WO2022147836A1 - Connection establishment method and apparatus, and network device - Google Patents

Abstract

Embodiments of the present application provide a connection establishment method and apparatus, and a network device. The method comprises: a network device establishes a first connection for a first service of a terminal device, wherein an attribute parameter of the first connection is determined on the basis of an access technology of the terminal device.

Description

A connection establishment method and device, and network equipment technical field

The embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a method and apparatus for establishing a connection, and a network device.

Background technique

Satellite access is an important access technology, and terminal equipment can access ground base stations through satellites. Satellite access has the characteristics of wide coverage and extended time. The transmission delay of satellite access can be as high as several hundreds of milliseconds. If the connection is established according to the current attribute parameters, the transmission performance will not meet the requirements of the attribute parameters.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method and apparatus for establishing a connection, and a network device.

The connection establishment method provided by the embodiment of the present application includes:

The network device establishes a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device.

The connection establishment apparatus provided by the embodiment of the present application is applied to network equipment, and the apparatus includes:

The establishment unit is configured to establish a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device.

The network device provided by the embodiments of the present application includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the above-mentioned connection establishment method.

The chip provided by the embodiment of the present application is used to implement the above connection establishment method.

Specifically, the chip includes: a processor for invoking and running a computer program from the memory, so that the device installed with the chip executes the above-mentioned connection establishment method.

The computer-readable storage medium provided by the embodiments of the present application is used to store a computer program, and the computer program enables a computer to execute the above-mentioned connection establishment method.

The computer program product provided by the embodiments of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the above connection establishment method.

The computer program provided by the embodiment of the present application, when running on a computer, causes the computer to execute the above-mentioned connection establishment method.

Through the above technical solution, when the network device establishes the first connection for the first service of the terminal device, the attribute parameters of the first connection are determined based on the access technology of the terminal device. Therefore, it can be ensured that the transmission performance corresponding to the first connection can satisfy the attribute parameters of the first connection.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

2 is a schematic diagram of satellite access provided by an embodiment of the present application;

3 is a flowchart of a media negotiation process in a voice call establishment process provided by an embodiment of the present application;

4 is a schematic flowchart of a connection establishment method provided by an embodiment of the present application;

5 is a schematic flowchart of a PCF determining an access technology of a terminal device provided by an embodiment of the present application;

6 is a schematic flowchart of the establishment of a PCF-triggered dedicated QoS flow provided by an embodiment of the present application;

7 is a schematic flowchart of a base station initiating a special air interface connection according to an embodiment of the present application;

8 is a schematic structural diagram of a connection establishment device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a chip according to an embodiment of the present application;

FIG. 11 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex) , TDD), systems, 5G communication systems or future communication systems, etc.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied is shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the The network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system.

The communication system 100 also includes at least one terminal 120 located within the coverage of the network device 110 . "Terminal" as used herein includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections; and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or a device of another terminal configured to receive/transmit a communication signal; and/or an Internet of Things (IoT) device. A terminal arranged to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device. A terminal may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks or terminals in future evolved PLMNs, etc.

Optionally, direct terminal (Device to Device, D2D) communication may be performed between the terminals 120 .

Optionally, the 5G communication system or the 5G network may also be referred to as a new radio (New Radio, NR) system or an NR network.

FIG. 1 exemplarily shows one network device and two terminals. Optionally, the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminals. This embodiment of the present application This is not limited.

Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal 120 with a communication function, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here; The device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the following describes the technical solutions related to the embodiments of the present application.

Satellite access is an important access technology in the 5G system. Satellite access has the characteristics of wide coverage and extended time. The terminal equipment is connected to the ground base station through the satellite. As shown in Figure 2, the terminal equipment is connected to the satellite wireless access network, and is connected to the ground gateway through the satellite wireless access network, and then is connected to the ground base station through the ground gateway. The base station is connected to the core network. It should be pointed out that the terrestrial base station and the terrestrial gateway in FIG. 2 may be co-located or separated.

Satellite access is generally divided into Low Earth Orbit (LEO) satellite access, Medium Earth Orbit (MEO) satellite access, and Geosynchronous Equatorial Orbit (GEO) satellite access. The transmission delay of satellite access can reach the order of hundreds of milliseconds, which is very different from the transmission delay of traditional terrestrial base station access. As an example, the following Table 1 lists the transmission delays corresponding to different satellite accesses. It should be noted that the transmission delay in Table 1 is for illustration only, and the actual transmission delay may vary.

Table 1

With reference to Fig. 3, Fig. 3 is the flow chart of media negotiation process (media negotiation process) in the voice call establishment process, comprises the following steps:

1. The calling UE initiates an invitation to the calling proxy call session control function entity (Proxy-Call Session Control Function, P-CSCF).

2. The calling P-CSCF initiates an invitation to the calling Serving-Call Session Control Function (Serving-Call Session Control Function, S-CSCF).

3. The calling S-CSCF performs service control.

4. The calling S-CSCF queries the called party to query the call session control function entity (Interrogating-Call Session Control Function, I-CSCF).

