspect, in the third implementation of the sixth aspect, the core network management device obtains the terminal from the pre-recorded terminal device identification set The identifier of the device, and according to the identifier of the terminal device, obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device. If the core network management device determines according to the contract information that the terminal device allows the core network management device to perform network slice access control on the terminal device, the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

With reference to the sixth aspect, or any implementation manner of the sixth aspect, in the fourth implementation manner of the sixth aspect, the third preset condition includes: the remaining value of network resources is greater than or equal to the fifth preset threshold or load value Less than or equal to the sixth preset threshold.

In combination with the sixth aspect, or any implementation manner of the sixth aspect, in the fifth implementation manner of the sixth aspect, the core network management device receives the network status information sent by the target network slice, specifically: the core network management device Receive network status information sent by radio access network equipment, core network user plane equipment, or core network control plane equipment, where the radio access network equipment, core network user plane equipment, or core network control plane equipment is a device in the target network slice.

With reference to the sixth aspect, or any implementation manner of the sixth aspect, in a sixth implementation manner of the sixth aspect, the initial access of the terminal device to the source network slice is described. The core network management device receives the slice access request sent by the terminal device. The slice access request includes the identifier of the source network slice. The core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice according to the slice access request. The core network management device sends configuration instruction information corresponding to the source network slice to the terminal device. The configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration to access the source network slice according to the configuration indication information corresponding to the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

In combination with the sixth implementation of the sixth aspect, in the seventh implementation of the sixth aspect, after the core network management device authorizes the terminal device to access the source network slice according to the slice access request, it also sends the source network slice A sixth slice control request including an identification of the terminal device. The sixth slice control request is used to instruct the source network slice to establish a bearer for the terminal device. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the sixth implementation manner of the sixth aspect, or the seventh implementation manner of the sixth aspect, in an eighth implementation manner of the sixth aspect, the slice access request further includes an identifier of the terminal device. The core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The core network management device determines that the terminal device can access the source network slice according to the contract information and the identifier of the source network slice, and then the core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the sixth aspect, in a ninth implementation manner of the sixth aspect, the core network management device includes a slice manager and a protocol configuration device that are connected to each other. The slice manager receives network state information sent by the target network slice. If the network state of the target network slice satisfies the third preset condition, the slice manager authorizes the terminal device to access the target network slice. The slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager. The protocol configuration information acquisition request includes the identifier of the target network slice. The protocol configuration information acquisition request is used to instruct to acquire the protocol configuration information corresponding to the target network slice. The protocol configuration device searches for the protocol configuration information corresponding to the target network slice according to the received protocol configuration information acquisition request, and sends the protocol configuration information to the slice manager. The slice manager receives the protocol configuration information sent by the protocol configuration device, and sends the protocol configuration information to the terminal device, and the terminal device receives the protocol configuration information sent by the slice manager, and performs protocol configuration according to the protocol configuration information to access the target network slice . By setting the slice manager and the protocol configuration device separately, the slice manager can perform access authorization, and the protocol configuration device can determine the protocol configuration information. Compared with the integrated setting of the slice manager and the protocol configuration device, the slice management The router and the protocol configuration device each implement different functions, which is more efficient.

With reference to the sixth aspect, or any implementation manner of the sixth aspect, in a tenth implementation manner of the sixth aspect, the information about the network state of the target network slice includes information about the network state of the radio access network device in the target network slice The information and/or the network state information of the core network user plane device in the target network slice, or the network state information of the target network slice includes the network state information of the core network control plane device in the target network slice and/or the target Information about the network state of the core network user plane device in the network slice.

In a seventh aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: the wireless access network device sends the network status information of the target network slice to the core network management device, the target network slice is a network slice for which the terminal device fails to access, the terminal device has connected to the source network slice, and the wireless access network slice The network access device is a wireless access network device of the target network slice. If the network state of the target network slice satisfies the third preset condition, the radio access network device receives a fifth slice control request sent by the core network management device, where the fifth slice control request includes the identifier of the terminal device. The radio access network device establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal devices that have accessed the source network slice can simultaneously access the target network slice.

With reference to the seventh aspect, in the first implementation manner of the seventh aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the seventh aspect, or the first implementation manner of the seventh aspect, in the second implementation manner of the seventh aspect, the network state information of the target network slice includes the network state of the radio access network device in the target network slice and/or information about the network state of the core network user plane device in the target network slice.

In an eighth aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: a core network user plane device sends network status information of a target network slice to a core network management device, the target network slice is a network slice for which a terminal device fails to access, the terminal device has connected to a source network slice, and the core network The user plane device is a core network user plane device of the target network slice. If the network state of the target network slice satisfies the third preset condition, the core network user plane device receives a fifth slice control request sent by the core network management device, where the fifth slice control request includes an identifier of the terminal device. The user plane device of the core network establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal device connected to the source network slice can be connected to the target network slice at the same time.

With reference to the eighth aspect, in the first implementation manner of the eighth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the eighth aspect, or the first implementation manner of the eighth aspect, in the second implementation manner of the eighth aspect, the network state information of the target network slice includes the network state of the radio access network device in the target network slice and/or information about the network state of the core network user plane device in the target network slice.

In a ninth aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: the core network control plane device sends the network state information of the target network slice to the core network management device, the target network slice is a network slice that the terminal device fails to access, the terminal device has connected to the source network slice, and the core network The control plane device is a core network control plane device of the target network slice. If the network status of the target network slice satisfies the third preset condition, the core network control plane device receives a fifth slice control request sent by the core network management device, where the fifth slice control request includes an identifier of the terminal device. The core network control plane device establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal device connected to the source network slice can simultaneously access the target network slice.

With reference to the ninth aspect, in the first implementation manner of the ninth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

In combination with the ninth aspect, or the first implementation manner of the ninth aspect, in the second implementation manner of the ninth aspect, the network state information of the target network slice includes the network state of the core network control plane device in the target network slice and/or information about the network state of the core network user plane device in the target network slice.

In a tenth aspect, embodiments of the present invention provide a method for controlling network slicing. The method includes: the terminal device receives the fourth slice control request sent by the core network management device, and the terminal device has access to the source network slice. The fourth slice control request includes configuration indication information corresponding to the target network slice. The fourth slice control request is sent to the terminal device when the core network management device determines that the network state of the target network slice satisfies the third preset condition according to the network state information sent by the target network slice. The terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice. In this way, the requirement that the terminal device accesses two network slices at the same time is met.

With reference to the tenth aspect, in the first implementation manner of the tenth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the tenth aspect, or the first implementation manner of the tenth aspect, in the second implementation manner of the tenth aspect, the network state information of the target network slice includes the network state of the radio access network device in the target network slice and/or information about the network state of the core network user plane device in the target network slice, or, the information about the network state of the target network slice includes information about the network state of the core network control plane device in the target network slice and/or Information about the network state of the core network user plane device in the target network slice.

In an eleventh aspect, an embodiment of the present invention provides a core network management device, including a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: through the transceiver Receive the network status information sent by the source network slice, where the source network slice is the network slice that the terminal device has connected to. If the network state of the source network slice satisfies the first preset condition, the processor controls the terminal device to switch from the source network slice to the target network slice. In this way, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

With reference to the eleventh aspect, in a first implementation manner of the eleventh aspect, the processor controls the terminal device to switch from the source network slice to the target network slice, including: the processor authorizes the terminal device to access the target network slice. The processor sends the first slice control request to the terminal device through the transceiver. The first slice control request includes an identification of the target network slice. The identifier of the target network slice is used to instruct the terminal device to determine the target network slice corresponding to the identifier of the target network slice from the source network slice according to the identifier of the target network slice. Therefore, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

With reference to the first implementation of the eleventh aspect, in the second implementation of the eleventh aspect, the first slice control request further includes configuration indication information corresponding to the target network slice, and the configuration indication information is used to instruct the terminal device Perform protocol configuration according to the configuration instructions to access the target network slice. Therefore, the terminal device can be correctly connected to the target network slice.

In combination with the first implementation of the eleventh aspect, or the second implementation of the eleventh aspect, in the third implementation of the eleventh aspect, after the processor authorizes the terminal device to access the target network slice , the processor is further configured to: send a second slice control request including the identifier of the terminal device to the target network slice through the transceiver. The second slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. When the processor determines that the target network slice has established a bearer for the terminal device, a third slice control request including the identifier of the terminal device is sent to the source network slice through the transceiver. The third slice control request is used to instruct the source network slice to remove the bearer established for the terminal device corresponding to the identifier of the terminal device. The bearer is established for the terminal device through the target network slice, and the terminal device can be correctly connected to the target network slice. In order to ensure that the service of the terminal device will not be interrupted, the source network slice removes the bearer established for the terminal device after the target network slice establishes a bearer for the terminal device. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

In combination with the first implementation of the eleventh aspect, or the second implementation of the eleventh aspect, or the third implementation of the eleventh aspect, in the fourth implementation of the eleventh aspect, processing The processor authorizes the terminal device to access the target network slice, including: the processor obtains the terminal device ID from the terminal device ID set that has accessed the source network slice, and according to the terminal device ID, obtains the terminal device ID from the home subscriber server or the policy The subscription information corresponding to the identifier of the terminal device is acquired in the charging rule function device. If the processor determines according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the first implementation of the eleventh aspect, or any implementation of the eleventh aspect, in the fifth implementation of the eleventh aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

With reference to the eleventh aspect, or any implementation manner of the eleventh aspect, in a sixth implementation manner of the eleventh aspect, the target network slice is a default network slice or a network slice satisfying the second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the sixth implementation manner of the eleventh aspect, in the seventh implementation manner of the eleventh aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to Fourth preset threshold.

In combination with the first implementation of the eleventh aspect, or any implementation of the eleventh aspect, in the eighth implementation of the eleventh aspect, the network status information sent by the source network slice includes the terminal device ID of the terminal device; the processor authorizes the terminal device to access the target network slice, including: the processor obtains the ID of the terminal device from the information of the network state, and according to the ID of the terminal device, obtains the ID from the home subscriber server or the policy and charging The subscription information corresponding to the identifier of the terminal device is acquired in the rule function device. If the processor determines according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the eleventh aspect, or the first implementation of the eleventh aspect, or the second implementation of the eleventh aspect, or the eighth implementation of the eleventh aspect, in the ninth aspect of the eleventh aspect In one implementation manner, the network status information sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

In combination with the eleventh aspect, or any implementation manner of the eleventh aspect, in the tenth implementation manner of the eleventh aspect, the processor receives the network status information sent by the source network slice through the transceiver, specifically: The processor receives the network status information sent by the radio access network device or the core network user plane device or the core network control plane device through the transceiver, and the radio access network device or the core network user plane device or the core network control plane device is the source network Devices in the slice.

In combination with the eleventh aspect, or any implementation manner of the eleventh aspect, in the eleventh implementation manner of the eleventh aspect, before the processor receives the network status information sent by the source network slice through the transceiver, it processes The transceiver is also used for: receiving the slice access request sent by the terminal device through the transceiver. The slice access request includes the identifier of the source network slice. The processor authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice according to the slice access request. The processor sends configuration indication information corresponding to the source network slice to the terminal device; the configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

In combination with the eleventh implementation of the eleventh aspect, in the twelfth implementation of the eleventh aspect, after the processor authorizes the source network slicing access to the terminal device, the processor is further configured to: send and receive The router sends a sixth slice control request to the source network slice. The sixth slice control request includes the identifier of the terminal device, and the sixth slice control request is used to instruct the source network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. Therefore, it is ensured that the terminal device can be connected to the source network slice.

In combination with the eleventh implementation of the eleventh aspect, or the twelfth implementation of the eleventh aspect, in the thirteenth implementation of the eleventh aspect, the slice access request further includes the terminal device's logo. According to the slice access request, the processor performs source network slice access authorization corresponding to the identifier of the source network slice for the terminal device, including: the processor obtains the identifier of the terminal device from the slice access request, and according to the identifier of the terminal device, from the belonging The subscription information corresponding to the identifier of the terminal device is acquired in the subscriber server or in the policy and charging rule function device. If the processor determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, the processor authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the eleventh aspect, or any implementation manner of the eleventh aspect, in the fourteenth implementation manner of the eleventh aspect, the network state information of the source network slice includes the radio access network device in the source network slice The network state information of the source network slice and/or the network state information of the core network user plane device in the source network slice, or the network state information of the source network slice includes the network state information of the core network control plane device in the source network slice and/or information about the network state of the core network user plane device in the source network slice.

In a twelfth aspect, an embodiment of the present invention provides a radio access network device, where the radio access network device is a radio access network device in a source network slice that a terminal device has accessed. The radio access network device includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the program and data stored in the memory to perform the following operations: send the source network slice to the core network management device through the transceiver Information about the state of the network. If the network status of the source network slice satisfies the first preset condition, the second slice control request including the identifier of the terminal device sent by the core network management device is received through the transceiver. The bearer established for the terminal device corresponding to the identifier of the terminal device is removed according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the twelfth aspect, in the first implementation manner of the twelfth aspect, the first preset condition includes: a remaining value of network resources is less than or equal to a first preset threshold or a load value is greater than or equal to a second preset threshold.

With reference to the twelfth aspect, or the first implementation manner of the twelfth aspect, in the second implementation manner of the twelfth aspect, the network status information sent by the wireless access network device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the twelfth aspect, or the first implementation of the twelfth aspect, or the second implementation of the twelfth aspect, in the third implementation of the twelfth aspect, the target network slice is the default network slice Or a network slice that satisfies the second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the twelfth aspect, in the fourth implementation of the twelfth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to Fourth preset threshold.

With reference to the twelfth aspect, or the second implementation manner of the twelfth aspect, in the fifth implementation manner of the twelfth aspect, the network state information sent by the wireless access network device includes the terminal device slicing the source network The first measurement value obtained by measuring the downlink signal sent by the corresponding source wireless access network device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target wireless access network device corresponding to the target network slice, and the target wireless network slice. The identification of the access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the twelfth aspect, or any implementation manner of the twelfth aspect, in a sixth implementation manner of the twelfth aspect, the terminal device initially accesses the source network slice is described. The processor receives the sixth slice control request sent by the core network management device through the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the twelfth aspect, or any implementation manner of the twelfth aspect, in the seventh implementation manner of the twelfth aspect, the network status information of the source network slice includes the information of the radio access network device in the source network slice Information about the network state and/or information about the network state of the core network user plane device in the source network slice.

In a thirteenth aspect, an embodiment of the present invention provides a core network user plane device, where the core network user plane device is a core network user plane device in a source network slice that a terminal device has accessed. The core network user plane device includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: send the network status of the source network slice to the core network management device through the transceiver Information. If the network status of the source network slice satisfies the first preset condition, the second slice control request including the identifier of the terminal device sent by the core network management device is received through the transceiver. The bearer established for the terminal device corresponding to the identifier of the terminal device is removed according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the thirteenth aspect, in the first implementation manner of the thirteenth aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

With reference to the thirteenth aspect, or the first implementation manner of the thirteenth aspect, in the second implementation manner of the thirteenth aspect, the network state information sent by the core network user plane device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the thirteenth aspect, or the first implementation of the thirteenth aspect, or the second implementation of the thirteenth aspect, in the third implementation of the thirteenth aspect, the target network slice is the default network slice Or a network slice that satisfies the second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the thirteenth aspect, in the fourth implementation of the thirteenth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to Fourth preset threshold.

In combination with the thirteenth aspect, or the second implementation of the thirteenth aspect, in the fifth implementation of the thirteenth aspect, the network state information sent by the core network user plane device includes the source network slice by the terminal device The first measurement value obtained by measuring the downlink signal sent by the corresponding source core network user plane device, the second measurement value obtained by the terminal device measuring the downlink signal sent by the target core network user plane device corresponding to the target network slice, and the target core The identifier of the network user plane device. The identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.

With reference to the thirteenth aspect, or any implementation manner of the thirteenth aspect, in a sixth implementation manner of the thirteenth aspect, the initial access source network slice of the terminal device is described. The processor receives the sixth slice control request sent by the core network management device through the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the thirteenth aspect, or any implementation manner of the thirteenth aspect, in the seventh implementation manner of the thirteenth aspect, the network state information of the source network slice includes the information of the wireless access network device in the source network slice Information about the network state and/or information about the network state of the core network user plane device in the source network slice.

