WO2013189217A1 - 分组网关标识信息的更新方法、aaa服务器和分组网关 - Google Patents

分组网关标识信息的更新方法、aaa服务器和分组网关 Download PDF

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Publication number
WO2013189217A1
WO2013189217A1 PCT/CN2013/075546 CN2013075546W WO2013189217A1 WO 2013189217 A1 WO2013189217 A1 WO 2013189217A1 CN 2013075546 W CN2013075546 W CN 2013075546W WO 2013189217 A1 WO2013189217 A1 WO 2013189217A1
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WIPO (PCT)
Prior art keywords
capability indication
indication information
information
packet gateway
network element
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PCT/CN2013/075546
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English (en)
French (fr)
Inventor
刘国燕
朱春晖
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP13807379.6A priority Critical patent/EP2858418B1/en
Priority to US14/408,311 priority patent/US9560048B2/en
Publication of WO2013189217A1 publication Critical patent/WO2013189217A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24Transfer of terminal data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/02Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0281Proxies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06Authentication
    • H04W12/069Authentication using certificates or pre-shared keys
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/16Implementing security features at a particular protocol layer
    • H04L63/162Implementing security features at a particular protocol layer at the data link layer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/02Inter-networking arrangements

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method for updating packet identification information, a method for transmitting information, an authentication, authorization, and accounting (AAA) server, and a trusted non-3GPP access network element. And grouping gateways. Background technique
  • the Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3GPP) is evolved by Evolved Universal Terrestrial Radio Access Network (E-UTRAN), mobile management.
  • Mobility Management Entity (MME) Mobility Management Entity (MME), Serving Gateway (S-GW), Packet Data Network Gateway (PDN GW, also known as P-GW), and Home Subscriber Server (HSS) composition.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • EPS supports interworking with non-3GPP systems. As shown in Figure 1, interworking with non-3GPP systems is implemented through the S2a/b/c interface, and the PDN GW acts as an anchor between the 3GPP system and the non-3GPP system.
  • non-3GPP system access is divided into untrusted non-3GPP access and trusted non-3GPP access; wherein, untrusted non-3GPP access requires evolved packet data gateway (Evolved Packet Data Gateway) , ePDG) is connected to the PDN GW, the interface between the ePDG and the PDN GW is S2b; the trusted non-3GPP access can be directly connected to the PDN GW through the S2a interface, and the S2a interface uses the Proxy Mobile Internet Protocol (PMIP) The information exchange is performed.
  • PMIP Proxy Mobile Internet Protocol
  • the S2c interface provides user plane related control and mobility support between the User Equipment (UE) and the PDN GW, and the supported mobility management protocol is a mobile IPv6 supporting dual stack.
  • UE User Equipment
  • PDN GW Packet Data Network Gateway
  • the supported mobility management protocol is a mobile IPv6 supporting dual stack.
  • DSMIPv6 Mobile IPv6 Support for Dual Stack Hosts and Routers, DSMIPv6
  • the Wireless Local Area Network can be used as a non-3GPP system to access the evolved Evolved Packet Core (EPC), which involves the interconnection and interworking of fixed-line mobile convergence that many operators pay attention to.
  • EPC evolved Evolved Packet Core
  • S2a Mobility based On GTP & WLAN access to EPC SaMOG is mainly to study WLAN as a Trusted Non-3GPP IP Access Network (TNAN), and the UE passes the S2a interface.
  • TNAN Trusted Non-3GPP IP Access Network
  • Manner 1 After the UE completes the non-3GPP-specific process and the Extensible Authentication Protocol (EAP) authentication process, the layer 3 (L3) message is executed between the UE and the TNAN network element, and then the TNAN receives the L3 message. , initiate a tunnel establishment process to the PDN GW of the mobile core network.
  • EAP Extensible Authentication Protocol
  • L2 (L2) messages can also be used as a triggering method, such as EAP messages.
  • EAP messages After the UE completes the non-3GPP-specific process and the EAP authentication process, after receiving the EAP authentication success message, the TNAN initiates a tunnel establishment process to the PDN GW of the mobile core network.
  • the research program of the SaMOG project is mainly divided into a scheme that has no impact on the UE and a scheme that affects the UE.
  • the scheme that has no effect on the UE means that the UE does not support the transmission of Access Point Name (APN) information, an additional Packet Data Network (PDN) connection, and a handover procedure between access systems.
  • APN Access Point Name
  • PDN Packet Data Network
  • the above UE corresponds to the UE before Release 11 (R11) in the 3GPP standard, hereinafter referred to as R11 UE; and the scheme that affects the UE refers to the UE supporting the delivery of APN information, additional PDN connection, and access system.
  • the above UE corresponds to the UE of Release 12 (R12) in the 3GPP standard, which is hereinafter referred to as the R12 UE.
  • R12 UE the UE of Release 12
  • the specific implementation of the UE to seamlessly switch between access systems is ensured.
  • the PDN GW needs to update the PDN GW identity to the HSS; then, when the UE is handed over, the target access system of the handover is from the HSS Get the previously saved PDN GW ID.
  • the HSS updates the PDN GW identity to the non-3GPP network element to the MME or through the AAA server.
  • the UE does not support the handover process, it can be the same
  • the 3GPP core network is accessed independently through the WLAN access system and the 3GPP access system; and the UE may use the same APN, but may access different PDN GWs.
  • the PDN GW does not receive the handover indication of the UE, and considers that the two different accesses are the first access of the UE, and when the UE first accesses through the WLAN access system, the PDN GW will go to the HSS. Update the PDN GW identity; then, when the UE accesses through the 3GPP access system, the PDN GW will update the PDN GW identity to the HSS again.
  • the new PDN GW identity will overwrite the previously saved PDN GW identity; and, HSS It is found that the UE transmits the updated PDN GW identifier to the access gateway of the WLAN through the AAA server based on the change of the PDN GW identifier selected by the same APN, and the WLAN network process is abnormal; otherwise, the UE first connects through the 3GPP access system.
  • the HSS discovers that the UE changes the PDN GW identity selected by the same APN, and sends a changed PDN GW identifier to the MME, which in turn causes the 3GPP network process to be abnormal.
  • the Universal Mobile Telecommunications System also supports interworking with non-3GPP systems; the difference is that the Serving General Packet Radio Service Support Node (SGSN) is replaced by the Serving General Packet Radio Service Support Node (SGSN).
  • SGSN Serving General Packet Radio Service Support Node
  • SGSN Serving General Packet Radio Service Support Node
  • the MME and the S-GW replace the P-GW with a Gateway General Packet Radio Service Support Node (GGSN).
  • GGSN Gateway General Packet Radio Service Support Node
  • the embodiment of the invention provides a method for updating packet identification information, a method for transmitting information, an authentication and authorization accounting (AAA) server, a trusted non-3GPP access network element and a packet gateway, to solve the problem that the UE simultaneously passes 3GPP. Network anomalies caused by systems and non-3GPP systems accessing the mobile core network.
  • AAA authentication and authorization accounting
  • An embodiment of the present invention provides a method for updating packet identification information, including: a message that a decision network element receives a user equipment (UE) capability indication information sent by an information delivery network element; The determining network element determines whether to update the identifier information of the packet gateway according to the UE capability indication information and/or local information carried in the message.
  • UE user equipment
  • the UE capability indication information is difference information of a different version of the UE, or requested access point name (APN) information, or a request type, or a service type requested by the UE, or a packet data network (PDN) type.
  • API access point name
  • PDN packet data network
  • the step of receiving, by the determining network element, the message carrying the UE capability indication information sent by the information delivery network element includes:
  • An authentication and authorization charging (AAA) server receives an extended authentication protocol (EAP) authentication message that is sent by a trusted non-3GPP access network (TNAN) network element and carries the UE capability indication information; or
  • EAP extended authentication protocol
  • TNAN trusted non-3GPP access network
  • the AAA server receives an update packet gateway address message that is sent by the packet gateway and carries the UE capability indication information, where the packet gateway sends a session request message or a proxy binding update message from the TNAN network element. Obtaining the UE capability indication information; or the packet gateway receives the creation session request message or the proxy binding update message that is sent by the TNAN network element and carries the UE capability indication information.
  • the packet gateway is a packet data network gateway (P-GW) or a gateway general packet radio service support node (GGSN).
  • P-GW packet data network gateway
  • GGSN gateway general packet radio service support node
  • the step of determining, by the determining network element, whether to update the identifier information of the packet gateway according to the UE capability indication information and/or local information carried in the message includes:
  • the AAA server determines, according to the UE capability indication information and/or local information, that the current UE is an R12 UE and is in a handover procedure, the P-GW or the GGSN address is not updated to the Home Subscriber Server (HSS). ;
  • the AAA server determines, according to the UE capability indication information and/or local information, that the current UE is an R12 UE and is the first access, updating the address of the P-GW or the GGSN to the HSS; or
  • the step of determining, by the decision network element, whether to update the identifier information of the packet gateway according to the UE capability indication information and/or local information carried in the message includes:
  • the packet gateway determines, according to the UE capability indication information and/or the local information, that the current UE is an R12 UE and is in a handover procedure, updating the address of the packet gateway to the HSS or the AAA server;
  • the packet gateway determines that the current UE is an R12 UE and is the first access according to the UE capability indication information and/or local information, updating an address of the packet gateway to the HSS or the AAA server;
  • the packet gateway determines that the current UE is an R1 1 UE according to the UE capability indication information and/or local information, the address of the packet gateway is not updated to the HSS or the AAA server.
  • the method further includes:
  • the AAA server sends the UE capability indication information to the HSS.
  • the embodiment of the invention further provides a method for sending information, including:
  • the information delivery network element obtains user equipment (UE) capability indication information
  • the information delivery network element sends a message carrying the UE capability indication information to the decision network element.
  • the UE capability indication information is difference information of different versions of UEs, or requested access point name (APN) information, or a request type, or a service type requested by the UE, or a packet data network (PDN) type.