5. The calling S-CSCF initiates an invitation to the called I-CSCF.

6. The called I-CSCF queries the called S-CSCF.

7. The called I-CSCF initiates an invitation to the called S-CSCF.

8. The called S-CSCF performs service control.

9. The called S-CSCF initiates an invitation to the called P-CSCF.

10. The called P-CSCF initiates an invitation to the called UE.

11. The called UE sends a proposal response to the called P-CSCF.

12. The called P-CSCF authorizes the QoS resources.

13. The called P-CSCF sends a proposal response to the called S-CSCF.

14. The called S-CSCF sends a proposal response to the called I-CSCF.

15. The called I-CSCF sends a proposal response to the calling S-CSCF.

16. The calling S-CSCF sends an offer response to the calling P-CSCF.

17. The calling P-CSCF authorizes the QoS resource.

18. The calling P-CSCF sends an offer response to the calling UE.

19. The calling UE performs resource reservation.

During the above voice call establishment process, an IP Multimedia Subsystem (IMS) is required to trigger the establishment of a Quality of Service (QoS) flow to the core network, and the 5G QoS Identifier (5QI ) takes the value of 1 (that is, 5QI=1). Specifically, in steps 12 and 17 shown in FIG. 3 , the P-CSCF in the IMS will trigger the establishment of the QoS flow of the voice service to the respective Policy Control Function (PCF). Wherein, the PCF judges that the establishment request is for the voice service according to the establishment request of the P-CSCF (the establishment request includes the identification information of the voice service), so the establishment of the QoS flow with 5QI=1 will be triggered.

Table 2 shows the requirements for QoS parameters corresponding to different 5QI values, where the QoS parameters take the packet delay budget (Packet Delay Budget, PDB) and the packet error rate (Packet Error Rate, PER) as examples. The values of PDB and PER in Table 2 are given based on ground base station access. The QoS flow with 5QI=1 is used for the transmission of voice service, the QoS flow with 5QI=2 is used for the transmission of video service, and the QoS flow with 5QI=5 is used for the transmission of IMS signaling. The QoS flow of 5QI=5 is established after the terminal equipment is registered; and the QoS flow of 5QI=1/2 is established only when the voice service/video service occurs, and is triggered by the IMS when the service ends.

For the voice service, the 5QI value of the QoS flow is 1. It can be seen from Table 2 that in the case of ground base station access, the PDB requirement of the voice service (corresponding to 5QI=1) is 100 milliseconds, while the satellite access In the case of incoming, the transmission delay of the voice service is as high as several hundreds of milliseconds, which cannot meet the PDB requirement of 5QI=1 shown in Table 2.

5QI priority level PDB PER 1 2 100 ms 10 ^-2 2 4 150 ms ^10-3 5 1 100 ms ^10-6

Table 2

For satellite access, it is necessary to redefine the 5QI value of the QoS flow of the voice service or the requirements of QoS parameters (such as the value of PDB and the value of PER) to meet the QoS requirements of the voice service. To this end, the technical solutions of the embodiments of the present application are proposed. The technical solutions of the embodiments of the present application will be described below.

It should be noted that, in the above-mentioned related art, the QoS flow of voice service is used as an example for description, and the technical solutions of the embodiments of the present application are not limited to the scene of QoS flow of voice service. All QoS flows are applicable, for example: QoS flows of video services.

It should be noted that, in the above-mentioned related art, the QoS parameters are PDB and PER as an example to illustrate, the technical solutions of the embodiments of the present application are not limited to PDB and PER, and other QoS parameters are also applicable, such as guaranteed stream bit rate ( Guaranteed Flow Bit Rate, GFBR), Maximum Flow Bit Rate (Maximum Flow Bit Rate, MFBR), Maximum Packet Loss Rate (Maximum Packet Loss Rate, MPLR), etc.

It should be noted that the technical solutions of the embodiments of the present application can be applied to any communication system, including but not limited to 5G system (5GS), 6G system (6GS), and the like.

FIG. 4 is a schematic flowchart of a connection establishment method provided by an embodiment of the present application. As shown in FIG. 4 , the connection establishment method includes the following steps:

Step 401: The network device establishes a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device.

In the embodiment of the present application, the network device determines the access technology of the terminal device, determines the attribute parameter of the first connection to be established according to the access technology of the terminal device, and establishes the first connection according to the attribute parameter.

In this embodiment of the present application, the first connection is used to transmit the first service. In an optional manner, the first service includes at least one of the following: a voice service and a video service. Further, optionally, the voice service may be an IMS voice service, and the video service may be an IMS video service. It should be noted that the IMS voice service refers to the voice service triggered by the IMS, and the IMS video service refers to the video service triggered by the IMS.

In this embodiment of the present application, the first connection is a data plane connection or an air interface connection. Here, the data plane connection refers to the connection between the terminal device and the user plane network element of the core network. Taking 5GS as an example, the core network user plane network element is UPF, and the data plane connection can be a QoS flow. The air interface connection refers to the connection between the terminal equipment and the base station. Taking 5GS as an example, the base station is a gNB, and the data plane connection is a data radio bearer (DRB). It should be noted that there is a mapping relationship between the data plane connection and the air interface connection, for example, one or more QoS flows may be mapped to (or bound to) one DRB.

In one example, the first connection is a QoS flow or an air interface connection of an IMS voice service.

In one example, the first connection is a QoS flow or an air interface connection of the IMS video service.

In this embodiment of the present application, the network device may be a first core network network element or a base station. In an optional manner, the network element of the first core network determines the attribute parameter of the QoS flow to be established according to the access technology of the terminal device, and establishes the QoS flow according to the attribute parameter. In another optional manner, the base station determines the attribute parameter of the air interface connection to be established according to the access technology of the terminal device, and establishes the air interface connection according to the attribute parameter. The following describes how to establish the first connection in different cases.

