WO2014040464A1 - 资源的释放方法、消息的处理方法、twag及终端 - Google Patents

资源的释放方法、消息的处理方法、twag及终端 Download PDF

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Publication number
WO2014040464A1
WO2014040464A1 PCT/CN2013/081310 CN2013081310W WO2014040464A1 WO 2014040464 A1 WO2014040464 A1 WO 2014040464A1 CN 2013081310 W CN2013081310 W CN 2013081310W WO 2014040464 A1 WO2014040464 A1 WO 2014040464A1
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Prior art keywords
message
twag
dhcp
terminal
release
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PCT/CN2013/081310
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English (en)
French (fr)
Inventor
涂杨巍
朱春晖
刘国燕
周星月
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中兴通讯股份有限公司
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Publication of WO2014040464A1 publication Critical patent/WO2014040464A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release
    • H04W76/32Release of transport tunnels

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for releasing a resource, a method for processing a message, a trusted wireless local area network access gateway (TWAG), and a terminal.
  • TWAG trusted wireless local area network access gateway
  • the Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3GPP) is evolved by the Evolved Universal Terrestrial Radio Access Network (E. - UTRAN), Mobility Management Entity (MME), Serving Gateway (S-GW), Packet Data Network Gateway (PDN GW or P-GW) It consists of a Home Subscriber Server (HSS).
  • E. - UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN GW or P-GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • FIG. 1 is a schematic diagram of a network structure in which a 3GPP network and a non-3GPP network communicate with each other in the related art.
  • the EPS supports interworking with a non-3GPP system, wherein interworking with a non-3GPP system is implemented through an S2a/b/c interface.
  • 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)
  • the 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.
  • the S2a interface uses the Proxy Mobile Internet Protocol (Proxy Mobile Internet Protocol).
  • the S2c interface provides user plane-related control and mobility support between the user equipment (User Equipment, UE for short) and the PDN GW.
  • the supported mobility management protocol is dual.
  • Mobile IPv6 Support for Dual Stack Hosts and Routers DSMIPv6
  • Wireless Local Area Network can be used as a non-
  • the 3GPP system accesses the Evolved Packet Core (EPC) network, which involves the interconnection and interworking of fixed-line mobile convergence that many operators pay attention to.
  • EPC Evolved Packet Core
  • S2a Mobility based On GTP & WLAN access to EPC (SaMOG for short) is mainly to study WLAN as a Trusted Non-3GPP IP Access Network (TNAN).
  • TNAN Trusted Non-3GPP IP Access Network
  • the Universal Mobile Telecommunications System also supports interworking with non-3GPP systems; the difference is that the Serving General Packet Radio Service Support Node (referred to as Serving General Packet Radio Service Support Node, Instead of the MME and the S-GW, the SGSN replaces the P-GW with a Gateway General Packet Radio Service Supporting Node (GGSN).
  • GGSN Gateway General Packet Radio Service Supporting Node
  • the Access Controller (AC) / Broadband Network Gateway (BNG) may be deployed with TWAG or may be configured separately.
  • 2 is a schematic diagram of a network structure in which AC/BNG and TWAG are separately configured in the related art.
  • the network architecture of AC/BNG and TWAG is that the terminal is connected to the AC/BNG through the access point, and then connected through the TWAG.
  • the PDN-GW in the 3GPP core network is used to use the 3GPP service, and the access authentication process required for accessing the part of the terminal needs to be authenticated by TWAG and WLAN authentication authorization (Authentication Authorization and Accounting, abbreviated as AAA)
  • the server performs the AAA server/HSS of the 3GPP core network.
  • a terminal may establish multiple links, but the release of each link is independent of each other, while the traditional WLAN only supports the establishment and release of one link.
  • the WLAN also needs to be extended to support the establishment of multiple links, and in order to distinguish the dynamic Host Configuration Protocol (DHCP) messages of multiple links on one terminal.
  • DHCP Dynamic Host Configuration Protocol
  • another identifier is required, for example, a PDN connection identifier or a virtual local area network (VLAN) identifier, which is completed and associated in the link establishment process.
  • VLAN virtual local area network
  • the embodiments of the present invention provide a resource release method, a message processing method, a TWAG, and a terminal, to solve the problem of how to release a link efficiently.
  • the embodiment of the invention provides a method for releasing a resource, including:
  • a trusted wireless local area network access gateway receives a message sent by a user equipment (UE) or a server;
  • the TWAG sends a delete session request to the packet gateway according to the message or notifies the UE to release the resource.
  • the packet gateway is a packet data network gateway (PDN-GW) or a gateway universal packet radio service support node (GGSN); and/or,
  • PDN-GW packet data network gateway
  • GGSN gateway universal packet radio service support node
  • the server is a Home Subscriber Server (HSS) or an Authentication Authorized Charging (AAA) server.