In a fourteenth aspect, an embodiment of the present invention provides a core network control plane device, where the core network control plane device is a core network control plane device in a source network slice that a terminal device has accessed. The core network control plane device includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: send the network status of the source network slice to the core network management device through the transceiver Information. If the network status of the source network slice satisfies the first preset condition, the second slice control request including the identifier of the terminal device sent by the core network management device is received through the transceiver. The bearer established for the terminal device corresponding to the identifier of the terminal device is removed according to the second slice control request. Afterwards, the source network slice no longer provides business services for the terminal device, which reduces the load pressure on the source network slice.

With reference to the fourteenth aspect, in the first implementation manner of the fourteenth aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

With reference to the fourteenth aspect, or the first implementation manner of the fourteenth aspect, in the second implementation manner of the fourteenth aspect, the network status information sent by the core network control plane device includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device, and then the core network management device authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the fourteenth aspect, or the first implementation of the fourteenth aspect, or the second implementation of the fourteenth aspect, in the third implementation of the fourteenth aspect, the target network slice is the default network slice Or a network slice that satisfies the second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation of the fourteenth aspect, in the fourth implementation of the fourteenth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to Fourth preset threshold.

In combination with the fourteenth aspect, or the second implementation of the fourteenth aspect, in the fifth implementation of the fourteenth aspect, the network status information sent by the core network control plane device includes the source network slice by the terminal device The first measurement value obtained by measuring the downlink signal sent by the corresponding source wireless access network device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target wireless access network device corresponding to the target network slice, and the target wireless network slice. The identification of the access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the fourteenth aspect, or any implementation manner of the fourteenth aspect, in a sixth implementation manner of the fourteenth aspect, the terminal device initially accesses the source network slice is described. The processor receives the sixth slice control request sent by the core network management device through the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device. The sixth slice access request includes the identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the fourteenth aspect, or any implementation manner of the fourteenth aspect, in the seventh implementation manner of the fourteenth aspect, the network status information of the source network slice includes the information of the core network control plane device in the source network slice Information about the network state and/or information about the network state of the core network user plane device in the source network slice.

In a fifteenth aspect, an embodiment of the present invention provides a terminal device, including a processor, a memory, and a transceiver. Wherein, the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: receiving the first slice control request sent by the core network management device through the transceiver, and the terminal device has connected to the source network slice. The first slice control request is sent to the terminal device when the core network management device determines that the network state of the source network slice satisfies the first preset condition according to the network state information sent by the source network slice. The first slice control request includes The identity of the target network slice. The processor determines the target network slice corresponding to the identifier for switching from the source network slice to the target network slice according to the first slice control request. In this way, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.

With reference to the fifteenth aspect, in the first implementation manner of the fifteenth aspect, the first slice control request further includes configuration indication information corresponding to the target network slice; the processor receives the first slice sent by the core network management device through the transceiver. After the slice control request, the processor is further configured to: perform protocol configuration according to the configuration indication information to access the target network slice. The success rate of the terminal device accessing the target network slice is improved.

With reference to the fifteenth aspect, or the first implementation manner of the fifteenth aspect, in the second implementation manner of the fifteenth aspect, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold Or the load value is greater than or equal to the second preset threshold.

In combination with the fifteenth aspect, or the first implementation of the fifteenth aspect, or the second implementation of the fifteenth aspect, in the third implementation of the fifteenth aspect, the target network slice is a default network slice Or a network slice that satisfies the second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

With reference to the third implementation manner of the fifteenth aspect, in the fourth implementation manner of the fifteenth aspect, the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to Fourth preset threshold.

With reference to the fifteenth aspect, or the first implementation manner of the fifteenth aspect, in the fifth implementation manner of the fifteenth aspect, the network status information sent by the source network slice includes The first measurement value obtained by measuring the downlink signal sent by the source wireless access network device, the second measurement value obtained by the terminal device by measuring the downlink signal sent by the target wireless access network device corresponding to the target network slice, and the target wireless access network slice. ID of the network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

With reference to the fifteenth aspect, or any implementation manner of the fifteenth aspect, in the sixth implementation manner of the fifteenth aspect, before the processor receives the first slice control request sent by the core network management device through the transceiver, The processor is further configured to: send a slice access request including the identifier of the source network slice to the core network management device through the transceiver. The slice access request is used to instruct the core network management device to authorize the source network slice access corresponding to the identifier of the source network slice for the terminal device, and send configuration instruction information corresponding to the source network slice to the terminal device. The processor receives, through the transceiver, the configuration instruction information corresponding to the source network slice sent by the core network management device. The processor performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

With reference to the sixth implementation manner of the fifteenth aspect, in the seventh implementation manner of the fifteenth aspect, the slice access request further includes an identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The information and the identifier of the source network slice determine that the terminal device can access the source network slice, and the core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the fifteenth aspect, or any implementation manner of the fifteenth aspect, in an eighth implementation manner of the fifteenth aspect, the network status information of the source network slice includes the information of the radio access network device in the source network slice The network state information and/or the network state information of the core network user plane device in the source network slice, or, the network state information of the source network slice includes the network state information of the core network control plane device in the source network slice and /or information about the network state of the core network user plane device in the source network slice.

In a sixteenth aspect, an embodiment of the present invention provides a core network management device, including a processor, a memory, and a transceiver. Among them, the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: receive the network status information sent by the target network slice through the transceiver, the target network slice is a network slice that the terminal device fails to access, and the terminal device has Access source network slices. If the network state of the target network slice satisfies the third preset condition, the processor controls the terminal device to access the target network slice. In this way, the requirement that the terminal device accesses two network slices at the same time is met.

With reference to the sixteenth aspect, in a first implementation manner of the sixteenth aspect, the processor controlling the terminal device to access the target network slice includes: the processor authorizes the terminal device to access the target network slice. The processor sends a fourth slice control request to the terminal device through the transceiver, where the fourth slice control request includes configuration indication information corresponding to the target network slice. The configuration indication information corresponding to the target network slice is used to instruct the terminal device to perform protocol configuration to access the target network slice according to the configuration indication information, so that the terminal device can correctly access the target network slice.

With reference to the first implementation of the sixteenth aspect, in the second implementation of the sixteenth aspect, after the processor authorizes the terminal device to access the target network slice, the processor is further configured to: The network slice sends a fifth slice control request including the identification of the terminal device. The fifth slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device, so that the terminal device can correctly access the target network slice.

In combination with the first implementation of the sixteenth aspect, or the second implementation of the sixteenth aspect, in the third implementation of the sixteenth aspect, the processor performs target network slice access authorization for the terminal device The method includes: the processor obtains the terminal device identifier from the pre-recorded terminal device identifier set, and obtains the terminal device identifier corresponding to the terminal device identifier from the home subscriber server or the policy and charging rule function device according to the terminal device identifier. Contract information. If the processor determines according to the subscription information that the terminal device allows the core network management device to perform network slice access control on the terminal device, the processor authorizes the terminal device to access the target network slice. Judging whether to authorize access to the terminal device based on the subscription information of the terminal device can improve the accuracy of slice switching control performed by the core network management device on the terminal device.

In combination with the sixteenth aspect, or any implementation manner of the sixteenth aspect, in the fourth implementation manner of the sixteenth aspect, the third preset condition includes: the remaining value of network resources of the target network slice is greater than or equal to the first The fifth preset threshold or the load value of the target network slice is less than or equal to the sixth preset threshold.

In combination with the sixteenth aspect, or any implementation manner of the sixteenth aspect, in the fifth implementation manner of the sixteenth aspect, the processor receives the network status information sent by the target network slice through the transceiver, specifically: The processor receives the network status information sent by the radio access network device or the core network user plane device or the core network control plane device through the transceiver, and the radio access network device or the core network user plane device or the core network control plane device is the target network Devices in the slice.

With reference to the sixteenth aspect, or any implementation manner of the sixteenth aspect, in the sixth implementation manner of the sixteenth aspect, before the processor receives the network status information sent by the target network slice through the transceiver, the processor It is also used for: receiving the slice access request sent by the terminal device through the transceiver. The slice access request includes the identifier of the source network slice. The processor authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice according to the slice access request. The processor sends configuration instruction information corresponding to the source network slice to the terminal device through the transceiver. The configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration to access the source network slice according to the configuration indication information corresponding to the source network slice. Therefore, the success rate of the terminal device when initially accessing the source network slice is improved.

With reference to the sixth implementation of the sixteenth aspect, in the seventh implementation of the sixteenth aspect, after the processor grants the source network slice access authorization corresponding to the source network slice identifier to the terminal device according to the slice access request , the processor is further configured to: send a sixth slice control request including the identifier of the terminal device to the source network slice through the transceiver. The sixth slice control request is used to instruct the source network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. Therefore, it is ensured that the terminal device can be connected to the source network slice.

With reference to the sixth implementation manner of the sixteenth aspect, or the seventh implementation manner of the sixteenth aspect, in an eighth implementation manner of the sixteenth aspect, the slice access request further includes an identifier of the terminal device. According to the slice access request, the processor performs source network slice access authorization corresponding to the identifier of the source network slice for the terminal device, including: the processor obtains the identifier of the terminal device from the slice access request, and according to the identifier of the terminal device, from the belonging The subscription information corresponding to the identifier of the terminal device is acquired in the subscriber server or in the policy and charging rule function device. If the processor determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, the processor authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. The access authorization further improves the success rate when the terminal device accesses the source network slice.

With reference to the sixteenth aspect, or any implementation manner of the sixteenth aspect, in the ninth implementation manner of the sixteenth aspect, the network state information of the target network slice includes the information of the radio access network device in the target network slice The network state information and/or the network state information of the core network user plane device in the target network slice, or, the network state information of the target network slice includes the network state information of the core network control plane device in the target network slice and /or information about the network state of the core network user plane device in the target network slice.

In the seventeenth aspect, the embodiment of the present invention provides a wireless access network device, the wireless access network device is a wireless access network device in the target network slice where the terminal device fails to access, and the terminal device has already connected to the source network slice. The target network slice includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: send network status information of the target network slice to the core network management device through the transceiver. If the network status of the target network slice satisfies the third preset condition, the processor receives a fifth slice control request sent by the core network management device through the transceiver, and the fifth slice control request includes an identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal devices that have accessed the source network slice can simultaneously access the target network slice.

With reference to the seventeenth aspect, in the first implementation manner of the seventeenth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the seventeenth aspect, or the first implementation manner of the seventeenth aspect, in the second implementation manner of the seventeenth aspect, the network status information of the target network slice includes the radio access network device in the target network slice The network state information of the target network slice and/or the network state information of the core network user plane device in the target network slice.

In an eighteenth aspect, an embodiment of the present invention provides a core network user plane device. The core network user plane device is a core network user plane device in a target network slice where a terminal device fails to access, and the terminal device has already connected to the source network. slice. The target network slice includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: send network status information of the target network slice to the core network management device through the transceiver. If the network status of the target network slice satisfies the third preset condition, the processor receives a fifth slice control request sent by the core network management device through the transceiver, and the fifth slice control request includes an identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal devices that have accessed the source network slice can simultaneously access the target network slice.

With reference to the eighteenth aspect, in the first implementation manner of the eighteenth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the eighteenth aspect, or the first implementation manner of the eighteenth aspect, in the second implementation manner of the eighteenth aspect, the network state information of the target network slice includes the radio access network device in the target network slice The network state information of the target network slice and/or the network state information of the core network user plane device in the target network slice.

In a nineteenth aspect, an embodiment of the present invention provides a core network control plane device, the core network control plane device is a core network control plane device in a target network slice where a terminal device fails to access, and the terminal device has already connected to the source network slice. The target network slice includes a processor, a memory, and a transceiver, wherein the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: send network status information of the target network slice to the core network management device through the transceiver. If the network status of the target network slice satisfies the third preset condition, the processor receives a fifth slice control request sent by the core network management device through the transceiver, and the fifth slice control request includes an identifier of the terminal device. The processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, thereby ensuring that the terminal devices that have accessed the source network slice can simultaneously access the target network slice.

With reference to the nineteenth aspect, in the first implementation manner of the nineteenth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

In combination with the nineteenth aspect, or the first implementation of the nineteenth aspect, in the second implementation of the nineteenth aspect, the network status information of the target network slice includes the core network control plane device in the target network slice The network state information of the target network slice and/or the network state information of the core network user plane device in the target network slice.

In a twentieth aspect, an embodiment of the present invention provides a terminal device, including a processor, a memory, and a transceiver. Wherein, the memory is used to store instructions, and the processor is used to call the instructions stored in the memory to perform the following operations: receiving the fourth slice control request sent by the core network management device through the transceiver, and the terminal device has connected to the source network slice. The fourth slice control request includes configuration indication information corresponding to the target network slice. The fourth slice control request is sent to the terminal device when the core network management device determines that the network state of the target network slice satisfies the third preset condition according to the network state information sent by the target network slice. The processor performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice. In this way, the requirement that the terminal device accesses two network slices at the same time is met.

With reference to the twentieth aspect, in the first implementation manner of the twentieth aspect, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

With reference to the twentieth aspect, or the first implementation manner of the twentieth aspect, in the second implementation manner of the twentieth aspect, the network state information of the target network slice includes the radio access network device in the target network slice The network state information of the target network slice and/or the network state information of the core network user plane device in the target network slice, or the network state information of the target network slice includes the network state information of the core network control plane device in the target network slice And/or information about the network state of the core network user plane device in the target network slice.

In the twenty-first aspect, the present invention provides a core network management device, the core network management device includes a module or unit for executing the network slicing control method described in the first aspect or any implementation manner of the first aspect .

In a twenty-second aspect, the present invention provides a radio access network device, the radio access network device including a module for executing the network slicing control method described in the second aspect or any implementation manner of the second aspect or unit.

In a twenty-third aspect, the present invention provides a core network user plane device, the core network user plane device including a module for executing the network slicing control method described in the third aspect or any implementation manner of the third aspect or unit.

In a twenty-fourth aspect, the present invention provides a core network control plane device, which includes a module for executing the network slicing control method described in the fourth aspect or any implementation manner of the fourth aspect or unit.

In a twenty-fifth aspect, the present invention provides a terminal device, which includes a module or unit for executing the network slicing control method described in the fifth aspect or any implementation manner of the fifth aspect.

In a twenty-sixth aspect, the present invention provides a core network management device, the core network management device includes a module or unit for executing the network slicing control method described in the sixth aspect or any implementation manner of the sixth aspect .

In a twenty-seventh aspect, the present invention provides a radio access network device, which includes a module for executing the network slicing control method described in the seventh aspect or any implementation manner of the seventh aspect or unit.

In a twenty-eighth aspect, the present invention provides a core network user plane device, the core network user plane device including a module for performing the network slicing control method described in the eighth aspect or any implementation manner of the eighth aspect or unit.

In a twenty-ninth aspect, the present invention provides a core network control plane device, the core network control plane device includes a module for executing the network slicing control method described in the ninth aspect or any implementation manner of the ninth aspect or unit.

In a thirtieth aspect, the present invention provides a terminal device, where the terminal device includes a module or unit for executing the network slice control method described in the tenth aspect or any implementation manner of the tenth aspect.

In a thirty-first aspect, the present invention provides a communication system, including a core network management device, a radio access network device, and a terminal device, wherein the core network management device is the one described in the eleventh aspect or the twenty-first aspect The core network management device, the wireless access network device is the wireless access network device described in the twelfth aspect or the twenty-second aspect, and the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect; or , the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect, the wireless access network device is the wireless access network device described in the seventeenth aspect or the twenty-seventh aspect, and the terminal The device is the terminal device described in the twentieth aspect or the thirtieth aspect.

In a thirty-second aspect, the present invention provides a communication system, including a core network management device, a core network user plane device, and a terminal device, wherein the core network management device is the one described in the eleventh aspect or the twenty-first aspect The core network management device, the core network user plane device is the core network user plane device described in the thirteenth aspect or the twenty-third aspect, and the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect; or , the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect, the core network user plane device is the core network user plane device described in the eighteenth aspect or the twenty-eighth aspect, and the terminal The device is the terminal device described in the twentieth aspect or the thirtieth aspect.