  • API access point name
  • PDN packet data network
  • the step of the information delivery network element sending the message carrying the UE capability indication information to the decision network element includes:
  • the trusted non-3GPP access network (TNAN) network element sends an extended authentication protocol (EAP) authentication message carrying the UE capability indication information to the authentication and authorization charging (AAA) server; or the TNAN network element to the packet gateway Sending a create session request message or a proxy binding update message carrying the UE capability indication information.
  • EAP extended authentication protocol
  • AAA authentication and authorization charging
  • the packet gateway is a packet data network gateway (P-GW) or a gateway general grouping.
  • P-GW packet data network gateway
  • GGSN Line Service Support Node
  • the method further includes: the packet gateway to the AAA server And sending an updated packet gateway address message carrying the UE capability indication information.
  • An embodiment of the present invention further provides an authentication and authorization accounting (AAA) server, including: a receiving module, configured to: receive a capability of carrying a user equipment (UE) sent by a trusted non-3GPP access network (TNAN) network element An extended authentication protocol (EAP) authentication message indicating information; or receiving an update packet gateway address message that is sent by the packet gateway and carrying the UE capability indication information;
  • AAA authentication and authorization accounting
  • a decision module configured to: determine, according to the UE capability indication information and/or the local information, whether the identifier information of the packet gateway is updated.
  • the determining module is configured to: when determining that the current UE is an R12 UE according to the UE capability indication information and/or local information, and is in a handover process, updating the packet data network to a home subscriber server (HSS) a gateway (P-GW) or a gateway general packet radio service support node (GGSN) address; determining a current UE address according to the UE capability indication information and/or local information; when according to the UE capability indication information and/or local The information is determined that the current UE is the R1 l UE.
  • the embodiment of the present invention further provides a packet gateway, including:
  • a receiving module configured to: receive a create session request message or a proxy binding update message that carries a user equipment (UE) capability indication information sent by a trusted non-3GPP access network (TNAN) network element;
  • UE user equipment
  • TNAN trusted non-3GPP access network
  • a decision module configured to: determine, according to the UE capability indication information and/or the local information, whether the identifier information of the packet gateway is updated.
  • the decision module is configured to:
  • the user When it is determined that the current UE is an R12 UE according to the UE capability indication information and/or the local information, and is in a handover procedure, the user is not served to the Home Subscriber Server (HSS) or the Authentication Authorization Accounting (AAA). Updating the address of the packet gateway;
  • HSS Home Subscriber Server
  • AAA Authentication Authorization Accounting
  • the address of the packet gateway is not updated to the HSS or the AAA server.
  • the packet gateway further includes:
  • a sending module configured to: send, to the AAA server, an updated packet gateway address message that carries the UE capability indication information.
  • the packet gateway is a packet data network gateway (P-GW) or a gateway general packet radio service support node (GGSN).
  • P-GW packet data network gateway
  • GGSN gateway general packet radio service support node
  • the embodiment of the present invention further provides a trusted non-3GPP access network (TNAN) network element, including:
  • Obtaining a module configured to: obtain user equipment (UE) capability indication information; and a sending module, configured to: send an extended authentication protocol (EAP) authentication carrying the UE capability indication information to an authentication and authorization charging (AAA) server Or sending a create session request message or a proxy binding update message carrying the UE capability indication information to the packet gateway.
  • EAP extended authentication protocol
  • AAA authentication and authorization charging
  • the R1 1 UE and the R12 UE can be distinguished, and the R1 1 UE and the R12 UE are both supported to access the 3GPP core network through the 3GPP access system and the non-3GPP access system.
  • 1 is a network structure diagram of interworking between a 3GPP network and a non-3GPP network in the related art.
  • FIG. 2 is a signaling flowchart of a UE accessing an EPC through a trusted WLAN in the related art.
  • FIG. 3 is a signaling flowchart of updating identifier information of a packet gateway according to Embodiment 1 of the present invention.
  • FIG. 4 is a signaling flowchart of updating identifier information of a packet gateway according to Embodiment 2 of the present invention.
  • FIG. 5 is a signaling flowchart of updating identifier information of a packet gateway according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of an AAA server according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a packet gateway according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a TNAN network element according to an embodiment of the present invention. Preferred embodiment of the invention
  • An embodiment of the present invention provides a method for updating packet identification information, where the method is applicable to a UE accessing a 3GPP mobile core network through a non-3GPP system, and the method is described from a decision network element side, and the method includes the following steps.
  • Step 11 The decision network element receives the message carrying the UE capability indication information sent by the information delivery network element.
  • the foregoing decision network element may be an AAA server, a PDN GW, or a GGSN, and the information delivery network element may be a TNAN or a PDN GW; the foregoing UE capability indication information is different information of different versions of the UE, or the requested access point name (APN) information. Or, the request type, or the type of service requested by the UE, or the packet data network (PDN) type.
  • APN access point name
  • PDN packet data network
  • Step 12 The decision network element determines whether to update the identifier information of the packet gateway according to the UE capability indication information and/or the local information carried in the message.
  • the embodiment of the present invention further provides an information sending method, which is described from the information transmission network element side, and the method includes the following steps.
  • Step 21 The information delivery network element obtains UE capability indication information.
  • Step 22 The information delivery network element sends a message carrying the UE capability indication information to the decision network element.
  • the step 22 includes: the trusted non-3GPP access network (TNAN) network element sends an EAP authentication message carrying the UE capability indication information to the authentication and authorization charging (AAA) server; or the TNAN network element to the packet gateway Sending a create session request message or a proxy binding update message carrying the UE capability indication information, where the packet gateway is a packet data network gateway (P-GW) or Gateway General Packet Radio Service Support Node (GGSN); or the packet gateway sends a message to the Authentication and Authorization Accounting (AAA) server that carries the updated packet gateway address of the UE capability indication information.
  • P-GW packet data network gateway
  • GGSN Gateway General Packet Radio Service Support Node
  • AAA Authentication and Authorization Accounting
  • the TNAN network element can be a TNAN gateway.
  • the following describes how the PDN GW and the AAA server obtain the UE capability indication information from the perspective of the interaction between the decision network element and the information delivery network element, and describe whether to update the PDN GW identifier according to the information.
  • the trusted non-3GPP access gateway transmits the UE capability indication information to the AAA server through the EAP authentication message; the application scenario is: Rl l The UE and the R12 UE access the EPC through the WLAN access system.
  • the AAA server decides whether to perform the PDN GW identity update operation. For details, refer to the process shown in Figure 3. The process includes the following steps.
  • Step 301 The UE may have accessed the 3GPP EPC through the 3GPP access system; the UE and the trusted non-3GPP access gateway network element perform non-3GPP specific processes, such as link establishment, access authentication, and the like.
  • Steps 302-304 The trusted non-3GPP access gateway acts as an EAP authenticator, and triggers an EAP authentication process to the UE. If the AAA server decides whether to update the PDN GW identifier, the AAA server needs to obtain the UE capability indication information. Therefore, the trusted non-3GPP access gateway can obtain the UE capability indication information, and the UE capability indication information can pass the requested APN information. Or, the request type, or the service type requested by the UE, or the PDN type, implicitly indicates its capability.
  • the UE For example, if the TNAN receives any of the foregoing information transmitted by the UE, the UE is an R12 UE; if the TNAN does not receive the UE If any of the above information is delivered, the UE is an R1 1 UE.
  • the UE displays an indication indicating that the R1 l UE (the process of transmitting the APN and the handover is not supported) and the R12 UE (the process of supporting the delivery of the APN and the handover), for example, the R1 l UE or the R12 UE, to explicitly Express its ability.
  • the TNAN After obtaining the capability indication information of the UE, the TNAN provides a negotiated UE capability indication information according to the local capability, for example, if the UE supports the process of transmitting the APN and the handover, but the TNAN If the process of receiving the APN and the additional PDN connection, handover, etc.
  • the negotiated UE capability indication information is indicated as not supporting the process of receiving the APN and the additional PDN connection, handover, etc.; if the UE does not support the delivery of the APN and the additional PDN connection If the TNAN supports the process of receiving the APN and the additional PDN connection, handover, etc., the negotiated UE capability indication information is indicated as not supporting the process of receiving the APN and the additional PDN connection, handover, and the like.
  • the specific definition is the same as the previous UE capability indication information, and is delivered to the 3GPP AAA server through the EAP authentication message.
  • the request type includes an attachment type or a handover type, and the service type requested by the UE is a service offload or an access EPC.
  • the UE carries the UE capability indication information to the trusted non-3GPP access gateway in the EAP Request/Establishment ( Identity) message, and the trusted non-3GPP access gateway may according to the capability indication information carried by the UE and The local policy determines whether the UE is allowed to switch, and gives the negotiated UE capability indication information.
  • Identity EAP Request/Establishment
  • the trusted non-3GPP access gateway transmits the UE capability indication information it supports to the UE through the EAP-REQ/Identity message, and the UE according to its own capability indication information and the UE capability supported by the trusted non-3GPP access gateway. Instructing information, determining whether to perform UE handover, and giving the negotiated UE capability indication information, and the specific representation method is the same as above. Then, the UE capability indication information is carried in the EAP-RES/Identity message to the trusted non-3GPP access gateway.
  • the trusted non-3GPP access gateway then encapsulates the EAP-RES/Identity message in a Diameter/Remote User Dial-In Authentication Service (RIRUS) message and passes it to the AAA server.
  • the negotiated UE capability indication information may be included in a Diameter/Radius message or an EAP-RES/Identity message in a Diameter/Radius message.
  • Step 305 Perform Authentication/Key Agreement (AKA') between the UE and the AAA server to identify the request/response operation.
  • AKA' Authentication/Key Agreement
  • Steps 306-307 The AAA server requests the HSS for parameters and subscription information required for EAP authentication.
  • the message returned by the HSS to the AAA server may include: the PDN GW address associated with the APN and related information selected by the APN and PDN GW.
