WO2011026407A1 - 一种本地网际协议访问连接移动性支持的方法及系统 - Google Patents
一种本地网际协议访问连接移动性支持的方法及系统 Download PDFInfo
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- WO2011026407A1 WO2011026407A1 PCT/CN2010/076395 CN2010076395W WO2011026407A1 WO 2011026407 A1 WO2011026407 A1 WO 2011026407A1 CN 2010076395 W CN2010076395 W CN 2010076395W WO 2011026407 A1 WO2011026407 A1 WO 2011026407A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/087—Mobility data transfer for preserving data network PoA address despite hand-offs
Definitions
- the present invention relates to the field of mobile communications, and in particular, to a method and system for accessing mobility support of a local internet protocol (IP).
- IP internet protocol
- EPS 3rd Generation Partnership Project
- Evolved Packet System Evolved Packet System
- E-UTRAN Evolved Universal Terrestrial Radio Access Network
- MME Mobile Management Unit
- SGW Serving Gateway
- PGW Packet Data Network Gate
- HSS Home Subscriber Server
- P-GW PDN GW
- PDN refers to packet data network, which is represented by Packet Data Network.
- the MME is responsible for the control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management;
- the access gateway includes the SGW and the PGW, and the SGW is the E- The UTRAN-connected access gateway device forwards data between E-UTRAN and PGW and is responsible for buffering paging waiting data;
- PGW is the border gateway of EPS and PDN network, responsible for PDN access and EPS and PDN The function of forwarding data and so on;
- the authentication authorization server includes HSS, 3GPP AAA server;
- the PCRF entity is a policy and charging rule function entity, which is connected to the IP service network through the receiving interface Rx to obtain service information, and further, it passes Gx/Gxa
- the /Gxc interface is connected to the gateway device in the network and is responsible for initiating the IP bearer.
- the establishment guarantees the quality of service (QoS) of the service data, and performs charging control.
- QoS quality of service
- the home base station is a small, low-power base station deployed in indoor places such as homes and offices.
- the main purpose is to provide users with higher service rates and lower the cost of using high-speed services, while making up for existing distributed Insufficient coverage of cellular wireless communication systems.
- the advantages of a home base station are affordability, convenience, low power output, plug and play, and more.
- the home base station can be directly connected to the core network, as shown in FIG. 1.
- the wireless side network element in FIG. 1 can be a home base station; the home base station can also access the core network through the home base station gateway, the logical network element, as shown in the figure. 2 or as shown in FIG. 3, here, the radio side network element in FIG. 2 or FIG. 3 may be a home base station.
- the main functions of the home base station gateway are: verifying the security of the home base station, handling the registration of the home base station, performing operation and maintenance management on the home base station, configuring and controlling the home base station according to the operator's requirements, and exchanging data of the core network and the home base station.
- FIG. 1 FIG. 2 or FIG.
- the access gateway of the core network may be an SGW, a PGW, a Serving GPRS Support Node (SGSN), and a Gateway GPRS Support Node (GGSN), where GPRS refers to the general wireless packet service.
- the local gateway may be a local SGW (L-SGW, Local SGW), a local PGW (L-PGW, Local PGW), a virtual SGW (V-SGW, Virtual SGW), a virtual PGW (V-PGW, Virtual PSGW), a local GGSN. (L-GGSN, Local GGSN), an external local gateway (L-GW, Local GW), or a data offload function entity.
- the local gateway can be set up with the wireless side network element, or can be set up with the home base station gateway, or can be set near the wireless side network element or the home base station gateway, that is, the external mode.
- the local gateway In order to implement the local IP access function, that is, the local access to the other IP devices of the home network or the Internet is added to the local gateway, as shown in FIG. 1, FIG. 2, FIG. 3, or FIG.
- the addition of the local gateway can provide strong support for the local IP access technology.
- the local gateway can be set up with the wireless side network element, or set in the vicinity of the wireless side network element in an external manner; The gateway is set up, or is set to be in the vicinity of the home base station gateway.
- the data flow path for local IP access and traditional core network IP access in the mobile communication network architecture is shown.
- a traditional core IP access data path and a local IP access data path can be established.
- the local IP access data path is: from the terminal to the wireless side network element and/or the home base station gateway, to the local gateway, such as L-SGW or L-PGW, data transmission Not through the core network.
- L-SGW or L-PGW local gateway
- the first local IP access data path directly accesses the Internet, namely: Internet local IP access connection.
- the second local IP access data path directly accesses other IP devices on the home network, namely: Home network local IP access connection.
- the operator requires the network to be able to provide business continuity.
- the user's connection is required to be mobile, that is, when the connection is mobile, the network can provide business continuity.
- the network can provide business continuity.
- the main object of the present invention is to provide a method and system for local IP access connection mobility support, which can support the mobility of a local IP access connection.
- a method for local network protocol access connection mobility support comprising: a new wireless side network element/new home base station gateway determining whether a local internet protocol (IP) connection has mobility; according to the judgment result, supporting a local IP access connection Corresponding mobility processing;
- IP internet protocol
- the determining includes: performing the determining by comparing the network element information delivered by the new radio side network element/new home base station gateway or the home base station management system (HMS) with the obtained network element information.
- HMS home base station management system
- the obtained network element information includes: a new wireless side network element/new home base station gateway moving from The dynamic management entity or the network element information obtained from the original wireless side network element.
- the network element information that is configured by the new wireless side network element/new home base station gateway or the HMS is: the network element information that the new wireless side network element/new home base station gateway can currently connect to;
- the information includes: a local gateway/new wireless side network element/new home base station gateway capable of connecting local gateway/radio side network element/home base station gateway identification information;
- the network element information obtained from the mobility management entity/original radio side network element includes: original local gateway/original radio side network element/original home base station gateway identification information of the local IP connection, and an optional local IP access connection. Instructions.
- the new wireless side network element/new home base station gateway receives the message from the mobility management entity, and parses the original local gateway/original wireless side network element/original home of the local IP connection carried in the message. After the identification information of the base station gateway or the indication information of the local IP access connection, it is explicitly determined whether the local IP access connection has mobility determination;
- the original local gateway/original wireless connection with the local IP by using the identification information of the local gateway/radio side network element/home base station gateway to which the new local gateway/new wireless side network element/new home base station gateway can connect
- the identification information of the side network element/original home base station gateway is compared to determine whether there is a new wireless side network element/new home base station gateway, and the original local gateway/original wireless side network element/original home base station gateway connected to the local IP exists. Interface, and complete the judgment of whether the local IP access connection has mobility.
- the mobility processing is an activation process; and the activation process includes: the mobility management entity activates a local IP access connection.
- the mobility processing is a release processing; the release processing includes: the new wireless side network element/new home base station gateway instructing the mobility management entity to release the current local IP access connection.
- the method further includes: the original mobile The sexual management entity transmits the identification information of the original local gateway/original radio side network element of the local IP access connection and the indication information of the optional local IP access connection to the new mobility management entity.
- the method further includes: the new wireless side network element transmitting the identification information of the new local gateway/new wireless side network element/new home base station gateway to the new mobility management entity.
- the identifier information of the new local gateway/original local gateway includes: address information of the new local gateway/original gateway, or dedicated identifier information for identifying a new local gateway/original local gateway identity;
- the identifier information of the new radio side network element/original radio side network element includes: address information of the new radio side network element/original radio side network element, or used to identify the new radio side network element/original radio side network element identity Dedicated identification information;
- the identification information of the local gateway/radio side network element/home base station gateway that the new local gateway/new wireless side network element/new home base station gateway can connect includes: address information of the local gateway/radio side network element/home base station gateway Or special identification information used to identify the local gateway/wireless side network element/home base station gateway identity.
- the new radio side network element/original radio side network element includes: a base station, a home base station, or a radio network controller RNC.
- the new mobility management entity/original mobility management entity includes: a mobility management unit (MME), a mobile switching center (MSC), and a serving universal wireless packet service support node (SGSN).
- MME mobility management unit
- MSC mobile switching center
- SGSN serving universal wireless packet service support node
- the new local gateway/original local gateway includes: a local service gateway (L-SGW), a local packet data network gateway (L-PGW), a local gateway general wireless packet service support node (L-GGSN), or an external device. Local gateway (L-GW), or data offloading functional entity;
- L-SGW local service gateway
- L-PGW local packet data network gateway
- L-GGSN local gateway general wireless packet service support node
- L-GW data offloading functional entity
- the access gateway of the core network includes: a Serving Gateway (SGW), or an SGSN.
- SGW Serving Gateway
- SGSN Serving Gateway
- a local internet protocol access connection mobility support system comprising: a judging unit and a mobility processing unit; wherein a judging unit, configured to determine whether the local IP connection has mobility by the new radio side network element/new home base station gateway, where the determining includes: configuring the new radio side network element/new home base station gateway or the HMS The network element information is compared with the obtained network element information to implement the determining;
- the mobility processing unit is configured to support corresponding mobility processing on the local IP access connection according to the determination result.
- the obtained network element information includes: network element information obtained by the new wireless side network element/new home base station gateway from the mobility management entity or the original wireless side network element.
- the determining unit is further configured to: the new radio side network element/new home base station gateway receives a message from the mobility management entity/original radio side network element, and parses the After the local IP gateway connects to the original local gateway/original radio side network element/original home base station gateway identification information, and the optional local IP access connection indication information, it is explicitly determined whether the local IP access connection has mobility determination;
- the identification information of the wireless side network element/the original home base station gateway is compared to determine the new wireless side network element/new home base station gateway, and the original local gateway/original wireless side network element/original home base station gateway connected to the local IP access Whether there is an interface and whether the local IP access connection has a mobility judgment.
- the mobility processing unit is further configured to perform an activation process when determining that the local IP access connection has mobility; wherein the activation process comprises: the mobility management entity activating a local IP access connection.
- the mobility processing unit is further configured to: when it is determined that the local IP access connection does not have mobility, perform a release process, where the release process includes: the new wireless side network element/new home base station gateway indicates mobility
- the management entity releases the current local IP access connection.
- the new wireless side network element/new home base station gateway of the present invention determines whether the local IP connection has mobility; according to the judgment result, the corresponding mobility processing for the local IP access connection is supported; wherein, by the new wireless side network Meta/new home base station gateway configuration or home base station management system
- the network element information delivered by the HMS (HNB Management System) is compared with the obtained network element information to implement the judgment.
- support for the mobility of the local IP access connection is achieved by judging whether the local IP connection is mobile and performing corresponding mobility processing based on the judgment result.
- 1 is a schematic diagram of a connection of an existing mobile communication network
- 3 is another connection diagram of an existing mobile communication network
- FIG. 4 is a schematic diagram of a local IP access data flow in an existing mobile communication system
- FIG. 5 is a schematic diagram of a local IP access data flow after a terminal moves in a mobile communication system after adopting the present invention
- FIG. 6 is a flowchart of activation of a local IP connection in a service request process in an LTE system according to the present invention
- FIG. 7 is a flow chart of activation of a local IP connection in a service request process in a UTRAN system according to the present invention
- FIG. 8 is a flow chart of activation of a local IP connection in a tracking area update process in an LTE system according to the present invention.
- FIG. 9 is a flow chart showing activation of a local IP connection in a routing area update process in the UTRAN system of the present invention.
- FIG. 10 is a flowchart of local IP connection activation in a handover process according to the present invention
- FIG. 11 is a flowchart of local IP connection activation in a handover process in a UTRAN system according to the present invention
- FIG. 12 is a schematic diagram of a terminal performing X2 handover in an LTE system according to the present invention
- the new radio side network element/new home base station gateway judges whether the local IP connection has mobility; according to the judgment result, the corresponding mobility processing for the local IP access connection is supported. The judgment is implemented by comparing the network element information of the new radio side network element/new home base station gateway or the network element information sent by the HMS with the obtained network element information.
- the data flow path of the local IP access and the traditional core network IP access after the terminal moves in the mobile communication network architecture is shown. Due to the particularity of the local IP access connection, that is, the data stream is directly transmitted from the wireless side network element and/or the home base station gateway. Therefore, after the terminal moves, the data flow accessed by the local IP needs to pass through the new wireless side network element and/or Home base station gateway, and the original local gateway.
- the original local gateway is located in the vicinity of the original wireless side network element/home base station gateway, and it can be seen that whether the local IP access connection has mobility depends on the new wireless side network element and/or the home base station gateway, and the original local gateway. Is there an interface between the two? However, in the current prior art, there is no solution for judging whether or not there is an interface relationship between the two. Therefore, the prior art cannot implement the mobility of the local IP access connection.
- the present invention provides an implementation scheme of local IP access connection mobility support to implement mobility of a local IP access connection.
- the new wireless side network element/home base station gateway according to the original local gateway identification information of the local IP connection provided by the new mobility management entity or the original wireless side network element/home
- the identification information of the base station gateway determines whether there is an interface between the new wireless side network element and/or the home base station gateway, the original local gateway identification information connected to the local IP, or the original wireless side network element/home base station gateway, and according to the judgment result, Mobility processing for corresponding activation or release of local IP access connections.
- Step 101 A new radio side network element/home base station gateway determines whether the local IP connection has mobility.
- the determination of whether the local IP connection has mobility includes: a network obtained by configuring the new radio side network element/new home base station gateway or the network element information sent by the HMS, and the network obtained by the new radio side network element/home base station gateway.
- the meta-information is compared to determine whether the local IP access connection has mobility.
- the new wireless side network element/new home base station gateway may obtain network element information from the mobility management entity or from the original wireless side network element.
- Step 102 Support corresponding mobility processing of the local IP access connection according to the judgment result.
- the mobility process includes activation or release.
- the judgment result is different, and the corresponding mobility processing performed may be an activation or release process.
- the new radio side network element/new home base station gateway configuration or the network element information delivered by the HMS is specifically: the new radio side network element / the new home base station gateway current Network element information that can be connected.
- the network element information currently connected by the new wireless side network element/new home base station gateway specifically includes: a local gateway/new wireless side network element/new home base station gateway capable of connecting local gateway/radio side network element/home base station The identification information of the gateway.
- the network element information obtained by the new radio side network element/new home base station gateway from the mobility management entity specifically includes: the original local gateway/original radio side network element/original home base station gateway identification information of the local IP connection, and may also include the local IP address. Instructions for accessing the connection.
- the original local identification information/original wireless side network element identification information/original home base station gateway identification information refers to the original local identification information when the local IP access connection is established/the original wireless side network element identification information/the original home base station gateway identifier information.
- Step 201 The new radio side network element/new home base station gateway receives the message from the mobility management entity, and parses the identifier of the original local gateway/original radio side network element/original home base station gateway of the local IP connection carried in the message. After the information, or the local IP access connection indication, it is clear that the local IP access connection needs to be judged whether it is mobile.
- Step 202 The original local gateway/original wireless side connected to the local IP by the identification information of the local gateway/radio-side network element/home base station gateway that can be connected by the new local gateway/new wireless side network element/new home base station gateway.
- the identification information of the network element/original home base station gateway is compared to determine whether there is an interface between the new local side network element/new home base station gateway and the original local gateway/original wireless side network element/original home base station gateway connected to the local IP address. And complete the judgment of whether the local IP access connection has mobility.
- the new wireless side network element/new home base station gateway when the new wireless side network element/new home base station gateway is determined, the original local gateway/original wireless side network element/original home base station gateway connected to the local IP is determined. Whether there is an interface between them, that is, the judgment result is specifically:
- the currently performed mobility processing is specifically an activation process.
- the activation includes: The mobility management entity activates the local IP access connection.
- the new wireless side network element/new home base station gateway is determined, whether there is an interface between the original local gateway/original wireless side network element/original home base station gateway connected to the local IP, that is, the judgment result is specifically: local IP
- the currently performed mobility processing is specifically a release process.
- the release process specifically includes: The new wireless side network element/new home base station gateway instructs the mobility management entity to release the current local IP access connection.
- the method further includes: the original mobility management entity accesses the identity information of the original local gateway/original radio side network element of the connection by the local IP, and may also include an indication of the local IP access connection. Information is passed to the new mobility management entity.
- the method further includes: the new wireless side network element transmitting the identification information of the new local gateway/new wireless side network element/new home base station gateway to the new Mobility management entity.
- the following describes the identification information of each network element entity and each network element entity.
- the identification information of the new local gateway/original local gateway specifically includes: address information of the new local gateway/original gateway, or dedicated identification information for identifying the identity of the new local gateway/original local gateway.