In a thirty-third aspect, the present invention provides a communication system, including a core network management device, a core network control plane device, and a terminal device, wherein the core network management device is the one described in the eleventh aspect or the twenty-first aspect The core network management device, the core network control plane device is the core network control plane device described in the fourteenth aspect or the twenty-fourth aspect, and the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect; or , the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect, the core network control plane device is the core network control plane device described in the nineteenth aspect or the twenty-ninth aspect, and the terminal The device is the terminal device described in the twentieth aspect or the thirtieth aspect.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a schematic diagram of the architecture of a network system provided by this patent application;

Fig. 2 is a schematic diagram of another network system provided by this patent application;

FIG. 3 is a signaling interaction diagram of Embodiment 1 of the network slicing control method provided by this patent application;

FIG. 4 is a signaling interaction diagram of Embodiment 2 of the network slicing control method provided by this patent application;

FIG. 5 is a signaling interaction diagram of Embodiment 3 of the network slicing control method provided by this patent application;

FIG. 6 is a signaling interaction diagram of Embodiment 4 of the network slicing control method provided by this patent application;

FIG. 7 is a signaling interaction diagram of Embodiment 5 of the network slicing control method provided by this patent application;

FIG. 8 is a signaling interaction diagram of Embodiment 6 of the network slicing control method provided by this patent application;

FIG. 9 is a schematic structural diagram of a core network management device provided by this patent application;

FIG. 10 is a schematic structural diagram of a wireless access network device provided in this patent application;

Fig. 11 is a schematic structural diagram of a core network user plane device provided by this patent application;

Fig. 12 is a schematic structural diagram of a core network control plane device provided by this patent application;

Fig. 13 is a schematic structural diagram of a terminal device provided by this patent application;

Fig. 14 is a schematic structural diagram of another core network management device provided by this patent application;

Fig. 15 is a schematic structural diagram of another radio access network device provided by this patent application;

Fig. 16 is a schematic structural diagram of another core network user plane device provided by this patent application;

Fig. 17 is a schematic structural diagram of another core network control plane device provided by this patent application;

Fig. 18 is a schematic structural diagram of another terminal device provided by this patent application.

Detailed ways

The terms used in the embodiments of the present invention are only used to explain specific examples of the present invention, and are not intended to limit the present invention. The technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention.

FIG. 1 is a schematic diagram of the architecture of a network system provided in this patent application. As shown in Figure 1, each network slice includes radio access network (English: Radio Access Network, RAN for short) equipment and core network (English: CoreNetwork, short: CN) user plane (English: User Plane, short for: UP) equipment. All network slices share a common core network control plane (English: Control Plane, CP for short) device. The functions that the common core network control plane device can provide include: session management, mobility management, user authentication, service authorization, and service quality control etc. The radio access network equipment in the network slice is connected to the core network user plane equipment through interfaces, the radio access network equipment is connected to the common core network control plane equipment through interfaces, and the core network user plane equipment is also connected to the public core network control plane equipment. connected through the interface. Among them, the functions of the wireless access network equipment include but are not limited to: mobility management for terminal equipment, call processing, link management, security encryption, header compression, scheduling, coding, modulation, demodulation, retransmission, segmentation, Convergence, radio frequency and other functions. The functions of the core network user plane device include but are not limited to: routing, filtering and forwarding of data packets. The core network user plane device sends user data from the terminal device to other devices, and can also send data from other devices to the terminal device, where other devices include but not limited to servers, packet data networks (English: Packet Data Network, Abbreviation: PDN).

In FIG. 1 , a terminal device 14 is connected to a network slice 11 . The network slice 11 includes a radio access network device 111 and a core network user plane device 112 . The terminal device 15 is connected to the network slice 12 . The network slice 12 includes a radio access network device 121 and a core network user plane device 122 . Terminal devices 16 are connected to network slices 13 . The network slice 13 includes a radio access network device 131 and a core network user plane device 132 . The service types corresponding to the network slice 11 , the network slice 12 and the network slice 13 may be the same or different. Wherein, the radio access network device 111 , the radio access network device 121 and the radio access network device 131 may be three mutually independent radio access network devices, or may be the same radio access network device. If the radio access network device 111, the radio access network device 121, and the radio access network device 131 are the same radio access network device, then the network slice 11, the network slice 12, and the network slice 13 each occupy a portion of the radio access network device. Different resources are distinguished from each other. Wherein, the resources include but are not limited to: antennas, beams, time-frequency resources, storage resources, and the like.

The wireless access network equipment described in the embodiments of the present invention may be 2G (such as Global System for Mobile Communications (English: Global System for Mobile Communications, GSM for short) or Code Division Multiple Access (English: CodeDivision Multiple Access, CDMA for short). )) The base transceiver station (English: Base Transceiver Station, referred to as: BTS) in the system can also be 3G (such as Universal Mobile Telecommunications System (English: Universal Mobile Telecommunications System, referred to as: UMTS), broadband code division multiple access (English: Wideband Code Division Multiple Access, referred to as: WCDMA), Time Division Synchronous Code Division Multiple Access (English: Time Division-Synchronous Code Division Multiple Access, referred to as: TD-SCDMA) base station (English: NodeB, referred to as: NB) system, also It may be an evolved base station (English: evolved Node B, abbreviated: eNB) in a long-term evolution (English: Long Term Evolution, abbreviated: LTE) system, or it may be a wireless access network device in a future 5G network.

The common core network control plane equipment for all network slices includes a mobility management equipment mobility management equipment 17, a home subscriber server 18, a policy and charging rule function equipment 19, and a slice manager (English: SliceManager, SM for short) 20 and a protocol configuration device 21 . Mobility management device The mobility management device 17, the slice manager 20, and the protocol configuration device 21 can be set on the same physical entity, or can be set separately on different physical entities. This embodiment takes separate setting as an example for illustration. The slice manager 20 is respectively connected with the mobility management device mobility management device 17 and the protocol configuration device 21, and the mobility management device mobility management device 17, the slice manager 20 and the protocol configuration device 21 are respectively connected with the home subscriber server 18 or Policies are connected to the charging rules function device 19 .

Among them, the main functions of the mobility management device mobility management device 17 include: access control (including security and admission control), mobility management (tracking the location of the terminal device), attaching and detaching, session management (including Core evolution (English: Evolved Packet Core, referred to as: EPC) bearer establishment, modification and release), etc. The home subscriber server 18 is mainly used to store the subscriber's subscription information, and is responsible for managing the subscriber's subscription data and the location information of the mobile subscriber. The functions of the policy and charging rule function device 19 mainly include: formulating policies and charging decisions based on the user's subscription information and service information used, such as service quality levels and charging rules.

The solid line "—" in Figure 1 indicates the connection of the user plane, and the dotted line Indicates the connection of the control plane. There are both user plane connections and control plane connections between terminal devices and network slices. The radio access network device in this embodiment has an access network control plane function and an access network user plane function. The radio access network device and the mobility management device are also connected through an interface.

The core network management device described in the following embodiments includes a slice manager 20 and a protocol configuration device 21 . The slice manager 20 and the protocol configuration device 21 may be located in the same physical entity, or may be located in different physical entities, and the two are connected through an interface. The core network management device may be located in an entity in the live network, and its logical function realizes the function of the core network management device. The slice manager 20 is responsible for generation of network slices, resource allocation, access selection and access authorization, etc. Wherein, the slice manager 20 completes the generation of network slices by establishing connections and bearers of each network slice. Select a default network slice for the terminal device according to the subscription information of the terminal device to implement access selection. When the terminal device needs to switch or re-access the network slice at the same time, the terminal device is authorized to implement access authorization when the terminal device can switch to the target network slice or access the target network slice. The protocol configuration device 21 is used for performing protocol configuration on network entity functions on the network slice according to the service types supported on the network slice, and selecting protocol configuration information corresponding to the network slice that the terminal device needs to access. Different types of services can be carried on different network slices. Terminal devices can access different network slices to perform different services.

When the first type of service is performed on the terminal device 14, it can be connected to the source network slice, and the source network slice is assumed to be the network slice 11. The network slicing control method provided by the embodiment of the present invention can be applied to the following three scenarios. Scenario 1: The terminal device 14 initially accesses the network slice 11, but because the first type of service consumes more network resources, after a period of time, the slice manager 20 initiates a The terminal device 14 is switched to the network slice 12, and the network slice 12 is a default network slice with low power consumption or a target network slice with a low load. Scenario 2: The terminal device 14 initially accesses the network slice 11. After a period of time, the terminal device 14 moves from the coverage of the radio access network device 111 of the network slice 11 to the coverage of the radio access network device 121 of the network slice 12. range, but the network slice 12 does not support the first type of service, only supports the default service, and the default service can generally support the user's basic communication service requirements, such as voice calls, short messages, etc. In order to ensure that users can access the network normally, the network will not be disconnected. Slice manager 20 switches end devices 14 to network slices 12 . Scenario 3: The terminal device 14 initially accesses the network slice 11, and after a period of time, the slice manager initiates the terminal device to simultaneously access the network slice 12, so that the terminal device 14 can perform the second type of service. For example, the terminal device 14 initially requested to access the network slice 12 , but the access request was rejected due to insufficient resources of the network slice 12 . After a period of time, the network slice 12 is released by a user and resources are sufficient, so the slice manager 20 initiates a process for the terminal device 14 to access the network slice 12 .

The terminal device in the embodiment of the present invention may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, and various forms of user equipment (English: User Equipment, referred to as: UE), a mobile station (English: MobileStation, referred to as: MS) and terminal (terminal), etc.

FIG. 2 is a schematic diagram of another network system provided by this patent application. As shown in FIG. 2 , network slices are segmented in the core network, and all network slices share radio access network equipment, for example, network slice 21 , network slice 22 and network slice 23 share radio access network equipment 25 . In addition, all network slices share common core network control plane equipment, which can provide functions such as mobility management and user authentication. The slice manager and protocol configuration equipment related to the present invention also belong to the public core network control plane equipment. Each network slice has its own core network user plane device and core network control plane device, and functions provided by the core network control plane device of each network slice may include: session management, etc. Separately setting some functions of the core network control plane on each network slice can isolate each network slice from each other, and each network slice will not affect each other. The core network control plane device in the network slice is connected to the core network user plane device through an interface, and the core network control plane device in the network slice is also connected to the public core network control plane device through an interface.

Common core network control plane equipment includes mobility management equipment mobility management equipment 26 , home subscriber server 27 , policy and charging rule function equipment 28 , slice manager 29 and protocol configuration equipment 30 . Mobility management device The functions of the mobility management device 26, the home subscriber server 27, the policy and charging rule function device 28, the slice manager 29, and the protocol configuration device 30 may refer to the description in the embodiment shown in FIG. No longer. In Figure 2, the solid line "—" indicates the connection of the user plane, and the dotted line Indicates the connection of the control plane.

When the first type of service is performed on the terminal device 24, it can be connected to the source network slice, and the source network slice is assumed to be the network slice 21. The network slicing control method provided in the embodiment of the present invention can be applied to the following two scenarios. Scenario 1: The terminal device 24 initially accesses the network slice 21, but since the first type of service consumes more network resources, after a period of time, the slice manager 29 initiates a The terminal device 24 is switched to the network slice 22, and the network slice 22 is a default network slice with low power consumption or a target network slice with a low load. Scenario 2, the terminal device 24 initially accesses the network slice 21, after a period of time, the terminal device 24 moves from the coverage area of the wireless access network device 25 to the coverage area of another wireless access network device (not shown in the figure), Another wireless access network device does not support the first type of service, but only supports default services, which generally can support the user's basic communication service needs, such as voice calls and short messages. In order to ensure that users can access the network normally, the network will not be disconnected. The slice manager 29 switches the end device 24 to the network slice 22 . Scenario 3: The terminal device 24 initially accesses the network slice 21, and after a period of time, the slice manager initiates the terminal device 24 to simultaneously access the network slice 22, so that the terminal device 24 can perform the second type of service. For example, the terminal device 24 initially requested to access the network slice 22 , but the access request was rejected due to insufficient resources of the network slice 22 . After a period of time, the network slice 22 is released by a user and resources are sufficient, so the slice manager 29 initiates a process for the terminal device 24 to access the network slice 22 .

The terminal device in the embodiment of the present invention may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, and various forms of UEs, MSs, and terminals.

FIG. 3 is a signaling interaction diagram of Embodiment 1 of the network slice control method provided by this patent application. This embodiment can be applied in the network architecture shown in FIG. 1 . In the embodiment of the present invention, the source network slice is the network slice that the terminal device has accessed, and the target network slice is the network slice to which the terminal device will switch. Both the source network slice and the target network slice include radio access network equipment and core network user plane equipment. The embodiment of the present invention can be applied to scenario 1: the terminal device initially accesses the source network slice, but since the service of the source network slice is a service that consumes network resources, after a period of time, the core network management device is out of network resources For the purpose of optimization, switch the terminal device to the target network slice to reduce the load pressure on the source network slice, wherein the target network slice is a default network slice with low network resource consumption or a network slice with low load. As shown in Figure 3, the network slicing control method provided by the embodiment of the present invention includes the following steps:

S301: The radio access network device of the source network slice sends the network state information of the source network slice to the core network management device. The core network management device receives the network status information of the source network slice sent by the radio access network device of the source network slice.

Specifically, the source network slice is a network slice that the terminal device accesses in advance according to user requirements. In order to prevent too many terminal devices connected to the source network slice from degrading the performance of terminal devices connected to the source network slice, the core network management device can monitor the network status of the source network slice. When the state meets the preset condition, the core network management device switches some or all of the terminal devices connected to the source network slice to the target network slice, so as to reduce the load pressure of the source network slice. The radio access network device of the source network slice sends the network status information of the source network slice to the core network management device, which enables the core network management device to know the network status of the source network slice, so as to optimize the network resources of the source network slice according to the network status. The radio access network device of the source network slice may periodically send network status information. For example, the radio access network device of the source network slice sends network status information every five minutes. The source network slicing and the core network management device can pre-determine a period. The radio access network device of the source network slice may also send network status information based on event triggers. For example, when the load of the source network slice is higher than a certain threshold, it is triggered to send network status information to the core network management device.

Wherein, the network state information of the source network slice may include the network state information of the radio access network equipment in the source network slice, and the network state information of the source network slice may include the network state information of the core network user plane equipment in the source network slice Information, the network state information of the source network slice may also include not only the network state information of the radio access network equipment in the source network slice, but also the network state information of the core network user plane equipment in the source network slice. The information of the network state may include the remaining value or load value of network resources, for example, the information of the network state is the ratio of the current available resources to the total available resources of the network slice or the ratio of the current network load to the maximum capacity of the network. The information on the network status may also include the network status, for example, the network resources are insufficient or the load is too heavy.

It should be noted that if the core network management device and the mobility management device are integrated and configured on the same physical entity, the radio access network device of the source network slice sends its own network status information to the core network management device. The core network management device receives the network status information sent by the radio access network device of the source network slice. If the core network management device and the mobility management device are separately set up on different physical entities, the radio access network device in the source network slice can first send its own network status information to the mobility management device to move sex management equipment. The mobility management device sends the network state information of the source network slice to the core network management device. The core network management device receives the network status information of the source network slice sent by the mobility management device.

S302: The core network management device judges whether the network state of the source network slice satisfies the first preset condition, and if so, execute step S303.

Wherein, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold. For example, the first preset threshold is 10%, and the second preset threshold is 90%. When the remaining network resource value of the source network slice is less than or equal to the first preset threshold or the load value of the source network slice is greater than or equal to the second preset threshold, the core network management device determines that the network status of the source network slice satisfies the first preset threshold. condition. The first preset condition may also be: the network status is insufficient network resources or excessive load. When the network state information of the source network slice indicates insufficient network resources or excessive load, the core network management device determines that the network state of the source network slice satisfies the first preset condition.

S303: The core network management device controls the terminal device to switch from the source network slice to the target network slice.