  • the AAA server may transmit the negotiated UE capability indication information to the HSS, HSS.
  • the following operations can be performed based on this information and/or other local information.
  • the PDN GW address associated with the APN is not stored in the HSS, the related information selected by the APN and the PDN GW is returned to the AAA server; otherwise, the PDN GW address associated with the APN is returned.
  • the PDN GW address selected when the 3GPP access system was previously connected is not sent to the AAA server, but the related information selected by the APN and the PDN GW is returned to the AAA server.
  • the trusted non-3GPP access gateway selects the PDN GW
  • the message returned by the HSS includes: the PDN GW address associated with the APN and the related information selected by the APN and the PDN GW, it is determined according to the negotiated UE capability indication information. Whether the PDN GW address associated with the APN is used, or the new PDN GW address is selected by the Domain Name Server (DNS); if the message returned by the HSS includes only the PDN GW address associated with the APN, or only the APN and the PDN are included.
  • DNS Domain Name Server
  • the relevant information selected by the GW indicates that the HSS has made a corresponding decision according to the capability indication information of the UE, and the trusted non-3GPP access gateway does not need further decision.
  • Steps 308-310, the UE and the AAA server complete other processes of the EAP.
  • Manner 1 The EAP authentication success message triggers a trusted non-3GPP access gateway to establish a session with the PDN GW.
  • Step 311 After receiving the message that the EAP authentication succeeds, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW.
  • Step 312 The PDN GW and the Policy and Charging Rules Function (PCRF) entity perform an IP Connectivity Access Network (IP-CAN) session establishment operation.
  • PCRF Policy and Charging Rules Function
  • Step 313 The PDN GW updates the PDN GW address to the HSS through the AAA server. After receiving the updated PDN GW address message sent by the PDN GW, the AAA server decides whether to perform the update to the HSS according to the negotiated UE capability indication information and/or local information. The operation of the PDN GW address. The specific operation is described below.
  • the PDN GW is not updated to the HSS. If the UE is an R12 UE and is in the first access procedure, the PDN GW address is updated to the HSS, that is, step 313 is performed.
  • the PDN GW address is not updated to the HSS.
  • Step 314 The PDN GW sends a create session response or proxy binding acknowledgement message to the trusted non-3GPP access gateway.
  • Step 315 The non-3GPP access gateway sends an EAP authentication success message to the UE.
  • Step 316 If the step 313 is performed, and the PDN associated with the APN has been saved in the HSS, but the updated PDN GW address is different from the step 313, the step is performed, and the HSS performs the MME that previously established the connection with the HSS. Update the operation of the PDN GW identity.
  • Manner 2 The trusted non-3GPP access gateway is triggered by the IP address request message to establish a session with the PDN GW.
  • Step 317 After receiving the IP address request message, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes the negotiated UE capability indication information.
  • Steps 318-321 Same as step 312-316, except step 315.
  • the SGSN replaces the MME in this embodiment, and the GGSN replaces the PDN GW in this embodiment, and the functions to be enhanced are the same.
  • the trusted non-3GPP access gateway transmits the UE capability indication information to the AAA server through the EAP authentication message; the application scenario is: Rl l The UE and the R12 UE access the EPC through the WLAN access system.
  • the PDN GW decides whether to perform the PDN GW identity update operation. For details, refer to the process shown in Figure 4. The process includes the following steps.
  • Step 401 The UE may have accessed the 3GPP EPC through the 3GPP access system.
  • the UE performs a non-3GPP-specific process with the trusted non-3GPP access gateway network element, for example, link establishment and access Certification, etc.
  • Steps 402-404 The trusted non-3GPP access gateway acts as an EAP authenticator, and triggers an EAP authentication process to the UE.
  • the trusted non-3GPP access gateway then encapsulates the EAP-RES/Identity message in a Diameter/Radius message and passes it to the AAA server.
  • the TNAN After obtaining the capability indication information of the UE, the TNAN provides a negotiated UE capability indication information according to the local capability, specifically, a description of the R1 1 UE (the process of not supporting the delivery of the APN and the additional PDN connection, handover, etc.) and the R12 UE. (Support for the process of passing APN and additional PDN connections, handovers, etc.) Different indications, such as R11 UE or R12 UE, explicitly indicate their capabilities.
  • Step 405 Perform a ⁇ ' identification request/response operation between the UE and the AAA server.
  • Steps 406-407 The AAA server requests the HSS for parameters and subscription information required for EAP authentication, and the message returned by the HSS to the AAA server, the message may include: the PDN GW address associated with the APN (if the UE has previously received through the 3GPP access system) Into the 3GPP core network) and related information selected by the APN and PDN GW.
  • the trusted non-3GPP access gateway selects the PDN GW
  • the message returned by the HSS includes: the PDN GW address associated with the APN and the related information selected by the APN and the PDN GW, it is determined according to the negotiated UE capability indication information. Whether the PDN GW address associated with the APN is used, or whether the new PDN GW address is selected by the DNS server; if the message returned by the HSS includes only the PDN GW address associated with the APN, or only the relevant information selected by the APN and the PDN GW, It indicates that the HSS has made a corresponding decision according to the capability indication information of the UE, and the trusted non-3GPP access gateway does not need further decision.
  • Steps 408-410 the other process of completing the EAP between the UE and the AAA server.
  • Manner 1 The EAP authentication success message triggers a trusted non-3GPP access gateway to the PDN.
  • the GW establishes a session.
  • Step 411 After receiving the message that the EAP authentication succeeds, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes a protocol.
  • the UE's UE capability indication information After receiving the message that the EAP authentication succeeds, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes a protocol.
  • the UE's UE capability indication information After receiving the message that the EAP authentication succeeds, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes a protocol.
  • the UE's UE capability indication information After receiving the message that the EAP authentication succeeds, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes a protocol.
  • the UE's UE capability indication information After receiving the
  • Step 412 Perform an IP-CAN session establishment operation between the PDN GW and the PCRF entity.
  • Step 413 The PDN GW determines, according to the negotiated UE capability indication information and/or other local information, whether to perform an operation of updating the PDN GW address to the HSS through the AAA server. The specific operation is described below.
  • step 413 is performed.
  • the PDN GW address is not updated to the HSS/AAA server.
  • Step 414 The PDN GW sends a create session response or proxy binding acknowledgement message to the trusted non-3GPP access gateway.
  • Step 414 ′ the non-3GPP access gateway sends an EAP authentication success message to the UE.
  • Step 415 If step 413 is performed, and the PDN GW address associated with the APN has been saved in the HSS, but the PDN GW address updated in step 413 is different, the step is performed, and the HSS performs an update to the MME that previously established the connection with the HSS. The operation of the PDN GW identity.
  • Manner 2 The trusted non-3GPP access gateway is triggered by the IP address request message to establish a session with the PDN GW.
  • Step 416 After receiving the EAP authentication success message, the UE sends an IP address request message to the trusted non-3GPP access gateway. After receiving the IP address request message, the trusted non-3GPP access gateway sends a Create Session Request message or a Proxy Binding Update message to the PDN GW, where the message includes the negotiated UE capability indication information.
  • Steps 417-420 Except for steps 412-415, step 414.
  • the SGSN replaces the MME in this embodiment, and the GGSN replaces the PDN GW in this embodiment, and the functions to be enhanced are the same.
  • the trusted non-3GPP access gateway transmits the UE capability indication information to the AAA server through the PDN GW.
  • the application scenario is: Rl 1 UE And the R12 UE accesses the EPC through the WLAN access system.
  • the AAA server decides whether to perform the PDN GW identity update operation. For details, refer to the process shown in Figure 5. The process includes the following steps.
  • Step 501 The UE performs a non-3GPP specific process, such as link establishment, access authentication, and the like, with the trusted non-3GPP access gateway network element.
  • a non-3GPP specific process such as link establishment, access authentication, and the like
  • Step 502 The UE performs an EAP authentication process, where, in the authentication process, the trusted non-3GPP access gateway acquires the capability indication information of the UE, and the trusted non-3GPP access gateway locally according to the capability indication information of the UE and the local capability The decision gives the negotiated UE capability indication information.
  • the trusted non-3GPP access gateway selects the PDN GW
  • the message returned by the HSS includes: the PDN GW address associated with the APN and the related information selected by the APN and the PDN GW, it is determined according to the negotiated UE capability indication information. Whether the PDN GW address associated with the APN is used, or whether the new PDN GW address is selected by the DNS server; if the message returned by the HSS includes only the PDN GW address associated with the APN, or only the relevant information selected by the APN and the PDN GW, It indicates that the HSS has made a corresponding decision according to the capability indication information of the UE, and the trusted non-3GPP access gateway does not need further decision.
  • the following describes the flow of the trusted non-3GPP access gateway to deliver the negotiated UE capability indication information to the AAA server based on the two methods.
  • Manner 1 The EAP authentication success message triggers a trusted non-3GPP access gateway to establish a session with the PDN GW.
  • Step 503 The trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes the negotiated UE capability indication information.
  • Step 504 Perform an IP-CAN session establishment operation between the PDN GW and the PCRF entity.
  • Steps 505-505 the PDN GW updates the PDN GW to the HSS through the AAA server.
  • An address message where the message includes the negotiated UE capability indication information.
  • the AAA server decides whether to perform the operation of updating the PDN GW address to the HSS according to the negotiated UE capability indication information and/or other local information.
  • the PDN GW address is not updated to the HSS; if the UE is the R12 UE and is in the first access procedure, the PDN GW address is updated to the HSS, that is, step 505 is performed. .
  • the PDN GW address is not updated to the HSS.
  • Step 506 After receiving the IP address request message, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes the negotiated UE capability indication information.
  • Step 507 The non-3GPP access gateway sends an EAP authentication success message to the UE.
  • Manner 2 The trusted non-3GPP access gateway is triggered by the IP address request message to establish a session with the PDN GW.