- the identifier information of the new radio side network element/original radio side network element includes: address information of the new radio side network element/original radio side network element, or used to identify the new radio side network element/original radio side network element identity Dedicated identification information.
- the identification information of the local gateway/radio side network element/home base station gateway that the new local gateway/new wireless side network element/new home base station gateway can connect includes: local address/radio side network element/home base station gateway address Information, or dedicated identification information used to identify the local gateway/wireless side network element/home base station gateway identity.
- the new radio side network element/original radio side network element specifically includes: a base station, a home base station, or a Radio Network Controller (RNC).
- RNC Radio Network Controller
- the new mobility management entity/original mobility management entity specifically includes: an MME, a Mobile Switching Centre (MSC), and an SGSN.
- MME Mobile Management Entity
- MSC Mobile Switching Centre
- the new local gateway/original local gateway specifically includes: L-SGW, L-PGW, L-GGSN, external L-GW, or data offload function entity.
- the access gateway of the core network specifically includes: an SGW or an SGSN.
- the new wireless side network element/home base station gateway is expressed as follows:
- the wireless side network element and the home base station gateway are all new, and the following is not described; similarly, for example, The following descriptions of the original wireless side network element/home base station gateway refer to:
- the wireless side network element and the home base station gateway are all original. In short, the following descriptions about new or original are similar to the meaning here, and are not mentioned below.
- the mobility management entity is not always new. There is also an original mobility management entity that sends information to the new base station.
- the invention mainly includes the following contents:
- the new wireless side network element/home base station gateway determines the new wireless side network element according to the original local gateway identification information from the new mobility management entity or the identification information of the original wireless side network element/home base station gateway and the indication information of the local IP access connection. Whether there is an interface between the home base station gateway and the original local gateway or the original wireless side network element/home base station gateway, that is, whether the local IP access connection has mobility.
- the new wireless side network element/home base station gateway determines the new wireless side network element/home base station gateway and the original local area according to the local gateway or the wireless side network element/home base station gateway information that the new wireless side network element/home base station gateway can connect to. Whether there is an interface between the gateway or the original wireless side network element/home base station gateway, that is: whether the local IP access connection has mobility.
- the new mobility management entity activates the local IP access connection; when the local IP access connection does not have mobility, the new wireless side network element/home base station gateway instructs the new mobility management entity to release This local IP access connection.
- the original mobility management entity forwards the original local gateway identification information of the local IP access connection or the original wireless side network element identification information, and the indication information of the local IP access connection to the new mobility management entity.
- the new radio side network element transmits the identification information of the local gateway/radio side network element/home base station gateway to the mobility management entity.
- the identifier information of the local gateway may be an address of the local gateway or a dedicated identification information.
- the identifier information of the wireless side network element may be an address of the wireless side network element or a specific identification information.
- the wireless side entity may be a base station, a home base station, or an RNC.
- the mobility management entity may be an MME, an MSC, or an SGSN.
- the local gateway may be an L-SGW, an L-PGW, an L-GGSN, an external L-GW, and a data offloading functional entity.
- the core network access gateway may be an S-GW or an SGSN.
- the L-SGW and the L-PGW do not exist.
- the MME performs message interaction with the L-GW or the data offload function entity, and no L-SGW or L-PGW participates.
- the L-GGSN does not exist.
- the SGSN performs message interaction with the L-GW or the data offloading function entity, and no L-GGSN participates.
- the invention is illustrated by way of example below.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- FIG. 6 is a schematic diagram of the system architecture of FIG. 1, FIG. 2 or FIG. 3, the local gateway is an L-PGW, an L-SGW, an L-GW, and a data offloading functional entity scenario, where the terminal is idle in the LTE system.
- the local local service gateway of the local IP connection is an L-SGW
- the original local access gateway is an L-PGW, an L-GW, and a data offloading function entity.
- the mobility management entity When the terminal is idle, the mobility management entity needs to save the local gateway of the local IP connection, such as the L-PGW, the L-SGW, the external L-GW, or the identification information of the data offloading function entity, and can save the wireless IP network of the local IP connection.
- Meta identification message The identifier information of the L-PGW, the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 401 After the terminal accesses the wireless communication system, the terminal has a local IP access connection, and then the terminal enters an idle state.
- Step 402 The terminal sends a service request message to the mobility management entity via the new radio side network element.
- the message sent by the radio side network element to the mobility management entity may carry the identification information of the new radio side network element, and may carry the identification information of the new local gateway, such as the L-PGW and the L-SGW.
- the local gateway adopts an external L-GW or a data offloading function entity, it needs to carry the identification information of the L-GW or the data offloading function entity.
- the identifier information of the L-PGW, the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the mobility management entity can be an MME.
- Step 403 Perform an authentication and authentication process of a non-access stratum (NAS, Non-Access-Stratum), and the step is optional.
- NAS Non-Access-Stratum
- Step 404 The mobility management entity sends an initial context setup request message to the new radio side network element.
- the message needs to carry the original L-SGW identification information of the local IP access connection; or the original wireless side network element identification information carrying the local IP access connection; or when the local gateway adopts an external L-GW or a data offloading function entity At the same time, it is required to carry the identification information of the original L-GW or the original data offloading function entity of the local IP access connection. At the same time, it can also carry the indication information of the local IP access connection to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the mobility management entity may not carry the above information in the sent message.
- Step 405 The new radio side network element receives the message. If the message carries the indication information of the local IP access connection, it is determined according to the parameter carried in the message whether the local IP connection can be reactivated after the terminal moves, that is: whether there is a mobile Sex. If the message does not carry the indication information of the local IP access connection, the information may be determined according to whether the original L-SGW identification information or the original radio side network element identification information or the original L-GW identification information or the identification information of the original data distribution function entity is carried. Whether to make the judgment described in this step. Otherwise continue the normal business request process in the prior art.
- the new radio side network element determines the new radio side network element according to the L-SGW information that can be connected and the original L-SGW identification information. Whether there is an interface between the original L-SGWs.
- the L-SGW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS. If the message carries the original wireless side network element identification information of the local IP access connection, the new wireless side network element determines the new wireless side network element according to the wireless side network element information that can be connected and the identification information of the original wireless side network element.
- the information of the radio side network element that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new radio side network element determines the new radio side network element and the original L according to the L-GW information that can be connected and the original L-GW identification information. - Whether there is an interface between the GWs.
- the L-GW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the data distribution function entity information and the identification information of the original data distribution function entity that can be connected. Whether there is an interface with the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to be mobile.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 406a According to the judgment result of step 405, if the local IP access connection has mobility, the new radio side network element needs to initiate a radio side bearer establishment procedure of the local IP access connection.
- the radio side bearer establishment procedure of the core network connection needs to be initiated regardless of whether or not the mobility is available. That is, whether it is mobile or not The normal activation process of the core network connection.
- the new radio side network element performs a radio bearer setup process.
- Step 407a The radio side network element responds to the mobility management entity initial context setup complete message.
- Step 408a The mobility management entity initiates a bearer modification process to the original L-SGW.
- the original L-SGW and the original L-PGW may carry out the bearer modification process.
- Step 406b According to the judgment result of step 405, if the local IP access connection does not have mobility, the mobility management entity needs to initiate a local IP access connection release procedure. If the user has a core network connection at the same time, the wireless side bearer establishment process of the core network connection needs to be initiated regardless of mobility. That is, whether it is mobile or not, it does not affect the normal activation process of the core network connection.
- the new radio side network element responds to the mobility management entity with an initial context setup complete message or an initial context setup failure message. If the user only has a local IP access connection, it needs to respond to the initial context establishment failure message, carrying a specific cause value, indicating that the local IP access connection cannot be established. If the user has a core network connection at the same time, after the radio side bearer is established for the core network connection, the initial context setup complete message or the initial context setup failure message is responded to according to the radio bearer setup situation, and the message needs to carry a specific cause value. , indicating that a local IP access connection could not be established.
- Step 407b The mobility management entity initiates a session release process to the original L-SGW.
- Step 408b The original L-SGW performs a session release process with the original L-PGW.
- the local IP access connection is released as an example.
- the local IP access connection can also be converted to the core network connection. This process is the same as the prior art. No longer detailed.
- Embodiment 2 After the downlink data triggers the network to initiate paging to the idle state user, the user initiates a service request procedure to activate the connection. At this time, whether the local IP access connection is activated is the same as the process of FIG. 4, and details are not described herein.
- Embodiment 2 is the same as the process of FIG. 4, and details are not described herein.
- the local gateway is an L-GGSN, an L-GW, and a data offloading functional entity scenario.
- Radio Access Network A flowchart of a service request process when a terminal transitions from an idle state to a connected state.
- the original local access gateway is an L-GGSN, an L-GW, and a data offloading functional entity. The specific steps in this embodiment are described as follows:
- the mobility management entity When the terminal is idle, the mobility management entity needs to save the local gateway of the local IP connection, such as the identification information of the L-GGSN, the external L-GW, and the data offloading function entity, and can store the identification information of the radio side network element of the local IP connection.
- the identifier information of the L-GGSN, the L-GW, the data offloading function entity, and the radio side network element may be address information or a specific identifier.
- Step 501 After the terminal accesses the wireless communication system, the terminal has a local IP access connection, and then the terminal enters an idle state.
- Step 502 The terminal sends a service request message to the mobility management entity via the new radio side network element.
- the message sent by the new radio side network element to the mobility management entity may carry the new radio side network element identification information, and may carry the new local gateway, such as the identification information of the L-GGSN.
- the local gateway adopts an external L-GW or a data offloading function entity, it needs to carry the identification information of the L-GW or the data offloading function entity.
- the identifier information of the L-GGSN, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the mobility management entity is the SGSN.
- Step 503 Perform an authentication process of the NAS, and the step is optional.
- Step 504 The mobility management entity sends a radio access bearer allocation request message to the new radio side network element.
- the message needs to carry the original L-GGSN identification information of the local IP access connection; or the original wireless side network element identification information carrying the local IP access connection; or when the local gateway uses the external L-GW or the data offloading function entity In the mode, the original L-GW that needs to carry the local IP access connection Or the identification information of the data offloading function entity.
- the local IP access connection indication information may be carried to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-GGSN, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the mobility management entity may not carry the above information in the sent message.
- Step 505 The new radio side network element receives the message. If the message carries the indication information of the local IP access connection, it is determined according to the parameter carried in the message whether the local IP connection can be reactivated after the terminal moves, that is, whether the mobility is available. . If the message does not carry the indication information of the local IP access connection, the information may be determined according to whether the original L-GGSN identification information or the original radio side network element identification information or the original L-GW identification information or the identification information of the original data distribution function entity is carried. Whether to make the judgment described in this step. Otherwise continue the normal business request process in the prior art.
- the message carries the original L-GGSN identification information of the local IP access connection
- the original radio side network element identification information is not carried, and the new radio side network element is based on the L-GGSN information that can be connected and the original L-GGSN identifier.
- the information is used to determine whether an interface exists between the new radio side network element and the original L-GGSN.
- the L-GGSN information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new radio side network element If the message carries the original L-GW identification information of the local IP access connection, and does not carry the original radio side network element identification information, the new radio side network element according to the L-GW information that can be connected and the original L-GW identification information, Determine whether there is an interface between the new wireless side network element and the original L-GW.
- the L-GW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new wireless side network element If the message carries the original data offloading function entity identification information of the local IP access connection, the new wireless side network element according to the data shunting functional entity information and the original data shunting function that can be connected The identifier information of the entity determines whether an interface exists between the new wireless side network element and the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new wireless side network element can also determine the new wireless side network according to the wireless side network element information that can be connected and the identification information of the original wireless side network element. Whether there is an interface between the element and the original wireless side network element.
- the information of the wireless side network element that can be connected to the new wireless side network element can be locally configured on the wireless side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to be mobile.
- the identification information of the L-GGSN, the L-GW, the data offloading function entity, and the radio side network element may be address information or a specific identifier.
- Step 506a According to the judgment result of step 505, if the local IP access connection has mobility, the new radio side network element needs to initiate a radio side bearer establishment procedure of the local IP access connection.
- the radio side bearer establishment procedure for initiating the core network connection is required regardless of whether or not the mobility is available. That is, whether it is mobile or not, it does not affect the normal activation process of the core network connection.
- the new radio side network element performs a radio bearer setup process.
- Step 507a The radio side network element responds to the mobility management entity radio access bearer allocation response message.
- Step 508a The mobility management entity may initiate a Packet Data Protocol (PDP) context 4 tampering procedure to the terminal.
- PDP Packet Data Protocol
- Step 509a The mobility management entity may initiate a PDP context modification flow to the original L-GGSN. Cheng.
- Step 506b according to the judgment result of step 505, if the local IP access connection does not have mobility, the mobility management entity needs to initiate a local IP access connection release procedure. If the user has a core network connection at the same time, the wireless side bearer establishment process of the core network connection needs to be initiated regardless of mobility. That is, whether it is mobile or not, it does not affect the normal activation process of the core network connection.
- the new radio side network element responds to the mobility management entity with a radio access bearer allocation response message or a radio access bearer allocation failure message. If the user only has a local IP access connection, it needs to respond to the radio access bearer allocation failure message, carrying a specific cause value, indicating that the local IP access connection cannot be established. If the core network connection exists at the same time, after the radio network bearer is established for the core network connection, the radio bearer allocation response message or the radio access bearer allocation failure message is responded according to the radio bearer establishment situation, and the message needs to carry a specific The cause value indicates that a local IP access connection could not be established.
- Step 507b The mobility management entity initiates a PDP context deletion process to the original L-GGSN.
- Step 508a The mobility management entity may initiate a PDP context deactivation process to the terminal.
- the local IP access connection is not mobile, in this embodiment, the local IP access connection is released as an example. In this case, the local IP access connection can also be converted into a core network connection. This process is similar to the prior art. No longer detailed.
- the user After the downlink data triggers the network to initiate paging to the idle user, the user initiates a service request procedure to activate the connection. At this time, whether the local IP access connection is activated is the same as the process of Figure 7, and will not be described in detail here.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the local gateway is an L-PGW, an L-SGW, an L-GW, and a data offloading functional entity scenario, where the terminal is in an idle state in the LTE system.
- the local IP connection The original local service gateway is the L-SGW, and the original local access gateway is the L-PGW, the L-GW, and the data offloading function entity.
- the mobility management entity When the terminal is idle, the mobility management entity needs to save the local gateway of the local IP connection, such as the L-PGW, the L-SGW, the external L-GW, and the identification information of the data offloading function entity, and can save the wireless side network element of the local IP connection.
- Identification information The identifier information of the L-PGW, the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 601 After the terminal accesses the wireless communication system, the terminal has a local IP access connection, and then the terminal enters an idle state.
- Step 602 The terminal in the idle state periodically initiates or changes the tracking area list due to the movement to initiate the tracking area update process.
- the terminal sends a NAS message, that is, the tracking area update request to the wireless side network element currently serving the terminal.
- the wireless side network element may be different from the wireless side network element before the terminal enters the idle state.
- the terminal sends the tracking area update request to the wireless side network element that is currently serving the terminal, where the wireless side network element is collectively referred to as the new wireless side network element; the terminal enters the wireless side network element before the idle state, where the wireless side network element They are collectively referred to as the original wireless side network element, and are not described below.
- the wireless side network element selects the current mobility management entity for the user, that is, collectively referred to as a new mobility management entity, and includes the tracking area update request in the initial user message/up and down message transmission message and sends it to the new mobility management entity. .
- the message sent by the wireless side network element to the mobility management entity may carry the new wireless side network element identification information, and may carry the identification information of the new local gateway, such as the L-PGW and the L-SGW.
- the local gateway uses the external L-GW or the data offloading function entity, it needs to carry the identifier information of the L-GW or the data offloading function entity.
- the identifier information of the L-PGW, the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the mobility management entity is the MME, and the new mobility management entity and the mobility management entity before the terminal enters the idle state, that is, may be the same as the original mobility management entity. Step 603: When the new mobility management entity is different from the original mobility management entity, the new mobility management entity initiates an upper and lower user acquisition process to the old mobility management entity.
- Step 604 The original mobility management entity includes the context information of the user in the context response message and sends the context information to the new mobility management entity.
- the message needs to carry the original L-SGW identification information of the local IP access connection; or the original wireless side network element identification information carrying the local IP access connection; or when the local gateway adopts an external L-
- the GW or the data offloading function entity is in a manner, it needs to carry the identification information of the original L-GW or the original data offloading function entity of the local IP access connection.