When the network state of the source network slice satisfies the first preset condition, the core network management device may switch some or all terminal devices connected to the source network slice to the target network slice, so as to reduce the load pressure of the source network slice. Wherein, the target network slice may be a default network slice with low consumption of network resources. By default, network slicing only supports the basic communication service needs of users, such as voice calls and short messages. Also, the default network slicing can support a large volume of users. Alternatively, the target network slice is a network slice satisfying the second preset condition. The second preset condition may be: the remaining value of the network resource is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold. For example, the third preset threshold is: 50%, and the fourth preset threshold is: 50%. Each network slice can be periodically or event-triggered to send its own network status information to the core network management device, so that the core network management device can learn the network status of each network slice, so that the load of the source network slice that the terminal device has access When the load is large or the remaining network resources are insufficient, select a target network slice with a small load or sufficient remaining network resources for slice switching.

Specifically, the step of the core network management device controlling the terminal device to switch from the source network slice to the target network slice includes the following steps S3031-S3038, and the detailed description of each step is as follows:

S3031: The core network management device authorizes the terminal device to access the target network slice.

Specifically, in an implementation manner, the core network management device records the identifiers of all terminal devices that have accessed the source network slice. The core network management device acquires one or more terminal device identifiers from the terminal device identifier set that has accessed the source network slice. For example, the identifier of the terminal device may be an International Mobile Subscriber Identification Number (English: International Mobile Subscriber Identification Number, IMSI for short) and the like. The core network management device obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the contract information, the core network management device authorizes the terminal device to access the target network slice. The subscription information here may include indication information of whether the core network management device is allowed to initiate a slice handover signed by the terminal device when accessing the network. Optionally, the subscription information may also include user quality of service (English: Quality of Service, QoS for short) information, and the QoS information may include: time delay, false positive rate, data transmission rate, bandwidth, and service priority one or more of .

Alternatively, when the radio access network device of the source network slice sends the network status information of the source network slice to the core network management device, it may also use the identification of one or more network resources currently connected to the source network slice that occupy a large amount of terminal equipment Send it to the core network management device. The core network management device obtains the identifier of the terminal device from the network state information, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the contract information, the core network management device authorizes the terminal device to access the target network slice.

Wherein, when the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, it may judge in the following manner: if the subscription information of the terminal device includes a The core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device. Of course, the core network management device may also use other methods to judge, which is not limited in this embodiment.

Wherein, the core network management device may also consider the QoS information of the terminal devices when determining which terminal devices connected to the source network slice need to be switched, and the number of terminal devices that need to perform slice switching may be preset by the core network management device, It can also be dynamically adjusted by the core network management device according to the network status of the source network slice. Taking the service priority in the QoS information as an example, if the source network slice is currently connected to three terminal devices, namely terminal device 1, terminal device 2, and terminal device 3, the service priority of the three terminal devices is They are: Priority 1, Priority 2 and Priority 3. If the core network management device determines that the three terminal devices allow the core network management device to perform network slice switching control on the terminal devices, and the number of terminal devices for slice switching preset by the core network management device is 2, then the core network management The device selects terminal device 2 and terminal device 3 with lower service priority to perform slice switching. In this way, it is ensured that the services of users of high-priority terminal devices are not affected, so that users of low-priority terminal devices are switched to the default network slice, and the network disconnection will not occur. Avoid the situation where the source network slicing is paralyzed and all terminal devices cannot access the network.

S3032: The core network management device sends a first slice control request to the terminal device through the radio access network device of the source network slice. The terminal device receives the first slice control request sent by the core network management device through the radio access network device of the source network slice.

Wherein, the first slice control request includes at least the identifier of the target network slice. The identifier of the target network slice is used for the terminal device to confirm which network slice to switch to.

Optionally, the first slice control request may also carry a request type identifier to indicate what type the first slice control request is. In the embodiment of the present invention, the request type identifier carried in the first slice control request is a slice switching type identifier.

Specifically, if the core network management device and the mobility management device are integrated and configured on the same physical entity, the core network management device may first send the first slice control request to the radio access network device of the source network slice , the radio access network device of the source network slice sends the first slice control request to the terminal device. The terminal device receives the first slice control request sent by the radio access network device of the source network slice. If the core network management device and the mobility management device are separately set up on different physical entities, the core network management device may first send the first slice control request to the mobility management device on the control plane. The mobility management device then sends the first slice control request to the radio access network device in the source network slice. The radio access network device in the source network slice then sends the first slice control request to the terminal device. The terminal device receives the first slice control request sent by the radio access network device in the source network slice.

Optionally, if the service type corresponding to the target network slice is inconsistent with the service type corresponding to the source network slice, the first slice control request further includes configuration instruction information corresponding to the target network slice. The configuration instruction information is used to instruct the terminal device to perform protocol configuration according to the configuration instruction information to access the target network slice.

The configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, may also be an identifier of the target network slice, or may be a service type corresponding to the target network slice.

S3033: The terminal device determines to switch from the source network slice to the target network slice according to the first slice control request.

S3034: The core network management device sends a second slice control request to the radio access network device of the target network slice, and the radio access network device of the target network slice receives the second slice control request sent by the core network management device.

Wherein, the second slice control request includes an identifier of the terminal device. The second slice control request is used to instruct the target network slice to establish a bearer for the terminal device.

Optionally, the second slice control request may also carry a request type identifier to indicate what type the second slice control request is. In this embodiment of the present invention, the request type identifier carried in the second slice control request is a slice switching type identifier.

S3035: The target network slice establishes a bearer for the terminal device according to the second slice control request.

Specifically, the target network slicing establishes the control plane bearer from the terminal device to the radio access network device and the control plane bearer from the radio access network device to the core network management device, and establishes the user plane bearer from the terminal device to the radio access network device and User plane bearer from radio access network equipment to core network user plane equipment.

S3036: After the target network slice establishes a bearer for the terminal device, the radio access network device of the target network slice sends a bearer establishment completion confirmation message to the core network management device, and the core network management device receives the message sent by the radio access network device of the target network slice acknowledgment message of bearer establishment completion.

The core network management device can determine that the target network slice has established a bearer for the terminal device according to the bearer establishment completion confirmation message.

S3037: The core network management device sends a third slice control request to the radio access network device of the source network slice, and the radio access network device of the source network slice receives the third slice control request sent by the core network management device.

Wherein, the third slice control request includes an identifier of the terminal device. The third slice control request is used to instruct the source network slice to tear down the bearer established for the terminal device.

Optionally, the third slice control request may also carry a request type identifier to indicate what type the third slice control request is. In the embodiment of the present invention, the request type identifier carried in the third slice control request is a slice switching type identifier.

S3038: The source network slice removes the bearer established for the terminal device according to the third slice control request.

Specifically, the source network slicing removes the user plane bearer from the terminal device to the radio access network device and the control plane bearer from the radio access network device to the core network management device, and removes the user plane bearer from the terminal device to the radio access network device and User plane bearer from radio access network equipment to core network user plane equipment. Removing bearers established for terminal devices can release corresponding resources and save network resource occupation.

S3039: The radio access network device of the source network slice sends a slice switching success message to the core network management device. The core network management device receives the slice switching success message sent by the radio access network device of the source network slice.

Optionally, after step S3033, step S30310 may also be included: the terminal device sends a slice control response message to the core network management device through the radio access network device of the source network slice. The core network management device receives the slice control response message sent by the terminal device through the radio access network device of the source network slice. The slice control response message is used to instruct the terminal device to accept the slice switching operation. The execution of step S3034 will not be triggered until the core network management device receives the slice control response message.

Optionally, if the first slice control request also includes configuration indication information corresponding to the target network slice, after step S3033, step S30311 is further included: the terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice to receive into the target network slice. The execution order of steps S30310 and S30311 is not limited.

Wherein, the configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, including which protocol layers need to be configured, and which functions need to be configured for each protocol layer. The terminal device performs corresponding configuration according to the protocol configuration information corresponding to the target network slice. Alternatively, the configuration indication information corresponding to the target network slice may also be an identifier of the target network slice, and the terminal device locally stores protocol configuration information corresponding to identifiers of different network slices. The terminal device searches for the protocol configuration information corresponding to the identifier of the target network slice according to the identifier of the target network slice sent by the core network management device, and performs corresponding configuration according to the protocol configuration information. Alternatively, the configuration indication information corresponding to the target network slice may also be a service type corresponding to the target network slice. The terminal device locally saves the protocol configuration information corresponding to network slices of different service types. The terminal device searches for the protocol configuration information corresponding to the service type of the target network slice according to the service type of the target network slice sent by the core network management device, and configures according to the protocol. The information is configured accordingly.

It should be noted that if the configuration indication information corresponding to the target network slice is the protocol configuration information corresponding to the target network slice, when the slice manager and the protocol configuration device in the core network management device are located in the same entity, that is, integrated together, After the core network management device authorizes the terminal device to access the target network slice, it can obtain the protocol configuration information corresponding to the target network slice from itself.

Specifically, the terminal device in the embodiment of the present invention is a terminal device with a protocol configuration function.

When the terminal device performs protocol configuration according to the protocol configuration information corresponding to the target network slice, there are the following two implementation methods:

The first implementation method: only one basic protocol configuration information is stored on the terminal device. After obtaining the protocol configuration information corresponding to the target network slice, the terminal device performs configuration on the basis of the basic protocol configuration information to ensure its own The protocol stack can be matched to the target network slice.

The second implementation method: multiple different protocol configuration information are stored on the terminal device. After obtaining the protocol configuration information corresponding to the target network slice, the terminal device selects the same protocol configuration information as the protocol configuration information corresponding to the target network slice. Configuration can be done.

So far, the terminal device has switched from the source network slice to the target network slice.

It should be noted that the execution order of step S3032 and step S3034 in this embodiment is not specifically limited. After the core network management device authorizes the terminal device to access the target network slice, it can first send the first slice control request to the terminal device through the radio access network device of the source network slice, and then send the first slice control request to the radio access network slice of the target network slice. The device sends a second slice switching control request. Alternatively, after the core network management device authorizes the terminal device to access the target network slice, it may first send a second slice switching control request to the radio access network device of the target network slice, and then pass the request to the radio access network device of the source network slice Send the first slice control request to the terminal device. There is a sequence relationship between steps S3035 and S3038, that is, the bearer between the terminal device and the target network slice is established first, and then the bearer between the terminal device and the source network slice is removed. This can ensure that services on the terminal device will not be interrupted.

For example, a terminal device has been connected to an evolved Massive Broadband (English: evolved Massive Broadband, eMBB for short) network slice for video services. Since the eMBB service is a service that consumes network resources, after a period of time, the eMBB network slice Due to the large number of connected terminal devices, the load is too large, and the remaining network resources are small, which cannot support the normal use of all currently connected terminal devices. Some or all of the terminal devices connected to the eMBB network slice are switched from the eMBB to the default network slice or other network slices satisfying the second preset condition, so as to reduce the load pressure of the eMBB network slice. Wherein, the second preset condition may be, for example, that the load value is less than or equal to a certain threshold value or the remaining value of network resources is greater than or equal to a certain threshold value.

In the network slicing control method provided by the embodiment of the present invention, the terminal device accesses the source network slice, the wireless access network device of the source network slice sends network status information to the core network management device, and the core network management device receives the wireless network slice of the source network Network status information sent by access network devices. If the network status of the source network slice satisfies the first preset condition, the core network management device controls the terminal devices connected to the source network slice to switch from the source network slice to the target network slice, thereby reducing the network load of the source network slice and realizing Resource optimization for network slicing.

In addition, the embodiment shown in FIG. 3 can also be applied to the second scenario: the terminal device initially accesses the source network slice, and after a period of time, the terminal device moves from the coverage area of the radio access network device in the source network slice to the target network slice However, the target network slice does not support the services corresponding to the source network slice. In order to ensure that the terminal device is not connected to the network, the core network management device switches the terminal device from the source network slice to the target network slice. For ease of description, the radio access network device in the target network slice is named as the target radio access network device, and the radio access network device in the source network slice is named as the source radio access network device, and the source radio access network device It is the wireless access network device where the terminal device currently resides.

In Scenario 2, each step is similar to the implementation process of each step in Scenario 1 shown in FIG. In order to feed back the channel quality between the terminal device and the source radio access network device to the source radio access network device, the channel quality may be reflected by a signal measurement value. The measurement report may also be fed back by the terminal device based on the measurement report request sent by the source radio access network device. The source radio access network device sends a measurement report report request to the terminal device, and the terminal device receives the measurement report report request sent by the source radio access network device. The terminal device sends the measurement report to the source radio access network device. The source radio access network device receives the measurement report sent by the terminal device. The measurement report may also be reported to the source radio access network device when the downlink measurement result of the terminal device meets a certain measurement event. The measurement event may be: the downlink signal measurement value of the terminal device to the source radio access network device is lower than a certain threshold value and the downlink signal measurement value of the terminal device to the target radio access network device is higher than a certain threshold value. The measurement event may also be: the measured value of the downlink signal of the target wireless access network device by the terminal device is higher than a certain threshold value. Here, the target radio access network device may be a certain neighboring radio access network device of the source radio access network device.

Wherein, the measurement report includes the first measurement value obtained by the terminal device from measuring the downlink signal of the source radio access network device, the second measurement value obtained by the terminal device from measuring the downlink signal of the target radio access network device, and the target radio The identification of the access network device. When the source radio access network device determines according to the measurement report that the measurement value of the terminal device on the source radio access network device is lower than a certain threshold, or when the measurement value of the terminal device on the source radio access network device is lower than a certain threshold and When the measurement value of the target radio access network device by the terminal device is higher than a certain threshold, the source radio access network device sends network status information to the core network management device. The core network management device receives the network status information sent by the source radio access network device. The network status information includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source wireless access network device, and the second measurement value obtained by the terminal device measuring the downlink signal sent by the target wireless access network device and the identifier of the target wireless access network device.

The first preset condition in this scenario is: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device. Specifically, the core network management device judges whether the second measured value is greater than the first measured value according to the network status information sent by the source wireless access network device. If so, it indicates that the terminal device has moved from the coverage area of the source wireless access network device to the target wireless network The coverage area of the access network device, the core network management device searches for the service type corresponding to the target wireless access network device according to the identification of the target wireless access network device, and searches for the source wireless access network device according to the identification of the source wireless access network device corresponding business type. The core network management device determines whether the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device, and if so, the core network management device triggers switching of the terminal device from the source network slice to the target network slice. Optionally, the identifier of the source radio access network device may be carried in the network state information and sent to the core network management device.

Optionally, the network status information also includes the identifier of the terminal device, and the core network management device authorizes the terminal device to access the target network slice as follows: the core network management device obtains the identifier of the terminal device from the network status information, and According to the identifier of the terminal device, the subscription information corresponding to the identifier of the terminal device is acquired from the home subscriber server or the policy and charging rule function device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the contract information, the core network management device authorizes the terminal device to access the target network slice.

It should be noted that in Scenario 2, the service type corresponding to the radio access network device in the target network slice is similar to the service type corresponding to the radio access network device in the source network slice. The configuration indication information corresponding to the target network slice sent by the management device performs protocol configuration to access the target network slice. Therefore, in the second scenario, the terminal device needs to perform step S30311.

In the network slice control method provided by the embodiment of the present invention, a terminal device accesses a source network slice, the source network slice sends network state information to a core network management device, and the core network management device receives the network state information sent by the source network slice. If the network status information satisfies the first preset condition, the core network management device controls the terminal devices connected to the source network slice to switch from the source network slice to the target network slice, thereby alleviating the load pressure on the source network slice and providing better service to the source network. In the network slicing, there is no terminal device with slice switching, so as to avoid the situation that the source network slicing is paralyzed and all terminal devices cannot access the network. At the same time, the terminal device in the source network slice that undergoes slice switching can be connected to the target network slice to maintain the network connection instead of directly disconnecting the network. And according to the solution of the present invention, the terminal device does not need to perform all the operations of re-connecting to the network, because the terminal device has already connected to the source network slice, and part of the network-connecting process based on the terminal device can be omitted, such as synchronization, random access, etc. The core network control functions shared between different network slices can also be shared, for example, user authentication, and terminal devices do not need to perform user authentication again when switching between different network slices.