  • Steps 508-511 After receiving the EAP authentication success message, the UE sends an IP address request message to the trusted non-3GPP access gateway. After receiving the IP address request message, the trusted non-3GPP access gateway sends a create session request message or a proxy binding update message to the PDN GW, where the message includes the negotiated UE capability indication information; Step 509-511 is the same as step 504- 506.
  • the SGSN replaces the MME in this embodiment, and the GGSN replaces the PDN GW in this embodiment, and the functions to be enhanced are the same.
  • the R1 UE and the R12 UE may be distinguished according to the received UE capability indication information, and the identifier information of the packet gateway is determined according to the attribute of the UE, thereby supporting the R1 1 UE and the R12 UE. Both can access the 3GPP core network normally through the 3GPP access system and the non-3GPP access system.
  • FIG. 6 it is a schematic structural diagram of an AAA server according to an embodiment of the present invention.
  • the AAA server includes a receiving module 61 and a decision module 62, where:
  • the receiving module 61 is configured to: receive a trusted non-3GPP access network (TNAN) network element Sending an EAP authentication message carrying the UE capability indication information; or receiving an update packet gateway address message that is sent by the packet gateway and carrying the UE capability indication information;
  • TNAN trusted non-3GPP access network
  • the decision module 62 is configured to: determine whether to update the identification information of the packet gateway according to the UE capability indication information and/or local information.
  • the determining module 62 is configured to: when determining that the current UE is an R12 UE according to the UE capability indication information and/or local information, and is in a handover process, updating the P- to a Home Subscriber Server (HSS) An address of the GW or the GGSN; when determining, according to the UE capability indication information and/or local information, that the current UE is an R12 UE and is the first access, updating the address of the P-GW or the GGSN to the HSS;
  • the UE capability indication information and/or the local information determine that the AAA server is used, and the R1 l UE and the R12 UE may be distinguished according to the received UE capability indication information, and may determine whether to update the identifier information of the packet gateway according to the attribute of the UE. Therefore, both the R1 1 UE and the R12 UE can be supported to access the 3GPP core network through the 3GPP access system and the non-3GPP access system at the same time.
  • the packet gateway includes a receiving module 71 and a decision module 72, where:
  • the receiving module 71 is configured to: receive a create session request message or a proxy binding update message that is sent by a trusted non-3GPP access network (TNAN) network element and that carries the UE capability indication information;
  • TNAN trusted non-3GPP access network
  • the decision module 72 is configured to: determine whether to update the identification information of the packet gateway according to the UE capability indication information and/or local information.
  • the determining module 72 is configured to: when determining that the current UE is an R12 UE according to the UE capability indication information and/or local information, and is in a handover process, not updating the HSS or the AAA server An address of the packet gateway; when determining, according to the UE capability indication information and/or local information, that the current UE is an R12 UE and is the first access, updating the address of the packet gateway to the HSS or the AAA server; or When determining, according to the UE capability indication information and/or local information, that the current UE is an R1 1 UE, not to the HSS or the AAA server. The address of the new packet gateway.
  • the foregoing packet gateway may further include: a sending module 73, where the sending module 73 is configured to: send an update packet gateway address message carrying the UE capability indication information to the AAA server.
  • Service Support Node GGSN
  • the foregoing packet gateway may be used to distinguish between the R1 l UE and the R12 UE according to the received UE capability indication information, and may determine whether to update the identifier information of the packet gateway according to the attribute of the UE, so that both the R1 1 UE and the R12 UE can be simultaneously supported.
  • the 3GPP core network is normally accessed through the 3GPP access system and the non-3GPP access system.
  • the TNAN network element includes an obtaining module 81 and a sending module 82, where:
  • the obtaining module 81 is configured to: obtain UE capability indication information
  • the sending module 82 is configured to: send an EAP authentication message carrying the UE capability indication information to an authentication and authorization charging (AAA) server; or send a creation session request message or a proxy binding that carries the UE capability indication information to the packet gateway. Update the message. Hold node (GGSN).