- it can also carry the indication information of the local IP access connection, to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offloading function entity, and the radio side network element may be address information or a specific identifier.
- Step 605 The new mobility management entity may initiate an authentication and authentication process for the user.
- Step 606 The new mobility management entity saves the information carried in step 604 and responds to the original mobility management entity with a context confirmation message.
- Step 607 The new mobility management entity selects the original L-SGW for the local IP access connection, and initiates a bearer update process to the original L-SGW.
- the original L-SGW may initiate a loading update process to the original L-PGW.
- the new mobility management entity When the user has a core network connection, the new mobility management entity also needs to initiate a session establishment or bearer update procedure for the core network connection.
- Step 608 The new mobility management entity initiates a location update process to the authentication authority server.
- Step 609 The authentication authorization server initiates a location deletion process to the original mobility management entity.
- the original mobility management entity may initiate a session deletion process for the core network connection.
- Step 610 When the routing area update request sent by the terminal does not carry the activation flag, and the new mobility management entity decides not to activate the user's bearer, the new mobility management entity sends the routing area update to the terminal, and then directly performs step 615. , step 616. At this point the local IP access connection is If the service request is to be activated, the process is performed according to the process of FIG. 6.
- the mobility management entity moves to the new wireless.
- the side network element sends an initial context setup request message and simultaneously sends a routing area update accept message. The message needs to carry the original IP access connection.
- the L-SGW identification information or the original radio side network element identification information carrying the local IP access connection; or when the local gateway uses the external L-GW or the data offloading function entity, the original L needs to carry the local IP access connection - GW or identification information of the original data offload function entity.
- the indication information of the local IP access connection may be carried to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the wireless side network element does not change, that is, the new wireless side network element is the same as the original wireless side network element, and the mobility management entity may not carry the above information in the sent message.
- Step 611 The new radio side network element receives the message. If the message carries the indication information of the local IP access connection, it is determined according to the parameter carried in the message whether the local IP connection can be reactivated after the terminal moves, that is, whether the mobility is available. . If the message does not carry the indication information of the local IP access connection, the information may be determined according to whether the original L-SGW identification information or the original radio side network element identification information or the original L-GW identification information or the identification information of the original data distribution function entity is carried. Whether to make the judgment described in this step. Otherwise, the normal routing area update request process in the prior art is continued.
- the new radio side network element determines the new radio side network element and the original L according to the L-SGW information that can be connected and the original L-SGW identification information. - Whether there is an interface between the SGWs.
- the L-SGW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS. If the message carries the original wireless side network element identification information of the local IP access connection, the new wireless side network element determines the new wireless side network element according to the wireless side network element information that can be connected and the identification information of the original wireless side network element.
- the information of the radio side network element that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new radio side network element determines the new radio side network element and the original L according to the L-GW information that can be connected and the original L-GW identification information. - Whether there is an interface between the GWs.
- the L-GW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the data distribution function entity information and the identification information of the original data distribution function entity that can be connected. Whether there is an interface with the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to be mobile.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Steps 612a-614a are the same as steps 406a-408a.
- Steps 612b-614b are the same as steps 406b-408b.
- Steps 615, 616 the new radio side network element forwards the new mobility management entity to send the routing area update accept message to the terminal.
- the terminal may respond to the routing area update complete message.
- the local IP access connection is not mobile, in this embodiment, the local IP access connection is released as an example. In this case, the local IP access connection can also be converted into a core network connection. This process is similar to the prior art. No longer detailed.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- FIG. 9 is a schematic diagram of the system in FIG. 1, FIG. 2 or FIG. 3, the local gateway is an L-GGSN, an L-GW, and a data offloading functional entity scenario, and the terminal in the UTRAN system is changed from an idle state to a connected state.
- the original local access gateway of the local IP connection is an L-GGSN, an L-GW, and a data offloading functional entity.
- the specific steps in this embodiment are as follows:
- the mobility management entity needs to save the local gateway of the local IP connection, such as
- the identification information of the L-GGSN, the external L-GW, and the data offloading function entity can store the identification information of the radio side network element of the local IP connection.
- the identifier information of the L-GGSN, the L-GW, the data offloading function entity, and the radio side network element may be address information or a specific identifier.
- Step 701 After the terminal accesses the wireless communication system, the terminal has a local IP access connection, and then the terminal enters an idle state.
- Step 702 The terminal in the idle state initiates the routing area update process periodically or because the routing area changes due to the movement.
- the terminal sends a NAS message, that is, the routing area update requests the new radio side network element.
- the wireless side network element may be different from the original wireless side network element.
- the wireless side network element selects a new mobility management entity currently served by the user, and sends the information according to the area update request to the new mobility management entity in the initial user message/direct transmission message.
- the message sent by the radio side network element to the mobility management entity may carry the new radio side network element identification information, and may carry the new local gateway, such as the L-GGSN identification information.
- the local gateway adopts the external L-GW or the data offloading function entity, it needs to carry the identification information of the L-GW or the data offloading function entity.
- the identifier information of the L-GGSN, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Mobility management entity is SGSN, new move The active management entity may be the same as the original mobility management entity.
- Step 703 When the new mobility management entity is different from the original mobility management entity, the new mobility management entity initiates an upper and lower user acquisition process to the original mobility management entity.
- Step 704 The original mobility management entity includes the context information of the user in the context response message and sends the context information to the new mobility management entity.
- the message needs to carry the original L-GGSN identification information of the local IP access connection; or the original wireless side network element identification information carrying the local IP access connection; or when the local gateway adopts an external L-
- the GW or the data offloading function entity is in a manner, it needs to carry the identification information of the original L-GW or the original data offloading function entity of the local IP access connection.
- it can also carry the indication information of the local IP access connection, to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-GGSN, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- the new mobility management entity saves the information passed by the original mobility management entity. At this time, whether the local IP access connection is activated or not is processed according to the process of Figure 7 when the service is requested.
- Step 705 Continue the existing process of updating the existing routing area.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- the local access gateway is an L-PGW, an L-SGW, an L-GW, and a data offloading functional entity scenario.
- the original local service gateway of the local IP connection is the L-SGW
- the original local access gateway is the L-PGW, the L-GW, and the data offloading function entity.
- Step 801 The terminal periodically detects the radio signal of the local cell and other neighboring cells, and reports the radio signal to the original radio side network element in the form of a measurement report.
- the original radio side network element finds that the cell signal accessed by the terminal is lower than the threshold and cannot provide a connection for the user, then a new radio side network element with a suitable signal strength is selected to initiate the handover process.
- Step 802 The original radio side network element sends a handover request message to the mobility management entity, where the message may carry information of the new radio side network element.
- the information of the new radio side network element includes, but is not limited to, the network element identifier, the closed user group identifier to which the network element belongs, and the like.
- the mobility management entity is an MME.
- the mobility management entity may change.
- the mobility management entity that is the terminal service after handover is collectively referred to as the new mobility management entity, and the mobility management entity that is the terminal service before the handover is collectively referred to as the original mobility management entity.
- the new mobility management entity is the original mobility management entity.
- the mobility management entity does not change.
- the process is similar to this embodiment, except that the original mobile new management entity needs to forward the handover request to the new mobility management entity.
- the message includes the original L-SGW identification information of the local IP access connection, the original L-GW identification information, the original data distribution function entity identification information, or the original wireless side network element identification information of the local IP access connection;
- the indication of the access connection is used to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- Step 803 The mobility management entity sends a handover request message to the new radio side network element, where the message needs to carry the original L-SGW identification information of the local IP access connection, or the original radio side network element identification information that carries the local IP access connection; or
- the local gateway adopts an external L-GW or a data offloading function entity, it needs to carry the identification information of the original L-GW or the data offloading function entity of the local IP access connection.
- it can also carry the indication information of the local IP access connection, to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 804 The new radio side network element receives the message. If the message carries the indication information of the local IP access connection, it is determined according to the parameter carried in the message whether the local IP connection can be reactivated after the terminal moves, that is, whether the mobility is available. . If the message does not carry the indication information of the local IP access connection, the information may be carried according to the original L-SGW identification information or the original wireless side network element identification information. The identification information of the original L-GW or the identification information of the original data offload function entity determines whether to perform the determination described in this step. Otherwise, the normal switching process in the prior art is continued.
- the new radio side network element determines the new radio side network element and the original L according to the L-SGW information that can be connected and the original L-SGW identification information. - Whether there is an interface between the SGWs.
- the L-SGW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the wireless side network element information that can be connected and the identification information of the original wireless side network element. Whether there is an interface with the original wireless side network element.
- the information of the wireless side network element that can be connected to the new wireless side network element can be locally configured on the wireless side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new radio side network element determines the new radio side network element and the original L according to the L-GW information that can be connected and the original L-GW identification information. - Whether there is an interface between the GWs.
- the L-GW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the data distribution function entity information and the identification information of the original data distribution function entity that can be connected. Whether there is an interface with the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to have a shift. Motivation.
- the identifier information of the L-SGW, the L-GW, the data offload function, and the radio side network element may be address information or a specific identifier.
- Step 805a According to the judgment result of step 804, if the local IP access connection has mobility, the new radio side network element needs to initiate resource reservation of the local IP access connection.
- the resource reservation of the core network connection needs to be initiated regardless of whether or not there is mobility. That is, regardless of mobility, it does not affect the normal resource reservation process of the core network connection.
- the new radio side network element performs a resource reservation process, and sends a handover confirmation message to the mobility management entity, and brings the address of the target radio side network element and the downlink tunnel identifier to the mobility management entity.
- Step 806a The mobility management entity informs the original local access gateway of the wireless side network element address and the downlink tunnel identifier by using a bearer modification process, and opens a downlink channel for data transmission.
- Step 805b According to the judgment result of step 804, if the local IP access connection does not have mobility, the mobility management entity needs to initiate a local IP access connection release procedure. If the user has a core network connection at the same time, the resource reservation process of the core network connection needs to be initiated regardless of mobility. That is, whether or not it has mobility, it does not affect the normal reservation process of the core network connection.
- the new radio side network element responds to the mobility management entity with a handover confirmation message.
- the message can carry a specific cause value indicating that a local IP access connection cannot be established.
- Step 806b The mobility management entity determines, according to the cause value in the handover confirmation message, that the local IP access connection needs to be released; or the mobility management entity determines that the local IP access needs to be released according to the resource that is not successfully reserved in the handover confirmation message. connection. The mobility management entity releases the user's original local IP access connection through the bearer release process.
- Step 807 Continue to complete the subsequent switching process.
- FIG. 11 is a system architecture of the present invention in FIG. 1, FIG. 2 or FIG. 3, and the local access gateway is an L-GGSN, L-GW.
- Data offload function based on the scenario, provides a flow chart of the handover process of the terminal in the UTRAN system.
- the original local access gateway of the local IP connection is an L-GGSN, an L-GW, and a data offload function. The specific steps in this embodiment are described as follows:
- Step 901 The terminal periodically detects the wireless signal of the local cell and other neighboring cells, and reports the wireless signal to the original wireless side network element in the form of a measurement report.
- the original radio side network element finds that the cell signal accessed by the terminal is lower than the threshold and cannot provide a connection for the user, then a new radio side network element with a suitable signal strength is selected to initiate the handover process.
- Step 902 The original radio side network element sends a relocation request message to the mobility management entity, where the message may carry information of the new radio side network element.
- the information of the new radio side network element includes, but is not limited to, the network element identifier, the closed user group identifier to which the network element belongs, and the like.
- the mobility management entity is the SGSN. When switching, the mobility management entity may change.
- the mobility management entity that is the terminal service after handover is collectively referred to as the new mobility management entity, and the mobility management entity that is the terminal service before the handover is collectively referred to as the original mobility management entity.
- the new mobility management entity is the original mobility management entity. In this embodiment, the mobility management entity does not change.
- the process is similar to this embodiment, except that the original mobile new management entity needs to forward the relocation request to the new mobility management entity.
- the original L-GGSN identification information of the local IP access connection or the original radio side network element identification information of the local IP access connection needs to be included in the message; or when the local gateway uses the external L-GW or the data offloading function entity
- the identification information of the original L-GW or the original data offloading function entity that needs to carry the local IP access connection is similar to this embodiment, except that the original mobile new management entity needs to forward the relocation request to the new mobility management entity.
- the indication information of the local IP access connection may be carried to indicate that the new wireless side network element connection is a local IP access connection, wherein the L-GGSN, the L-GW, the data offload function entity, and the identifier information of the wireless side network element may be
- the address information can also be a specific identifier.
- Step 903 The mobility management entity sends a relocation request message to the new radio side network element, where the message needs to carry the original L-GGSN identification information of the local IP access connection, or carries the original radio side network element identification information of the local IP access connection; Or when the local gateway uses an external L-GW or data When the function of the function entity is offloaded, the information of the original L-GW or the original data offloading function entity of the local IP access connection needs to be carried.
- the local IP access connection indication information may be carried to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 904 The new radio side network element receives the message. If the message carries the indication information of the local IP access connection, it is determined according to the parameter carried in the message whether the local IP connection can be reactivated after the terminal moves, that is, whether the mobility is available. . If the message does not carry the indication information of the local IP access connection, the information may be determined according to whether the original L-SGW identification information or the original radio side network element identification information or the original L-GW identification information or the identification information of the original data distribution function entity is carried. Whether to make the judgment described in this step. Otherwise, the normal switching process in the prior art is continued.
- the new radio side network element determines the new radio side network element and the original L according to the L-GGSN information that can be connected and the original L-GGSN identification information. - Whether there is an interface between the GGSNs.
- the L-GGSN information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the wireless side network element information that can be connected and the identification information of the original wireless side network element. Whether there is an interface with the original wireless side network element.
- the information of the wireless side network element that can be connected to the new wireless side network element can be locally configured on the wireless side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new radio side network element determines the new radio side network element and the original L according to the L-GW information that can be connected and the original L-GW identification information. - Whether there is an interface between the GWs.
- the information of the L-GW that the new radio side network element can connect to can be locally configured on the radio side network element, or can be notified to other network elements, such as the network management HMS. Line side network element.
- the new wireless side network element determines the new wireless side network element according to the data distribution function entity information and the identification information of the original data distribution function entity that can be connected. Whether there is an interface with the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to be mobile.
- the identification information of the L-GGSN, the L-GW, the data offloading function entity, and the radio side network element may be address information or a specific identifier.
- Step 905a According to the judgment result of step 904, if the local IP access connection has mobility, the new radio side network element needs to initiate resource reservation of the local IP access connection.
- the resource reservation of the core network connection needs to be initiated regardless of whether or not there is mobility. That is, regardless of mobility, it does not affect the normal resource reservation process of the core network connection.
- the new radio side network element performs a resource reservation process, and sends a handover confirmation message to the mobility management entity, and brings the address of the new radio side network element and the downlink tunnel identifier to the mobility management entity.
- Step 906a The mobility management entity initiates a PDP context modification process to the original L-GGSN.
- Step 905b, # ⁇ 804 the result of the determination, if the local IP access connection does not have mobility, the mobility management entity needs to initiate a local IP access connection release procedure. If the user has a core network connection at the same time, the resource reservation process of the core network connection needs to be initiated regardless of mobility. That is, whether or not it has mobility, it does not affect the normal reservation process of the core network connection.
- the new radio side network element responds to the mobility management entity with a handover confirmation message. Can be carried in the message A specific cause value indicating that a local IP access connection could not be established.
- Step 906b The mobility management entity determines that the local IP access connection needs to be released according to the cause value in the handover confirmation message; or the mobility management entity determines that the local IP access needs to be released according to the resource in the handover confirmation message that the local IP access connection is not successfully reserved. connection. The mobility management entity releases the user's original local IP access connection through the bearer release process.
- Step 907 Continue to complete the subsequent switching process.
- FIG. 12 is a schematic diagram of the terminal in the LTE system provided on the basis of the system architecture of FIG. 1, FIG. 2 or FIG. 3, and the local access gateway is an L-PGW, L-SGW, L-GW, and data offloading functional entity scenario.
- the original local service gateway of the local IP connection is an L-SGW
- the original local access gateway is an L-PGW, an L-GW, and a data offloading function entity.
- Step 1001 The terminal periodically detects the wireless signal of the local cell and other neighboring cells, and reports the report to the original wireless side network element in the form of a measurement report.
- the original radio side network element finds that the cell signal accessed by the terminal is lower than the threshold and cannot provide a connection for the user, then the target radio side network element with a suitable signal strength is selected to initiate the handover process.