In addition, in another implementation manner, the signaling interaction process of the radio access network device in the source network slice may also be performed by the core network user plane device in the source network slice. Correspondingly, the signaling interaction process of the radio access network device in the target network slice may also be performed by the core network user plane device in the target network slice. Specifically, for step S301: the core network user plane device in the source network slice sends the network state information of the source network slice to the core network management device. The processing flow of the core network user plane device in the source network slice is similar to the processing flow of the radio access network device in the source network slice in the embodiment shown in FIG. 3 , and will not be repeated here.

FIG. 4 is a signaling interaction diagram of Embodiment 2 of the network slice control method provided by this patent application. This embodiment can be applied in the network architecture shown in FIG. 2 . In this embodiment of the present invention, the source network slice is the network slice that the terminal device has accessed, and the target network slice is the network slice that the terminal device switches to. Both the source network slice and the target network slice include core network control plane devices and core network user plane devices. The embodiment of the present invention can be applied to scenario 1 and scenario 2. As shown in Figure 4, the network slicing control method provided by the embodiment of the present invention includes the following steps:

S401: The core network control plane device of the source network slice sends the network state information of the source network slice to the core network management device. The core network management device receives the network status information of the source network slice sent by the core network control plane device of the source network slice.

S402: The core network management device judges whether the network state of the source network slice satisfies a first preset condition, and if so, execute step S403.

S403: The core network management device controls the terminal device to switch from the source network slice to the target network slice.

Specifically, the step of the core network management device controlling the terminal device to switch from the source network slice to the target network slice includes the following steps S4031-S4038, and the detailed description of each step is as follows:

S4031: The core network management device authorizes the terminal device to access the target network slice.

S4032: The core network management device sends a first slice control request to the terminal device through the core network control plane device of the source network slice. The terminal device receives the first slice control request sent by the core network management device through the core network control plane device of the source network slice.

S4033: The terminal device determines to switch from the source network slice to the target network slice according to the first slice control request.

S4034: The core network management device sends a second slice control request to the core network control plane device of the target network slice, and the core network control plane device of the target network slice receives the second slice control request sent by the core network management device.

S4035: The target network slice establishes a bearer for the terminal device according to the second slice control request.

S4036: After the target network slice establishes a bearer for the terminal device, the core network control plane device of the target network slice sends a bearer establishment completion confirmation message to the core network management device, and the core network management device receives the message sent by the core network control plane device of the target network slice acknowledgment message of bearer establishment completion.

S4037: The core network management device sends a third slice control request to the core network control plane device of the source network slice, and the core network control plane device of the source network slice receives the third slice control request sent by the core network management device.

S4038: The source network slice removes the bearer established for the terminal device according to the third slice control request.

S4039: The core network control plane device of the source network slice sends a slice switching success message to the core network management device. The core network management device receives the slice switching success message sent by the core network control plane device of the source network slice.

Optionally, after step S4033, step S40310 may also be included: the terminal device sends a slice control response message to the core network management device through the core network control plane device of the source network slice. The core network management device receives the slice control response message sent by the terminal device through the core network control plane device of the source network slice. The slice control response message is used to instruct the terminal device to accept the slice switching operation. The execution of step S4034 will not be triggered until the core network management device receives the slice control response message.

Optionally, if the first slice control request also includes configuration indication information corresponding to the target network slice, after step S4033, step S40311 is further included: the terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice to accept into the target network slice. The execution order of steps S40310 and S40311 is not limited.

The implementation process of steps S401-S403 and S4031-S40311 in the embodiment of the present invention is similar to the implementation process of steps S301-S303 and S3031-S30311 in the first embodiment shown in FIG. 3 , and will not be repeated here. The difference is mainly reflected in: In this embodiment, the network state information of the source network slice includes network state information of the core network control plane device of the source network slice and/or network state information of the core network user plane device of the source network slice. For step S4032, the core network management device sends the first slice control request to the core network control plane device in the source network slice. The core network control plane device in the source network slice then sends the first slice control request to the radio access network device, and the radio access network device then sends the first slice control request to the terminal device.

In addition, establishing a bearer for the terminal device according to the second slice control request in the target network slice specifically includes: establishing a control plane bearer from the terminal device to an access network device, a control plane bearer from an access network device to a core network control plane device, and a core network control plane bearer. The control plane bearer from the terminal device to the network slice manager is established, and the user plane bearer from the terminal device to the access network device and the user plane bearer from the access network device to the core network user plane device are established. The source network slice removes the bearer established for the terminal device according to the third slice control request, specifically including: removing the control plane bearer from the terminal device to the access network device, the control plane bearer from the access network device to the core network control plane device, and the control plane bearer of the core network. Control plane bearer from plane device to network slice manager. Remove the user plane bearer from the terminal device to the access network device and the user plane bearer from the access network device to the core network user plane device.

Other processes are similar to those in Embodiment 1, and will not be repeated here.

In the network slicing control method provided by the embodiment of the present invention, the terminal device accesses the source network slicing, the core network control plane device of the source network slicing sends network status information to the core network management device, and the core network management device receives the core Network status information sent by the network control plane device. If the network status of the source network slice satisfies the first preset condition, the core network management device controls the terminal devices connected to the source network slice to switch from the source network slice to the target network slice, thereby reducing the network load of the source network slice and realizing Network resource optimization for network slicing.

FIG. 5 is a signaling interaction diagram of Embodiment 3 of the network slicing control method provided by this patent application. This embodiment can be applied in the network architecture shown in FIG. 1 . In the embodiment of the present invention, the source network slice is the network slice that the terminal device has accessed, and the target network slice is the network slice that the terminal device has failed to access. Both the source network slice and the target network slice include radio access network equipment and core network user plane equipment. The embodiment of the present invention can be applied to the third scenario: the terminal device initially accesses the source network slice, and after a period of time, in order to meet the needs of the terminal device for other types of services, the core network management device initiates the terminal device to simultaneously access the target network slice. As shown in Figure 5, the network slicing control method provided by the embodiment of the present invention includes the following steps:

S501: The radio access network device of the target network slice sends the network state information of the target network slice to the core network management device, and the core network management device receives the network state information of the target network slice sent by the radio access network device of the target network slice .

The network status information of the target network slice may include network status information of radio access network devices in the target network slice, and the network status information of the target network slice may include network status information of core network user plane devices in the target network slice , the network status information of the target network slice may also include not only the network status information of the radio access network device in the target network slice, but also the network status information of the core network user plane device in the target network slice. The information of the network state may include the remaining value or load value of network resources, for example, the information of the network state is the ratio of the current available resources to the total available resources of the network slice or the ratio of the current network load to the maximum capacity of the network. The information of the network state may also include the network state, for example, the network resource is sufficient or the load is light.

S502: The core network management device judges whether the network state of the target network slice satisfies a third preset condition, and if so, execute step S503.

Wherein, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold. For example, the fifth preset threshold value is: 90%. The sixth preset threshold value is: 10%. Alternatively, the third preset condition may also be: the network status is sufficient network resources or light load.

S503: The core network management device controls the terminal device to access the target network slice.

Specifically, the step of the core network management device controlling the terminal device to access the target network slice includes the following steps S5031-S5036, and the detailed description of each step is as follows:

S5031: The core network management device authorizes the terminal device to access the target network slice.

Specifically, the core network management device acquires the identifier of the terminal device from pre-recorded information. For example, the identifier of the terminal device may be an IMSI or the like. The core network management device obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines according to the contract information that the terminal device allows the core network management device to perform network slice access control on the terminal device, the core network management device authorizes the terminal device to access the target network slice. The subscription information here may include indication information of whether the core network management device is allowed to initiate slice access signed by the terminal device when it accesses the network. Optionally, the subscription information may also include user QoS information, and the QoS information may include: one or more of delay, false positive rate, data transmission rate, bandwidth, and service priority.

When the core network management device determines that the terminal device allows the core network management device to perform network slicing access control on the terminal device according to the subscription information, it can judge in the following way: if the subscription information of the terminal device includes a The core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device. Of course, the core network management device may also use other methods to judge, which is not limited in this embodiment.

When the core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device according to the contract information, it can also consider the QoS information of the terminal device. The bandwidth in the QoS information is used as an example to illustrate. If the terminal device If the subscription information includes the indication information for accepting the slice access initiated by the core network management device, and the bandwidth in the subscription information can meet the services corresponding to the target network slice, then the core network management device determines that the terminal device allows the core network management device to Perform network slicing access control on terminal devices.

S5032: The core network management device sends a fourth slice control request to the terminal device through the radio access network device of the source network slice, and the terminal device receives the fourth slice control request sent by the core network management device through the radio access network device of the source network slice .

Wherein, the fourth slice control request includes an identifier of the target network slice and configuration indication information corresponding to the target network slice. The identifier of the target network slice is used for the terminal device to confirm which network slice to newly access.

The configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, may also be an identifier of the target network slice, or may be a service type corresponding to the target network slice.

Optionally, the fourth slice control request may also carry a request type identifier to indicate what type the fourth slice control request is. In the embodiment of the present invention, the request type identifier carried in the fourth slice control request is a slice access type identifier.

S5033: The terminal device determines to access the target network slice according to the fourth slice control request, and performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.

Wherein, the configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, including which protocol layers need to be configured, and which functions need to be configured for each protocol layer. The terminal device performs corresponding configuration according to the protocol configuration information corresponding to the target network slice. Alternatively, the configuration indication information corresponding to the target network slice may also be an identifier of the target network slice. The terminal device locally saves the protocol configuration information corresponding to the identifiers of different network slices. The terminal device searches for the protocol configuration information corresponding to the identifier of the target network slice according to the identifier of the target network slice sent by the core network management device, and proceeds according to the protocol configuration information. Configure accordingly. Alternatively, the configuration indication information corresponding to the target network slice may also be a service type corresponding to the target network slice. The terminal device locally saves the protocol configuration information of network slices of different service types. The terminal device searches for the protocol configuration information corresponding to the service type of the target network slice according to the service type of the target network slice sent by the core network management device, and configures the information according to the protocol. Configure accordingly.

Specifically, the terminal device in the embodiment of the present invention is a terminal device with a protocol configuration function.

When the terminal device performs protocol configuration according to the protocol configuration information corresponding to the target network slice, there are the following two implementation methods:

The first implementation method: only one basic protocol configuration information is stored on the terminal device. After obtaining the protocol configuration information corresponding to the target network slice, the terminal device performs configuration on the basis of the basic protocol configuration information to ensure its own The protocol stack can be matched to the target network slice.

The second implementation method: multiple different protocol configuration information are stored on the terminal device. After obtaining the protocol configuration information corresponding to the target network slice, the terminal device selects the same protocol configuration information as the protocol configuration information corresponding to the target network slice. Configuration can be done.

S5034: The core network management device sends a fifth slice control request to the radio access network device of the target network slice, and the radio access network device of the target network slice receives the fifth slice control request sent by the core network management device.

Wherein, the fifth slice control request includes an identifier of the terminal device, and the fifth slice control request is used to instruct the target network slice to establish a bearer for the terminal device.

Optionally, the fifth slice control request may also carry a request type identifier to indicate what type the fifth slice control request is. In the embodiment of the present invention, the request type identifier carried in the fifth slice control request is a slice access type identifier.

S5035: The target network slice establishes a bearer for the terminal device according to the fifth slice control request.

Specifically, the target network slicing establishes the control plane bearer from the terminal device to the radio access network device and the control plane bearer from the radio access network device to the core network management device, and establishes the user plane bearer from the terminal device to the radio access network device and User plane bearer from radio access network equipment to core network user plane equipment.

S5036: The radio access network device of the target network slice sends a bearer establishment completion confirmation message to the core network management device. The core network management device receives the bearer establishment completion confirmation message sent by the radio access network device of the target network slice.

It should be noted that the terminal device requests to access the target network slice in advance, but due to insufficient network resources or heavy load of the target network slice, the terminal device fails to access, and the core network management device responds to the failed access request. Record, the recorded information includes: the identifier of the terminal device, the identifier of the target network slice that the terminal device requests to access, and the like. In order to know the state information of the target network slice in time, the target network slice periodically or event-triggered to send network state information to the core network management device, and the core network management device obtains the network state of the target network slice according to the network state information sent by the target network slice . If the network status of the target network slice satisfies the third preset condition within the preset time period, the core network management device will trigger the terminal device to be connected to the target network slice at the same time. If the preset time period is exceeded, the target network slice If the network state of the network does not meet the third preset condition, the core network management device will not trigger the simultaneous access of the terminal device to the target network slice. Wherein, the preset time period is, for example, 30 minutes.

Optionally, after step S5033, step S5037 may also be included: the terminal device sends a slice control response message to the core network management device through the radio access network device of the source network slice. The core network management device receives the slice control response message sent by the terminal device through the radio access network device of the source network slice. The slice control response message is used to instruct the terminal device to accept the slice access operation. The execution of step S5034 will not be triggered until the core network management device receives the slice control response message.

It should be noted that the sequence of execution of step S5032 and step S5034 in this embodiment is not specifically limited.

The difference between the embodiment of the present invention and the first embodiment shown in FIG. 3 is that the terminal device accesses two network slices at the same time, and the terminal device accesses the target network slice at the same time on the premise that the terminal device has already accessed the source network slice. Conduct both types of business at the same time.

For example, a terminal device has been connected to an eMBB network slice to provide video services. At this time, if the terminal device needs to connect to a smart meter to read electricity degrees, the eMBB network slice does not support the service of reading electricity meters. The terminal device initiates an access request to the network slice that can run and read the degree of electricity on the smart meter. At this time, due to the heavy load of the network slice that can read the degree of electricity on the smart meter, the remaining network resources The value is too small to satisfy the requirement to connect another terminal device. The core network management device rejects the access request of the terminal device. When the user releases the network slice that can read the electricity degree on the smart meter and the resources are sufficient, the core network management device will send the terminal that previously requested to access the network slice The device is connected to the network slice to meet the business requirements of the terminal device to read the degree of electricity on the smart meter.

In the network slicing control method provided by the embodiment of the present invention, the target network slice that the terminal device fails to access sends network status information to the core network management device, and the core network management device receives the network status information sent by the target network slice. If the network state information of the target network slice satisfies the third preset condition, the core network management device controls the terminal devices connected to the source network slice to simultaneously access the target network slice, so that when the terminal device is running the service of the source network slice, It can run the business requirements corresponding to the target network slice.

In addition, in another implementation manner, the signaling interaction process of the radio access network device in the target network slice may also be performed by the core network user plane device in the target network slice. Specifically, for step S501: the core network user plane device in the target network slice sends the network state information of the target network slice to the core network management device. The processing flow of the core network user plane device in the target network slice is similar to the processing flow of the radio access network device in the target network slice in the embodiment shown in FIG. 5 , and will not be repeated here.

FIG. 6 is a signaling interaction diagram of Embodiment 4 of the network slice control method provided by this patent application. This embodiment can be applied in the network architecture shown in FIG. 2 . In the embodiment of the present invention, the source network slice is the network slice that the terminal device has accessed, and the target network slice is the network slice that the terminal device has failed to access. Both the source network slice and the target network slice include core network control plane devices and core network user plane devices. The embodiment of the present invention can be applied in the third scenario. As shown in Figure 6, the network slice control method provided by the embodiment of the present invention includes the following steps:

S601: The core network control plane device of the target network slice sends the network state information of the target network slice to the core network management device, and the core network management device receives the network state information of the target network slice sent by the core network control plane device of the target network slice .

S602: The core network management device judges whether the network state of the target network slice satisfies the third preset condition, and if so, execute step S603.

S603: The core network management device controls the terminal device to access the target network slice.

Specifically, the step of the core network management device controlling the terminal device to access the target network slice includes the following steps S6031-S6036, and the detailed description of each step is as follows:

S6031: The core network management device authorizes the terminal device to access the target network slice.

S6032: The core network management device sends a fourth slice control request to the terminal device through the core network control plane device of the source network slice, and the terminal device receives the fourth slice control request sent by the core network management device through the core network control plane device of the source network slice. .

S6033: The terminal device determines to access the target network slice according to the fourth slice control request, and performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.

S6034: The core network management device sends a fifth slice control request to the core network control plane device of the target network slice, and the core network control plane device of the target network slice receives the fifth slice control request sent by the core network management device.

S6035: The target network slice establishes a bearer for the terminal device according to the fifth slice control request.