  • AAA authentication and authorization charging
  • the above TNAN network element may be the above TNAN gateway.
  • the eNB server or the packet gateway may indicate the information area R1 l UE and the R12 UE according to the received UE capability, and may use the TNAN network element to send the UE capability indication information to the AAA server or the group gateway.
  • the decision is to update the identity information of the packet gateway, so that both the R1 1 UE and the R12 UE can support the 3GPP core network through the 3GPP access system and the non-3GPP access system.
  • the R1 1 UE and the R12 UE can be distinguished, and the R1 1 UE and the R12 UE are both supported to access the 3GPP core network through the 3GPP access system and the non-3GPP access system.

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Abstract

一种分组网关标识信息的更新方法、认证授权计费(AAA)服务器和分组网关。该方法包括:决策网元接收信息传递网元发送的携带用户设备(UE)能力指示信息的消息;所述决策网元根据所述消息中携带的所述UE能力指示信息和/或本地信息决策是否更新所述分组网关的标识信息。本技术方案中,能够区分R11 UE和R12 UE,且保证支持R11 UE和R12 UE都能够同时通过3GPP接入系统和非3GPP接入系统正常接入3GPP核心网络。

Description

分组网关标识信息的更新方法、 AAA服务器和分组网关
技术领域
本发明涉及移动通信领域,尤其涉及一种分组网关标识信息的更新方法、 信息的发送方法、认证授权计费 ( Authentication , Authorization , and Accounting , AAA )服务器、 可信任的非 3GPP接入网网元和分组网关。 背景技术
第三代合作伙伴计划 (3rd Generation Partnership Project, 3GPP ) 的演进 的分组系统 (Evolved Packet System, EPS ) 由演进的通用地面无线接入网 ( Evolved Universal Terrestrial Radio Access Network, E-UTRAN )、 移动管理 单元 ( Mobility Management Entity, MME ) 、 服务网关 ( Serving Gateway, S-GW ) 、 分组数据网络网关 ( Packet Data Network Gateway, PDN GW, 也 称 P-GW )和归属用户服务器( Home Subscriber Server, HSS )组成。
EPS支持与非 3GPP系统的互通, 如图 1所示, 其中, 与非 3GPP系统的 互通通过 S2a/b/c接口实现, PDN GW作为 3GPP系统与非 3GPP系统间的锚 点。 在 EPS的系统架构图中, 非 3GPP系统接入被分为不可信任非 3GPP接 入和可信任非 3GPP接入; 其中, 不可信任非 3GPP接入需经过演进的分组数 据网关 ( Evolved Packet Data Gateway, ePDG )与 PDN GW相连, ePDG与 PDN GW间的接口为 S2b; 可信任非 3GPP接入可直接通过 S2a接口与 PDN GW连接, S2a接口釆用代理移动互联网协议( Proxy Mobile Internet Protocol , PMIP )进行信息交互; 另夕卜, S2c接口提供了用户设备 ( User Equipment, UE )与 PDN GW之间的用户面相关的控制和移动性支持, 其支持的移动性 管理协议为支持双栈的移动 IPv6 ( Mobile IPv6 Support for Dual Stack Hosts and Routers, DSMIPv6), 其可用于不可信任非 3GPP接入和可信任非 3GPP 接入。
无线局域网络( Wireless Local Area Network , WLAN )可以作为非 3GPP 系统接入演进的分组核心网 (Evolved Packet Core, EPC ) , 这涉及到很多运 营商关注的固网移动融合的互连互通问题。 目前, 对于 S2b接口和 S2c接口的流程和策略互通的研究很多, 而对于 S2a接口的研究很少。 S2a移动性研究( Study on S2a Mobility based On GTP & WLAN access to EPC, SaMOG 果题主要是研究 WLAN作为可信任的非 3GPP 接入网络( Trusted Non-3GPP IP Access Network, TNAN ) , UE通过 S2a接 口接入 EPC的互连互通问题。 在相关技术中, 如图 2所示, UE通过非 3GPP 接入网接入 3GPP EPC的流程 , 根据如何触发非 3GPP接入网向 PDN GW发 起隧道建立的方式区分, 主要存在两种方式, 具体描述如下:
方式一: UE 完成非 3GPP特有的流程以及扩展认证协议 ( Extensible Authentication Protocol, EAP )认证流程之后, UE和 TNAN网元之间执行层 3 ( Layer 3 , L3 ) 消息, 然后 TNAN收到 L3消息之后, 向移动核心网络的 PDN GW发起隧道建立的流程。
方式二: 除了 L3消息外, 层 2 ( Layer 2, L2 )消息同样也能作为一种触 发方式, 比如, EAP消息。 UE完成非 3GPP特有的流程以及 EAP认证流程 之后, TNAN收到 EAP认证成功消息之后, 向移动核心网络的 PDN GW发 起隧道建立的流程。
SaMOG课题的研究方案主要分为对 UE没有影响的方案和对 UE有影响 的方案。 所谓对 UE没有影响的方案是指 UE不支持传递接入点名称(Access Point Name , APN )信息、额外的分组数据网络 ( Packet Data Network , PDN ) 连接、 以及接入系统间的切换流程等, 上面的 UE对应着 3GPP标准中版本 11 ( Release 11 , R11 )之前的 UE, 下面简称为 R11 UE; 而对 UE有影响的 方案是指 UE支持传递 APN信息、 额外的 PDN连接、 以及接入系统间的切 换流程等,上面的 UE对应着 3GPP标准中版本 12 ( Release 12, R12 )的 UE, 下面简称为 R12 UE; 相关技术中, 保证 UE后续在接入系统间进行无缝切换 的具体实现如下: 当 UE首先接入 3GPP系统或者非 3GPP系统时, 选择了 PDN GW之后, PDN GW需要向 HSS更新 PDN GW标识; 然后, 在 UE发 生切换的时候,则切换的目标接入系统会从 HSS中获取之前保存的 PDN GW 标识。并且,如果 HSS保存的相同 APN关联的 PDN GW标识更新的话, HSS 会向 MME, 或者通过 AAA服务器 , 向非 3GPP网元更新 PDN GW标识。
对于对 UE没有影响的方案来说, 虽然 UE不支持切换流程,但其可以同 时独立地通过 WLAN接入系统和 3GPP接入系统接入 3GPP核心网络;并且, UE可能釆用相同的 APN, 但是可能会接入不同的 PDN GW。 在相关技术中, PDN GW没有收到 UE的切换指示, 认为这两个不同的接入均是该 UE的首 次接入, 则当 UE先通过 WLAN接入系统接入时, PDN GW会向 HSS更新 PDN GW标识; 然后, UE再通过 3GPP接入系统接入时, PDN GW会再次 向 HSS更新 PDN GW标识, 这个时候, 新的 PDN GW标识会覆盖掉之前保 存的 PDN GW标识; 并且, HSS发现该 UE基于相同 APN选择的 PDN GW 标识变化,会通过 AAA服务器向 WLAN的接入网关发送更新的 PDN GW标 识, 进而, 会引起 WLAN网络流程异常; 反之, 当 UE先通过 3GPP接入系 统接入, 然后再通过 WLAN接入系统接入时, HSS发现该 UE基于相同 APN 选择的 PDN GW标识变化, 会向 MME发送变化的 PDN GW标识, 进而, 会引起 3GPP网络流程异常。
此夕卜 , 通用移动通信系统 ( Universal Mobile Telecommunications System, UMTS )也支持与非 3GPP系统的互通; 不同的是, 使用服务通用分组无线业 务支撑节点( Serving General Packet Radio Service Support Node , SGSN )代替 了 MME和 S-GW, 使用网关通用分组无线业务支持节点 (Gateway General Packet Radio Service Supporting Node , GGSN )代替了 P-GW。
因此, 不支持切换的 UE同时通过 UMTS和非 3GPP系统接入移动核心 网的问题也同样存在。
发明内容
本发明实施例提供了一种分组网关标识信息的更新方法、 信息的发送方 法、 认证授权计费 ( AAA )服务器、 可信任的非 3GPP接入网网元和分组网 关, 以解决 UE同时通过 3GPP系统和非 3GPP系统接入移动核心网引起的网 络异常问题。
本发明实施例提供了一种分组网关标识信息的更新方法, 包括: 决策网元接收信息传递网元发送的携带用户设备 ( UE )能力指示信息的 消息; 以及 所述决策网元根据所述消息中携带的所述 UE能力指示信息和 /或本地信 息决策是否更新所述分组网关的标识信息。
可选地,所述 UE能力指示信息为不同版本 UE的区别信息、或者请求的 接入点名称(APN )信息、 或者请求类型、 或者 UE请求的业务类型、 或者 分组数据网络( PDN )类型。
可选地, 所述决策网元接收信息传递网元发送的携带 UE能力指示信息 的消息的步骤包括:
认证授权计费 (AAA )服务器接收可信任的非 3GPP接入网 (TNAN ) 网元发送的携带所述 UE能力指示信息的扩展认证协议(EAP )认证消息; 或 者,
所述 AAA服务器接收所述分组网关发送的携带所述 UE能力指示信息的 更新分组网关地址消息, 其中, 所述分组网关从所述 TNAN网元发送的创建 会话请求消息或者代理绑定更新消息中获得所述 UE能力指示信息; 或者 所述分组网关接收所述 TNAN网元发送的携带所述 UE能力指示信息的 所述创建会话请求消息或者所述代理绑定更新消息。
可选地, 所述分组网关为分组数据网络网关(P-GW )或网关通用分组无 线服务支持节点 (GGSN ) 。
可选地, 当所述决策网元为所述 AAA服务器时, 所述决策网元根据所述 消息中携带的所述 UE能力指示信息和 /或本地信息决策是否更新分组网关的 标识信息的步骤包括:
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且处于切换流程时, 则不向归属用户服务器(HSS ) 更新所述 P-GW或所述 GGSN的地址;
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且为首次接入时,则向所述 HSS更新所述 P-GW或所述 GGSN 的地址; 或者