- Step 1002 The original radio side network element sends a handover request message to the target side network element, where the message needs to carry the original L-SGW identification information of the local IP access connection; or the original radio side network element identification information that carries the local IP access connection; Or, when the local gateway adopts an external L-GW or a data offloading function entity, it needs to carry the identification information of the original L-GW or the original data offloading function entity of the local IP access connection. At the same time, it can also carry the indication information of the local IP access connection, to explicitly indicate that the new wireless side network element connection is a local IP access connection.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 1003 The new radio side network element receives the message, if the message carries a local IP access connection.
- the indication information determines whether the local IP connection can be reactivated after the terminal moves according to parameters carried in the message, that is, whether it has mobility. If the message does not carry the indication information of the local IP access connection, the information may be determined according to whether the original L-SGW identification information or the original radio side network element identification information or the original L-GW identification information or the identification information of the original data distribution function entity is carried. Whether to make the judgment described in this step. Otherwise continue the normal X2 handover process in the prior art.
- the new radio side network element determines the new radio side network element and the original L according to the L-SGW information that can be connected and the original L-SGW identification information. - Whether there is an interface between the SGWs.
- the L-SGW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the wireless side network element information that can be connected and the identification information of the original wireless side network element. Whether there is an interface with the original wireless side network element.
- the information of the wireless side network element that can be connected to the new wireless side network element can be locally configured on the wireless side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new radio side network element determines the new radio side network element and the original L according to the L-GW information that can be connected and the original L-GW identification information. - Whether there is an interface between the GWs.
- the L-GW information that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the wireless side network element by other network elements, such as the network management HMS.
- the new wireless side network element determines the new wireless side network element according to the data distribution function entity information and the identification information of the original data distribution function entity that can be connected. Whether there is an interface with the original data offload function entity.
- the information of the data offloading function entity that can be connected to the new radio side network element can be locally configured on the radio side network element, or can be notified to the radio side network element by other network elements, such as the network management HMS.
- the local IP access connection is considered to be mobile.
- the identifier information of the L-SGW, the L-GW, the data offload function entity, and the radio side network element may be address information or a specific identifier.
- Step 1004a According to the judgment result of step 1003, if the local IP access connection has mobility, the new radio side network element needs to initiate resource reservation of the local IP access connection.
- the resource reservation of the core network connection needs to be initiated regardless of whether or not there is mobility. That is, regardless of mobility, it does not affect the normal resource reservation process of the core network connection.
- the new radio side network element performs a resource reservation process, and sends a handover request acknowledgement message to the original radio side network element.
- Step 1005a continue to complete the subsequent handover process.
- step 1004b according to the judgment result of step 1003, if the local IP access connection is not mobile, the mobility management entity needs to initiate a local IP access connection release process, and the resources of the local IP access connection are not reserved at this time. If the user has a core network connection at the same time, the resource reservation process of the core network connection needs to be initiated regardless of whether it has mobility or not. That is, whether or not it has mobility, it does not affect the normal reservation process of the core network connection.
- the new radio side entity sends a handover request acknowledgement message to the original radio side entity, and carries the resource information of the reservation success.
- Step 1005b When the terminal only has a local IP access connection, the original radio side network element needs to send an RRC message to the terminal, where the message indicates that the handover fails.
- the terminal When the terminal has a core network connection, the original wireless side network element needs to send a handover command message to the terminal, instructing the terminal to initiate the handover. At this time, the terminal sends a handover confirmation message to the new wireless side entity to notify the target wireless side network element that the air interface is synchronized.
- Step 1006b The new radio side network element sends a path exchange request message to the mobility management entity. The message carries the resource of the local IP access connection that is not successfully reserved or the specific cause value indicates an indication that the local IP access connection fails to be switched.
- the mobility management entity determines that the local IP access connection needs to be released according to the cause value in the handover confirmation message; or the mobility management entity determines that the local IP access connection needs to be released according to the resource in the handover confirmation message that the local IP access connection is not successfully reserved.
- Step 1008b The mobility management entity releases the original local IP access connection of the user by using a bearer release process.
- the above embodiments of the present invention are applied to local IP access connections without affecting the core network connection.
- the core network connection is handled according to the prior art.
- the above embodiment illustrates the method of supporting mobility for a local IP access connection only by taking the case where there is no home base station gateway and the local gateway is located at or near the wireless side entity.
- the case where there is a home base station gateway is similar.
- the message between the mobility management entity and the wireless side entity and the message between the mobility management entity and the local gateway will be transmitted via the home base station gateway.
- the message between the mobility management entity and the wireless side entity will be transmitted via the home base station gateway, and the message between the mobility management entity and the local gateway
- the home base station gateway forwarding information is no longer needed, and the wireless side network element identification information newly added in the message needs to be replaced by the identification information of the home base station gateway.
- the manner of local IP access connection mobility support is very similar to the above embodiment, and will not affect the description of the present invention, so the description will not be repeated here.
- the wireless side entity may be a base station or a home base station.
- the mobility management entity may be an MME, an MSC, or an SGSN.
- the local gateway may be an L-SGW, an L-PGW, an L-GGSN, an external L-GW, and a data offloading functional entity.
- the core network access gateway may be an S-GW or an SGSN.
- the wireless side network element/home base station gateway accessed by the local IP may be the same as the local access gateway address.
- local IP access can refer to LIPA, the full name of which is represented by Local IP Access, but is not limited to this specific unique title.
- Local IP access can also include one of the following: local IP access user Local network, local IP access to the company's local network, local IP access to the Internet, Internet or corporate or home business offloading operations, specific IP data offloading, are not mentioned below.
- the local gateways mentioned above include: a local access gateway and a local service gateway.
- a system for local IP access connection mobility support comprising: a judgment unit and a mobility processing unit.
- the determining unit is configured to determine, by the new wireless side network element/new home base station gateway, whether the local IP connection has mobility; wherein the determining specifically includes: configuring the new wireless side network element/new home base station gateway by itself or from the HMS
- the network element information sent is compared with the obtained network element information to implement the judgment.