S6036: The core network control plane device of the target network slice sends a bearer establishment completion confirmation message to the core network management device. The core network management device receives the bearer establishment completion confirmation message sent by the core network control plane device of the target network slice.

Optionally, after step S6033, step S6037 may also be included: the terminal device sends a slice control response message to the core network management device through the core network control plane device of the source network slice. The core network management device receives the slice control response message sent by the terminal device through the core network control plane device of the source network slice. The slice control response message is used to instruct the terminal device to accept the slice access operation. The execution of step S6034 will not be triggered until the core network management device receives the slice control response message.

It should be noted that the sequence of execution of step S6032 and step S6034 in this embodiment is not specifically limited.

The implementation process of steps S601-S603 and S6031-S6037 in the embodiment of the present invention is similar to the implementation process of steps S501-S503 and S5031-S5037 in the third embodiment shown in FIG. 5 , and will not be repeated here. The difference is mainly reflected in that the network state information of the target network slice includes network state information of the core network control plane device in the target network slice and/or network state information of the core network user plane device in the target network slice. For step S6032, the core network management device sends the fourth slice control request to the core network control plane device in the source network slice. The core network control plane device in the source network slice then sends the fourth slice control request to the radio access network device, and the radio access network device then sends the fourth slice control request to the terminal device.

In the network slicing control method provided by the embodiment of the present invention, the terminal device accesses the source network slice, and the target network slice that the terminal device fails to access sends the first network state information to the core network management device, and the core network management device receives the target network slice Sent information about the state of the network. If the network status information satisfies the third preset condition, the core network management device controls the terminal devices connected to the source network slice to access the target network slice at the same time, so that the terminal device can run the target network while running the service of the source network slice. Slices correspond to business requirements.

It should be noted that the above-mentioned FIG. 3 to FIG. 6 are four embodiments described separately, and in practical applications, any two or more of the above-mentioned four embodiments can also be combined. For example, with regard to the network architecture shown in FIG. 1 , the radio access network device of the source network slice that the terminal device has accessed sends its own network status information to the core network management device. The core network management device receives the network status information sent by the radio access network device of the source network slice. The core network management device determines whether the network state of the source network slice meets the first preset condition or the third preset condition, and if the first preset condition is met, the core network management device controls the terminal device to switch from the source network slice to the target network slice . If the third preset condition is satisfied, the core network management device controls the terminal device that requests to access the source network slice in advance but fails to access to access the source network slice.

FIG. 7 is a signaling interaction diagram of Embodiment 5 of the network slice control method provided by this patent application. Describe the process of terminal devices initially accessing source network slices. This embodiment can be applied in the network architecture shown in FIG. 1 . The process includes steps S701-S707, and the detailed description of each step is as follows.

S701: The terminal device sends a slice access request to the core network management device through the radio access network device of the source network slice, and the core network management device receives the slice access request sent by the terminal device through the radio access network device of the source network slice.

The slice access request includes the identifier of the source network slice. Optionally, the slice access request further includes an identifier of the terminal device.

S702: The core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice according to the slice access request.

The core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device. The core network management device determines that the terminal device can access the source network slice according to the contract information and the identifier of the source network slice, and then the core network management device authorizes the terminal device to access the source network slice corresponding to the identifier of the source network slice. Through access authorization, the success rate of terminal devices accessing source network slices is improved.

When the core network management device determines that the terminal device can access the source network slice according to the subscription information and the identification of the source network slice, it can judge in the following way: if the subscription information of the terminal device includes the service corresponding to the source network slice, the core network management The device determines that the end device can access the source network slice. Of course, the core network management device may also use other methods to judge. For example, when the bandwidth of the subscription information can meet the service corresponding to the source network slice, the core network management device determines that the terminal device can access the source network slice. This embodiment does not limit this.

S703: The core network management device sends configuration indication information corresponding to the source network slice to the terminal device through the radio access network device of the source network slice. The terminal device receives the configuration instruction information corresponding to the source network slice sent by the core network management device through the radio access network device of the source network slice.

The configuration indication information corresponding to the source network slice may be protocol configuration information corresponding to the source network slice, may also be an identifier of the source network slice, or may be a service type corresponding to the source network slice.

S704: The terminal device performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice.

The configuration indication information corresponding to the source network slice may be protocol configuration information related to the source network slice, including which protocol layers need to be configured, and which functions need to be configured for each protocol layer. The terminal device performs corresponding protocol configuration according to the protocol configuration information. Alternatively, the configuration indication information corresponding to the source network slice may also be an identifier of the source network slice. The terminal device locally saves the protocol configuration information corresponding to the identifiers of different network slices. The terminal device searches for the protocol configuration information corresponding to the identifier of the source network slice according to the identifier of the source network slice sent by the core network management device, and proceeds according to the protocol configuration information. corresponding protocol configuration. Alternatively, the configuration instruction information corresponding to the source network slice may also be a service type corresponding to the source network slice. The terminal device locally saves the protocol configuration information corresponding to network slices of different service types. The terminal device searches for the protocol configuration information corresponding to the service type of the source network slice according to the service type of the source network slice sent by the core network management device, and configures according to the protocol. Information for corresponding protocol configuration. It should be noted that different types of services carried by different network slices require different protocol configuration methods.

S705: The core network management device sends a sixth slice control request to the radio access network device of the source network slice, and the radio access network device of the source network slice receives the sixth slice control request sent by the core network management device.

The sixth slice control request includes an identifier of the terminal device. Optionally, the sixth slice control request may also carry a request type identifier to indicate what type the sixth slice control request is. In the embodiment of the present invention, the request type identifier carried in the sixth slice control request is an access type identifier.

S706: The source network slice establishes a bearer for the terminal device according to the sixth slice control request.

Specifically, the source network slicing establishes the bearer of the control plane from the terminal device to the radio access network device of the source network slice, establishes the bearer of the control plane from the radio access network device of the source network slice to the core network management device, and establishes the bearer of the control plane from the terminal device to the source network device. The user plane bearer of the radio access network device of the network slice and the user plane bearer of the radio access network device of the source network slice to the core network user plane device of the source network slice are established.

S707: After the source network slice establishes a bearer for the terminal device, the radio access network device of the source network slice sends a bearer establishment completion confirmation message to the core network management device, and the core network management device receives the message sent by the radio access network device of the source network slice acknowledgment message of bearer establishment completion.

The bearer establishment completion confirmation message is used to indicate that the source network slice has established a bearer for the terminal device, and the bearer establishment completion confirmation message may also carry an identifier of the terminal device. So far, the terminal device has successfully accessed the source network slice.

It should be noted that the execution order of steps S703 and S705 is not specifically limited.

For the network architecture shown in FIG. 2 , the initial access process of the terminal device to the source network slice is roughly the same as the process of the embodiment shown in FIG. It is completed by the core network control plane device of the source network slice. For example, if it is not S701, the terminal device sends a slice access request to the core network management device through the core network control plane device of the source network slice, and the core network management device receives the slice access request sent by the terminal device through the core network control plane device of the source network slice. input request. Specifically, the terminal device sends a slice access request to the radio access network device, and the radio access network device receives the slice access request sent by the terminal device, and sends the slice access request to the core network control plane device of the source network slice, and the source The core network control plane device of the network slice then sends the slice access request to the core network management device. The core network management device receives the slice access request sent by the core network control plane device of the source network slice.

FIG. 8 is a signaling interaction diagram of Embodiment 6 of the network slicing processing method provided by this patent application. As shown in FIG. 8, the network slicing control method provided by the embodiment of the present invention is based on the first embodiment shown in FIG. 3, and is described in detail for the situation where the slice manager and the protocol configuration device in the core network management device are set separately:

S801: The slice manager determines whether the network state of the source network slice satisfies a first preset condition, and if so, executes step S802.

The implementation principle of step S801 is similar to that of step S302, and will not be repeated here.

S802: The slice manager sends a subscription information acquisition request to the home subscriber server/policy and charging rule function device. The home subscriber server/policy and charging rule function device receives the subscription information acquisition request sent by the slice manager.

Wherein, the subscription information acquisition request includes the identifier of the terminal device. The subscription information acquisition request is used to instruct to acquire the subscription information of the terminal device.

S803: The home subscriber server/policy and charging rule function device sends the subscription information corresponding to the identifier of the terminal device to the slice manager according to the subscription information acquisition request. The slice manager receives the subscription information of the terminal device sent by the home subscriber server/policy and charging rule function device.

S804: If the slice manager determines according to the subscription information that the terminal device allows the slice manager to perform network slice switching control on the terminal device, then the slice manager authorizes the terminal device to access the target network slice.

Here, the slice manager may refer to the description in step S3031 for the execution process of the slice manager to authorize the terminal device to access the target network slice, and details will not be repeated here.

S805: The slice manager sends a protocol configuration information acquisition request to the protocol configuration device. The protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager.

Wherein, the protocol configuration information acquisition request carries the identifier of the target network slice. The protocol configuration information acquisition request is used to request to acquire the protocol configuration information of the target network slice.

S806: The protocol configuration device searches for protocol configuration information corresponding to the target network slice according to the protocol configuration information acquisition request.

Specifically, the protocol configuration information includes protocol stack configuration information corresponding to the target network slice that needs to be adopted by the terminal device.

The identifier of the network slice and protocol configuration information corresponding to the identifier of the network slice are stored in the protocol configuration device. The protocol configuration device determines the protocol configuration information corresponding to the target network slice according to the identifier of the target network slice in the protocol configuration information acquisition request.

S807: The protocol configuration device sends the protocol configuration information to the slice manager, and the slice manager receives the protocol configuration information sent by the protocol configuration device.

Afterwards, the slice manager sends the protocol configuration information to the terminal device, and the terminal device receives the protocol configuration information. Specifically, the slice manager may send the protocol configuration information to the terminal device through the mobility management device and the radio access network device of the source network slice. The terminal device performs protocol configuration according to the protocol configuration information to access the target network slice.

The difference between the network slicing control method provided by the embodiment of the present invention and the network slicing control method shown in Figure 3 is that the slice manager and the protocol configuration device in the core network management device in the embodiment of the present invention are set separately, For the protocol configuration information corresponding to the slice, if the slice manager authorizes the terminal device to access the target network slice, the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device determines the target according to the protocol configuration information acquisition request. For the protocol configuration information of the network slice, the slice manager receives the protocol configuration information sent by the protocol configuration device and sends it to the terminal device. However, in the embodiment of the invention provided in FIG. 3 , the slice manager and the protocol configuration device in the core network management device are integrated together, and can directly determine the protocol configuration information corresponding to the target network slice.

In the network slicing control method provided by the embodiment of the present invention, the terminal device accesses the source network slice, the source network slice sends network state information to the slice manager, and the slice manager receives the network state information sent by the source network slice. If the network state of the source network slice satisfies the first preset condition, the slice manager authorizes the terminal device to access the target network slice, the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device configures the information according to the protocol The acquisition request determines the protocol configuration information corresponding to the target network slice, the protocol configuration device sends the protocol configuration information corresponding to the target network slice to the slice manager, and the slice manager receives the protocol configuration information corresponding to the target network slice. The slice manager sends protocol configuration information corresponding to the target network slice to the terminal device, and the terminal device performs protocol configuration according to the protocol configuration information to access the target network slice. The slice manager then notifies the target network slice to establish a bearer for the terminal device. Afterwards, the slice manager notifies the source network slice to remove the bearer established for the terminal device, thereby reducing the network load of the source network slice and realizing resource optimization of the source network slice.

It should be noted that, the above-mentioned embodiments shown in FIG. 4 to FIG. 6 are all examples of the integration of the slice manager and the protocol configuration device in the core network management device. The slice manager and the protocol configuration device in the core network management device in the illustrated embodiment can also be set separately, and the interaction process between the slice manager and the protocol configuration device when they are set separately can refer to the embodiment in Figure 8, which is not repeated here repeat.

In order to facilitate better implementation of the above network slice control method in the embodiment of the present invention, the present invention also provides related equipment for implementing the above method.

Referring to FIG. 9 , it is a schematic structural diagram of a core network management device provided in this patent application. As shown in FIG. 9 , a core network management device 90 includes a processor 901 , a memory 902 and a transceiver 903 . Wherein the processor 901, the memory 902 and the transceiver 903 may be connected through a bus or in other ways.

Optionally, the core network management device 90 may further include a network interface 904 and a power supply module 905 .

Wherein, the processor 901 may be a digital signal processing (English: Digital Signal Processing, DSP for short) chip.

The memory 902 is used to store instructions. In specific implementations, the memory 902 can be a read-only memory (English: Read-Only Memory, abbreviated: ROM) or a random access memory (English: Random Access Memory, abbreviated: RAM). In the embodiment of the present invention, the memory 902 is used to store the network slicing control program code, and the first preset threshold, the second preset threshold, the third preset threshold, the fourth preset threshold, the first preset threshold described in the above embodiments Five preset thresholds, sixth preset thresholds, etc.

The transceiver 903 is used to send and receive signals.

The network interface 904 is used for data communication between the core network management device 90 and other devices. The network interface 904 may be a wired interface or a wireless interface.

The power supply module 905 is used to supply power to various modules of the core network management device 90 .

In the first solution of the present application, the processor 901 is configured to perform the following operations:

The network status information sent by the source network slice is received by the transceiver 903, where the source network slice is a network slice that the terminal device has accessed. If the network status of the source network slice satisfies the first preset condition, the processor 901 controls the terminal device to switch from the source network slice to the target network slice.

Specifically, the processor 901 controls the terminal device to switch from the source network slice to the target network slice, including: the processor 901 authorizes the terminal device to access the target network slice. The processor 901 sends the first slice control request to the terminal device through the transceiver 903 . The first slice control request includes an identifier of the target network slice, and the identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice.

Optionally, the first slice control request further includes configuration instruction information corresponding to the target network slice, and the configuration instruction information is used to instruct the terminal device to perform protocol configuration according to the configuration instruction information to access the target network slice.

Specifically, after the processor 901 authorizes the terminal device to access the target network slice, the processor 901 is further configured to: send a second slice control request including the identifier of the terminal device to the target network slice through the transceiver 903 . The second slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device. When the processor 901 determines that the target network slice has established a bearer for the terminal device, it sends a third slice control request including the identifier of the terminal device to the source network slice through the transceiver 903 . The third slice control request is used to instruct the source network slice to remove the bearer established for the terminal device corresponding to the identifier of the terminal device.

Optionally, the processor 901 authorizes the terminal device to access the target network slice, including: the processor 901 obtains the identifier of the terminal device from a set of terminal device identifiers that have accessed the source network slice, and according to the identifier of the terminal device, from The home subscriber server or the device with the policy and charging rule function acquires the subscription information corresponding to the identifier of the terminal device. If the processor 901 determines according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor 901 performs default network slice access authorization on the terminal device.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the source network slice includes the identifier of the terminal device. The processor 901 authorizes the terminal device to access the target network slice, including: the processor 901 obtains the identifier of the terminal device from the information of the network state, and according to the identifier of the terminal device, obtains the information from the home subscriber server or the policy and charging rule The subscription information corresponding to the identifier of the terminal device is acquired in the functional device. If the processor 901 determines according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor 901 authorizes the terminal device to access the target network slice.

Optionally, the network status information sent by the source network slice includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

Specifically, the processor 901 receives the network status information sent by the source network slice through the transceiver 903, specifically: the processor 901 receives the information sent by the radio access network device or the core network user plane device or the core network control plane device through the transceiver 903. For information about the network state, the radio access network device or core network user plane device or core network control plane device is the device in the source network slice.

It should be noted that, the functions of each functional device in the core network management device 90 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network management device in the embodiment shown in FIG. 3 or FIG. 4 above, and will not be repeated here. .

In the second solution of this application, the processor 901 is used to call the programs and data stored in the memory 902, and perform the following operations: receive the network status information sent by the target network slice through the transceiver 903, and the target network slice is a terminal device The network slice that failed to be connected, the terminal device has been connected to the source network slice. If the network state of the target network slice satisfies the third preset condition, the processor 901 controls the terminal device to access the target network slice.