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前 当所述决策网元为所述分组网关时, 所述决策网元根据所述消息中携带 的所述 UE能力指示信息和 /或本地信息决策是否更新分组网关的标识信息的 步骤包括:
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 R12 UE且处于切换流程时,则不向所述 HSS或所述 AAA服务器更新所述 分组网关的地址;
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 R12 UE且为首次接入时,则向所述 HSS或所述 AAA服务器更新所述分组 网关的地址; 或者
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 Rl 1 UE时,则不向所述 HSS或所述 AAA服务器更新所述分组网关的地址。
可选地, 所述决策网元接收信息传递网元发送的携带 UE能力指示信息 的消息的步骤之后, 所述方法还包括:
所述 AAA服务器向所述 HSS发送所述 UE能力指示信息。
本发明实施例还提供了一种信息发送方法, 包括:
信息传递网元获得用户设备 ( UE ) 能力指示信息;
所述信息传递网元向决策网元发送携带所述 UE能力指示信息的消息。 可选地,所述 UE能力指示信息为不同版本 UE的区别信息、或者请求的 接入点名称(APN )信息、 或者请求类型、 或者 UE请求的业务类型、 或者 分组数据网络(PDN )类型。
可选地, 所述信息传递网元向决策网元发送携带所述 UE能力指示信息 的消息的步骤包括:
可信任的非 3GPP接入网 (TNAN ) 网元向认证授权计费 (AAA )服务 器发送携带所述 UE能力指示信息的扩展认证协议(EAP )认证消息; 或者, 所述 TNAN网元向分组网关发送携带所述 UE能力指示信息的创建会话 请求消息或者代理绑定更新消息。
可选地, 所述分组网关为分组数据网络网关(P-GW )或网关通用分组无 线服务支持节点 (GGSN ) 。
可选地, 所述 TNAN网元向分组网关发送携带所述 UE能力指示信息的 创建会话请求消息或者代理绑定更新消息的步骤之后, 所述方法还包括: 所述分组网关向所述 AAA服务器发送携带所述 UE能力指示信息的更新 分组网关地址消息。
本发明实施例另提供了一种认证授权计费 (AAA )服务器, 包括: 接收模块, 其设置成: 接收可信任的非 3GPP接入网(TNAN )网元发送 的携带用户设备 ( UE ) 能力指示信息的扩展认证协议(EAP )认证消息; 或 者, 接收分组网关发送的携带所述 UE能力指示信息的更新分组网关地址消 息; 以及
决策模块, 其设置成: 根据所述 UE能力指示信息和 /或本地信息决策是 否更新所述分组网关的标识信息。
可选地, 所述决策模块是设置成: 当根据所述 UE能力指示信息和 /或本 地信息确定当前 UE为 R12 UE且处于切换流程时, 则不向归属用户服务器 ( HSS )更新分组数据网络网关(P-GW )或网关通用分组无线服务支持节点 ( GGSN )的地址; 当根据所述 UE能力指示信息和 /或本地信息确定当前 UE 地址; 当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 Rl l UE 本发明实施例又提供了一种分组网关, 包括:
接收模块, 其设置成: 接收可信任的非 3GPP接入网(TNAN )网元发送 的携带用户设备 ( UE )能力指示信息的创建会话请求消息或者代理绑定更新 消息; 以及
决策模块, 其设置成: 根据所述 UE能力指示信息和 /或本地信息决策是 否更新所述分组网关的标识信息。
可选地, 所述决策模块是设置成:
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且处 于切换流程时, 则不向归属用户服务器(HSS )或认证授权计费 (AAA )服 务器更新所述分组网关的地址;
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且为 首次接入时, 则向所述 HSS或所述 AAA Λ良务器更新所述分组网关的地址; 或者
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 Rl l UE时, 则不向所述 HSS或所述 AAA服务器更新所述分组网关的地址。
可选地, 所述分组网关还包括:
发送模块, 其设置成: 向所述 AAA服务器发送携带所述 UE能力指示信 息的更新分组网关地址消息。
可选地, 所述分组网关为分组数据网络网关( P-GW )或网关通用分组无 线服务支持节点 (GGSN ) 。
本发明实施例又提供了一种可信任的非 3GPP接入网(TNAN )网元, 包 括:
获得模块, 其设置成: 获得用户设备(UE ) 能力指示信息; 以及 发送模块, 其设置成: 向认证授权计费(AAA )服务器发送携带所述 UE 能力指示信息的扩展认证协议(EAP )认证消息; 或者, 向分组网关发送携 带所述 UE能力指示信息的创建会话请求消息或者代理绑定更新消息。
本发明实施例中 , 能够区分 Rl 1 UE和 R12 UE, 且保证支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和非 3GPP接入系统正常接入 3GPP 核心网络。 附图概述
图 1是相关技术中 3GPP网络与非 3GPP网络互通的网络结构图。
图 2是相关技术中 UE通过可信任的 WLAN接入 EPC的信令流程图。 图 3是本发明实施例一的更新分组网关的标识信息的信令流程图。
图 4是本发明实施例二的更新分组网关的标识信息的信令流程图。
图 5是本发明实施例三的更新分组网关的标识信息的信令流程图。 图 6是本发明实施例的 AAA服务器的结构示意图。
图 7是本发明实施例的分组网关的结构示意图。
图 8是本发明实施例的 TNAN网元的结构示意图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
本发明实施例提供了一种分组网关标识信息的更新方法, 该方法适用于 UE通过非 3GPP系统接入 3GPP移动核心网 ,该方法从决策网元侧进行描述, 该方法包括以下步骤。
步骤 11、 决策网元接收信息传递网元发送的携带 UE能力指示信息的消 息。
上述决策网元可以为 AAA服务器、 PDN GW或 GGSN, 上述信息传递 网元可以为 TNAN或 PDN GW; 上述 UE能力指示信息为不同版本 UE的区 别信息、 或者请求的接入点名称(APN )信息、 或者请求类型、 或者 UE请 求的业务类型、 或者分组数据网络(PDN )类型。
步骤 12、 决策网元根据所述消息中携带的所述 UE能力指示信息和 /或本 地信息决策是否更新分组网关的标识信息。
本发明实施例还提供了一种信息发送方法, 该实施例从信息传递网元侧 进行描述, 该方法包括以下步骤。
步骤 21、 信息传递网元获得 UE能力指示信息。
步骤 22、 信息传递网元向决策网元发送携带 UE能力指示信息的消息。 该步骤 22包括: 可信任的非 3GPP接入网 (TNAN ) 网元向认证授权计 费 (AAA )服务器发送携带所述 UE能力指示信息的 EAP认证消息; 或者, 所述 TNAN网元向分组网关发送携带所述 UE能力指示信息的创建会话请求 消息或者代理绑定更新消息, 其中, 所述分组网关为分组数据网络网关 ( P-GW )或网关通用分组无线服务支持节点 (GGSN ) ; 或者分组网关向认 证授权计费 (AAA )服务器发送携带所述 UE能力指示信息的更新分组网关 地址的消息。
该 TNAN网元可以为 TNAN网关。
下面从决策网元和信息传递网元交互的角度分别针对 PDN GW和 AAA 服务器如何获取 UE能力指示信息, 并根据该信息决策是否更新 PDN GW标 识进行描述。
实施例一
该实施例中, UE通过可信任的非 3GPP接入系统接入 EPC时, 可信任 的非 3GPP接入网关通过 EAP认证消息,将 UE能力指示信息传递给 AAA服 务器; 其应用场景为: Rl l UE和 R12 UE通过 WLAN接入系统接入 EPC。
AAA服务器来决策是否执行 PDN GW标识更新的操作。 具体可参见图 3所 示流程, 该流程包括以下步骤。
步骤 301、 UE可能已经通过 3GPP接入系统接入 3GPP EPC; UE与可信 任的非 3GPP接入网关网元执行非 3GPP特有的流程, 比如, 链路建立、接入 认证等。
步骤 302-304、可信任的非 3GPP接入网关作为 EAP认证者,会向 UE触 发 EAP认证流程。 如果 AAA服务器来决策是否更新 PDN GW标识的话, 则 AAA服务器需要获取 UE能力指示信息, 因此, 可信任的非 3GPP接入网关 可以获取 UE能力指示信息,该 UE能力指示信息可以通过请求的 APN信息、 或者请求类型、或者 UE请求的业务类型、或者 PDN类型来隐式表示其能力, 比如, 如果 TNAN收到 UE传递的前面任一种信息, 则该 UE为 R12 UE; 如 果 TNAN没有收到 UE传递的上述任一种信息, 则该 UE为 Rl 1 UE。 或者, UE显示传递一个能够说明 Rl l UE (不支持传递 APN和切换等流程 )和 R12 UE (支持传递 APN和切换等流程) 区别的指示信息, 比如, Rl l UE或者 R12 UE, 来显式表示其能力。
TNAN获取 UE的能力指示信息之后, 结合本地的能力, 给出一个协商 的 UE能力指示信息,比如,如果 UE支持传递 APN和切换等流程,但是 TNAN 不支持接收 APN和额外的 PDN连接、 切换等流程的话, 则协商的 UE能力 指示信息会表示为不支持接收 APN和额外的 PDN连接、 切换等流程; 如果 UE不支持传递 APN和额外的 PDN连接、 切换等流程, 但是 TNAN支持接 收 APN和额外的 PDN连接、 切换等流程的话, 则协商的 UE能力指示信息 会表示为不支持接收 APN和额外的 PDN连接、 切换等流程。 具体定义和前 面的 UE能力指示信息相同,并通过 EAP认证消息传递给 3GPP AAA服务器。 其中,请求类型包括附着类型或者切换类型, UE请求的业务类型为业务分流 或者接入 EPC。
具体可以执行以下操作。 1 ) UE在 EAP请求( EAP-RES ) /标识( Identity )消息中携带 UE能力指 示信息给可信任的非 3GPP接入网关, 可信任的非 3GPP接入网关可以根据 UE携带的能力指示信息和本地的策略, 决策是否允许 UE切换, 并给出协商 的 UE能力指示信息, 具体表示方法同上。
2 )可信任的非 3GPP接入网关通过 EAP-REQ/Identity消息, 将其支持的 UE 能力指示信息传递给 UE, UE根据本身的能力指示信息和可信任的非 3GPP接入网关支持的 UE能力指示信息, 决策是否执行 UE切换, 并给出协 商的 UE能力指示信息, 具体表示方法同上。 然后, 在 EAP-RES/Identity消息 中携带 UE能力指示信息给可信任的非 3 GPP接入网关。
然后, 可信任的非 3GPP接入网关将 EAP-RES/Identity消息封装在直径 ( Diameter ) /远程用户拨号认证服务( Radius )消息中, 并传递给 AAA服务 器。 其中, 协商的 UE能力指示信息可以包含在 Diameter/Radius消息中或者 Diameter/Radius消息中的 EAP-RES/Identity消息中。
步骤 305、 UE和 AAA服务器之间执行认证与密钥协商( Authentication and Key Agreement, AKA' )标识请求 /响应操作。
步骤 306-307、AAA服务器向 HSS请求 EAP认证需要的参数和签约信息。
HSS向 AAA服务器返回的消息, 该消息可能包括: 该 APN关联的 PDN GW 地址以及 APN和 PDN GW选择的相关信息。
可选地, AAA服务器可以将协商的 UE能力指示信息传递给 HSS, HSS 可以根据该信息和 /或其他本地信息, 执行下面的操作。
1 )如果为 R12 UE的话, 且 HSS中没有保存该 APN关联的 PDN GW地 址的话, 则向 AAA服务器返回 APN和 PDN GW选择的相关信息;否则, 返 回该 APN关联的 PDN GW地址。