- the mobility processing unit is configured to support corresponding mobility processing on the local IP access connection according to the determination result.
- the obtained network element information specifically includes: the network element information obtained by the new wireless side network element/new home base station gateway from the mobility management entity or the original wireless side network element.
- the judging unit is further configured to: the new radio side network element/new home base station gateway receives the message from the mobility management entity, and parses out the original local gateway/original radio side network element/original home base station gateway carried in the message. After the identification information, and the optional local IP access connection indication, it is explicitly determined whether the local IP access connection has mobility determination; by identifying the new local gateway/new wireless side network element/new home base station gateway, Compare with the original local gateway/original wireless side network element/original home base station gateway identification information to determine the new local gateway/new wireless side network element/new home base station gateway, and the original local gateway/original wireless side network element/original Whether there is an interface between the home base station gateways and whether the local IP access connection has a mobility judgment.
- the mobility processing unit has two specific implementations, the first specific implementation: the mobility processing unit is further configured to perform an activation process when determining that the local IP access connection has mobility; wherein the activation process specifically includes: mobility The management entity activates the local IP access connection.
- the second specific implementation is: the mobility processing unit is further configured to perform a release process when determining that the local IP access connection does not have mobility; wherein, the releasing process specifically includes: the new wireless side network element/new home base station gateway indicating mobility
- the management entity releases the current local IP access connection, and the indication may be an indication of display, or may be implicitly determined by the mobility management entity according to the content of the message returned by the new wireless side network element/new home base station gateway.
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Abstract
本发明公开了一种本地网际协议访问连接移动性支持的方法,该方法包括:新无线侧网元/新家用基站网关判断本地网际协议(IP)连接是否具有移动性; 根据判断结果, 支持对本地IP访问连接的相对应的移动性处理;其中,判断包括:通过将新无线侧网元/新家用基站网关自身配置的网元信息,与获得的网元信息进行比较来实现判断。本发明公开了一种本地网际协议访问连接移动性支持的系统,该系统中,判断单元用于新无线侧网元/新家用基站网关判断本地IP连接是否具有移动性;移动性处理单元,用于根据判断结果,支持对本地IP访问连接的相对应的移动性处理。采用本发明的方法及系统,能对本地IP访问连接的移动性进行支持。
Description
一种本地网际协议访问连接移动性支持的方法及系统 技术领域
本发明涉及移动通信领域, 尤其涉及一种本地网际协议 (IP, Internet Protocol )访问连接移动性支持的方法及系统。 背景技术
第三代合作伙伴计划 ( 3GPP, 3rd Generation Partnership Project ) 演进 的分组系统( EPS , Evolved Packet System ) 由演进的通用移动通信系统陆 地无线接入网 ( E-UTRAN , Evolved Universal Terrestrial Radio Access Network ) 、 移动管理单元(MME, Mobility Management Entity ) 、 服务网 关( SGW, Serving Gateway )、分组数据网络网关( PGW, Packet Data Network Gatewa ) 、 归属用户服务器(HSS, Home Subscriber Server ) 、 3GPP的认 证 4受权计费 ( AAA, Authentication、 Authorization and Accounting )月良务器, 策略和计费规则功能 (PCRF, Policy and Charging Rules Function ) 实体及 其他支撑节点组成。 其中, P-GW也称为 PDN GW, PDN指分组数据网络, 以 Packet Data Network表示。
在现有 EPS的系统架构中, MME负责移动性管理、非接入层信令的处 理和用户移动管理上下文的管理等控制面的相关工作; 接入网关包括 SGW 和 PGW, SGW是与 E-UTRAN相连的接入网关设备,在 E-UTRAN和 PGW 之间转发数据,并且负责对寻呼等待数据进行緩存; PGW则是 EPS与 PDN 网络的边界网关, 负责 PDN的接入及在 EPS与 PDN间转发数据等功能; 鉴权授权服务器包括 HSS, 3GPP AAA服务器; PCRF实体是策略和计费规 则功能实体, 它通过接收接口 Rx和 IP业务网络相连, 获取业务信息, 此 外, 它通过 Gx/Gxa/Gxc接口与网络中的网关设备相连, 负责发起 IP承载
的建立, 保证业务数据的服务质量(QoS, Quality of Service ) , 并进行计 费控制。
家用基站是一种小型、 低功率的基站, 部署在家庭及办公室等室内场 所, 主要作用是为了给用户提供更高的业务速率并降低使用高速率服务所 需要的费用, 同时弥补已有分布式蜂窝无线通信系统覆盖的不足。 家用基 站的优点是实惠、 便捷、 低功率输出、 即插即用等。
家用基站可以直接连接到核心网络, 如图 1所示, 这里, 图 1 中的无 线侧网元可以为家庭基站; 家用基站也可以通过家用基站网关这个逻辑网 元接入到核心网络, 如图 2或图 3所示, 这里, 图 2或图 3中的无线侧网 元可以为家庭基站。 其中, 家用基站网关主要功能为: 验证家用基站的安 全性, 处理家用基站的注册, 对家用基站进行运行维护管理, 根据运营商 要求配置和控制家用基站, 负责交换核心网和家用基站的数据。 图 1、 图 2 或图 3 中, 核心网的接入网关可以是 SGW、 PGW, 服务 GPRS支持节点 ( SGSN, Serving GPRS Support Node ) 、 网关 GPRS支持节点 ( GGSN, Gateway GPRS Support Node ), 其中, GPRS指通用无线分组业务。 本地网 关可以是本地 SGW ( L-SGW, Local SGW ) 、 本地 PGW ( L-PGW, Local PGW )、虚拟 SGW ( V-SGW, Virtual SGW )、虚拟 PGW ( V-PGW, Virtual PSGW ) 、 本地 GGSN ( L-GGSN, Local GGSN ) 、 外置本地网关(L-GW, Local GW ) 、 还可以是数据分流功能实体。 本地网关可以和无线侧网元合 设, 也可以和家用基站网关合设, 还可以在无线侧网元或家用基站网关附 近设置, 即外置方式。
为了实现本地 IP访问功能, 即: 终端对家用网络其他 IP设备或者互联 网络的本地接入, 增设了本地网关, 如图 1、 图 2、 图 3、 或图 4所示。 本 地网关的增设可提供对本地 IP访问技术的有力支持, 本地网关可以和无线 侧网元合设、 或者以外置方式设置在无线侧网元附近; 也可以和家用基站
网关合设、 或者以外置方式设置在家用基站网关附近。
如图 4所示, 显示了在移动通信网络架构中, 本地 IP访问和传统核心 网 IP访问的数据流路径。对于支持本地 IP访问的用户, 可以建立传统的核 心网 IP访问数据路径和本地 IP访问数据路径。 图 4中, 对于本地 IP访问 的连接而言 , 本地 IP访问数据路径为: 从终端至无线侧网元和 /或家用基站 网关、 直至本地网关, 比如 L-SGW或 L-PGW, 数据的传输不经过核心网。 为了实现终端对家用网络其他 IP设备或者互联网络的本地接入, 可以建立 两条连接, 第一条本地 IP访问数据路径直接访问互联网, 即: 互联网本地 IP访问连接。 第二条本地 IP访问数据路径直接访问家用网络其他 IP设备, 即: 家用网络本地 IP访问连接。
当用户发起业务并建立连接后, 为提高用户的体验, 运营商要求网络 必须能够提供业务连续性。 此时要求用户的连接具有移动性, 即当连接具 有移动性时, 网络才能够提供业务连续性。 目前, 迫切需要一种能对本地
IP访问连接的移动性进行支持的实现方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种本地 IP访问连接移动性支 持的方法及系统, 能对本地 IP访问连接的移动性进行支持。
为达到上述目的, 本发明的技术方案是这样实现的:
一种本地网际协议访问连接移动性支持的方法, 该方法包括: 新无线 侧网元 /新家用基站网关判断本地网际协议(IP ) 连接是否具有移动性; 根 据判断结果, 支持对本地 IP访问连接的相对应的移动性处理; 其中,
所述判断包括: 通过将新无线侧网元 /新家用基站网关自身配置或家庭 基站管理系统(HMS ) 下发的网元信息, 与获得的网元信息进行比较来实 现所述判断。
其中, 所述获得的网元信息包括: 新无线侧网元 /新家用基站网关从移
动性管理实体、 或从原无线侧网元获得的网元信息。
其中, 所述新无线侧网元 /新家用基站网关自身配置或 HMS 下发的网 元信息为: 新无线侧网元 /新家用基站网关当前能连接的网元信息; 其中, 所述网元信息包括: 新本地网关 /新无线侧网元 /新家用基站网关所能连接的 本地网关 /无线侧网元 /家用基站网关的标识信息;
所述从移动性管理实体 /原无线侧网元获得的网元信息包括:本地 IP连 接的原本地网关 /原无线侧网元 /原家用基站网关的标识信息, 以及可选的本 地 IP访问连接的指示信息。
其中, 实现所述判断进一步包括:
所述新无线侧网元 /新家用基站网关接收到来自所述移动性管理实体的 消息,解析出所述消息中携带的所述本地 IP连接的原本地网关 /原无线侧网 元 /原家用基站网关的标识信息, 或所述本地 IP访问连接的指示信息后, 明 确需执行本地 IP访问连接是否具有移动性的判断;
通过将所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本 地网关 /无线侧网元 /家用基站网关的标识信息, 与所述本地 IP 连接的原本 地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新无线 侧网元 /新家用基站网关, 与本地 IP连接的原本地网关 /原无线侧网元 /原家 用基站网关之间是否存在接口, 并完成本地 IP访问连接是否具有移动性的 判断。
其中, 当判断结果为: 本地 IP访问连接具有移动性时, 所述移动性处 理为激活处理; 所述激活处理包括: 移动性管理实体激活本地 IP访问连接。
其中, 当判断结果为: 本地 IP访问连接不具有移动性时, 所述移动性 处理为释放处理; 所述释放处理包括: 新无线侧网元 /新家用基站网关指示 移动性管理实体释放当前本地 IP访问连接。
其中, 在移动性管理实体变化的场景下, 该方法进一步包括: 原移动
性管理实体将本地 IP访问连接的原本地网关 /原无线侧网元的标识信息,以 及可选的本地 IP访问连接的指示信息传递给新移动性管理实体。
其中, 在移动性管理实体变化的场景下, 该方法进一步包括: 新无线 侧网元将新本地网关 /新无线侧网元 /新家用基站网关的标识信息传递给新 移动性管理实体。
其中, 所述新本地网关 /原本地网关的标识信息包括: 新本地网关 /原本 地网关的地址信息、 或者用于标识新本地网关 /原本地网关身份的专用标识 信息;
所述新无线侧网元 /原无线侧网元的标识信息包括: 新无线侧网元 /原无 线侧网元的地址信息、 或者用于标识新无线侧网元 /原无线侧网元身份的专 用标识信息;
所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本地网关 / 无线侧网元 /家用基站网关的标识信息包括:本地网关 /无线侧网元 /家用基站 网关的地址信息、 或者用于标识本地网关 /无线侧网元 /家用基站网关身份的 专用标识信息。
其中, 所述新无线侧网元 /原无线侧网元包括: 基站、 家用基站、 或无 线网络控制器 RNC。
其中, 所述新移动性管理实体 /原移动性管理实体包括: 移动管理单元 ( MME )、移动交换中心( MSC )、服务通用无线分组业务支持节点( SGSN )。
其中, 所述新本地网关 /原本地网关包括: 本地服务网关 (L-SGW ) 、 本地分组数据网絡网关 (L-PGW ) 、 本地网关通用无线分组业务支持节点 ( L-GGSN ) 、 或外置的本地网关 (L-GW ) 、 或数据分流功能实体;
核心网的接入网关包括: 服务网关 (SGW ) 、 或 SGSN。
一种本地网际协议访问连接移动性支持的系统, 该系统包括: 判断单 元和移动性处理单元; 其中,
判断单元,用于新无线侧网元 /新家用基站网关判断本地 IP连接是否具 有移动性; 其中, 所述判断包括: 通过将新无线侧网元 /新家用基站网关自 身配置或 HMS下发的网元信息,与获得的网元信息进行比较来实现所述判 断;
移动性处理单元, 用于根据判断结果, 支持对本地 IP访问连接的相对 应的移动性处理。
其中, 所述获得的网元信息包括: 新无线侧网元 /新家用基站网关从移 动性管理实体、 或原无线侧网元获得的网元信息。
其中 , 所述判断单元, 进一步用于所述新无线侧网元 /新家用基站网关 接收到来自所述移动性管理实体 /原无线侧网元的消息, 解析出所述消息中 携带的所述本地 IP访问连接的原本地网关 /原无线侧网元 /原家用基站网关 的标识信息, 以及可选的本地 IP访问连接的指示信息后, 明确需执行本地 IP访问连接是否具有移动性的判断;
通过将所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本 地网关 /无线侧网元 /家用基站网关的标识信息, 与所述本地 IP访问连接的 原本地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新 无线侧网元 /新家用基站网关, 与本地 IP访问连接的原本地网关 /原无线侧 网元 /原家用基站网关之间是否存在接口,并完成本地 IP访问连接是否具有 移动性的判断。
其中, 所述移动性处理单元, 进一步用于当判断出本地 IP访问连接具 有移动性时, 执行激活处理; 其中, 所述激活处理包括: 移动性管理实体 激活本地 IP访问连接。
其中, 所述移动性处理单元, 进一步用于当判断出本地 IP访问连接不 具有移动性时, 执行释放处理; 其中, 所述释放处理包括: 新无线侧网元 / 新家用基站网关指示移动性管理实体释放当前本地 IP访问连接。
本发明的新无线侧网元 /新家用基站网关判断本地 IP 连接是否具有移 动性; 才艮据判断结果, 支持对本地 IP访问连接的相对应的移动性处理; 其 中, 通过将新无线侧网元 /新家用基站网关自身配置或家庭基站管理系统
( HMS, HNB Management System ) 下发的网元信息, 与获得的网元信息 进行比较来实现判断。
采用本发明, 通过判断本地 IP连接是否具有移动性, 并能根据判断结 果执行相对应的移动性处理, 从而实现了对本地 IP访问连接的移动性所进 行的支持。 附图说明
图 1为现有移动通信网络的一连接示意图;
图 2为现有移动通信网络的又一连接示意图;
图 3为现有移动通信网络的另一连接示意图;
图 4为现有移动通信系统中本地 IP接入数据流示意图;
图 5为采用本发明后, 移动通信系统中终端移动后本地 IP接入数据流 示意图;
图 6为本发明 LTE系统中业务请求过程中本地 IP连接激活的流程图; 图 7为本发明 UTRAN系统中业务请求过程中本地 IP连接激活的流程 图;
图 8为本发明 LTE系统中跟踪区更新过程中本地 IP连接激活的流程 图;
图 9为本发明 UTRAN系统中路由区更新过程中本地 IP连接激活的流 程图;
图 10为本发明 LTE系统中切换过程中本地 IP连接激活的流程图; 图 11为本发明 UTRAN系统中切换过程中本地 IP连接激活的流程图; 图 12为本发明 LTE系统中终端进行 X2切换过程的流程图。
具体实施方式
本发明的基本思想是: 新无线侧网元 /新家用基站网关判断本地 IP连接 是否具有移动性; 根据判断结果, 支持对本地 IP访问连接的相对应的移动 性处理。 其中, 通过将新无线侧网元 /新家用基站网关自身配置或 HMS 下 发的的网元信息, 与获得的网元信息进行比较来实现判断。
下面结合附图对技术方案的实施作进一步的详细描述。
以下将现有技术和本发明进行对比阐述, 以更好地体现本发明相对于 现有技术的优点。
如图 5所示, 显示了在移动通信网络架构中, 当终端移动后, 本地 IP 访问和传统核心网 IP访问的数据流路径。 由于本地 IP访问连接的特殊性, 即: 数据流直接从无线侧网元和 /或家用基站网关传输, 因此, 当终端移动 后, 本地 IP访问的数据流需要经过新无线侧网元和 /或家用基站网关、 以及 原本地网关。 其中, 原本地网关位于原无线侧网元 /家用基站网关或外置在 其附近, 可见, 本地 IP 访问连接是否具有移动性取决于新无线侧网元和 / 或家用基站网关、 以及原本地网关这两者之间是否具有接口。 然而, 目前 的现有技术中, 还没有能判断这两者之间是否具有接口关系的解决方案, 因此, 现有技术无法实现本地 IP访问连接的移动性。
本发明相较于现有技术, 提供了一种本地 IP访问连接移动性支持的实 现方案, 来实现本地 IP访问连接的移动性。 当用户进行服务请求或跟踪区 / 路由区更新 /切换时, 新无线侧网元 /家用基站网关根据新移动性管理实体提 供的本地 IP 连接的原本地网关标识信息或原无线侧网元 /家用基站网关的 标识信息, 判断新无线侧网元和 /或家用基站网关、 与本地 IP连接的原本地 网关标识信息或原无线侧网元 /家用基站网关之间是否存在接口, 并根据判 断结果, 对本地 IP访问连接进行相对应的激活或释放的移动性处理。
以下对本发明的本地 IP 访问连接移动性支持的实现方案进行具体阐
述。
一种本地 IP访问连接移动性支持的方法, 该方法包括以下步骤: 步骤 101、 新无线侧网元 /家用基站网关判断本地 IP连接是否具有移动 性。