  • HSS Home Subscriber Server
  • AAA Authentication Authorized Charging
  • the step of receiving, by the TWAG, the message sent by the UE includes:
  • DHCP dynamic host setup protocol
  • the DHCP release message includes one or more packet data network (PDN) connection identifiers or virtual local area networks (VLANs) that need to be logged off.
  • PDN packet data network
  • VLANs virtual local area networks
  • the step of the TWAG sending a delete session request to the packet gateway according to the message includes:
  • the step for the TWAG to send a delete session request to the packet gateway according to the message includes:
  • the step of the TWAG sending a delete session request to the packet gateway according to the message includes:
  • the TWAG searches for all PDN connection identifiers or VLAN identifiers established by the UE according to the terminal identifier, and sends the deletion session request to the packet gateway according to each PDN connection identifier or VLAN identifier.
  • the step of the TWAG receiving the message sent by the UE or the server includes: the TWAG receiving a terminal deregistration request message sent by the server; or the TWAG receiving an Extensible Authentication Protocol (EAP) sent by the UE Deleting a message; the step of the TWAG notifying the UE to perform resource release according to the message includes: the TWAG initiating a re-authentication procedure, and notifying the UE to perform resource release.
  • EAP Extensible Authentication Protocol
  • the step of receiving, by the TWAG, the message sent by the server includes:
  • the step of the TWAG notifying the UE to perform resource release according to the message includes: the TWAG notifying the UE to perform resource release by using a DHCP forced update message, where the DHCP forced update message includes one or more needs
  • the PDN connection identifier or VLAN identifier that is logged off, and the terminal identifier, or the DHCP mandatory update message only contains the terminal identifier.
  • the embodiment of the invention further provides a method for processing a message, including:
  • the user equipment sends a message to the trusted wireless local area network access gateway (TWAG); and the UE receives a dynamic host setup protocol (DHCP) response message or an extensible authentication protocol (EAP) authentication failure message returned by the TWAG.
  • TWAG trusted wireless local area network access gateway
  • DHCP dynamic host setup protocol
  • EAP extensible authentication protocol
  • the step of the UE sending a message to the TWAG includes:
  • DHCP release message includes one or more packet data network (PDN) connection identifiers or virtual local area network (VLAN) identifiers, and terminal identifiers, or
  • PDN packet data network
  • VLAN virtual local area network
  • the step of the UE receiving the DHCP response message returned by the TWAG includes: The UE receives a DHCP response message returned by the TWAG according to the DHCP release message.
  • the step of the UE sending a message to the TWAG includes:
  • the step of the UE receiving the EAP authentication failure message returned by the TWAG includes: receiving, by the UE, the EAP authentication failure message returned by the TWAG according to the EAP deregistration message, and releasing the resource according to the EAP authentication failure message .
  • the method further includes:
  • the DHCP forced update message is a terminal deregistration request sent by the TWAG in receiving a Home Subscriber Server (HSS) or an Authentication Authorization Accounting (AAA) server. Sent after the message.
  • HSS Home Subscriber Server
  • AAA Authentication Authorization Accounting
  • the embodiment of the invention further provides a credit wireless local area network access gateway (TWAG), comprising: a receiving module, configured to: receive a message sent by a user equipment (UE) or a server; and a processing module, configured to: The message sends a delete session request to the packet gateway or notifies the UE to release the resource.
  • TWAG credit wireless local area network access gateway
  • the packet gateway is a packet data network gateway (PDN-GW) or a gateway universal packet radio service support node (GGSN); and/or
  • PDN-GW packet data network gateway
  • GGSN gateway universal packet radio service support node
  • the server is a Home Subscriber Server (HSS) or an Authentication Authorized Charging (AAA) server.
  • the receiving module is configured to: receive a dynamic host setup protocol (DHCP) release message sent by the UE, where the DHCP release message includes one or more packet data networks (PDNs) that need to be logged out. a connection identifier or a virtual local area network (VLAN) identifier, and a terminal identifier, or the DHCP release message includes only the terminal identifier;
  • DHCP dynamic host setup protocol
  • VLAN virtual local area network
  • the processing module is configured to:
  • the processing module is set to:
  • the processing module is configured to:
  • the receiving module is configured to: receive a terminal deregistration request message sent by the server; or, receive an Extensible Authentication Protocol (EAP) logout message sent by the UE; and the processing module is configured to : Initiating a re-authentication procedure, notifying the UE to release the resource.