Case 1: The network device is the first core network element

If the first core network element determines that the access technology of the terminal device is satellite access, the first core network element triggers the establishment of a first connection with a first attribute parameter; if the first The core network element determines that the access technology of the terminal device is not satellite access, then the first core network element triggers the establishment of a first connection with a second attribute parameter; wherein the first attribute parameter is related to the All or part of the second attribute parameters are different.

In an optional method, the first attribute parameter and the second attribute parameter are totally or partially different, which means: the value of at least one of the following parameters in the first attribute parameter and the second attribute parameter Different: 5QI, PDB, PER.

In an example, taking 5GS as an example, the first core network element is a PCF. If the PCF determines that the access technology of the terminal device is satellite access, it triggers the establishment of a QoS flow with the first attribute parameter; It is determined that the access technology of the terminal equipment is ground base station access, and then the establishment of the QoS flow with the second attribute parameter is triggered. As an example, if the first service is a voice service, the first attribute parameter is 5QI=X1, the second attribute parameter is 5QI=1, X1 is a positive integer and X1 is not equal to 1, and the requirements of the QoS parameters corresponding to 5QI=X1 are the same as The requirements for QoS parameters corresponding to 5QI=1 are different, for example, the values of PDB and/or PER corresponding to 5QI=X1 are different from the values of PDB and/or PER corresponding to 5QI=1. As an example, if the first service is a video service, the first attribute parameter is 5QI=X2, the second attribute parameter is 5QI=2, X2 is a positive integer and X2 is not equal to 2, and the requirements of the QoS parameters corresponding to 5QI=X2 are the same as The requirements for QoS parameters corresponding to 5QI=2 are different, for example, the values of PDB and/or PER corresponding to 5QI=X2 are different from the values of PDB and/or PER corresponding to 5QI=2.

In an example, taking 5GS as an example, the first core network element is a PCF. If the PCF determines that the access technology of the terminal device is satellite access, it triggers the establishment of a QoS flow with the first attribute parameter; It is determined that the access technology of the terminal equipment is ground base station access, and then the establishment of the QoS flow with the second attribute parameter is triggered. As an example, if the first service is a voice service, the first attribute parameter includes: PDB=T1 ms, PER=R1%, and the second attribute parameter includes: PDB=100 ms, PER=1%, where T1 is not equal to 100 , R1 is not equal to 1, optionally, T1 is greater than 100, for example, T1=500, and R1 is greater than 1, for example, R1=3. As an example, if the first service is a video service, the first attribute parameters include: PDB=T2 ms, PER=R2%, and the second attribute parameters include: PDB=150 ms, PER=10%, where T2 is not equal to 150 , R2 is not equal to 10, optionally, T2 is greater than 150, for example, T2=800, and R2 is greater than 10, for example, R2=15.

In this embodiment of the present application, the network element of the first core network may, but is not limited to, determine the access technology of the terminal device in the following manner:

Manner 1: the first core network element receives the first indication information sent by the second core network element; wherein the first indication information is used to indicate whether the access technology of the terminal device is satellite access.

Taking 5GS as an example, the first core network element is PCF, and the second core network element is AMF. Specifically, the AMF sends first indication information to the PCF, where the first indication information is used to indicate whether the access technology of the terminal device is satellite access.

Mode 2: the first core network element receives the first indication information sent by the second core network element through the third core network element; wherein the first indication information is used to indicate the access of the terminal device Whether the technology is satellite access.

Taking 5GS as an example, the first core network element is PCF, the third core network element is SMF, and the second core network element is AMF. Specifically, the AMF sends first indication information to the PCF through the SMF, where the first indication information is used to indicate whether the access technology of the terminal device is satellite access.

In an optional manner, for the above manner 1 or manner 2, before the first core network element receives the first indication information, the first core network element sends the information to the second core network element. element or the third core network element to send a first subscription message, where the first subscription message is used to instruct the second core network element or the third core network element When the access technology is satellite access, the first indication information is sent to the first core network element. Taking 5GS as an example, the PCF sends the first subscription message to the AMF or SMF, and the AMF or SMF sends the first indication information to the PCF when it determines that the access technology of the terminal device is satellite access. If the PCF receives the first indication information, it can determine that the access technology of the terminal equipment is satellite access according to the first indication information; if the PCF does not receive the first indication information, the access technology of the terminal equipment is terrestrial by default. base station access.

In the above solution, before the network element of the second core network sends the first indication information to the network element of the first core network, the access technology of the terminal device needs to be determined. The network element of the second core network may determine the access technology of the terminal device in the following manner: the network element of the second core network receives the first message sent by the base station, where the first message carries the first indication information and/or the area of the base station information; wherein, the first indication information is used to indicate whether the access technology of the terminal equipment is satellite access; the area information of the base station is used to determine whether the access technology of the terminal equipment connected to the base station is satellite access access.

In the above solution, the first message may be a message between the network element of the second core network and the base station. Taking 5GS as an example, the first message is an N2 message. As an example, the N2 message may be an Initial Context Setup (Initial Context Setup) message, or an Initial Context Modification (Initial Context Modification) message, or a PDU Session Resource Setup (PDU Session Resource Setup) message, or a PDU Session Resource Modification (PDU Session Resource) message. Modify) message, etc.

In an optional manner, the first message carries first indication information, and the network element of the second core network can determine whether the access technology of the terminal device is satellite access according to the first indication information.