2 )如果为 Rl 1 UE的话,则不向 AAA服务器发送之前接入 3GPP接入系 统时选择的 PDN GW地址, 而是向 AAA服务器返回 APN和 PDN GW选择 的相关信息。
后续, 可信任的非 3GPP接入网关选择 PDN GW时, 如果 HSS返回的消 息包括: 该 APN关联的 PDN GW地址以及 APN和 PDN GW选择的相关信 息的话, 则其根据协商的 UE能力指示信息决定是釆用该 APN关联的 PDN GW地址, 还是通过域名服务器(Domain Name Server, DNS )选择新的 PDN GW地址; 如果 HSS返回的消息仅包括该 APN关联的 PDN GW地址, 或者 仅包括 APN和 PDN GW选择的相关信息的话, 则说明 HSS已经根据 UE的 能力指示信息作出相应的决策了, 可信任的非 3GPP接入网关不需要进一步 决策了。
步骤 308-310、 UE和 AAA服务器之间完成 EAP的其他流程。
方式一: 通过 EAP认证成功消息触发可信任的非 3GPP接入网关向 PDN GW建立会话。
步骤 311、 可信任的非 3GPP接入网关收到 EAP认证成功的消息之后, 向 PDN GW发送创建会话请求消息或者代理绑定更新消息。
步骤 312、 PDN GW和策略和计费规则功能( Policy And Charging Rules Function, PCRF ) 实体之间执行 IP 连接性接入网 (IP Connectivity Access Network, IP-CAN )会话建立操作。
步骤 313、 PDN GW通过 AAA服务器,向 HSS更新 PDN GW地址; AAA 服务器收到 PDN GW发送的更新 PDN GW地址消息后,根据协商的 UE能力 指示信息和 /或本地信息, 决策是否向 HSS执行更新 PDN GW地址的操作。 具体操作描述如下。
1 )如果 UE为 R12 UE、且处于切换流程的话,则不向 HSS更新 PDN GW 地址;如果 UE为 R12 UE、且处于首次接入流程的话,则向 HSS更新 PDN GW 地址, 即执行步骤 313, 。
2 )如果 UE为 Rl 1 UE的话, 则不向 HSS更新 PDN GW地址。
步骤 314、 PDN GW向可信任的非 3GPP接入网关发送创建会话响应或 者代理绑定确认消息。
步骤 315、 非 3GPP接入网关向 UE发送 EAP认证成功消息。
步骤 316、 如果步骤 313, 执行的话, 且 HSS中已经保存该 APN关联的 PDNGW地址, 但与步骤 313, 更新的 PDN GW地址不同的话, 则执行该步 骤, HSS向之前和其建立连接的 MME执行更新 PDN GW标识的操作。
需要说明的是, 上述步骤 314和 316的执行没有先后顺序。
方式二: 通过 IP地址请求消息触发可信任的非 3GPP接入网关向 PDN GW建立会话。
步骤 317、可信任的非 3GPP接入网关收到 IP地址请求消息之后,向 PDN GW发送创建会话请求消息或者代理绑定更新消息,该消息中包含协商的 UE 能力指示信息。
步骤 318-321 : 同步骤 312-316, 步骤 315除外。
当 3GPP网络为 UMTS时, SGSN代替该实施例中的 MME, GGSN代替 该实施例中的 PDN GW即可, 要增强的功能是相同的。
实施例二
该实施例中, UE通过可信任的非 3GPP接入系统接入 EPC时, 可信任 的非 3GPP接入网关通过 EAP认证消息,将 UE能力指示信息传递给 AAA服 务器; 其应用场景为: Rl l UE和 R12 UE通过 WLAN接入系统接入 EPC。
PDN GW来决策是否执行 PDN GW标识更新的操作。具体可参见图 4所示流 程, 该流程包括以下步骤。
步骤 401、 UE可能已经通过 3GPP接入系统接入 3GPP EPC。 UE与可信 任的非 3GPP接入网关网元执行非 3GPP特有的流程, 比如, 链路建立、接入 认证等。
步骤 402-404、可信任的非 3GPP接入网关作为 EAP认证者,会向 UE触 发 EAP认证流程。
然后, 可信任的非 3GPP 接入网关将 EAP-RES/Identity 消息封装在 Diameter/Radius消息中, 并传递给 AAA服务器。
其中,可信任的非 3GPP接入网关获取 UE的能力指示信息的定义和获取 方式参见实施例 1的相关描述。 TNAN获取 UE的能力指示信息之后, 结合 本地的能力,给出一个协商的 UE能力指示信息,具体为一个能够说明 Rl 1 UE (不支持传递 APN和额外的 PDN连接、 切换等流程 )和 R12 UE (支持传递 APN和额外的 PDN连接、 切换等流程) 区别的指示信息, 比如, R11 UE或 者 R12 UE, 来显式表示其能力。
步骤 405、 UE和 AAA服务器之间执行 ΑΚΑ' 标识请求 /响应操作。
步骤 406-407、 AAA服务器向 HSS请求 EAP认证需要的参数和签约信息, HSS向 AAA服务器返回的消息, 该消息可能包括: 该 APN关联的 PDN GW 地址(如果 UE之前已经通过 3GPP接入系统接入 3GPP核心网络的话 )以及 APN和 PDN GW选择的相关信息。
后续, 可信任的非 3GPP接入网关选择 PDN GW时, 如果 HSS返回的消 息包括: 该 APN关联的 PDN GW地址以及 APN和 PDN GW选择的相关信 息的话, 则其根据协商的 UE能力指示信息决定是釆用该 APN关联的 PDN GW地址, 还是通过 DNS服务器选择新的 PDN GW地址; 如果 HSS返回的 消息仅包括该 APN关联的 PDN GW地址, 或者仅包括 APN和 PDN GW选 择的相关信息的话, 则说明 HSS已经根据 UE的能力指示信息作出相应的决 策了, 可信任的非 3GPP接入网关不需要进一步决策了。
步骤 408-410、 UE和 AAA服务器之间完成 EAP的其他流程。
方式一: 通过 EAP认证成功消息触发可信任的非 3GPP接入网关向 PDN
GW建立会话。
步骤 411、 可信任的非 3GPP接入网关收到 EAP认证成功的消息之后, 向 PDN GW发送创建会话请求消息或者代理绑定更新消息,该消息中包含协 商的 UE能力指示信息。
步骤 412、 PDN GW和 PCRF实体之间执行 IP-CAN会话建立操作。 步骤 413、 PDN GW根据协商的 UE能力指示信息和 /或其他本地信息, 决策是否通过 AAA服务器, 向 HSS执行更新 PDN GW地址的操作。 具体操 作描述如下。
1 )如果 UE为 R12 UE、 且处于切换流程的话, 则不向 HSS/AAA服务器 更新 PDN GW地址; 如果 UE为 R12 UE、 且处于首次接入流程的话, 则向 HSS/AAA服务器更新 PDN GW地址, 即执行步骤 413。
2 )如果 UE为 Rl 1 UE的话, 则不向 HSS/AAA服务器更新 PDN GW地 址。
步骤 414、 PDN GW向可信任的非 3GPP接入网关发送创建会话响应或 者代理绑定确认消息。
步骤 414' 、 非 3GPP接入网关向 UE发送 EAP认证成功消息。
步骤 415、 如果步骤 413执行的话, 且 HSS中已经保存该 APN关联的 PDN GW地址,但与步骤 413更新的 PDN GW地址不同的话,则执行该步骤, HSS向之前和其建立连接的 MME执行更新 PDN GW标识的操作。
需要说明的是, 上述步骤 414和 415的执行没有先后顺序。
方式二: 通过 IP地址请求消息触发可信任的非 3GPP接入网关向 PDN GW建立会话。
步骤 416、 UE收到 EAP认证成功消息后, 会向可信任的非 3GPP接入网 关发送 IP地址请求消息。可信任的非 3GPP接入网关收到 IP地址请求消息之 后, 向 PDN GW发送创建会话请求消息或者代理绑定更新消息, 该消息中包 含协商的 UE能力指示信息。
步骤 417-420: 同步骤 412-415 , 步骤 414, 除外。
当 3GPP网络为 UMTS时, SGSN代替该实施例中的 MME, GGSN代替 该实施例中的 PDN GW即可, 要增强的功能是相同的。 实施例三
该实施例中, UE通过可信任的非 3GPP接入系统接入 EPC时, 可信任 的非 3GPP接入网关通过 PDN GW,将 UE能力指示信息传递给 AAA服务器; 其应用场景为: Rl 1 UE和 R12 UE通过 WLAN接入系统接入 EPC。 AAA服 务器来决策是否执行 PDN GW标识更新的操作。 具体可参见图 5所示流程, 该流程包括以下步骤。
步骤 501、 UE与可信任的非 3GPP接入网关网元执行非 3GPP特有的流 程, 比如, 链路建立、 接入认证等。
步骤 502、 UE执行 EAP认证流程, 其中, 在认证过程中, 可信任的非 3GPP接入网关获取 UE的能力指示信息, 可信任的非 3GPP接入网关本地根 据 UE的能力指示信息和本地的能力, 决策给出协商的 UE能力指示信息。
其中, UE的能力指示信息和协商的 UE能力指示信息的获取和定义参 见实施例二的相关描述。
后续, 可信任的非 3GPP接入网关选择 PDN GW时, 如果 HSS返回的消 息包括: 该 APN关联的 PDN GW地址以及 APN和 PDN GW选择的相关信 息的话, 则其根据协商的 UE能力指示信息决定是釆用该 APN关联的 PDN GW地址, 还是通过 DNS服务器选择新的 PDN GW地址; 如果 HSS返回的 消息仅包括该 APN关联的 PDN GW地址, 或者仅包括 APN和 PDN GW选 择的相关信息的话, 则说明 HSS已经根据 UE的能力指示信息作出相应的决 策了, 可信任的非 3GPP接入网关不需要进一步决策了。
下面基于这两种方式来分别描述可信任的非 3GPP接入网关传递协商的 UE能力指示信息给 AAA服务器的流程。
方式一: 通过 EAP认证成功消息触发可信任的非 3GPP接入网关向 PDN GW建立会话。
步骤 503、 可信任的非 3GPP接入网关向 PDN GW发送创建会话请求消 息或者代理绑定更新消息, 该消息中包含协商的 UE能力指示信息。
步骤 504、 PDN GW和 PCRF实体之间执行 IP-CAN会话建立操作。 步骤 505-505, 、 PDN GW通过 AAA服务器, 向 HSS更新 PDN GW地 址消息, 该消息中包含协商的 UE能力指示信息。 AAA服务器收到 PDN GW 发送的更新 PDN GW地址的消息后,根据协商的 UE能力指示信息和 /或其他 本地信息, 决策是否向 HSS执行更新 PDN GW地址的操作。 具体操作描述 下:
1 )如果 UE为 R12 UE、且处于切换流程的话,则不向 HSS更新 PDN GW 地址;如果 UE为 R12 UE、且处于首次接入流程的话,则向 HSS更新 PDN GW 地址, 即执行步骤 505, 。
2 )如果 UE为 Rl 1 UE的话, 则不向 HSS更新 PDN GW地址。
步骤 506、可信任的非 3GPP接入网关收到 IP地址请求消息之后,向 PDN GW发送创建会话请求消息或者代理绑定更新消息,该消息中包含协商的 UE 能力指示信息。
步骤 507、 非 3GPP接入网关向 UE发送 EAP认证成功消息。
方式二: 通过 IP地址请求消息触发可信任的非 3GPP接入网关向 PDN GW建立会话。
步骤 508-511、 UE收到 EAP认证成功消息后, 会向可信任的非 3GPP接 入网关发送 IP地址请求消息。可信任的非 3GPP接入网关收到 IP地址请求消 息之后, 向 PDN GW发送创建会话请求消息或者代理绑定更新消息, 该消息 中包含协商的 UE能力指示信息; 步骤 509-511同步骤 504-506。
当 3GPP网络为 UMTS时, SGSN代替该实施例中的 MME, GGSN代替 该实施例中的 PDN GW即可, 要增强的功能是相同的。
上述分组网关标识信息的更新方法中, 根据接收的 UE能力指示信息可 以区分 Rl l UE和 R12 UE, 并根据 UE的属性来决策是否更新分组网关的标 识信息, 从而可以支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和 非 3GPP接入系统正常接入 3GPP核心网络。