这里, 本地 IP连接是否具有移动性的判断具体包括: 通过将新无线侧 网元 /新家用基站网关自身配置或 HMS下发的网元信息, 与新无线侧网元 / 家用基站网关获得的网元信息进行比较, 来实现本地 IP访问连接是否具有 移动性的判断。
其中, 新无线侧网元 /新家用基站网关可以从移动性管理实体、 或从原 无线侧网元获得网元信息。
步骤 102、 根据判断结果, 支持对本地 IP访问连接的相对应的移动性 处理。
这里, 移动性处理包括激活或释放。 判断结果不同, 执行的相对应的 移动性处理可以是激活或释放处理。
针对以上由步骤 101〜步骤 102所构成的技术方案而言, 新无线侧网元 / 新家用基站网关自身配置或 HMS 下发的网元信息具体为: 新无线侧网元 / 新家用基站网关当前能连接的网元信息。 其中, 新无线侧网元 /新家用基站 网关当前能连接的网元信息具体包括: 新本地网关 /新无线侧网元 /新家用基 站网关所能连接的本地网关 /无线侧网元 /家用基站网关的标识信息。
新无线侧网元 /新家用基站网关从移动性管理实体获得的网元信息具体 包括: 本地 IP 连接的原本地网关 /原无线侧网元 /原家用基站网关的标识信 息、 还可能包括本地 IP访问连接的指示信息。 这里, 原本地标识信息 /原无 线侧网元标识信息 /原家用基站网关标识信息指的是本地 IP 访问连接建立 时的原本地标识信息 /原无线侧网元标识信息 /原家用基站网关的标识信息。
这里, 步骤 101的具体处理过程包括以下步骤:
步骤 201、 新无线侧网元 /新家用基站网关接收到来自移动性管理实体 的消息, 解析出该消息中携带的本地 IP 连接的原本地网关 /原无线侧网元 / 原家用基站网关的标识信息, 或本地 IP访问连接的指示信息后, 明确需执 行本地 IP访问连接是否具有移动性的判断。
步骤 202、 通过将新本地网关 /新无线侧网元 /新家用基站网关所能连接 的本地网关 /无线侧网元 /家用基站网关的标识信息, 与本地 IP 连接的原本 地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新无线 侧网元 /新家用基站网关, 与本地 IP连接的原本地网关 /原无线侧网元 /原家 用基站网关之间是否存在接口, 并完成本地 IP访问连接是否具有移动性的 判断。
这里, 针对包括激活或释放在内的移动性处理而言, 当判断出新无线 侧网元 /新家用基站网关, 与本地 IP连接的原本地网关 /原无线侧网元 /原家 用基站网关之间是否存在接口, 也就是说, 判断结果具体为: 本地 IP访问 连接具有移动性时, 当前执行的移动性处理具体为激活处理。 激活具体包 括: 移动性管理实体激活本地 IP访问连接。 当判断出新无线侧网元 /新家用 基站网关, 与本地 IP 连接的原本地网关 /原无线侧网元 /原家用基站网关之 间是否存在接口, 也就是说, 判断结果具体为: 本地 IP访问连接不具有移 动性时, 当前执行的移动性处理具体为释放处理。 释放处理具体包括: 新 无线侧网元 /新家用基站网关指示移动性管理实体释放当前本地 IP 访问连 接。
这里, 在移动性管理实体变化的场景下, 该方法进一步包括: 原移动 性管理实体将本地 IP访问连接的原本地网关 /原无线侧网元的标识信息,还 可能包括本地 IP访问连接的指示信息传递给新移动性管理实体。
这里, 在移动性管理实体变化的场景下, 该方法进一步包括: 新无线 侧网元将新本地网关 /新无线侧网元 /新家用基站网关的标识信息传递给新
移动性管理实体。
以下, 分别对各网元实体和各网元实体的标识信息进行阐述。
这里, 新本地网关 /原本地网关的标识信息具体包括: 新本地网关 /原本 地网关的地址信息、 或者用于标识新本地网关 /原本地网关身份的专用标识 信息。
这里, 新无线侧网元 /原无线侧网元的标识信息具体包括: 新无线侧网 元 /原无线侧网元的地址信息、 或者用于标识新无线侧网元 /原无线侧网元身 份的专用标识信息。
这里 , 新本地网关 /新无线侧网元 /新家用基站网关所能连接的本地网关 /无线侧网元 /家用基站网关的标识信息具体包括: 本地网关 /无线侧网元 /家 用基站网关的地址信息、 或者用于标识本地网关 /无线侧网元 /家用基站网关 身份的专用标识信息。
这里, 新无线侧网元 /原无线侧网元具体包括: 基站、 家用基站、 或无 线网络控制器 (RNC, Radio Network Controller ) 。
这里, 新移动性管理实体 /原移动性管理实体具体包括: MME、 移动交 换中心 (MSC, Mobile Switching Centre ) 、 SGSN。
这里, 新本地网关 /原本地网关具体包括: L-SGW、 L-PGW、 L-GGSN、 外置的 L-GW、 或数据分流功能实体。 另外, 核心网的接入网关具体包括: SGW或 SGSN。
这里需要指出的是, 以下为了简化描述, 新无线侧网元 /家用基站网关 这种表述方式是指: 无线侧网元、 家用基站网关都是新的, 以下不做赘述; 同样的, 比如, 以下涉及到的原无线侧网元 /家用基站网关的表述方式是指: 无线侧网元、 家用基站网关都是原来的。 总之, 以下涉及到的有关新或原 的描述都是类似这里的含义, 以下不做赞述。
这里需要指出的是: 在本发明中, 移动性管理实体并不是总是新的,
也有原移动性管理实体发送信息给新基站的。
本发明主要包括以下内容:
新无线侧网元 /家用基站网关根据来自新移动性管理实体的原本地网关 标识信息或原无线侧网元 /家用基站网关的标识信息以及本地 IP 访问连接 的指示信息 , 判断新无线侧网元 /家用基站网关与原本地网关或原无线侧网 元 /家用基站网关之间是否存在接口,即:本地 IP访问连接是否具有移动性。
进一步的, 新无线侧网元 /家用基站网关根据新无线侧网元 /家用基站网 关可以连接的本地网关或无线侧网元 /家用基站网关信息判断新无线侧网元 /家用基站网关与原本地网关或原无线侧网元 /家用基站网关之间是否存在 接口, 即: 本地 IP访问连接是否具有移动性。
进一步的, 当本地 IP访问连接具有移动性时, 新移动性管理实体激活 本地 IP访问连接; 当本地 IP访问连接不具有移动性, 新无线侧网元 /家用 基站网关指示新移动性管理实体释放此本地 IP访问连接。
进一步的, 原移动性管理实体将本地 IP访问连接的原本地网关标识信 息或原无线侧网元标识信息, 以及本地 IP访问连接的指示信息传递给新移 动性管理实体。
进一步的, 新无线侧网元将本地网关 /无线侧网元 /家用基站网关的标识 信息传递给移动性管理实体。
进一步的, 本地网关的标识信息可以是本地网关的地址、 或者是专用 的标识信息。 无线侧网元的标识信息可以是无线侧网元的地址、 或者是专 用的标识信息。
进一步的, 无线侧实体可以是基站、 家用基站、 RNC。 移动性管理实 体可以为 MME、 MSC、 SGSN。本地网关可以是 L-SGW、 L-PGW、 L-GGSN, 外置 L-GW、 数据分流功能实体。 核心网接入网关可以是 S-GW、 SGSN。
本发明的实施例中, 对于 LTE系统, 当采用外置 L-GW或数据分流功
能实体时, L-SGW、 L-PGW不存在, 此时 MME会与 L-GW或数据分流功 能实体进行消息交互, 不再有 L-SGW、 L-PGW的参与。 对于 UMTS系统, 当采用外置 L-GW或数据分流功能实体时, L-GGSN不存在, 此时 SGSN 会与 L-GW或数据分流功能实体进行消息交互, 不再有 L-GGSN的参与。
以下对本发明进行举例阐述。
实施例一:
图 6是本发明在图 1、 图 2或图 3的系统架构、 本地网关为 L-PGW, L-SGW, L-GW, 数据分流功能实体场景的基础上, 提供的 LTE 系统中终 端由空闲态转为连接态时进行服务请求过程的流程图。 在该实施例中, 本 地 IP连接的原本地服务网关为 L-SGW,原本地接入网关为 L-PGW、 L-GW, 数据分流功能实体, 本实施例具体步骤描述如下:
终端空闲时, 移动性管理实体需要保存本地 IP连接的本地网关, 比如 L-PGW、 L-SGW、 外置 L-GW、 或数据分流功能实体的标识信息, 可以保 存本地 IP连接的无线侧网元的标识消息。 其中, L-PGW、 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具 体的标识。
步驟 401、 终端接入无线通信系统后具有本地 IP访问连接, 此后终端 进入空闲态。
步骤 402、 终端经新无线侧网元向移动性管理实体发送服务请求消息。 这里, 无线侧网元向移动性管理实体发送的消息中可以携带新无线侧 网元的标识信息,可以携带新本地网关,比如 L-PGW、 L-SGW的标识信息。 当本地网关采用外置 L-GW或数据分流功能实体的方式时,需要携带 L-GW 或数据分流功能实体的标识信息。 其中 L-PGW、 L-SGW, L-GW, 数据分 流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标 识。 移动性管理实体可以为 MME。
步骤 403、 执行非接入层 (NAS, Non- Access-Stratum ) 的鉴权认证过 程, 该步骤可选。
步骤 404、移动性管理实体向新无线侧网元发送初始上下文建立请求消 息。
这里 , 消息中需要携带本地 IP访问连接的原 L-SGW标识信息; 或者 携带本地 IP访问连接的原无线侧网元标识信息; 或者当本地网关采用外置 L-GW或数据分流功能实体的方式时,需要携带本地 IP访问连接的原 L-GW 或原数据分流功能实体的标识信息。 同时还可以携带本地 IP访问连接的指 示信息 ,用以明确指示新无线侧网元连接是本地 IP访问连接。其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可 以是具体的标识。
当用户进行业务请求时, 如果无线侧网元并没有发生变化, 即: 新无 线侧网元与原无线侧网元相同, 则移动性管理实体在发送的消息中可以不 携带上述信息。
步骤 405、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接 的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即: 是否具有移动性。 若消息中未携带本地 IP访问连接的 指示信息,可以根据是否携带原 L-SGW标识信息或原无线侧网元标识信息 或原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行 此步骤描述的判断。 否则继续现有技术中正常的业务请求流程。
这里, 若消息中携带的是本地 IP访问连接的原 L-SGW标识信息, 新 无线侧网元根据其可以连接的 L-SGW信息和原 L-SGW的标识信息, 判断 新无线侧网元与原 L-SGW 之间是否存在接口。 新无线侧网元可以连接的 L-SGW的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原无线侧网元标识信息, 新无线 侧网元根据其可以连接的无线侧网元信息和原无线侧网元的标识信息, 判 断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元可以连 接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原 L-GW标识信息, 新无线侧网 元根据其可以连接的 L-GW信息和原 L-GW的标识信息, 判断新无线侧网 元与原 L-GW之间是否存在接口。 新无线侧网元可以连接的 L-GW的信息 可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无 线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能 实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-SGW 之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口, 则认为本地 IP访问连接具有移 动性。
其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可 以是地址信息, 也可以是具体的标识。
步骤 406a、根据步骤 405的判断结果,若本地 IP访问连接具有移动性, 则新无线侧网元需要发起本地 IP访问连接的无线侧承载建立流程。
这里, 若用户同时存在核心网连接, 则无论是否具有移动性, 都需要 发起核心网连接的无线侧承载建立流程。 即无论是否具有移动性, 都不影
响核心网络连接的正常激活流程。
新无线侧网元执行无线承载建立过程。
步骤 407a、无线侧网元回应移动性管理实体初始上下文建立完成消息。 步骤 408a、移动性管理实体向原 L-SGW发起承载修改流程。原 L-SGW 与原 L-PGW可能进行承载修改流程。
步骤 406b、 才艮据步骤 405的判断结果, 若本地 IP访问连接不具有移动 性, 则移动性管理实体需要发起本地 IP访问连接释放流程。 若用户同时存 在核心网连接, 则无论是否具有移动性, 都需要发起核心网连接的无线侧 承载建立流程。 即无论是否具有移动性, 都不影响核心网络连接的正常激 活流程。
新无线侧网元给移动性管理实体回应初始上下文建立完成消息或初始 上下文建立失败消息。 若用户只存在本地 IP访问连接, 则需要回应初始上 下文建立失败消息, 携带特定的原因值, 指示无法建立本地 IP访问连接。 若用户同时存在核心网络连接, 则在为核心网连接完成无线侧承载建立之 后, 才艮据无线 载建立情况, 回应初始上下文建立完成消息或初始上下文 建立失败消息, 消息中需要携带特定的原因值, 指示无法建立本地 IP访问 连接。
步骤 407b、 移动性管理实体向原 L-SGW发起会话释放流程。
步骤 408b、 原 L-SGW与原 L-PGW进行会话释放流程。
当本地 IP访问连接不具有移动性时,本实施例中以释放本地 IP访问连 接为例, 此时, 也可以将本地 IP访问连接转为核心网连接, 此流程与现有 技术相同, 此处不再详述。
当下行数据触发网络发起对空闲态用户的寻呼后, 用户会发起业务请 求流程来激活连接, 此时本地 IP访问连接是否激活与图 4流程处理相同, 此处不再详述。
实施例二:
图 7是本发明在图 1、图 2或图 3系统架构、本地网关为 L-GGSN、L-GW、 数据分流功能实体场景的基础上,提供的通用陆地无线接入网络(UTRAN, Universal Terrestrial Radio Access Network )系统中终端由空闲态转为连接态 时进行服务请求过程的流程图。在该实施例中,原本地接入网关为 L-GGSN、 L-GW、 数据分流功能实体, 本实施例具体步骤描述如下:
终端空闲时, 移动性管理实体需要保存本地 IP连接的本地网关, 比如 L-GGSN、 外置 L-GW、 数据分流功能实体的标识信息, 可以保存本地 IP 连接的无线侧网元的标识信息。 其中 L-GGSN、 L-GW,数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标识。
步骤 501、 终端接入无线通信系统后具有本地 IP访问连接, 此后终端 进入空闲态。
步骤 502、 终端经新无线侧网元向移动性管理实体发送服务请求消息。 这里, 新无线侧网元向移动性管理实体发送的消息中可以携带新无线 侧网元标识信息, 可以携带新本地网关, 如 L-GGSN的标识信息。 当本地 网关采用外置 L-GW或数据分流功能实体的方式时, 需要携带 L-GW或数 据分流功能实体的标识信息。 其中 L-GGSN、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标识。 移动性管 理实体为 SGSN。
步骤 503、 执行 NAS的鉴权认证过程, 该步骤可选。
步骤 504、移动性管理实体向新无线侧网元发送无线接入承载分配请求 消息。
这里, 消息中需要携带本地 IP访问连接的原 L-GGSN标识信息; 或者 携带本地 IP访问连接的原无线侧网元标识信息; 或者当本地网关釆用外置 L-GW或数据分流功能实体的方式时,需要携带本地 IP访问连接的原 L-GW
或数据分流功能实体的标识信息。 同时还可以携带本地 IP访问连接的指示 信息, 用以明确指示新无线侧网元连接是本地 IP访问连接。其中 L-GGSN、 L-GW、 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可 以是具体的标识。
当用户进行业务请求时, 如果无线侧网元并没有发生变化, 即: 新无 线侧网元与原无线侧网元相同, 移动性管理实体在发送的消息中可以不携 带上述信息。
步骤 505、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接 的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即是否具有移动性。 若消息中未携带本地 IP访问连接的指 示信息, 可以根据是否携带原 L-GGSN标识信息或原无线侧网元标识信息 或原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行 此步骤描述的判断。 否则继续现有技术中正常的业务请求流程。
这里, 若消息中携带了本地 IP访问连接的原 L-GGSN标识信息, 未携 带原无线侧网元标识信息, 新无线侧网元根据其可以连接的 L-GGSN信息 和原 L-GGSN的标识信息, 判断新无线侧网元与原 L-GGSN之间是否存在 接口。 新无线侧网元可以连接的 L-GGSN信息可以本地配置在无线侧网元 上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带了本地 IP访问连接的原 L-GW标识信息, 未携带原无线 侧网元标识信息, 新无线侧网元根据其可以连接的 L-GW信息和原 L-GW 的标识信息, 判断新无线侧网元与原 L-GW之间是否存在接口。 新无线侧 网元可以连接的 L-GW信息可以本地配置在无线侧网元上, 也可以由其它 网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能
实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上 , 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带了本地 IP访问连接的原无线侧网元标识信息, 新无线侧 网元还可以根据其可以连接的无线侧网元信息和原无线侧网元的标识信 息, 判断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元 可以连接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其 它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-GGSN之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口, 则认为本地 IP访问连接具有移 动性。
其中 L-GGSN、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可 以是地址信息, 也可以是具体的标识。
步骤 506a、根据步骤 505的判断结果,若本地 IP访问连接具有移动性, 则新无线侧网元需要发起本地 IP访问连接的无线侧承载建立流程。
这里, 若用户同时存在核心网连接, 则无论是否具有移动性, 都需要 发起核心网连接的无线侧承载建立流程。 即无论是否具有移动性, 都不影 响核心网络连接的正常激活流程。
新无线侧网元执行无线承载建立过程。
步骤 507a、 无线侧网元回应移动性管理实体无线接入承载分配响应消 息。
步骤 508a、移动性管理实体可能向终端发起分组数据协议( PDP, Packet Data Protocol )上下文 4爹改流程。
步骤 509a、移动性管理实体可能向原 L-GGSN发起 PDP上下文修改流
程。
步骤 506b、 ^^据步骤 505的判断结果, 若本地 IP访问连接不具有移动 性, 则移动性管理实体需要发起本地 IP访问连接释放流程。 若用户同时存 在核心网连接, 则无论是否具有移动性, 都需要发起核心网连接的无线侧 承载建立流程。 即无论是否具有移动性, 都不影响核心网络连接的正常激 活流程。
新无线侧网元给移动性管理实体回应无线接入承载分配响应消息或无 线接入承载分配失败消息。 若用户只存在本地 IP访问连接, 则需要回应无 线接入承载分配失败消息, 携带特定的原因值, 指示无法建立本地 IP访问 连接。 若用户同时存在核心网络连接, 则在为核心网连接完成无线侧承载 建立之后, 根据无线承载建立情况, 回应无线接入承载分配响应消息或无 线接入承载分配失败消息, 消息中需要携带特定的原因值, 指示无法建立 本地 IP访问连接。
步骤 507b、 移动性管理实体向原 L-GGSN发起 PDP上下文删除流程。 步骤 508a、 移动性管理实体可能向终端发起 PDP上下文去活流程。 当本地 IP访问连接不具有移动性时,本实施例中以释放本地 IP访问连 接为例, 此时, 也可以将本地 IP访问连接转为核心网连接, 此流程与现有 技术类似, 此处不再详述。
当下行数据触发网络发起对空闲态用户的寻呼后, 用户会发起业务请 求流程来激活连接, 此时本地 IP访问连接是否激活与图 7流程处理相同, 此处不再详述。
实施例三:
图 8是本发明在图 1、图 2或图 3系统架构、本地网关为 L-PGW, L-SGW, L-GW, 数据分流功能实体场景的基础上, 提供的 LTE 系统中终端由空闲 态转为连接态时进行跟踪区更新过程的流程图。 在该实施例中, 本地 IP连
接的原本地服务网关为 L-SGW, 原本地接入网关为 L-PGW、 L-GW、 数据 分流功能实体, 本实施例具体步骤描述如下:
终端空闲时, 移动性管理实体需要保存本地 IP连接的本地网关, 比如 L-PGW, L-SGW, 外置 L-GW、 数据分流功能实体的标识信息, 可以保存 本地 IP连接的无线侧网元的标识信息。 其中 L-PGW、 L-SGW. L-GW、 数 据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体 的标识。