In an optional manner, the first message carries the area information of the base station, and the network element of the second core network can determine whether the base station is connected to the terminal device through the satellite access network through the area information of the base station (that is, determines whether the base station is connected to the base station). Whether the access technology of the terminal equipment is satellite access).

Here, optionally, the area information of the base station includes at least one of the following: TAC, at least one cell identifier, and base station identifier. In specific implementation, specific area information may be allocated to the base station accessed by the satellite, so that whether the base station is connected to the terminal device through the satellite access network can be determined through the area information of the base station.

For the first indication information in the above solution, in addition to indicating whether the access technology of the terminal device is satellite access, optionally, it is also used to indicate the type of satellite access. As an example, the satellite access type may be LEO satellite access, or MEO satellite access, or GEO satellite access.

In the embodiment of the present application, the network element of the first core network establishes the first connection of the first service based on the trigger of the IMS. Specifically, the first core network element receives a second message sent by the IMS, where the second message carries the service identifier of the first service, and the second message is used to indicate the first core network element A first connection is established for the first service.

Taking 5GS as an example, the first core network element is a PCF, and the PCF receives an Authorize/Authenticate-Request (AAR) message sent by the P-CSCF in the IMS, and the AAR message carries the information of the first service. Service identifier, the second message is used to instruct the first core network element to establish a first connection for the first service, where the first service is, for example, a voice service or a video service.

Case 2: The network device is a base station

If the base station determines that the access technology of the terminal device is satellite access, the base station triggers the establishment of the first connection with the first attribute parameter; if the base station determines that the access technology of the terminal device is not satellite access access, the first core network element triggers the establishment of a first connection with a second attribute parameter; wherein the first attribute parameter is completely or partially different from the second attribute parameter.

In an optional method, the first attribute parameter and the second attribute parameter are totally or partially different, which means: the value of at least one of the following parameters in the first attribute parameter and the second attribute parameter Different: 5QI, PDB, PER.

It should be noted that the base station in this embodiment of the present application refers to a ground base station.

In an example, taking 5GS as an example, if the base station determines that the access technology of the terminal device is satellite access, it triggers the establishment of an air interface connection with the first attribute parameter; if the base station determines that the access technology of the terminal device is terrestrial base station access Enter, trigger the establishment of the air interface connection with the second attribute parameter. As an example, if the first service is a voice service, the first attribute parameter is 5QI=X1, the second attribute parameter is 5QI=1, X1 is a positive integer and X1 is not equal to 1, and the requirements of the QoS parameters corresponding to 5QI=X1 are the same as The requirements for QoS parameters corresponding to 5QI=1 are different, for example, the values of PDB and/or PER corresponding to 5QI=X1 are different from the values of PDB and/or PER corresponding to 5QI=1. As an example, if the first service is a video service, the first attribute parameter is 5QI=X2, the second attribute parameter is 5QI=2, X2 is a positive integer and X2 is not equal to 2, and the requirements of the QoS parameters corresponding to 5QI=X2 are the same as The requirements for QoS parameters corresponding to 5QI=2 are different, for example, the values of PDB and/or PER corresponding to 5QI=X2 are different from the values of PDB and/or PER corresponding to 5QI=2.

In an example, taking 5GS as an example, if the base station determines that the access technology of the terminal device is satellite access, it triggers the establishment of an air interface connection with the first attribute parameter; if the base station determines that the access technology of the terminal device is terrestrial base station access Enter, trigger the establishment of the air interface connection with the second attribute parameter. As an example, if the first service is a voice service, the first attribute parameter includes: PDB=T1 ms, PER=R1%, and the second attribute parameter includes: PDB=100 ms, PER=1%, where T1 is not equal to 100 , R1 is not equal to 1, optionally, T1 is greater than 100, for example, T1=500, and R1 is greater than 1, for example, R1=3. As an example, if the first service is a video service, the first attribute parameters include: PDB=T2 ms, PER=R2%, and the second attribute parameters include: PDB=150 ms, PER=10%, where T2 is not equal to 150 , R2 is not equal to 10, optionally, T2 is greater than 150, for example, T2=800, and R2 is greater than 10, for example, R2=15.

In this embodiment of the present application, the base station may, but is not limited to, determine the access technology of the terminal device in the following manner:

Mode 1: Whether the access technology of the terminal device is satellite access is determined through interaction between the base station and the terminal device.

Mode 2: The base station determines whether the access technology of the terminal equipment is satellite access according to its own area information. Here, optionally, the area information of the base station includes at least one of the following: TAC, at least one cell identifier, and base station identifier. In specific implementation, specific area information may be allocated to the base station accessed by the satellite, so that whether the base station is connected to the terminal device through the satellite access network can be determined through the area information of the base station.

In the embodiment of the present application, the base station establishes the first connection based on the trigger of the network element of the first core network or the network element of the third core network. Specifically, the first core network element receives a second message sent by the IMS, where the second message carries the service identifier of the first service, and the second message is used to indicate that the first core network element is the The first service establishes a first connection. As an example, for a voice service, the first core network element initiates the establishment of a QoS flow with 5QI=1; for a video service, the first core network element initiates the establishment of a QoS flow with 5QI=2; The network element sends a QoS flow establishment request message to the base station, or the first core network element sends a QoS flow establishment request message to the base station through the third core network element. After receiving the QoS flow establishment request message sent by the first core network element or the third core network element, the base station triggers the establishment of an air interface connection with the first attribute parameter if the access technology of the terminal device is satellite access. ; If the access technology of the terminal equipment is ground base station access, trigger the establishment of an air interface connection with the second attribute parameter.