如图 6所示, 是本发明实施例的 AAA服务器的结构示意图, 该 AAA服 务器包括接收模块 61和决策模块 62, 其中:
所述接收模块 61设置成: 接收可信任的非 3GPP接入网 (TNAN ) 网元 发送的携带 UE能力指示信息的 EAP认证消息; 或者, 接收分组网关发送的 携带所述 UE能力指示信息的更新分组网关地址消息; 以及
所述决策模块 62设置成:根据所述 UE能力指示信息和 /或本地信息决策 是否更新所述分组网关的标识信息。
另外, 所述决策模块 62是设置成: 当根据所述 UE能力指示信息和 /或本 地信息确定当前 UE为 R12 UE且处于切换流程时, 则不向归属用户服务器 ( HSS ) 更新所述 P-GW或 GGSN的地址; 当根据所述 UE能力指示信息和 / 或本地信息确定当前 UE为 R12 UE且为首次接入时, 则向所述 HSS更新所 述 P-GW或 GGSN的地址; 当根据所述 UE能力指示信息和 /或本地信息确定 釆用上述 AAA服务器, 根据接收的 UE能力指示信息可以区分 Rl l UE 和 R12 UE, 并可以根据 UE的属性来决策是否更新分组网关的标识信息, 从 而可以支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和非 3GPP接 入系统正常接入 3GPP核心网络。
如图 7所示, 是本发明实施例的分组网关的结构示意图, 该分组网关包 括接收模块 71和决策模块 72, 其中:
所述接收模块 71设置成: 接收可信任的非 3GPP接入网 (TNAN ) 网元 发送的携带 UE能力指示信息的创建会话请求消息或者代理绑定更新消息; 以及
所述决策模块 72设置成:根据所述 UE能力指示信息和 /或本地信息决策 是否更新所述分组网关的标识信息。
其中, 所述决策模块 72是设置成: 当根据所述 UE能力指示信息和 /或本 地信息确定当前 UE为 R12 UE且处于切换流程时, 则不向所述 HSS或所述 AAA服务器更新所述分组网关的地址; 当根据所述 UE能力指示信息和 /或本 地信息确定当前 UE为 R12 UE且为首次接入时, 则向所述 HSS或所述 AAA 服务器更新所述分组网关的地址; 或者, 当根据所述 UE能力指示信息和 /或 本地信息确定当前 UE为 Rl 1 UE时,则不向所述 HSS或所述 AAA服务器更 新所述分组网关的地址。
另外, 上述分组网关还可以包括: 发送模块 73 , 所述发送模块 73设置 成: 向所述 AAA服务器发送携带所述 UE能力指示信息的更新分组网关地址 消息。 务支持节点 (GGSN ) 。
釆用上述分组网关, 根据接收的 UE能力指示信息可以区分 Rl l UE和 R12 UE, 并可以根据 UE的属性来决策是否更新分组网关的标识信息, 从而 可以支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和非 3GPP接入 系统正常接入 3GPP核心网络。
如图 8所示, 是本发明实施例的 TNAN网元的结构示意图, 该 TNAN网 元包括获得模块 81和发送模块 82 , 其中:
获得模块 81设置成: 获得 UE能力指示信息; 以及
发送模块 82设置成: 向认证授权计费 (AAA )服务器发送携带所述 UE 能力指示信息的 EAP认证消息; 或者, 向分组网关发送携带所述 UE能力指 示信息的创建会话请求消息或者代理绑定更新消息。 持节点 (GGSN ) 。
上述 TNAN网元可以为上述 TNAN网关。
釆用上述 TNAN网元,通过将 UE能力指示信息发送给 AAA服务器或 组网关,使得 AAA服务器或分组网关可以根据接收的 UE能力指示信息区 Rl l UE和 R12 UE, 并可以根据 UE的属性来决策是否更新分组网关的标识 信息, 从而可以支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和非 3GPP接入系统正常接入 3GPP核心网络。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 上述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明实施例不限 制于任何特定形式的硬件和软件的结合。
以上实施例仅用以说明本发明的技术方案而非限制, 仅仅参照较佳实施 例对本发明技术方案进行了详细说明。 本领域的普通技术人员应当理解, 可 以对本发明的技术方案进行修改或者等同替换, 而不脱离本发明技术方案的 精神和范围,这些修改或者等同替换均应涵盖在本发明的权利要求范围当中。
工业实用性
本发明实施例中 , 能够区分 Rl 1 UE和 R12 UE, 且保证支持 Rl 1 UE和 R12 UE都能够同时通过 3GPP接入系统和非 3GPP接入系统正常接入 3GPP 核心网络。

Claims

权 利 要 求 书
1、 一种分组网关标识信息的更新方法, 包括:
决策网元接收信息传递网元发送的携带用户设备 ( UE )能力指示信息的 消息; 以及
所述决策网元根据所述消息中携带的所述 UE能力指示信息和 /或本地信 息决策是否更新所述分组网关的标识信息。
2、 根据权利要求 1所述的方法, 其中:
所述 UE能力指示信息为不同版本 UE的区别信息、或者请求的接入点名 称(APN )信息、 或者请求类型、 或者 UE请求的业务类型、 或者分组数据 网络(PDN )类型。
3、 根据权利要求 1或 2所述的方法, 其中:
所述决策网元接收信息传递网元发送的携带 UE能力指示信息的消息的 步骤包括:
认证授权计费 (AAA )服务器接收可信任的非 3GPP接入网 (TNAN ) 网元发送的携带所述 UE能力指示信息的扩展认证协议(EAP )认证消息; 或 者,
所述 AAA服务器接收所述分组网关发送的携带所述 UE能力指示信息的 更新分组网关地址消息, 其中, 所述分组网关从所述 TNAN网元发送的创建 会话请求消息或者代理绑定更新消息中获得所述 UE能力指示信息; 或者 所述分组网关接收所述 TNAN网元发送的携带所述 UE能力指示信息的 所述创建会话请求消息或者所述代理绑定更新消息。
4、 根据权利要求 3所述的方法, 其中: 持节点 (GGSN )
5、 根据权利要求 4所述的方法, 其中:
当所述决策网元为所述 AAA服务器时,所述决策网元根据所述消息中携 带的所述 UE能力指示信息和 /或本地信息决策是否更新分组网关的标识信息 的步骤包括:
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且处于切换流程时, 则不向归属用户服务器(HSS ) 更新所述 P-GW或所述 GGSN的地址;
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前
UE为 R12 UE且为首次接入时,则向所述 HSS更新所述 P-GW或所述 GGSN 的地址; 或者
当所述 AAA服务器根据所述 UE能力指示信息和 /或本地信息确定当前 当所述决策网元为所述分组网关时, 所述决策网元根据所述消息中携带 的所述 UE能力指示信息和 /或本地信息决策是否更新分组网关的标识信息的 步骤包括:
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 R12 UE且处于切换流程时,则不向所述 HSS或所述 AAA服务器更新所述 分组网关的地址;
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 R12 UE且为首次接入时,则向所述 HSS或所述 AAA服务器更新所述分组 网关的地址; 或者
当所述分组网关才艮据所述 UE能力指示信息和 /或本地信息确定当前 UE 为 Rl 1 UE时,则不向所述 HSS或所述 AAA Λ良务器更新所述分组网关的地址。
6、 根据权利要求 3所述的方法, 其中:
所述决策网元接收信息传递网元发送的携带 UE能力指示信息的消息的 步骤之后, 所述方法还包括:
所述 AAA服务器向所述 HSS发送所述 UE能力指示信息。
7、 一种信息发送方法, 包括:
信息传递网元获得用户设备 ( UE ) 能力指示信息;
所述信息传递网元向决策网元发送携带所述 UE能力指示信息的消息。
8、 根据权利要求 7所述的方法, 其中:
所述 UE能力指示信息为不同版本 UE的区别信息、或者请求的接入点名 称(APN )信息、 或者请求类型、 或者 UE请求的业务类型、 或者分组数据 网络(PDN )类型。
9、 根据权利要求 7或 8所述的方法, 其中:
所述信息传递网元向决策网元发送携带所述 UE能力指示信息的消息的 步骤包括:
可信任的非 3GPP接入网 (TNAN ) 网元向认证授权计费 (AAA )服务 器发送携带所述 UE能力指示信息的扩展认证协议(EAP )认证消息; 或者, 所述 TNAN网元向分组网关发送携带所述 UE能力指示信息的创建会话 请求消息或者代理绑定更新消息。
10、 根据权利要求 9所述的方法, 其中: 持节点 (GGSN ) 。
11、 根据权利要求 9所述的方法, 其中:
所述 TNAN网元向分组网关发送携带所述 UE能力指示信息的创建会话 请求消息或者代理绑定更新消息的步骤之后, 所述方法还包括:
所述分组网关向所述 AAA服务器发送携带所述 UE能力指示信息的更新 分组网关地址消息。
12、 一种认证授权计费 (AAA )服务器, 包括:
接收模块, 其设置成: 接收可信任的非 3GPP接入网(TNAN )网元发送 的携带用户设备 ( UE ) 能力指示信息的扩展认证协议(EAP )认证消息; 或 者, 接收分组网关发送的携带所述 UE能力指示信息的更新分组网关地址消 息; 以及
决策模块, 其设置成: 根据所述 UE能力指示信息和 /或本地信息决策是 否更新所述分组网关的标识信息。
13、 根据权利要求 12所述的 AAA服务器, 其中: 所述决策模块是设置成: 当根据所述 UE能力指示信息和 /或本地信息确 定当前 UE为 R12 UE且处于切换流程时, 则不向归属用户服务器(HSS )更 新分组数据网络网关 (P-GW )或网关通用分组无线服务支持节点 (GGSN ) 的地址; 当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE 据所述 UE能力指示信息和 /或本地信息确定当前 UE为 Rl l UE时,则不向所 述 HSS更新所述 P-GW或所述 GGSN的地址。
14、 一种分组网关, 包括:
接收模块, 其设置成: 接收可信任的非 3GPP接入网(TNAN )网元发送 的携带用户设备 ( UE )能力指示信息的创建会话请求消息或者代理绑定更新 消息; 以及
决策模块, 其设置成: 根据所述 UE能力指示信息和 /或本地信息决策是 否更新所述分组网关的标识信息。
15、 根据权利要求 14所述的分组网关, 其中:
所述决策模块是设置成:
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且处 于切换流程时, 则不向归属用户服务器(HSS )或认证授权计费 (AAA )服 务器更新所述分组网关的地址;
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 R12 UE且为 首次接入时, 则向所述 HSS或所述 AAA Λ良务器更新所述分组网关的地址; 或者
当根据所述 UE能力指示信息和 /或本地信息确定当前 UE为 Rl l UE时, 则不向所述 HSS或所述 AAA服务器更新所述分组网关的地址。
16、 根据权利要求 14或 15所述的分组网关, 还包括:
发送模块, 其设置成: 向所述 AAA服务器发送携带所述 UE能力指示信 息的更新分组网关地址消息。
17、 根据权利要求 16所述的分组网关, 其中: 持节点 (GGSN) 。
18、 一种可信任的非 3GPP接入网 (TNAN) 网元, 包括:
获得模块, 其设置成: 获得用户设备(UE) 能力指示信息; 以及 发送模块, 其设置成: 向认证授权计费(AAA)服务器发送携带所述 UE 能力指示信息的扩展认证协议(EAP)认证消息; 或者, 向分组网关发送携 带所述 UE能力指示信息的创建会话请求消息或者代理绑定更新消息。
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