Specifically, the processor 901 controls the terminal device to access the target network slice, including: the processor 901 authorizes the terminal device to access the target network slice. The processor 901 sends a fourth slice control request to the terminal device through the transceiver 903, where the fourth slice control request includes configuration instruction information corresponding to the target network slice. The configuration indication information corresponding to the target network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information to access the target network slice.

Specifically, after the processor 901 authorizes the terminal device to access the target network slice, the processor 901 is further configured to: send a fifth slice control request including the identifier of the terminal device to the target network slice through the transceiver 903 . The fifth slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device.

Optionally, the processor 901 authorizes the terminal device to access the target network slice, including: the processor 901 acquires the terminal device identifier from a pre-recorded terminal device identifier set, and according to the terminal device identifier, obtains the Obtain the subscription information corresponding to the identifier of the terminal device in the device or in the policy and charging rule function device. If the processor 901 determines according to the subscription information that the terminal device allows the core network management device to perform network slice access control on the terminal device, the processor 901 authorizes the terminal device to access the target network slice.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

Specifically, the processor 901 receives the network status information sent by the target network slice through the transceiver 903, specifically: the processor 901 receives through the transceiver 903 the information sent by the radio access network device or the core network user plane device or the core network control plane device The network state information of the radio access network device or the core network user plane device or the core network control plane device is the device in the target network slice.

It should be noted that, the functions of each functional module in the core network management device 90 described in the embodiment of the present invention may refer to the relevant description of the corresponding core network management device in the embodiment shown in FIG. 5 or FIG. 6 above, and will not be repeated here. .

Referring to FIG. 10 , it is a schematic structural diagram of a radio access network device provided in this patent application. As shown in FIG. 10 , a radio access network device 100 includes a processor 1001 , a memory 1002 and a transceiver 1003 . The processor 1001, the memory 1002 and the transceiver 1003 may be connected through a bus or in other ways.

Optionally, the network slice 100 may further include a network interface 1004 and a power module 1005 .

Wherein, the processor 1001 may be a DSP chip.

The memory 1002 is used to store instructions. In specific implementation, the memory 1002 may be ROM or RAM. In the embodiment of the present invention, the memory 1002 is used to store network slice control program codes.

The transceiver 1003 is used to send and receive signals.

The network interface 1004 is used for data communication between the radio access network device 100 and other devices. The network interface 1004 can be a wired interface or a wireless interface.

The power supply module 1005 is used to supply power to each module of the network slice 100 .

In the first solution of the present application, the radio access network device 100 is a radio access network device in the source network slice that the terminal device has accessed. The processor 1001 is configured to perform the following operations:

Send the network status information of the source network slice to the core network management device through the transceiver 1003 . If the network state of the source network slice satisfies the first preset condition, the processor 1001 receives the second slice control request sent by the core network management device through the transceiver 1003 . The second slice control request includes the identifier of the terminal device. The processor 1001 removes the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the signing information corresponding to the identification of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slicing switching control on the terminal device according to the signing information, the core network management device performs target network slicing on the terminal device. Access authorization.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the processor 1001 through the transceiver 1003 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's measurement of the target The second measurement value obtained by measuring the downlink signal sent by the target radio access network device corresponding to the network slice and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the functions of each functional module in the wireless access network device 100 described in the embodiment of the present invention may refer to the related description of the corresponding wireless access network device in the above embodiment shown in FIG. 3 , and will not be repeated here.

In the second solution of the present application, the radio access network device 100 is a radio access network device in the target network slice for which the terminal device fails to access, and the terminal device has already accessed the source network slice. The processor 1001 is used to call programs and data stored in the memory 1002, and perform the following operations: send the network state information of the target network slice to the core network management device through the transceiver 1003. If the network state of the target network slice satisfies the third preset condition, the processor 1001 receives a fifth slice control request sent by the core network management device through the transceiver 1003, and the fifth slice control request includes an identifier of the terminal device. The processor 1001 establishes a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the wireless access network device 100 described in the embodiment of the present invention may refer to the related description of the corresponding wireless access network device in the above embodiment shown in FIG. 5 , which will not be repeated here.

Referring to FIG. 11 , it is a schematic structural diagram of a core network user plane device provided by this patent application. As shown in FIG. 11 , a core network user plane device 110 includes a processor 1101 , a memory 1102 and a transceiver 1103 . The processor 1101, the memory 1102 and the transceiver 1103 may be connected through a bus or in other ways.

Optionally, the network slice 110 may further include a network interface 1104 and a power module 1105 .

Wherein, the processor 1101 may be a DSP chip.

The memory 1102 is used to store instructions. In specific implementation, the memory 1102 may be ROM or RAM. In the embodiment of the present invention, the memory 1102 is used to store network slice control program codes.

The transceiver 1103 is used for sending and receiving signals.

The network interface 1104 is used for data communication between the core network user plane device 110 and other devices. The network interface 1104 can be a wired interface or a wireless interface.

The power supply module 1105 is used to supply power to each module of the network slice 110 .

In the first solution of the present application, the core network user plane device 110 is the core network user plane device in the source network slice that the terminal device has accessed. The processor 1101 is configured to perform the following operations:

Send the network state information of the source network slice to the core network management device through the transceiver 1103 . If the network state of the source network slice satisfies the first preset condition, the processor 1101 receives the second slice control request sent by the core network management device through the transceiver 1103 . The second slice control request includes the identifier of the terminal device. The processor 1101 removes the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the signing information corresponding to the identification of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slicing switching control on the terminal device according to the signing information, the core network management device performs target network slicing on the terminal device. Access authorization.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the processor 1101 through the transceiver 1103 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source core network user plane device corresponding to the source network slice, and the terminal device's measurement of the target The second measurement value obtained by measuring the downlink signal sent by the user plane device of the target core network corresponding to the network slice and the identifier of the user plane device of the target core network. The identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.

It should be noted that, the function of each functional module in the core network user plane device 110 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network user plane device in the above embodiment shown in FIG. 3 , and will not be repeated here.

In the second solution of the present application, the core network user plane device 110 is the core network user plane device in the target network slice where the terminal device fails to access, and the terminal device has already connected to the source network slice. The processor 1101 is configured to call programs and data stored in the memory 1102, and perform the following operations: send the network state information of the target network slice to the core network management device through the transceiver 1103. If the network status of the target network slice satisfies the third preset condition, the processor 1101 receives a fifth slice control request sent by the core network management device through the transceiver 1103 , where the fifth slice control request includes an identifier of the terminal device. The processor 1101 establishes a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the core network user plane device 110 described in the embodiment of the present invention may refer to the related description of the corresponding core network user plane device in the above embodiment shown in FIG. 5 , and will not be repeated here.

Referring to FIG. 12 , it is a schematic structural diagram of a core network control plane device provided by this patent application. As shown in FIG. 12 , the core network control plane device 120 includes a processor 1201 , a memory 1202 and a transceiver 1203 . The processor 1201, the memory 1202 and the transceiver 1203 may be connected through a bus or in other ways.

Optionally, the network slice 120 may further include a network interface 1204 and a power module 1205 .

Wherein, the processor 1201 may be a DSP chip.

The memory 1202 is used to store instructions. In specific implementation, the memory 1202 may be ROM or RAM. In the embodiment of the present invention, the memory 1202 is used to store network slice control program codes.

The transceiver 1203 is used to send and receive signals.

The network interface 1204 is used for data communication between the core network control plane device 120 and other devices. The network interface 1204 can be a wired interface or a wireless interface.

The power supply module 1205 is used to supply power to each module of the network slice 120 .

In the first solution of the present application, the core network control plane device 120 is the core network control plane device in the source network slice that the terminal device has accessed. The processor 1201 is configured to perform the following operations:

Send the network state information of the source network slice to the core network management device through the transceiver 1203 . If the network state of the source network slice satisfies the first preset condition, the processor 1201 receives the second slice control request sent by the core network management device through the transceiver 1203 . The second slice control request includes the identifier of the terminal device. The processor 1201 removes the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the subscription information corresponding to the identifier of the terminal device. If the processor 1201 determines according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor 1201 performs target network slice access to the terminal device. authorized.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network state information sent by the processor 1201 through the transceiver 1203 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's measurement of the target The second measurement value obtained by measuring the downlink signal sent by the target radio access network device corresponding to the network slice and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the function of each functional module in the core network control plane device 120 described in the embodiment of the present invention can refer to the related description of the corresponding core network control plane device in the above embodiment shown in FIG. 4 , and will not be repeated here.

In the second solution of the present application, the core network control plane device 120 is the core network control plane device in the target network slice where the terminal device fails to access, and the terminal device has already connected to the source network slice. The processor 1201 is configured to call programs and data stored in the memory 1202, and perform the following operations: send the network status information of the target network slice to the core network management device through the transceiver 1203. If the network state of the target network slice satisfies the third preset condition, the processor 1201 receives a fifth slice control request sent by the core network management device through the transceiver 1203, where the fifth slice control request includes the identifier of the terminal device. The processor 1201 establishes a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the function of each functional module in the core network control plane device 120 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network control plane device in the above embodiment shown in FIG. 6 , and will not be repeated here.

Referring to FIG. 13 , it is a schematic structural diagram of a terminal device provided in this patent application. As shown in FIG. 13, a terminal device 130 includes a processor 1301, a memory 1302, and a transceiver 1303, where the processor 1301, the memory 1302, and the transceiver 1303 may be connected through a bus or in other ways.

Optionally, the terminal device 130 may further include a network interface 1304 and a power module 1305 .

Wherein, the processor 1301 may be a DSP chip.

The memory 1302 is used to store instructions. In specific implementation, the memory 1302 may be ROM or RAM. In the embodiment of the present invention, the memory 1302 is used to store network slice control program codes.

The transceiver 1303 is used to send and receive signals.

The network interface 1304 is used for data communication between the terminal device 130 and other devices. The network interface 1304 can be a wired interface or a wireless interface.

The power supply module 1305 is used for supplying power to various modules of the terminal device 130 .

In the first solution of this application, the processor 1301 is configured to perform the following operations:

Receive the first slice control request sent by the core network management device through the transceiver 1303. The terminal device has accessed the source network slice. The first slice control request is judged by the core network management device based on the network status information sent by the source network slice. It is sent to the terminal device when the network state of the source network slice satisfies the first preset condition. The processor 1301 determines to switch from the source network slice to the target network slice according to the first slice control request.

Optionally, the first slice control request further includes configuration indication information corresponding to the target network slice. After the processor 1301 receives the first slice control request sent by the core network management device through the transceiver 1303, the processor 1301 is further configured to: perform protocol configuration according to the configuration indication information to access the target network slice.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the source network slice includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the functions of each functional module in the terminal device 130 described in the embodiment of the present invention may refer to the related description of the corresponding terminal device in the above embodiment shown in FIG. 3 or FIG. 4 , and will not be repeated here.

In the second solution of the present application, the processor 1301 is configured to perform the following operations:

The fourth slice control request sent by the core network management device is received by the transceiver 1303, and the terminal device has access to the source network slice. The fourth slice control request is sent to the terminal device when the core network management device determines that the network state of the source network slice satisfies the third preset condition according to the network state information sent by the target network slice. The processor 1301 performs protocol configuration according to the configuration instruction information corresponding to the target network slice to access the target network slice.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the terminal device 130 described in the embodiment of the present invention may refer to the relevant description of the corresponding terminal device in the embodiment shown in FIG. 5 or FIG. 6 above, and details are not repeated here.

Please refer to FIG. 14 , which is a schematic structural diagram of another core network management device provided by this patent application. As shown in FIG. 14 , the core network management device 140 includes: a receiving module 1401 and a control module 1402 .

In the first solution of the present application, the receiving module 1401 is configured to receive network status information sent by a source network slice, where the source network slice is a network slice that the terminal device has already accessed.

The control module 1402 is configured to control the terminal device to switch from the source network slice to the target network slice if the network status of the source network slice satisfies a first preset condition.

Specifically, the control module 1402 includes:

The authorization module is configured to authorize the terminal device to access the target network slice.

The first sending module is configured to send the first slice control request to the terminal device. The first slice control request includes an identifier of the target network slice, and the identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice.

Optionally, the first slice control request further includes configuration instruction information corresponding to the target network slice, and the configuration instruction information is used to instruct the terminal device to perform protocol configuration according to the configuration instruction information to access the target network slice.

Specifically, the control module 1402 also includes:

The second sending module is configured to send the second slice control request including the identifier of the terminal device to the target network slice. The second slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device.

A third sending module, configured to send a third slice control request including the identifier of the terminal device to the source network slice when it is determined that the target network slice has established a bearer for the terminal device. The third slice control request is used to instruct the source network slice to remove the bearer established for the terminal device corresponding to the identifier of the terminal device.

Optionally, the authorization module is specifically configured to: acquire the terminal device ID from the terminal device ID set that has accessed the source network slice, and according to the terminal device ID, from the home subscriber server or the policy and charging rule function device Obtain the subscription information corresponding to the identifier of the terminal device. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the authorization module performs default network slice access authorization on the terminal device.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition. Here, the default network slice is a network slice that can meet the most basic service requirements of the terminal device and is determined when the terminal device signs a contract.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the source network slice includes the identifier of the terminal device. The authorization module is specifically used to: obtain the identifier of the terminal device from the network state information, and obtain the subscription information corresponding to the identifier of the terminal device from the home subscriber server or the policy and charging rule function device according to the identifier of the terminal device . If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the terminal device is authorized to access the target network slice.

Optionally, the network status information sent by the source network slice includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

The receiving module 1401 is specifically configured to: receive network status information sent by radio access network equipment or core network user plane equipment or core network control plane equipment, where the radio access network equipment or core network user plane equipment or core network control plane equipment is Devices in the source network slice.

It should be noted that, the functions of each functional module in the core network management device 140 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network management device in the embodiment shown in FIG. 3 or FIG. 4 above, and will not be repeated here. repeat.

In the second solution of this application, the receiving module 1401 is configured to receive network state information sent by a target network slice, where the target network slice is a network slice for which the terminal device fails to access, and the terminal device has already connected to the source network slice.

The control module 1402 is configured to control the terminal device to access the target network slice if the network status of the target network slice satisfies the third preset condition.

Control module 1402 includes:

The authorization module is configured to authorize the terminal device to access the target network slice.

The first sending module is configured to send a fourth slice control request to the terminal device, where the fourth slice control request includes configuration indication information corresponding to the target network slice. The configuration indication information corresponding to the target network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information to access the target network slice.

The control module 1402 also includes:

The second sending module is configured to send the fifth slice control request including the identifier of the terminal device to the target network slice. The fifth slice control request is used to instruct the target network slice to establish a bearer for the terminal device corresponding to the identifier of the terminal device.

Optionally, the authorization module is specifically configured to: acquire the identity of the terminal equipment from the pre-recorded set of terminal equipment identity, and obtain the identity of the terminal equipment from the home subscriber server or the policy and charging rule function device according to the identity of the terminal equipment. The subscription information corresponding to the device ID. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice access control on the terminal device, then perform target network slice access authorization on the terminal device.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

The receiving module 1401 is specifically configured to: receive network status information sent by radio access network equipment or core network user plane equipment or core network control plane equipment, where the radio access network equipment or core network user plane equipment or core network control plane equipment is Devices in the target network slice.

It should be noted that, the functions of each functional module in the core network management device 140 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network management device in the embodiment shown in FIG. 5 or FIG. 6 above, and will not be repeated here. repeat.

Please refer to FIG. 15 , which is a schematic structural diagram of another radio access network device provided in this patent application. As shown in FIG. 15 , the radio access network device 150 includes: a sending module 1501 , a receiving module 1502 and a processing module 1503 .

In the first solution of the present application, the sending module 1501 is configured to send the network status information of the source network slice to the core network management device.

The receiving module 1502 is configured to receive a second slice control request sent by the core network management device if the network state of the source network slice satisfies the first preset condition. The second slice control request includes the identifier of the terminal device.

The processing module 1503 is configured to tear down the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the subscription information corresponding to the identifier of the terminal device. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device authorizes the terminal device to access the target network slice.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network state information sent by the sending module 1501 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the functions of each functional module in the wireless access network device 150 described in the embodiment of the present invention may refer to the related description of the corresponding wireless access network device in the above embodiment shown in FIG. 3 , which will not be repeated here.