In the above solution, taking 5GS as an example, the first core network element is PCF, and the third core network element is SMF.

In an optional manner, when the base station triggers the establishment of the first connection with the first attribute parameter, the base station sends the second indication information to the first core network element; The core network element sends second indication information to the first core network element; wherein, the second indication information is used to indicate at least one of the following: the access technology of the terminal device is satellite access; it has the second attribute The first connection with the parameter cannot be established; the first connection with the first attribute parameter has been established.

In the above solution, taking 5GS as an example, the first core network element is PCF, and the third core network element is SMF.

In an optional manner of the present application, if the base station determines that the access technology of the terminal device is satellite access, the base station does not trigger the establishment of the air interface connection with the first attribute parameter, but sends the first core The network element sends the establishment rejection message or sends the establishment rejection message to the first core network element through the third core network element. Optionally, the establishment rejection message carries a rejection reason value. As an example, the rejection reason value includes at least one of the following One: The access technology of the terminal equipment is satellite access; the air interface connection with the second attribute parameter cannot be established. After the first core network element receives the establishment rejection message, it re-triggers the establishment of the QoS flow with 5QI=X. As an example, for the voice service, the first core network element initiates the establishment of the QoS flow with 5QI=X1. X1 is not equal to 1; for the video service, the network element of the first core network initiates the establishment of a QoS flow with 5QI=X2, and X2 is not equal to 2.

The technical solutions of the embodiments of the present application will be illustrated below with reference to specific application examples.

Application example 1

Referring to FIG. 5, FIG. 5 is a schematic flowchart of the PCF determining the access technology of the terminal device, including the following steps:

Step 501: The terminal device is connected to the base station by means of satellite access.

Here, the base station refers to a terrestrial base station. In an optional manner, the terminal device is connected to the ground base station through a satellite. In another optional manner, the terminal device is connected to the ground network element through the satellite, and is connected to the ground base station through the ground network element.

Step 502: The base station sends a message to the AMF mode N2, notifying the AMF terminal equipment whether the access is through satellite.

Here, the N2 message is, for example, an initial context establishment message, or an initial context modification message, or a PDU session resource establishment message, or a PDU session resource modification message, or the like.

AFM may, but is not limited to, determine whether a terminal device is connected via satellite in the following ways:

Mode 1: The AMF determines whether the terminal equipment connected to the base station is accessed through satellite through the area information of the base station (such as TAC, cell identifier). In a specific implementation, specific area information is allocated to a base station accessed through a satellite. In this way, the AMF can determine whether a terminal device connected to the base station is connected through a satellite according to the area information of the base station.

Manner 2: The AMF determines whether the terminal device accesses via satellite through the first indication information in the N2 message. Here, the first indication information is used to indicate whether the terminal device accesses via satellite. Further, optionally, the first indication information is also used to indicate the type of satellite access. Here, the type of satellite access is, for example, LEO satellite. Access, or MEO satellite access, or GEO satellite access.

Step 503a: The AMF sends the first indication information to the PCF through the SMF.

Here, the first indication information is used to indicate whether the terminal device accesses via satellite, and further, optionally, the first indication information is also used to indicate the type of satellite access. That is to say, the AMF indirectly informs the PCF whether the terminal device is connected through the satellite through the SMF.

Step 504a: The AMF directly sends the first indication information to the PCF.

Here, the first indication information is used to indicate whether the terminal device accesses via satellite, and further, optionally, the first indication information is also used to indicate the type of satellite access. That is to say, the AMF directly informs the PCF whether the terminal equipment is accessed through satellite.

It should be noted that, the above steps 503a and 504a may be executed alternatively, or both may be executed. In the case of executing both, the execution order of steps 503a and 504a is not limited.

Optionally, before steps 503a and 504a, the following steps are further included: the PCF sends a first subscription message of "change of access technology" to the AMF or SMF, when the AMF or SMF determines that the access technology of the terminal device is satellite access , and send the first indication information to the PCF.

Application example 2

Due to the high transmission delay of satellite access, the QoS requirements of the current voice service/video service cannot be applied to the satellite access scenario. Therefore, new attribute parameters need to be introduced to trigger the establishment of a dedicated QoS flow for PCF in the satellite access scenario. use. The new attribute parameters include, for example, a new 5QI value or a new QoS parameter value. As an example, the new QoS parameter value may be a new PDB value and a new PER value.

Referring to FIG. 6, FIG. 6 is a schematic flowchart of the establishment of a dedicated QoS flow triggered by the PCF, as shown in FIG. 6, including the following steps:

Step 601: The PCF receives the AAR message sent by the P-CSCF.

Here, the AAR message includes the service identifier of the first service, which instructs the PCF to establish the QoS flow of the first service. As an example, the first service is a voice service or a video video.

Step 602: If the access technology of the terminal device is satellite access, the PCF triggers the establishment of a dedicated QoS flow corresponding to the satellite access.

Here, for the PCF to determine whether the access technology of the terminal equipment is satellite access, reference may be made to the relevant description of the foregoing application example 1.