步骤 601、 终端接入无线通信系统后具有本地 IP访问连接, 此后终端 进入空闲态。
步驟 602、空闲态的终端定期或者由于移动导致跟踪区列表发生变化发 起跟踪区更新流程。 终端发送 NAS消息, 即: 跟踪区更新请求给当前为终 端服务的无线侧网元。 当终端移动后, 该无线侧网元可能和终端进入空闲 态之前的无线侧网元不同。 其中, 终端发送跟踪区更新请求给当前为终端 服务的无线侧网元, 这里的无线侧网元统称为新无线侧网元; 终端进入空 闲态之前的无线侧网元, 这里的无线侧网元统称为原无线侧网元, 以下不 做赘述。
无线侧网元为用户选择当前服务的移动性管理实体, 即: 统称为新移 动性管理实体, 并将跟踪区更新请求包含在初始的用户消息 /上下消息传输 消息中发给新移动性管理实体。 其中无线侧网元向移动性管理实体发送的 消息中可以携带新无线侧网元标识信息,可以携带新本地网关,如 L-PGW、 L-SGW的标识信息。 本地网关釆用外置 L-GW或数据分流功能实体的方式 时,需要携带 L-GW或数据分流功能实体的标识信息。其中 L-PGW、 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可 以是具体的标识。 移动性管理实体为 MME, 新无移动性管理实体与终端进 入空闲态之前的移动性管理实体, 即: 统称为原移动性管理实体可能相同。
步骤 603、 当新移动性管理实体与原移动性管理实体不相同时, 新移动 性管理实体向旧移动性管理实体发起上下问获取流程。
步骤 604、原移动性管理实体将用户的上下文信息包含在上下文响应消 息中, 发给新移动性管理实体。
这里, 若用户存在本地 IP访问连接, 消息中需要携带本地 IP访问连接 的原 L-SGW标识信息; 或者携带本地 IP访问连接的原无线侧网元标识信 息; 或者当本地网关采用外置 L-GW或数据分流功能实体的方式时, 需要 携带本地 IP访问连接的原 L-GW或原数据分流功能实体的标识信息。 同时 还可以携带本地 IP访问连接的指示信息, 用以明确指示新无线侧网元连接 是本地 IP访问连接。 其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网 元的标识信息可以是地址信息, 也可以是具体的标识。
步骤 605、 新移动性管理实体可能发起对用户的认证鉴权流程。
步骤 606、 新移动性管理实体保存步骤 604中携带信息, 并向原移动性 管理实体回应上下文确认消息。
步骤 607、 新移动性管理实体为本地 IP访问连接选择原 L-SGW, 并向 原 L-SGW发起承载更新流程。 原 L-SGW可能会向原 L-PGW发起 载更 新流程。
当用户存在核心网连接时, 新移动性管理实体还需要发起核心网连接 的会话建立或承载更新流程。
步骤 608、 新移动性管理实体向鉴权授权服务器发起位置更新流程。 步骤 609、 鉴权授权服务器向原移动性管理实体发起位置删除流程。原 移动性管理实体可能发起核心网连接的会话删除流程。
步骤 610、 当终端发送的路由区更新请求中未携带激活标志时, 且新移 动性管理实体决定不激活用户的承载时, 新移动性管理实体发送路由区更 新接受给终端, 然后直接执行步骤 615、 步骤 616。 此时本地 IP访问连接是
否激活待终端进行业务请求时按照图 6流程处理。
当终端发送的路由区更新请求中携带激活标志时, 或者, 终端发送的 路由区更新请求中未携带激活标志时, 但是新移动性管理实体决定激活用 户的承载时, 移动性管理实体向新无线侧网元发送初始上下文建立请求消 息, 同时发送路由区更新接受消息。 消息中需要携带本地 IP访问连接的原
L-SGW标识信息; 或者携带本地 IP访问连接的原无线侧网元标识信息; 或 者当本地网关釆用外置 L-GW或数据分流功能实体的方式时, 需要携带本 地 IP访问连接的原 L-GW或原数据分流功能实体的标识信息。 同时还可以 携带本地 IP访问连接的指示信息, 用以明确指示新无线侧网元连接是本地 IP访问连接。 其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标 识信息可以是地址信息, 也可以是具体的标识。
当用户进行路由区更新时, 无线侧网元并没有发生变化, 即新无线侧 网元与原无线侧网元相同, 移动性管理实体在发送的消息中可以不携带上 述信息。
步骤 611、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接 的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即是否具有移动性。 若消息中未携带本地 IP访问连接的指 示信息,可以根据是否携带原 L-SGW标识信息或原无线侧网元标识信息或 原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行此 步骤描述的判断。 否则继续现有技术中正常的路由区更新请求流程。
若消息中携带的是本地 IP访问连接的原 L-SGW标识信息, 新无线侧 网元根据其可以连接的 L-SGW信息和原 L-SGW的标识信息, 判断新无线 侧网元与原 L-SGW之间是否存在接口。 新无线侧网元可以连接的 L-SGW 的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通 知给无线侧网元。
若消息中携带的是本地 IP访问连接的原无线侧网元标识信息, 新无线 侧网元根据其可以连接的无线侧网元信息和原无线侧网元的标识信息, 判 断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元可以连 接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原 L-GW标识信息, 新无线侧网 元根据其可以连接的 L-GW信息和原 L-GW的标识信息, 判断新无线侧网 元与原 L-GW之间是否存在接口。 新无线侧网元可以连接的 L-GW的信息 可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无 线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能 实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-SGW 之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口, 则认为本地 IP访问连接具有移 动性。
其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可 以是地址信息, 也可以是具体的标识。
步骤 612a-614a同步骤 406a-408a。
步骤 612b-614b同步骤 406b-408b。
步骤 615、 616, 新无线侧网元将新移动性管理实体发送路由区更新接 受消息转发给终端。 终端可能回应路由区更新完成消息。
当本地 IP访问连接不具有移动性时 ,本实施例中以释放本地 IP访问连 接为例, 此时, 也可以将本地 IP访问连接转为核心网连接, 此流程与现有 技术类似, 此处不再详述。
实施例四:
图 9是本发明在图 1、图 2或图 3系统架构、本地网关为 L-GGSN、L-GW、 数据分流功能实体场景的基础上, 提供的 UTRAN 系统中终端由空闲态转 为连接态时进行路由区更新过程的流程图。 在该实施例中, 本地 IP连接的 原本地接入网关为 L-GGSN、 L-GW、 数据分流功能实体, 本实施例具体步 骤描述如下:
终端空闲时, 移动性管理实体需要保存本地 IP 连接的本地网关, 如
L-GGSN、 外置 L-GW、 数据分流功能实体的标识信息, 可以保存本地 IP 连接的无线侧网元的标识信息。 其中 L-GGSN、 L-GW、数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标识。
步骤 701、 终端接入无线通信系统后具有本地 IP访问连接, 此后终端 进入空闲态。
步骤 702、空闲态的终端定期或者由于移动导致路由区发生变化发起路 由区更新流程。 终端发送 NAS消息, 即: 路由区更新请求新无线侧网元。 当终端移动后, 该无线侧网元可能和原无线侧网元不同。
无线侧网元为用户选择当前服务的新移动性管理实体, 并将根据区更 新请求包含在初始的用户消息 /直传消息中发给新移动性管理实体。 其中无 线侧网元向移动性管理实体发送的消息中可以携带新无线侧网元标识信 息,可以携带新本地网关 ,如 L-GGSN的标识信息。本地网关采用外置 L-GW 或数据分流功能实体的方式时, 需要携带 L-GW或数据分流功能实体的标 识信息。 其中 L-GGSN、 L-GW, 数据分流功能实体、 无线侧网元的标识信 息可以是地址信息, 也可以是具体的标识。 移动性管理实体为 SGSN, 新移
动性管理实体与原移动性管理实体可能相同。
步骤 703、 当新移动性管理实体与原移动性管理实体不相同时, 新移动 性管理实体向原移动性管理实体发起上下问获取流程。
步骤 704、原移动性管理实体将用户的上下文信息包含在上下文响应消 息中, 发给新移动性管理实体。
这里, 若用户存在本地 IP访问连接, 消息中需要携带本地 IP访问连接 的原 L-GGSN标识信息; 或者携带本地 IP访问连接的原无线侧网元标识信 息; 或者当本地网关采用外置 L-GW或数据分流功能实体的方式时, 需要 携带本地 IP访问连接的原 L-GW或原数据分流功能实体的标识信息。 同时 还可以携带本地 IP访问连接的指示信息, 用以明确指示新无线侧网元连接 是本地 IP访问连接。 其中 L-GGSN、 L-GW, 数据分流功能实体、 无线侧 网元的标识信息可以是地址信息, 也可以是具体的标识。 新移动性管理实 体保存原移动性管理实体传递的信息。 此时本地 IP访问连接是否激活待终 端进行业务清求时按照图 7流程处理。
步骤 705、 继续现有路由区更新的现有流程。
实施例五:
图 10是本发明在图 1、图 2或图 3系统架构、本地接入网关为 L-PGW, L-SGW, L-GW, 数据分流功能实体场景的基础上, 提供的 LTE 系统中终 端进行切换过程的流程图。 在该实施例中, 本地 IP连接的原本地服务网关 为 L-SGW, 原本地接入网关为 L-PGW、 L-GW, 数据分流功能实体, 本实 施例具体步骤描述如下:
步骤 801、 终端周期检测本小区及其他相邻小区的无线信号, 以测量 4艮 告的形式上报给原无线侧网元。 当原无线侧网元发现目前终端所接入的小 区信号已低于阈值不能为用户提供连接那么就选择一个信号强度适合的新 无线侧网元发起切换过程。
步骤 802、原无线侧网元发送切换请求消息给移动性管理实体, 消息中 可以携带新无线侧网元的信息。 新无线侧网元的信息包括但不限於网元标 识、 网元所属闭合用户组标识等。 其中移动性管理实体为 MME。 切换时, 移动性管理实体可能会发生变化, 将切换后为终端服务的移动性管理实体 统称为新移动性管理实体, 将切换前为终端服务的移动性管理实体统称为 原移动性管理实体, 当切换后移动性管理实体为发生变化时, 新移动性管 理实体即是原移动性管理实体。 本实施例以移动性管理实体未发生变化为 例, 当移动性管理实体发生变化后, 流程与本实施例类似, 只是在原移动 新管理实体需要将切换请求转发给新移动性管理实体, 同时需要在消息中 包含本地 IP访问连接的原 L-SGW标识信息、 原 L-GW标识信息、 原数据 分流功能实体标识信息或本地 IP访问连接的原无线侧网元标识信息; 同时 还可以携带本地 IP访问连接的指示信息, 用以明确指示新无线侧网元连接 是本地 IP访问连接。
步骤 803、 移动性管理实体向新无线侧网元发送切换请求消息, 消息中 需要携带本地 IP访问连接的原 L-SGW标识信息; 或者携带本地 IP访问连 接的原无线侧网元标识信息; 或者当本地网关采用外置 L-GW或数据分流 功能实体的方式时, 需要携带本地 IP访问连接的原 L-GW或数据分流功能 实体的标识信息。 同时还可以携带本地 IP访问连接的指示信息, 用以明确 指示新无线侧网元连接是本地 IP访问连接。 其中 L-SGW、 L-GW, 数据分 流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标 识。
步骤 804、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接 的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即是否具有移动性。 若消息中未携带本地 IP访问连接的指 示信息,可以根据是否携带原 L-SGW标识信息或原无线侧网元标识信息或
原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行此 步骤描述的判断。 否则继续现有技术中正常的切换流程。
若消息中携带的是本地 IP访问连接的原 L-SGW标识信息, 新无线侧 网元根据其可以连接的 L-SGW信息和原 L-SGW的标识信息, 判断新无线 侧网元与原 L-SGW之间是否存在接口。 新无线侧网元可以连接的 L-SGW 的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通 知给无线侧网元。
若消息中携带的是本地 IP访问连接的原无线侧网元标识信息, 新无线 侧网元根据其可以连接的无线侧网元信息和原无线侧网元的标识信息 , 判 断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元可以连 接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原 L-GW标识信息, 新无线侧网 元根据其可以连接的 L-GW信息和原 L-GW的标识信息, 判断新无线侧网 元与原 L-GW之间是否存在接口。 新无线侧网元可以连接的 L-GW的信息 可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无 线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能 实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-SGW 之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口, 则认为本地 IP访问连接具有移
动性。
其中 L-SGW、 L-GW、 数据分流功能、 无线侧网元的标识信息可以是 地址信息, 也可以是具体的标识。
步骤 805a、根据步骤 804的判断结果,若本地 IP访问连接具有移动性, 则新无线侧网元需要发起本地 IP访问连接的资源预留。
这里, 若用户同时存在核心网连接, 则无论是否具有移动性, 都需要 发起核心网连接的资源预留。 即无论是否具有移动性, 都不影响核心网络 连接的正常资源预留过程。
新无线侧网元执行资源预留过程, 给移动性管理实体发送切换确认消 息, 将目标无线侧网元的地址和下行隧道标识带给移动性管理实体。
步骤 806a、 移动性管理实体通过承载 ^^改过程将无线侧网元地址和下 行隧道标识告知原本地接入网关, 打通数据传输的下行通道。
步骤 805b、 才艮据步骤 804的判断结果, 若本地 IP访问连接不具有移动 性, 则移动性管理实体需要发起本地 IP访问连接释放流程。 若用户同时存 在核心网连接, 则无论是否具有移动性, 都需要发起核心网连接的资源预 留流程。 即无论是否具有移动性, 都不影响核心网络连接的正常预留流程。
新无线侧网元给移动性管理实体回应切换确认消息。 消息中可以携带 特定的原因值, 指示无法建立本地 IP访问连接。
步骤 806b、 移动性管理实体根据切换确认消息中的原因值判断需要释 放本地 IP访问连接; 或者移动性管理实体根据切换确认消息中未成功预留 本地 IP访问连接的资源来判断需要释放本地 IP访问连接。移动性管理实体 通过承载释放过程将用户原有的本地 IP访问连接释放。
步骤 807、 继续完成后续的切换过程。
实施例六:
图 11是本发明在图 1、图 2或图 3系统架构、本地接入网关为 L-GGSN、
L-GW. 数据分流功能, 场景的基础上, 提供的 UTRAN系统中终端进行切 换过程的流程图。 在该实施例中, 本地 IP 连接的原本地接入网关为 L-GGSN、 L-GW, 数据分流功能, 本实施例具体步骤描述如下:
步骤 901、 终端周期检测本小区及其他相邻小区的无线信号, 以测量 4艮 告的形式上报给原无线侧网元。 当原无线侧网元发现目前终端所接入的小 区信号已低于阈值不能为用户提供连接那么就选择一个信号强度适合的新 无线侧网元发起切换过程。
步骤 902、原无线侧网元发送重定位请求消息给移动性管理实体, 消息 中可以携带新无线侧网元的信息。 新无线侧网元的信息包括但不限於网元 标识、 网元所属闭合用户组标识等。其中移动性管理实体为 SGSN。切换时, 移动性管理实体可能会发生变化, 将切换后为终端服务的移动性管理实体 统称为新移动性管理实体, 将切换前为终端服务的移动性管理实体统称为 原移动性管理实体, 当切换后移动性管理实体为发生变化时, 新移动性管 理实体即是原移动性管理实体。 本实施例以移动性管理实体未发生变化为 例, 当移动性管理实体发生变化后, 流程与本实施例类似, 只是在原移动 新管理实体需要将重定位请求转发给新移动性管理实体, 同时需要在消息 中包含本地 IP访问连接的原 L-GGSN标识信息、 或本地 IP访问连接的原 无线侧网元标识信息; 或当本地网关釆用外置 L-GW或数据分流功能实体 的方式时, 需要携带本地 IP访问连接的原 L-GW或原数据分流功能实体的 标识信息。 同时还可以携带本地 IP访问连接的指示信息, 用以明确指示新 无线侧网元连接是本地 IP访问连接其中 L-GGSN、 L-GW, 数据分流功能 实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体的标识。
步骤 903、 移动性管理实体向新无线侧网元发送重定位请求消息, 消息 中需要携带本地 IP访问连接的原 L-GGSN标识信息; 或者携带本地 IP访 问连接的原无线侧网元标识信息; 或者当本地网关采用外置 L-GW或数据
分流功能实体的方式时, 需要携带本地 IP访问连接的原 L-GW或原数据分 流功能实体的标识信息。 同时还可以携带本地 IP访问连接的指示信息, 用 以明确指示新无线侧网元连接是本地 IP访问连接。 其中 L-SGW、 L-GW、 数据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具 体的标识。
步骤 904、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接 的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即是否具有移动性。 若消息中未携带本地 IP访问连接的指 示信息,可以根据是否携带原 L-SGW标识信息或原无线侧网元标识信息或 原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行此 步骤描述的判断。 否则继续现有技术中正常的切换流程。
若消息中携带的是本地 IP访问连接的原 L-GGSN标识信息, 新无线侧 网元根据其可以连接的 L-GGSN信息和原 L-GGSN的标识信息, 判断新无 线侧网元与原 L-GGSN 之间是否存在接口。 新无线侧网元可以连接的 L-GGSN 的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网 管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原无线侧网元标识信息, 新无线 侧网元根据其可以连接的无线侧网元信息和原无线侧网元的标识信息, 判 断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元可以连 接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原 L-GW标识信息, 新无线侧网 元根据其可以连接的 L-GW信息和原 L-GW的标识信息, 判断新无线侧网 元与原 L-GW之间是否存在接口。 新无线侧网元可以连接的 L-GW的信息 可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无
线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能 实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-GGSN之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口 , 则认为本地 IP访问连接具有移 动性。
其中 L-GGSN、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可 以是地址信息, 也可以是具体的标识。
步骤 905a、根据步骤 904的判断结果,若本地 IP访问连接具有移动性, 则新无线侧网元需要发起本地 IP访问连接的资源预留。
这里, 若用户同时存在核心网连接, 则无论是否具有移动性, 都需要 发起核心网连接的资源预留。 即无论是否具有移动性, 都不影响核心网络 连接的正常资源预留过程。
新无线侧网元执行资源预留过程, 给移动性管理实体发送切换确认消 息, 将新无线侧网元的地址和下行隧道标识带给移动性管理实体。
步骤 906a, 移动性管理实体向原 L-GGSN发起 PDP上下文修改流程。 步骤 905b、 #居步骤 804的判断结果, 若本地 IP访问连接不具有移动 性, 则移动性管理实体需要发起本地 IP访问连接释放流程。 若用户同时存 在核心网连接, 则无论是否具有移动性, 都需要发起核心网连接的资源预 留流程。 即无论是否具有移动性, 都不影响核心网络连接的正常预留流程。