In the second solution of the present application, the sending module 1501 is configured to send the network state information of the target network slice to the core network management device.

The receiving module 1502 is configured to receive a fifth slice control request sent by the core network management device if the network status of the target network slice satisfies the third preset condition. The fifth slice control request includes the identifier of the terminal device.

The processing module 1503 is configured to establish a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the wireless access network device 150 described in the embodiment of the present invention may refer to the related description of the corresponding wireless access network device in the above embodiment shown in FIG. 5 , which will not be repeated here.

Please refer to FIG. 16 , which is a schematic structural diagram of another core network user plane device provided by this patent application. As shown in FIG. 16 , the core network user plane device 160 includes: a sending module 1601 , a receiving module 1602 and a processing module 1603 .

In the first solution of the present application, the sending module 1601 is configured to send the network state information of the source network slice to the core network management device.

The receiving module 1602 is configured to receive the second slice control request sent by the core network management device if the network state of the source network slice satisfies the first preset condition. The second slice control request includes the identifier of the terminal device.

The processing module 1603 is configured to tear down the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the subscription information corresponding to the identifier of the terminal device. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device authorizes the terminal device to access the target network slice.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network state information sent by the sending module 1601 includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source core network user plane device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the user plane device of the target core network and the identifier of the user plane device of the target core network. The identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.

It should be noted that, the functions of each functional module in the core network user plane device 160 described in the embodiment of the present invention may refer to the relevant description of the corresponding core network user plane device in the above embodiment shown in FIG. 3 , and will not be repeated here.

In the second solution of the present application, the sending module 1601 is configured to send the network state information of the target network slice to the core network management device.

The receiving module 1602 is configured to receive a fifth slice control request sent by the core network management device if the network state of the target network slice satisfies the third preset condition. The fifth slice control request includes the identifier of the terminal device.

The processing module 1603 is configured to establish a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the core network user plane device 160 described in the embodiment of the present invention may refer to the relevant description of the corresponding core network user plane device in the above embodiment shown in FIG. 5 , and will not be repeated here.

Please refer to FIG. 17 , which is a schematic structural diagram of another core network control plane device provided by this patent application. As shown in FIG. 17 , the core network control plane device 170 includes: a sending module 1701 , a receiving module 1702 and a processing module 1703 .

In the first solution of the present application, the sending module 1701 is configured to send the network state information of the source network slice to the core network management device.

The receiving module 1702 is configured to receive the second slice control request sent by the core network management device if the network status of the source network slice satisfies the first preset condition. The second slice control request includes the identifier of the terminal device.

The processing module 1703 is configured to tear down the bearer established for the terminal device according to the second slice control request.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the network state information sent by the source network slice includes the identifier of the terminal device. The identifier of the terminal device is used to instruct the core network management device to obtain the information from the home subscriber server or the policy and charging rule function according to the identifier of the terminal device. The device obtains the subscription information corresponding to the identifier of the terminal device. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device authorizes the terminal device to access the target network slice.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the sending module 1701 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the function of each functional module in the core network control plane device 170 described in the embodiment of the present invention may refer to the relevant description of the corresponding core network control plane device in the above embodiment shown in FIG. 4 , and will not be repeated here.

In the second solution of the present application, the sending module 1701 is configured to send the network status information of the target network slice to the core network management device.

The receiving module 1702 is configured to receive a fifth slice control request sent by the core network management device if the network status of the target network slice satisfies the third preset condition. The fifth slice control request includes the identifier of the terminal device.

The processing module 1703 is configured to establish a bearer for the terminal device according to the fifth slice control request.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the function of each functional module in the core network control plane device 170 described in the embodiment of the present invention can refer to the relevant description of the corresponding core network control plane device in the above embodiment shown in FIG. 6 , and will not be repeated here.

Please refer to FIG. 18 , which is a schematic structural diagram of another terminal device provided by this patent application. As shown in FIG. 18 , the terminal device 180 includes: a receiving module 1801 and a processing module 1802 .

In the first solution of this application, the receiving module 1801 is configured to receive the first slice control request sent by the core network management device. The terminal device has accessed the source network slice, and the first slice control request is a core network management request. The device sends the information to the terminal device when it determines that the network status of the source network slice satisfies the first preset condition according to the network status information sent by the source network slice.

The processing module 1802 is configured to determine to switch from the source network slice to the target network slice according to the first slice control request.

Optionally, the terminal device 180 further includes: a configuration module, configured to perform protocol configuration according to the configuration indication information to access the target network slice.

Optionally, the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.

Optionally, the target network slice is a default network slice or a network slice satisfying a second preset condition.

Optionally, the second preset condition includes: a remaining value of network resources is greater than or equal to a third preset threshold or a load value is less than or equal to a fourth preset threshold.

Optionally, the network status information sent by the source network slice includes the first measurement value obtained by the terminal device from measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device's corresponding to the target network slice. The second measurement value obtained by measuring the downlink signal sent by the target radio access network device and the identifier of the target radio access network device. The identifier of the target radio access network device is used by the core network management device to determine the service type corresponding to the target radio access network device. The first preset condition includes: the second measurement value is greater than the first measurement value and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.

It should be noted that, the functions of each functional module in the terminal device 180 described in the embodiment of the present invention may refer to the relevant description of the corresponding terminal device in the above embodiment shown in FIG. 3 or FIG. 4 , and will not be repeated here.

In the second solution of the present application, the receiving module 1801 is configured to receive the fourth slice control request sent by the core network management device, and the terminal device has access to the source network slice. The fourth slice control request is sent to the terminal device when the core network management device determines that the network state of the target network slice satisfies the third preset condition according to the network state information sent by the target network slice.

The processing module 1802 is configured to perform protocol configuration to access the target network slice according to the configuration instruction information corresponding to the target network slice.

Optionally, the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.

It should be noted that, the functions of each functional module in the terminal device 180 described in the embodiment of the present invention may refer to the relevant description of the corresponding terminal device in the above embodiment shown in FIG. 5 or FIG. 6 , and will not be repeated here.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the drawings are used to distinguish similar objects and not necessarily to describe A particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (22)

1. The control method 1. a kind of network is cut into slices, it is characterised in that including：

   Core network management device receives the information for the network state that source network section is sent, and the source network section is terminal device The network section accessed；

   If the network state meets the first preparatory condition, the core network management device controls the terminal device from the source Network switches to objective network section.
2. 2. according to the method for claim 1, it is characterised in that the core network management device control the terminal device from The source network switches to objective network section, including：

   The core network management device carries out the objective network section insertion authority to the terminal device；

   The core network management device sends the first section control data to the terminal device；The first section control data Include the mark of objective network section, the mark of the objective network section is used to indicate the terminal device according to The mark of objective network section determines to switch to the objective network section from the source network.
3. 3. according to the method for claim 2, it is characterised in that the first section control data also includes the target network Configuration configured information corresponding to network section, the configuration configured information are used to indicate that the terminal device indicates according to the configuration Information carries out protocol configuration and cut into slices with accessing the objective network.
4. 4. according to the method in claim 2 or 3, it is characterised in that the core network management device is to the terminal device After carrying out the objective network section insertion authority, in addition to：

   The core network management device sends the second section control data to objective network section；The second section control Request includes the mark of the terminal device, and the second section control data is used to indicate that the objective network section is described Terminal device corresponding to the mark of terminal device establishes carrying；

   When the core network management device determines that the objective network section establishes carrying for the terminal device, the core Heart net management equipment sends the 3rd section control data to source network section；The 3rd section control data includes described The mark of terminal device, the 3rd section control data are used to indicate that the source network section is removed as the terminal device The carrying that terminal device corresponding to mark is established.
5. 5. according to the method described in any one of claim 2 to 4, it is characterised in that the core network management device is to the end End equipment carries out the objective network section insertion authority, including：

   The core network management device obtains the terminal from the Terminal Equipment Identifier set for having accessed the source network section The mark of equipment, and according to the mark of the terminal device, from home signature user server or strategy and charging regulation Signing information corresponding with the mark of the terminal device is obtained in function device；

   If the core network management device determines that the terminal device allows the core net management to set according to the signing information Standby that network section switching control is carried out to the terminal device, then the core network management device carries out institute to the terminal device State objective network section insertion authority.
6. 6. according to the method described in any one of claim 2 to 4, it is characterised in that the information of the network state includes institute State the mark of terminal device；The core network management device carries out the objective network section access to the terminal device and awarded Power, including：

   The core network management device obtains the mark of the terminal device from the information of the network state, and according to described The mark of terminal device, from home signature user server or strategy in charging rule functions equipment with obtaining and the end Signing information corresponding to the mark of end equipment；

   If the core network management device determines that the terminal device allows the core net management to set according to the signing information Standby that network section switching control is carried out to the terminal device, then the core network management device carries out institute to the terminal device State objective network section insertion authority.
7. 7. according to the method described in any one of claim 1 to 6, it is characterised in that the core network management device receives source net The information for the network state that network section is sent, including：

   The core network management device receives wireless access network equipment or core network user face equipment or core network control surface equipment The information of the network state of transmission, the wireless access network equipment or core network user face equipment or core net control Face equipment is the equipment in source network section.
8. The control method 8. a kind of network is cut into slices, it is characterised in that including：

   Wireless access network equipment sends the information of the network state of source network section to core network management device, and the source network is cut Piece is the network section that terminal device has accessed, and the wireless access network equipment is that the wireless access network of source network section is set It is standby；

   If the network state meets the first preparatory condition, the wireless access network equipment receives the core network management device hair The the second section control data sent, the second section control data include the mark of the terminal device；

   The wireless access network equipment is according to corresponding to the described second section control data dismounting for the mark of the terminal device The carrying that terminal device is established.
9. The control method 9. a kind of network is cut into slices, it is characterised in that including：

   Core network control surface equipment sends the information of the network state of source network section, the source network to core network management device The network accessed for terminal device of cutting into slices is cut into slices, and the core network control surface equipment is the core network control of source network section Face equipment processed；

   If the network state meets the first preparatory condition, the core network control surface equipment receives the core network management device The the second section control data sent, the second section control data include the mark of the terminal device；

   The core network control surface equipment is removed corresponding for the mark of the terminal device according to the described second section control data Terminal device establish carrying.
10. The control method 10. a kind of network is cut into slices, it is characterised in that including：

    Terminal device receives the first section control data that core network management device is sent；The terminal device has accessed source network Section, the first section control data are the network state that the core network management device is sent according to source network section Information judge that the network state of source network section meets to be sent to the terminal device, institute during the first preparatory condition Stating the first section control data includes the mark of objective network section；

    The terminal device determines to switch to the target network from the source network according to the described first section control data Objective network section corresponding to the mark of network section.
11. 11. according to the method for claim 10, it is characterised in that the first section control data also includes the target Configuration configured information corresponding to network section；The terminal device receives the first section control that core network management device is sent please After asking, in addition to：

    The terminal device carries out protocol configuration according to the configuration configured information and cut into slices with accessing the objective network.
12. A kind of 12. core network management device, it is characterised in that including processor, memory and transceiver, wherein, the storage Device is used for store instruction, and the processor is used to call the instruction stored in the memory to perform following operation：

    The information for the network state that source network section is sent is received by the transceiver, the source network section is terminal device The network section accessed；

    If the network state meets the first preparatory condition, the processor controls the terminal device to be cut into slices from the source network Switch to objective network section.
13. 13. core network management device according to claim 12, it is characterised in that the processor controls the terminal to set It is standby to switch to objective network section from the source network, including：

    The processor carries out the objective network section insertion authority to the terminal device；

    The processor sends the first section control data by the transceiver to the terminal device；The first section control System request is used to indicate that the mark that the terminal device is cut into slices according to the objective network determines to switch from source network section Cut into slices to the objective network.
14. 14. core network management device according to claim 13, it is characterised in that the first section control data is also wrapped Include configuration configured information corresponding to objective network section, the configuration configured information be used to indicating the terminal device according to The configuration configured information carries out protocol configuration and cut into slices with accessing the objective network.
15. 15. the core network management device according to claim 13 or 14, it is characterised in that the processor is to the terminal After equipment carries out the objective network section insertion authority, the processor is additionally operable to：

    Second section control data is sent to objective network section by the transceiver；The second section control data Include the mark of the terminal device, the second section control data is used to indicate that the objective network section is the terminal Terminal device corresponding to the mark of equipment establishes carrying；

    When the processor determines that the objective network section establishes carrying for the terminal device, pass through the transceiver The 3rd section control data is sent to source network section；The 3rd section control data includes the mark of the terminal device Know, the described 3rd cuts into slices control data for indicating that the source network section is removed to be whole corresponding to the mark of the terminal device The carrying that end equipment is established.
16. 16. according to the core network management device described in any one of claim 13 to 15, it is characterised in that the processor is to institute State terminal device and carry out the objective network section insertion authority, including：

    The processor obtains the mark of the terminal device from the Terminal Equipment Identifier set for having accessed the source network section Know, and according to the mark of the terminal device, from home signature user server or strategy and charging rule functions equipment It is middle to obtain signing information corresponding with the mark of the terminal device；

    If the processor determines that the terminal device allows the core network management device to described according to the signing information Terminal device carries out network section switching control, then the processor connects to the terminal device progress objective network section Enter to authorize.
17. 17. according to the core network management device described in any one of claim 13 to 15, it is characterised in that the network state Information includes the mark of the terminal device；The processor carries out the objective network section access to the terminal device Authorize, including：

    The processor obtains the mark of the terminal device from the information of the network state, and according to the terminal device Mark, from home signature user server or strategy in charging rule functions equipment with obtaining with the terminal device Signing information corresponding to mark；

    If the processor determines that the terminal device allows the core network management device to described according to the signing information Terminal device carries out network section switching control, then the processor connects to the terminal device progress objective network section Enter to authorize.
18. 18. according to the core network management device described in any one of claim 12 to 17, it is characterised in that the processor passes through The transceiver receives the information for the network state that source network section is sent, including：

    The processor receives wireless access network equipment or core network user face equipment by the transceiver or core net controls The information for the network state that face equipment is sent, the wireless access network equipment or core network user face equipment or the core Network control surface equipment is the equipment in source network section.
19. 19. a kind of wireless access network equipment, it is characterised in that the wireless access network equipment is the source net that terminal device has accessed The wireless access network equipment of network section, the wireless access network equipment include processor, memory and transceiver, wherein, it is described Memory is used for store instruction, and the processor is used to call the instruction stored in the memory to perform following operation：

    The information for the network state that the source network is cut into slices is sent to core network management device by the transceiver；

    If the network state meets the first preparatory condition, receive what the core network management device was sent by the transceiver Second section control data, the second section control data include the mark of the terminal device；

    The carrying that terminal device corresponding to being the mark of the terminal device is established is removed according to the described second section control data.
20. 20. a kind of core network control surface equipment, it is characterised in that the core network control surface equipment is what terminal device had accessed The core network control surface equipment of source network section；The core network control surface equipment includes processor, memory and transceiver, its In, the memory is used for store instruction, and the processor is used to call the instruction stored in the memory as follows to perform Operation：

    The information for the network state that the source network is cut into slices is sent to core network management device by the transceiver；

    If the network state meets the first preparatory condition, receive what the core network management device was sent by the transceiver Second section control data, the second section control data include the mark of the terminal device；

    The carrying that terminal device corresponding to being the mark of the terminal device is established is removed according to the described second section control data.
21. A kind of 21. terminal device, it is characterised in that including processor, memory and transceiver, wherein, the memory is used for Store instruction, the processor are used to call the instruction stored in the memory to perform following operation：

    The first section control data of core network management device transmission is received by the transceiver；The terminal device has accessed Source network is cut into slices, and the first section control data is the net that the core network management device is sent according to source network section The information of network state judges that the network state of the source network section meets that being sent to the terminal during the first preparatory condition sets Standby, the first section control data includes the mark of objective network section；

    Determined to switch to the mark of the objective network section from the source network according to the described first section control data Corresponding objective network section.
22. 22. terminal device according to claim 21, it is characterised in that the first section control data also includes described Configuration configured information corresponding to objective network section；The processor receives core network management device by the transceiver and sent First section control data after, the processor is additionally operable to：

    Protocol configuration is carried out according to the configuration configured information to cut into slices to access the objective network.