If the PCF determines that the terminal device accesses through the satellite, it initiates establishment of a dedicated QoS flow corresponding to the satellite access. Taking the voice service as an example, the PCF initiates the establishment of a QoS flow with 5QI=X1, where X1 is not equal to 1. Taking the video service as an example, the PCF initiates the establishment of a QoS flow with 5QI=X2, where X2 is not equal to 2.

It should be noted that the value of the 5QI of the dedicated QoS flow corresponding to the satellite access is different from the value of the 5QI of the QoS flow corresponding to the ground base station. Moreover, due to the different values of 5QI, the QoS parameters of the dedicated QoS flow corresponding to satellite access and the QoS parameters of the QoS flow corresponding to terrestrial base station access are also different. Taking voice service as an example, the QoS parameters of the dedicated QoS flow corresponding to satellite access include: PDB=T1 millisecond, PER=R1%, and the QoS parameters of the QoS flow corresponding to terrestrial base station access include: PDB=100 milliseconds, PER= 1%, wherein T1 is not equal to 100, and R1 is not equal to 1. Optionally, T1 is greater than 100, for example, T1=500, and R1 is greater than 1, for example, R1=3.

Step 603: The PCF sends a request for establishing a dedicated QoS flow to the base station via the SMF.

Step 604: Establish an air interface connection between the base station and the terminal device.

Application example 3

Referring to Figure 7, Figure 7 is a schematic flowchart of a base station initiating a special air interface connection, as shown in Figure 7, including the following steps:

Step 701: The PCF receives the AAR message sent by the P-CSCF.

Here, the AAR message includes the service identifier of the first service, which instructs the PCF to establish the QoS flow of the first service. As an example, the first service is a voice service.

Step 702: The PCF initiates the establishment of a QoS flow with 5QI=1.

Step 703: The PCF sends a QoS flow establishment request to the base station via the SMF.

Here, optionally, the PCF further sends first indication information to the base station, where the first indication information is used to indicate whether the access technology of the terminal device is satellite access. Here, for the PCF to determine whether the access technology of the terminal device is satellite access, reference may be made to the relevant description of the foregoing application example 1. As an example, the first indication information may be carried in a QoS flow establishment request message sent by the PCF.

Step 704: If the access technology of the terminal device is satellite access, the base station establishes a corresponding QoS flow and/or an air interface connection.

Here, the base station can sense whether the terminal device is connected to the base station through satellite access or the base station can also determine whether the terminal device is connected to the base station through satellite access through the first indication information sent by the PCF. If the terminal device is connected to the base station through satellite access, the base station establishes a QoS flow and/or air interface connection corresponding to the satellite access, wherein the QoS flow corresponding to the satellite access and/or the QoS parameter of the air interface connection corresponds to the terrestrial base station access The QoS parameters of the QoS flow and/or air interface connection are different.

Taking the voice service as an example, the QoS parameters of the QoS flow corresponding to the satellite access and/or the QoS parameter of the air interface connection include: PDB=T1 millisecond, PER=R1%, the QoS flow corresponding to the terrestrial base station access and/or the air interface connection QoS parameters (ie, QoS parameters corresponding to 5QI=1) include: PDB=100 milliseconds, PER=1%, where T1 is not equal to 100, and R1 is not equal to 1. Optionally, T1 is greater than 100, for example, T1=500, R1 Greater than 1, eg R1=3.

Step 705: The base station sends the second indication information to the SMF or the PCF.

It should be noted that step 705 is an optional step.

Here, the second indication information is used to indicate at least one of the following: the terminal device accesses via satellite; the QoS flow of 5QI=1 cannot be established; the base station establishes the air interface connection using QoS parameters different from those of 5QI=1.

Step 706: Establish an air interface connection between the base station and the terminal device.

It should be noted that step 705 and step 706 do not limit the execution order, and may be executed simultaneously or sequentially, for example, step 705 is executed first, and then step 706 is executed, or step 706 is executed first, and then step 705 is executed.

The technical solutions of the embodiments of the present application make full use of the existing mechanism, and realize the establishment of the first connection of the first service in the satellite access scenario by extending the attribute parameters of the first connection, so that the first service can be used in the satellite access scenario. proceeded smoothly.

FIG. 8 is a schematic structural diagram of a connection establishment apparatus provided by an embodiment of the present application, which is applied to a network device. As shown in FIG. 8 , the connection establishment apparatus includes:

The establishing unit 801 is configured to establish a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device.

In an optional manner, the device further includes:

A determining unit 802, configured to determine the access technology of the terminal device.

In an optional manner, the network device is a first core network element; the apparatus further includes:

A receiving unit 803, configured to receive the first indication information sent by the network element of the second core network; or, receive the first indication information sent by the network element of the second core network through the network element of the third core network;

Wherein, the first indication information is used to indicate whether the access technology of the terminal device is satellite access.

In an optional manner, the device further includes:

A sending unit 804, configured to send a first subscription message to the second core network element or the third core network element, where the first subscription message is used to indicate the second core network element or the third core network element The third core network element sends the first indication information to the first core network element when it is determined that the access technology of the terminal device is satellite access.

In an optional manner, the first message is sent by the base station to the second core network element, and the first message carries the first indication information and/or the area information of the base station;

The first indication information is used to indicate whether the access technology of the terminal device is satellite access; the area information of the base station is used to determine whether the access technology of the terminal device connected to the base station is satellite access .

In an optional manner, the area information of the base station includes TAC and/or at least one cell identity.

In an optional manner, the first indication information is further used to indicate the satellite access type.