新无线侧网元给移动性管理实体回应切换确认消息。 消息中可以携带
特定的原因值, 指示无法建立本地 IP访问连接。
步骤 906b、 移动性管理实体根据切换确认消息中的原因值判断需要释 放本地 IP访问连接; 或者移动性管理实体根据切换确认消息中未成功预留 本地 IP访问连接的资源来判断需要释放本地 IP访问连接。移动性管理实体 通过承载释放过程将用户原有的本地 IP访问连接释放。
步骤 907、 继续完成后续的切换过程。
实施例七:
图 12是本发明在图 1、图 2或图 3系统架构、本地接入网关为 L-PGW, L-SGW, L-GW, 数据分流功能实体场景的基础上, 提供的 LTE 系统中终 端进行 X2切换过程的流程图。 在该实施例中, 本地 IP连接的原本地服务 网关为 L-SGW, 原本地接入网关为 L-PGW、 L-GW, 数据分流功能实体, 本实施例具体步骤描述如下:
步骤 1001、 终端周期检测本小区及其他相邻小区的无线信号, 以测量 报告的形式上报给原无线侧网元。 当原无线侧网元发现目前终端所接入的 小区信号已低于阈值不能为用户提供连接那么就选择一个信号强度适合的 目标无线侧网元发起切换过程。
步驟 1002、 由于原无线侧网元向目标侧网元发送切换请求消息, 消息 中需要携带本地 IP访问连接的原 L-SGW标识信息; 或者携带本地 IP访问 连接的原无线侧网元标识信息; 或者当本地网关采用外置 L-GW或数据分 流功能实体的方式时, 需要携带本地 IP访问连接的原 L-GW或原数据分流 功能实体的标识信息。 同时还可以携带本地 IP访问连接的指示信息, 用以 明确指示新无线侧网元连接是本地 IP访问连接。 其中 L-SGW、 L-GW、 数 据分流功能实体、 无线侧网元的标识信息可以是地址信息, 也可以是具体 的标识。
步骤 1003、 新无线侧网元收到消息, 若消息中携带有本地 IP访问连接
的指示信息, 则根据消息中携带的参数判断本地 IP连接是否在终端移动后 可以重新激活, 即是否具有移动性。 若消息中未携带本地 IP访问连接的指 示信息,可以根据是否携带原 L-SGW标识信息或原无线侧网元标识信息或 原 L-GW的标识信息或原数据分流功能实体的标识信息来决定是否进行此 步骤描述的判断。 否则继续现有技术中正常的 X2切换流程。
若消息中携带的是本地 IP访问连接的原 L-SGW标识信息, 新无线侧 网元根据其可以连接的 L-SGW信息和原 L-SGW的标识信息, 判断新无线 侧网元与原 L-SGW之间是否存在接口。 新无线侧网元可以连接的 L-SGW 的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通 知给无线侧网元。
若消息中携带的是本地 IP访问连接的原无线侧网元标识信息, 新无线 侧网元根据其可以连接的无线侧网元信息和原无线侧网元的标识信息, 判 断新无线侧网元与原无线侧网元之间是否存在接口。 新无线侧网元可以连 接的无线侧网元的信息可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若消息中携带的是本地 IP访问连接的原 L-GW标识信息, 新无线侧网 元根据其可以连接的 L-GW信息和原 L-GW的标识信息, 判断新无线侧网 元与原 L-GW之间是否存在接口。 新无线侧网元可以连接的 L-GW的信息 可以本地配置在无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无 线侧网元。
若消息中携带的是本地 IP访问连接的原数据分流功能实体标识信息, 新无线侧网元根据其可以连接的数据分流功能实体信息和原数据分流功能 实体的标识信息, 判断新无线侧网元与原数据分流功能实体之间是否存在 接口。 新无线侧网元可以连接的数据分流功能实体的信息可以本地配置在 无线侧网元上, 也可以由其它网元, 如网管 HMS通知给无线侧网元。
若新无线侧网元与原 L-SGW 之间存在接口或新无线侧网元与原无线 侧网元之间存在接口或新无线侧网元与原 L-GW之间存在接口或新无线侧 网元与原数据分流功能实体之间存在接口, 则认为本地 IP访问连接具有移 动性。
其中 L-SGW、 L-GW, 数据分流功能实体、 无线侧网元的标识信息可 以是地址信息, 也可以是具体的标识。
步驟 1004a、 根据步骤 1003的判断结果, 若本地 IP访问连接具有移动 性, 则新无线侧网元需要发起本地 IP访问连接的资源预留。
这里, 若用户同时存在核心网连接, 则无论是否具有移动性, 都需要 发起核心网连接的资源预留。 即无论是否具有移动性, 都不影响核心网络 连接的正常资源预留过程。
新无线侧网元执行资源预留过程, 给原无线侧网元发送切换请求确认 消息
步骤 1005a、 继续完成后续的切换过程。
步骤 1004b, 根据步骤 1003的判断结果, 若本地 IP访问连接不具有移 动性, 则移动性管理实体需要发起本地 IP访问连接释放流程, 此时不预留 本地 IP访问连接的资源。 若用户同时存在核心网连接, 则无论是否具有移 动性, 都需要发起核心网连接的资源预留流程。 即无论是否具有移动性, 都不影响核心网络连接的正常预留流程。
新无线侧实体向原无线侧实体发送切换请求确认消息, 携带预留成功 的资源信息。
步骤 1005b、 当终端只存在本地 IP访问连接时, 原无线侧网元需要给 终端发送 RRC消息, 消息中指示切换失败。 当终端存在核心网连接时, 原 无线侧网元需要给终端发送切换命令消息, 指示终端发起切换, 此时终端 会给新无线侧实体发送切换证实消息告知目标无线侧网元空口同步成。
步骤 1006b、 新无线侧网元向移动性管理实体发送路径交换请求消息。 消息中携带未成功预留的本地 IP访问连接的资源或者特定的原因值指示本 地 IP访问连接切换失败的指示。 移动性管理实体根据切换确认消息中的原 因值判断需要释放本地 IP访问连接; 或者移动性管理实体根据切换确认消 息中未成功预留本地 IP访问连接的资源来判断需要释放本地 IP访问连接。
步骤 1008b、 移动性管理实体通过承载释放过程将用户原有的本地 IP 访问连接释放。
本发明的上述实施例都是应用于本地 IP访问连接的, 不影响核心网连 接。 当用户进行业务请求或跟踪区更新或路由区更新或切换时, 核心网连 接按照现有技术处理。
为了筒化描述, 以上实施例仅以不存在家用基站网关且本地网关位于 无线侧实体或其附近的情况为例来说明对本地 IP访问连接支持移动性的方 法。 存在家用基站网关的情况与之类似。 当然, 存在家用基站网关, 且本 地网关位于无线侧实体或其附近时, 移动性管理实体与无线侧实体之间的 消息和移动性管理实体与本地网关之间的消息将经由家用基站网关传递。 当存在家用基站网关, 且本地网关位于家用基站网关或其附近时, 移动性 管理实体与无线侧实体之间的消息将经由家用基站网关传递, 而移动性管 理实体与与本地网关之间的消息不再需要家用基站网关转发, 消息中新增 携带的无线侧网元标识信息此时需要有家用基站网关的标识信息来取代。 在这些情况下 ,本地 IP访问连接移动性支持的方式与上述实施例极为相似, 不会对阐述本发明造成影响, 故在此不再重复描述。
以上实施例不仅可以应用与家用基站系统, 也同样适用与宏基站系统。 在上述实施例中无线侧实体可以是基站、 家用基站。 移动性管理实体可以 为 MME、 MSC、 SGSN。 本地网关可以是 L-SGW、 L-PGW、 L-GGSN、 外 置的 L-GW、 数据分流功能实体。 核心网接入网关可以是 S-GW、 SGSN。
本地 IP 访问的无线侧网元 /家用基站网关可以与本地接入网关地址相 同。
这里需要指出的是, 本文中涉及到的本地 IP访问可以指 LIPA,其全称 以 Local IP Access表示, 但不限制于这个特定的唯一称谓, 本地 IP访问还 可以包括以下之一:本地 IP访问用户本地网络、本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网或公司或家庭业务的分流操作, 特定 IP数据分 流, 以下不做赞述。
需要指出的是, 以上涉及到的本地网关包括: 本地接入网关、 本地服 务网关。
一种本地 IP访问连接移动性支持的系统, 该系统包括: 判断单元和移 动性处理单元。 其中, 判断单元, 用于新无线侧网元 /新家用基站网关判断 本地 IP连接是否具有移动性; 其中, 判断具体包括: 通过将新无线侧网元 / 新家用基站网关自身配置或来自 HMS下发的网元信息,与获得的网元信息 进行比较来实现判断。 移动性处理单元, 用于根据判断结果, 支持对本地 IP访问连接的相对应的移动性处理。
这里, 获得的网元信息具体包括: 新无线侧网元 /新家用基站网关从移 动性管理实体、 或原无线侧网元获得的网元信息。
这里, 判断单元, 进一步用于新无线侧网元 /新家用基站网关接收到来 自移动性管理实体的消息, 解析出该消息中携带的原本地网关 /原无线侧网 元 /原家用基站网关的标识信息, 以及可选的本地 IP 访问连接的指示信息 后, 明确需执行本地 IP访问连接是否具有移动性的判断; 通过将新本地网 关 /新无线侧网元 /新家用基站网关的标识信息,与原本地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新本地网关 /新无线侧网元 / 新家用基站网关, 与原本地网关 /原无线侧网元 /原家用基站网关之间是否存 在接口, 并完成本地 IP访问连接是否具有移动性的判断。
这里, 移动性处理单元有两种具体实现, 第一种具体实现: 移动性处 理单元进一步用于当判断出本地 IP访问连接具有移动性时,执行激活处理; 其中, 激活处理具体包括: 移动性管理实体激活本地 IP访问连接。 第二种 具体实现: 移动性处理单元进一步用于当判断出本地 IP访问连接不具有移 动性时, 执行释放处理; 其中, 释放处理具体包括: 新无线侧网元 /新家用 基站网关指示移动性管理实体释放当前本地 IP访问连接, 该指示可以是显 示的指示, 也可以是移动性管理实体根据新无线侧网元 /新家用基站网关返 回的消息内容来进行隐示的判断。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
Claims
1、 一种本地网际协议访问连接移动性支持的方法, 其特征在于, 该方 法包括: 新无线侧网元 /新家用基站网关判断本地网际协议( IP )连接是否 具有移动性; 根据判断结果, 支持对本地 IP访问连接的相对应的移动性处 理; 其中,
所述判断包括: 通过将新无线侧网元 /新家用基站网关自身配置或家庭 基站管理系统(HMS ) 下发的网元信息, 与获得的网元信息进行比较来实 现所述判断。
2、 根据权利要求 1所述的方法, 其特征在于, 所述获得的网元信息包 括: 新无线侧网元 /新家用基站网关从移动性管理实体、 或从原无线侧网元 获得的网元信息。
3、 根据权利要求 2所述的方法, 其特征在于, 所述新无线侧网元 /新家 用基站网关自身配置或 HMS 下发的网元信息为: 新无线侧网元 /新家用基 站网关当前能连接的网元信息; 其中, 所述网元信息包括: 新本地网关 /新 无线侧网元 /新家用基站网关所能连接的本地网关 /无线侧网元 /家用基站网 关的标识信息;
所述从移动性管理实体 /原无线侧网元获得的网元信息包括:本地 IP连 接的原本地网关 /原无线侧网元 /原家用基站网关的标识信息, 以及可选的本 地 IP访问连接的指示信息。
4、 根据权利要求 3所述的方法, 其特征在于, 实现所述判断进一步包 括:
所述新无线侧网元 /新家用基站网关接收到来自所述移动性管理实体的 消息,解析出所述消息中携带的所述本地 IP连接的原本地网关 /原无线侧网 元 /原家用基站网关的标识信息, 或所述本地 IP访问连接的指示信息后, 明 确需执行本地 IP访问连接是否具有移动性的判断; 通过将所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本 地网关 /无线侧网元 /家用基站网关的标识信息, 与所述本地 IP 连接的原本 地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新无线 侧网元 /新家用基站网关, 与本地 IP连接的原本地网关 /原无线侧网元 /原家 用基站网关之间是否存在接口, 并完成本地 IP访问连接是否具有移动性的 判断。
5、 根据权利要求 4所述的方法, 其特征在于, 当判断结果为: 本地 IP 访问连接具有移动性时, 所述移动性处理为激活处理; 所述激活处理包括: 移动性管理实体激活本地 IP访问连接。
6、 根据权利要求 4所述的方法, 其特征在于, 当判断结果为: 本地 IP 访问连接不具有移动性时, 所述移动性处理为释放处理; 所述幹放处理包 括:新无线侧网元 /新家用基站网关指示移动性管理实体释放当前本地 IP访 问连接。
7、 根据权利要求 4所述的方法, 其特征在于, 在移动性管理实体变化 的场景下, 该方法进一步包括: 原移动性管理实体将本地 IP访问连接的原 本地网关 /原无线侧网元的标识信息,以及可选的本地 IP访问连接的指示信 息传递给新移动性管理实体。
8、 根据权利要求 4所述的方法, 其特征在于, 在移动性管理实体变化 的场景下, 该方法进一步包括: 新无线侧网元将新本地网关 /新无线侧网元 / 新家用基站网关的标识信息传递给新移动性管理实体。
9、 根据权利要求 1至 8中任一项所述的方法, 其特征在于, 所述新本 地网关 /原本地网关的标识信息包括: 新本地网关 /原本地网关的地址信息、 或者用于标识新本地网关 /原本地网关身份的专用标识信息;
所述新无线侧网元 /原无线侧网元的标识信息包括: 新无线侧网元 /原无 线侧网元的地址信息、 或者用于标识新无线侧网元 /原无线侧网元身份的专 用标识信息;
所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本地网关 / 无线侧网元 /家用基站网关的标识信息包括:本地网关 /无线侧网元 /家用基站 网关的地址信息、 或者用于标识本地网关 /无线侧网元 /家用基站网关身份的 专用标识信息。
10、 根据权利要求 1至 8中任一项所述的方法, 其特征在于, 所述新 无线侧网元 /原无线侧网元包括: 基站、 家用基站、或无线网络控制器 RNC。
11、 根据权利要求 1至 8中任一项所述的方法, 其特征在于, 所述新 移动性管理实体 /原移动性管理实体包括: 移动管理单元(MME ) 、 移动交 换中心 (MSC ) 、 服务通用无线分组业务支持节点 (SGSN ) 。
12、 根据权利要求 1至 8中任一项所述的方法, 其特征在于, 所述新 本地网关 /原本地网关包括: 本地服务网关 (L-SGW ) 、 本地分组数据网络 网关(L-PGW ) 、 本地网关通用无线分组业务支持节点(L-GGSN ) 、 或外 置的本地网关 (L-GW ) 、 或数据分流功能实体;
核心网的接入网关包括: 服务网关 (SGW ) 、 或 SGSN。
13、 一种本地网际协议访问连接移动性支持的系统, 其特征在于, 该 系统包括: 判断单元和移动性处理单元; 其中,
判断单元,用于新无线侧网元 /新家用基站网关判断本地 IP连接是否具 有移动性; 其中, 所述判断包括: 通过将新无线侧网元 /新家用基站网关自 身配置或 HMS下发的网元信息,与获得的网元信息进行比较来实现所述判 断;
移动性处理单元, 用于根据判断结果, 支持对本地 IP访问连接的相对 应的移动性处理。
14、 根据权利要求 13所述的系统, 其特征在于, 所述获得的网元信息 包括: 新无线侧网元 /新家用基站网关从移动性管理实体、 或原无线侧网元 获得的网元信息。
15、 根据权利要求 13所述的系统, 其特征在于, 所述判断单元, 进一 步用于所述新无线侧网元 /新家用基站网关接收到来自所述移动性管理实体 /原无线侧网元的消息,解析出所述消息中携带的所述本地 IP访问连接的原 本地网关 /原无线侧网元 /原家用基站网关的标识信息, 以及可选的本地 IP 访问连接的指示信息后, 明确需执行本地 IP访问连接是否具有移动性的判 断;
通过将所述新本地网关 /新无线侧网元 /新家用基站网关所能连接的本 地网关 /无线侧网元 /家用基站网关的标识信息, 与所述本地 IP访问连接的 原本地网关 /原无线侧网元 /原家用基站网关的标识信息进行比较, 来判断新 无线侧网元 /新家用基站网关, 与本地 IP访问连接的原本地网关 /原无线侧 网元 /原家用基站网关之间是否存在接口,并完成本地 IP访问连接是否具有 移动性的判断。
16、根据权利要求 15所述的系统, 其特征在于, 所述移动性处理单元, 进一步用于当判断出本地 IP访问连接具有移动性时,执行激活处理; 其中, 所述激活处理包括: 移动性管理实体激活本地 IP访问连接。
17、根据权利要求 15所述的系统, 其特征在于, 所述移动性处理单元, 进一步用于当判断出本地 IP访问连接不具有移动性时, 执行释放处理; 其 中, 所述释放处理包括: 新无线侧网元 /新家用基站网关指示移动性管理实 体释放当前本地 IP访问连接。
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| CN200910092369.9A CN102014369B (zh) | 2009-09-07 | 2009-09-07 | 一种本地网际协议访问连接移动性支持的方法及系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9237487B2 (en) | 2011-06-28 | 2016-01-12 | Kyocera Corporation | Communication control method and home base station |
| US9363726B2 (en) | 2011-06-28 | 2016-06-07 | Kyocera Corporation | Mobility of LIPA connection from home base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102742305B (zh) * | 2010-12-22 | 2015-09-09 | 华为技术有限公司 | 本地互联网协议接入公用数据网移动性管理处理方法、装置和网络系统 |
| CN102781055B (zh) * | 2011-05-11 | 2017-04-12 | 华为技术有限公司 | 数据传输的方法、无线接入网设备和通信系统 |
| CN102843727A (zh) * | 2011-06-24 | 2012-12-26 | 中兴通讯股份有限公司 | Ip分流连接处理方法、装置及系统 |
| WO2012174981A1 (zh) * | 2011-06-24 | 2012-12-27 | 中兴通讯股份有限公司 | Ip分流连接的处理方法及装置 |
| CN103096401B (zh) | 2011-10-31 | 2016-06-22 | 华为技术有限公司 | 切换承载的方法、家庭基站网关和家庭基站 |
| CN106900015B (zh) * | 2015-12-18 | 2021-02-12 | 中兴通讯股份有限公司 | 一种跨基站切换过程中重建立的处理方法和装置 |
| CN107277866B (zh) * | 2016-04-07 | 2020-06-19 | 中国移动通信有限公司研究院 | 一种数据业务切换方法、装置、基站和系统 |
| CN107342979A (zh) * | 2017-06-02 | 2017-11-10 | 华为技术有限公司 | 处理封包的方法和终端设备 |
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| CN1354956A (zh) * | 1999-06-07 | 2002-06-19 | 诺基亚公司 | 接入网中的移动性代理选择 |
| CN101043714A (zh) * | 2006-03-21 | 2007-09-26 | 华为技术有限公司 | 实现用户设备的移动性管理的方法及系统 |
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| CN1354956A (zh) * | 1999-06-07 | 2002-06-19 | 诺基亚公司 | 接入网中的移动性代理选择 |
| CN101043714A (zh) * | 2006-03-21 | 2007-09-26 | 华为技术有限公司 | 实现用户设备的移动性管理的方法及系统 |
| US20080279151A1 (en) * | 2007-05-09 | 2008-11-13 | Nokia Siemens Networks Gmbh & Co. Kg | Method and device for processing data and communication system comprising such device |
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| US9237487B2 (en) | 2011-06-28 | 2016-01-12 | Kyocera Corporation | Communication control method and home base station |
| US9363726B2 (en) | 2011-06-28 | 2016-06-07 | Kyocera Corporation | Mobility of LIPA connection from home base station |
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| CN102014369A (zh) | 2011-04-13 |
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