  • the receiving module is configured to: receive a terminal deregistration request message sent by the server;
  • the processing module is configured to: notify the UE to perform resource release by using a DHCP forced update message, where the DHCP forced update message includes one or more PDN connection identifiers or VLAN identifiers that need to be logged off, and a terminal identifier. Or the DHCP forced update message only contains the terminal identifier.
  • the embodiment of the invention further provides a user equipment (UE), including:
  • a sending module configured to: send a message to a trusted wireless local area network access gateway (TWAG);
  • TWAG trusted wireless local area network access gateway
  • a processing module configured to: receive a Dynamic Host Setup Protocol (DHCP) response message or an Extensible Authentication Protocol (EAP) authentication failure message returned by the TWAG.
  • DHCP Dynamic Host Setup Protocol
  • EAP Extensible Authentication Protocol
  • the sending module is configured to: send a DHCP release message to the TWAG, where the DHCP release message includes one or more packet data network (PDN) connection identifiers or virtual local area networks that need to be logged off ( a VLAN) identifier, and a terminal identifier, or the DHCP release message includes only the terminal identifier;
  • PDN packet data network
  • VLAN virtual local area networks
  • the processing module is configured to: receive a DHCP response message returned by the TWAG according to the DHCP release message.
  • the sending module is configured to: send an EAP logout message to the TWAG;
  • the processing module is configured to: receive an EAP authentication failure message returned by the TWAG according to the EAP deregistration message, and release the resource according to the EAP authentication failure message.
  • the processing module is further configured to: receive a DHCP forced update message returned by the TWAG, where the DHCP forced update message is that the TWAG is receiving a Home Subscriber Server (HSS) or an authentication authorized charging ( AAA)
  • HSS Home Subscriber Server
  • AAA authentication authorized charging
  • the terminal can release one PDN link and multiple pieces by using one message.
  • FIG. 1 is a schematic diagram of a network structure in which a 3GPP network and a non-3GPP network are interworking in the related art
  • FIG. 2 is a schematic diagram of a network structure in which AC/BNG and TWAG are separately set in the related art
  • FIG. 3 is a schematic diagram of a terminal initiating a link according to an embodiment of the present invention. Signaling flow chart of the method of resource release;
  • FIG. 4 is a signaling flow diagram of a method for a terminal to initiate resource release of multiple links according to an embodiment of the present invention
  • FIG. 7 is a flow chart of a method for a method for a terminal to initiate link resource release by using an EAP message according to an embodiment of the present invention
  • 8 is a signaling flowchart of a method for a network side device to initiate partial link resource release by using a DHCP forced update message according to an embodiment of the present invention
  • 9 is a signaling flowchart of a method for a network side device to initiate a release of all link resources by using a DHCP forced update message according to an embodiment of the present invention
  • FIG. 10 is a schematic structural diagram of a TWAG according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • the embodiment of the invention provides a method for resource release, which is described based on the TWAG side, and the method includes the following steps:
  • Step 101 The TWAG receives a message sent by the UE or the server.
  • the server is an HSS or AAA server
  • Step 102 The TWAG sends a delete session request to the packet gateway according to the message or notifies the UE to release the resource.
  • the packet gateway is a PDN-GW or a GGSN.
  • the embodiment of the present invention further provides a method for processing a message, where the method is described based on the UE side, and the method includes the following steps:
  • Step 201 The UE sends a message to the TWAG.
  • Step 202 The UE receives a DHCP response message or an EAP authentication failure message returned by the TWAG.
  • the method further includes: receiving, by the UE, a DHCP mandatory update message returned by the TWAG, where the DHCP forced update message is sent by the TWAG after receiving a terminal deregistration request message sent by the HSS or the AAA server.
  • Embodiment 1 a solution for the network detachment triggered by the terminal side when the UE accesses the mobile core network through the non-3GPP system is mainly provided.
  • FIG. 3 is a signaling flow diagram of a method for a terminal to initiate resource release of a link according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step S301 The terminal sends a DHCP release message to the TWAG through the WLAN access network to trigger the release of the resource on the network side.
  • the client ID is used to identify the terminal device, and in order to log out the current multiple PDN links of the terminal.
  • the DHCP release message needs to carry the PDN connection identifier or VLAN ID that needs to be logged off.
  • Step S302 The TWAG sends a delete session request to the PDN-GW/GGSN according to the PDN connection identifier or the VLAN identifier.
  • Step S303 The PDN-GW/GGSN returns a delete session response to the TWAG.
  • Step S304 The PDN-GW/GGSN sends an updated PDN-GW address to the HSS/AAA server.
  • Step S305 The PDN-GW/GGSN initiates an IP Connectivity Access Network (IP-CAN) session termination to the Home Policy and Charging Rules Function (H-PCRF) to release the network. Side resources.