In an optional manner, the receiving unit 803 is further configured to receive a second message sent by the IMS, where the second message carries the service identifier of the first service, and the second message is used to indicate the first service. A core network element establishes a first connection for the first service.

In an optional manner, if the determining unit 802 determines that the access technology of the terminal device is satellite access, the establishing unit 801 triggers the establishment of the first connection with the first attribute parameter;

If the determining unit 802 determines that the access technology of the terminal device is not satellite access, the establishing unit 801 triggers the establishment of the first connection with the second attribute parameter;

Wherein, the first attribute parameter is completely or partially different from the second attribute parameter.

In an optional manner, the first connection is a data plane connection.

In an optional manner, the network device is a base station;

The determining unit 802 is configured to determine whether the access technology of the terminal device is satellite access.

In an optional manner, the device further includes:

The receiving unit 803 is configured to receive a first connection establishment request message sent by the first core network element or the third core network element.

In an optional manner, if the determining unit 802 determines that the access technology of the terminal device is satellite access, the establishing unit 801 triggers the establishment of the first connection with the first attribute parameter;

If the determining unit 802 determines that the access technology of the terminal device is not satellite access, the establishing unit 801 triggers the establishment of the first connection with the second attribute parameter;

Wherein, the first attribute parameter is completely or partially different from the second attribute parameter.

In an optional manner, the device further includes:

A sending unit 804, configured to send the second indication information to the first core network element; or, send the second indication information to the first core network element through the third core network element;

Wherein, the second indication information is used to indicate at least one of the following:

The access technology of the terminal equipment is satellite access;

The first connection with the second attribute parameter cannot be established;

The first connection with the first attribute parameter has been established.

In an optional manner, the first connection is an air interface connection.

In an optional manner, the first attribute parameter is completely or partially different from the second attribute parameter, which means:

The first attribute parameter and the second attribute parameter have different values of at least one of the following parameters: 5QI, PDB, and PER.

In an optional manner, the first service includes at least one of the following: a voice service and a video service.

Those skilled in the art should understand that the relevant description of the above-mentioned connection establishment apparatus in the embodiment of the present application can be understood with reference to the relevant description of the connection establishment method in the embodiment of the present application.

FIG. 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application. The communication device may be a terminal device or a network device. The communication device 900 shown in FIG. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the methods in the embodiments of the present application.

Optionally, as shown in FIG. 9 , the communication device 900 may further include a memory 920 . The processor 910 may call and run a computer program from the memory 920 to implement the methods in the embodiments of the present application.

The memory 920 may be a separate device independent of the processor 910 , or may be integrated in the processor 910 .

Optionally, as shown in FIG. 9 , the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by the device.

Among them, the transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 900 may specifically be the network device of the embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 900 may specifically be the mobile terminal/terminal device in the embodiments of the present application, and the communication device 900 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.

FIG. 10 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10 , the chip 1000 may further include a memory 1020 . The processor 1010 may call and run a computer program from the memory 1020 to implement the methods in the embodiments of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030 . The processor 1010 can control the input interface 1030 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040 . The processor 1010 can control the output interface 1040 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. For brevity, here No longer.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

FIG. 11 is a schematic block diagram of a communication system 1100 provided by an embodiment of the present application. As shown in FIG. 11 , the communication system 1100 includes a terminal device 1110 and a network device 1120 .

The terminal device 1110 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (39)

A connection establishment method, the method comprising: The network device establishes a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device. The method of claim 1, wherein the method further comprises: The network device determines the access technology of the terminal device. The method according to claim 2, wherein the network device is a first core network element; The network device determines the access technology of the terminal device, including: The first core network element receives the first indication information sent by the second core network element; or, The first core network element receives the first indication information sent by the second core network element through the third core network element; Wherein, the first indication information is used to indicate whether the access technology of the terminal device is satellite access. The method according to claim 3, wherein before the first core network element receives the first indication information, the method further comprises: The first core network element sends a first subscription message to the second core network element or the third core network element, where the first subscription message is used to instruct the second core network element or The third core network element sends the first indication information to the first core network element when it is determined that the access technology of the terminal device is satellite access. The method according to claim 3 or 4, wherein the method further comprises: The second core network element receives a first message sent by the base station, where the first message carries first indication information and/or area information of the base station; The first indication information is used to indicate whether the access technology of the terminal device is satellite access; the area information of the base station is used to determine whether the access technology of the terminal device connected to the base station is satellite access . The method according to claim 5, wherein the area information of the base station includes a tracking area code TAC and/or at least one cell identity. The method according to any one of claims 3 to 6, wherein the first indication information is further used to indicate a satellite access type. The method of any one of claims 3 to 7, wherein the method further comprises: The first core network element receives a second message sent by the IP multimedia system IMS, where the second message carries the service identifier of the first service, and the second message is used to indicate the first core network element A first connection is established for the first service. The method according to any one of claims 3 to 8, wherein the network device establishes the first connection for the first service of the terminal device, comprising: If the first core network element determines that the access technology of the terminal device is satellite access, the first core network element triggers the establishment of the first connection with the first attribute parameter; If the first core network element determines that the access technology of the terminal device is not satellite access, the first core network element triggers the establishment of the first connection with the second attribute parameter; Wherein, the first attribute parameter is completely or partially different from the second attribute parameter. The method of any one of claims 3 to 9, wherein the first connection is a data plane connection. The method according to claim 2, wherein the network device is a base station; The network device determines the access technology of the terminal device, including: The base station determines whether the access technology of the terminal equipment is satellite access. The method of claim 11, wherein the method further comprises: The base station receives a first connection establishment request message sent by the first core network element or the third core network element. The method according to claim 11 or 12, wherein the network device establishes the first connection for the first service of the terminal device, comprising: If the base station determines that the access technology of the terminal device is satellite access, the base station triggers the establishment of the first connection with the first attribute parameter; If the base station determines that the access technology of the terminal device is not satellite access, the first core network element triggers the establishment of the first connection with the second attribute parameter; Wherein, the first attribute parameter is completely or partially different from the second attribute parameter. The method according to claim 13, wherein, when the base station triggers the establishment of the first connection with the first attribute parameter, the method further comprises: The base station sends the second indication information to the network element of the first core network; or, The base station sends the second indication information to the first core network element through the third core network element; Wherein, the second indication information is used to indicate at least one of the following: The access technology of the terminal equipment is satellite access; The first connection with the second attribute parameter cannot be established; The first connection with the first attribute parameter has been established. The method of any one of claims 11 to 14, wherein the first connection is an air interface connection. The method according to claim 9 or 13, wherein the first attribute parameter is completely or partially different from the second attribute parameter, which means: The first attribute parameter and the second attribute parameter have different values of at least one of the following parameters: 5G service quality identifier 5QI, packet delay budget PDB, and packet error rate PER. The method according to any one of claims 1 to 16, wherein the first service includes at least one of the following: a voice service and a video service. A connection establishment apparatus, applied to network equipment, the apparatus comprising: The establishment unit is configured to establish a first connection for the first service of the terminal device; wherein, the attribute parameter of the first connection is determined based on the access technology of the terminal device. The apparatus of claim 18, wherein the apparatus further comprises: A determining unit, configured to determine the access technology of the terminal device. The apparatus according to claim 19, wherein the network device is a first core network element; the apparatus further comprises: a receiving unit, configured to receive the first indication information sent by the network element of the second core network; or, receive the first indication information sent by the network element of the second core network through the network element of the third core network; Wherein, the first indication information is used to indicate whether the access technology of the terminal device is satellite access. The apparatus of claim 20, wherein the apparatus further comprises: A sending unit, configured to send a first subscription message to the second core network element or the third core network element, where the first subscription message is used to indicate the second core network element or the third core network element The three-core network element sends the first indication information to the first core network element when it is determined that the access technology of the terminal device is satellite access. The apparatus according to claim 20 or 21, wherein a first message is sent by a base station to the second core network element, and the first message carries first indication information and/or area information of the base station; The first indication information is used to indicate whether the access technology of the terminal device is satellite access; the area information of the base station is used to determine whether the access technology of the terminal device connected to the base station is satellite access . The apparatus of claim 22, wherein the area information of the base station includes a TAC and/or at least one cell identity. The apparatus according to any one of claims 20 to 23, wherein the first indication information is further used to indicate a satellite access type. The apparatus according to any one of claims 20 to 24, wherein the receiving unit is further configured to receive a second message sent by the IMS, where the second message carries a service identifier of the first service, the The second message is used to instruct the first core network element to establish a first connection for the first service. An apparatus according to any one of claims 20 to 25, wherein, If the determining unit determines that the access technology of the terminal device is satellite access, the establishing unit triggers the establishment of the first connection with the first attribute parameter; If the determining unit determines that the access technology of the terminal device is not satellite access, the establishing unit triggers the establishment of the first connection with the second attribute parameter; Wherein, the first attribute parameter is completely or partially different from the second attribute parameter. 26. The apparatus of any one of claims 20 to 26, wherein the first connection is a data plane connection. The apparatus of claim 19, wherein the network device is a base station; The determining unit is configured to determine whether the access technology of the terminal device is satellite access. The apparatus of claim 28, wherein the apparatus further comprises: A receiving unit, configured to receive a first connection establishment request message sent by the first core network element or the third core network element. An apparatus according to claim 28 or 29, wherein, If the determining unit determines that the access technology of the terminal device is satellite access, the establishing unit triggers the establishment of the first connection with the first attribute parameter; If the determining unit determines that the access technology of the terminal device is not satellite access, the establishing unit triggers the establishment of the first connection with the second attribute parameter; Wherein, the first attribute parameter is completely or partially different from the second attribute parameter. The apparatus of claim 30, wherein the apparatus further comprises: a sending unit, configured to send the second indication information to the first core network element; or, send the second indication information to the first core network element through the third core network element; Wherein, the second indication information is used to indicate at least one of the following: The access technology of the terminal equipment is satellite access; The first connection with the second attribute parameter cannot be established; The first connection with the first attribute parameter has been established. 31. The apparatus of any one of claims 28 to 31, wherein the first connection is an air interface connection. The device according to claim 26 or 30, wherein the first attribute parameter is completely or partially different from the second attribute parameter, which means: The first attribute parameter and the second attribute parameter have different values of at least one of the following parameters: 5QI, PDB, and PER. The apparatus according to any one of claims 18 to 33, wherein the first service includes at least one of the following: a voice service and a video service. A network device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and executes any one of claims 1 to 17. Methods. A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 1 to 17. A computer-readable storage medium storing a computer program that causes a computer to perform the method of any one of claims 1 to 17. A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 1 to 17. A computer program that causes a computer to perform the method of any one of claims 1 to 17.

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