  • IP-CAN IP Connectivity Access Network
  • H-PCRF Home Policy and Charging Rules Function
  • Step S306 The TWAG sends a DHCP response message to the terminal through the WLAN network.
  • FIG. 4 is a signaling flow diagram of a method for a terminal to initiate resource release of multiple links according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:
  • Step S401 The terminal sends a DHCP release message to the TWAG through the WLAN access network to trigger the release of the resource on the network side.
  • the client ID is used to identify the terminal device, and in order to cancel the current multiple PDN links in the terminal.
  • the DHCP release message needs to carry multiple PDN connection identifiers or VLAN identifiers that need to be logged out.
  • Step S402 The TWAG sends a delete session request to the PDN-GW1/GGSN1 according to the PDN connection identifier or the VLAN identifier.
  • Step S403 PDN-GW1/GGSN1 returns a delete session response to the TWAG.
  • Step S404 PDN-GW1/GGSN1 sends an updated PDN-GW address to the HSS/AAA server.
  • Step S405 PDN-GW1/GGSN1 initiates an IP-CAN session termination to the H-PCRF to release the network side resources.
  • Step S406 The TWAG sends a delete session request to the PDN-GW2/GGSN2 according to the PDN connection identifier or the VLAN identifier.
  • Step S407 PDN-GW2/GGSN2 returns a delete session response to the TWAG.
  • Step S408 The PDN-GW2/GGSN2 sends an updated PDN-GW address to the HSS/AAA server.
  • Step S409 PDN-GW2/GGSN2 initiates an IP-CAN session termination to the H-PCRF to release the network side resources.
  • Step S410 The TWAG sends a DHCP response message to the terminal through the WLAN network.
  • FIG. 5 is a signaling flow diagram of a method for a terminal to initiate resource release of all links according to an embodiment of the present invention. As shown in FIG. 5, the method according to the third preferred embodiment includes the following steps:
  • Step S501 The terminal sends a DHCP release message to the TWAG through the WLAN access network to trigger the release of the resource on the network side.
  • the terminal For all the PDN links that need to be logged out, the terminal only needs to carry the terminal identifier in the DHCP release message. It is not required to carry all PDN connection IDs or VLAN IDs that are logged out.
  • Step S502 The TWAG searches for all PDN connection identifiers or VLAN identifiers established by the terminal according to the Client ID, and sends a delete session request to the PDN-GW1/GGSN1.
  • Step S503 PDN-GW1/GGSN1 returns a delete session response to the TWAG.
  • Step S504 PDN-GW1/GGSN1 sends an updated PDN-GW address to the HSS/AAA server.
  • Step S505 PDN-GW1/GGSN1 initiates an IP-CAN session termination to the H-PCRF to release Corresponding network side resources.
  • Step S506 The TWAG sends a delete session request to the PDN-GW2/GGSN2 according to the found PDN connection identifier or the VLAN identifier.
  • Step S507 PDN-GW2/GGSN2 returns a delete session response to the TWAG.
  • Step S508 PDN-GW2/GGSN2 sends an updated PDN-GW address to the HSS/AAA server.
  • Step S509 PDN-GW2/GGSN2 initiates an IP-CAN session termination to the H-PCRF to release the corresponding network side resource.
  • the above only exemplifies the deregistration process of two PDN connections.
  • the PDN connection established by the terminal may be greater than two, and the resources may be released in a similar manner.
  • Step S510 The TWAG sends a DHCP response message to the terminal through the WLAN network.
  • Embodiment 4 FIG. As shown in FIG. 6, the method includes the following steps:
  • Step S601 The HSS/AAA server triggers the detach process by sending a terminal registration request message to the TWAG.
  • Step S602 The TWAG initiates a re-authentication procedure after receiving the terminal detach request message.
  • Step S604 The TWAG subsequently transmits the terminal EAP authentication failure to the AAA message.
  • Step S605 an access point (AP) / a resident gateway (Residental Gateway,
  • RG informs the terminal that the EAP authentication fails, and the terminal will subsequently release the resources.
  • Step S606 The TWAG sends a delete session request to the PDN-GW/GGSN.
  • Step S607 The PDN-GW/GGSN returns a delete session response to the TWAG.
  • Step S608 the PDN-GW/GGSN sends an update PDN-GW to the HSS/AAA server. Address. Network side resources.
  • Step S610 The TWAG returns a terminal registration response to the HSS/AAA server.
  • FIG. 7 is a flowchart of a signaling method for a terminal to initiate link resource release by using an EAP message according to an embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:
  • Step S701 The terminal sends an EAP-logoff (EAP-logoff) message to the TWAG through the WLAN access network to trigger the network side device to release the terminal resource.
  • EAP-logoff EAP-logoff
  • Step S702 The TWAG exchanges a charging request/response message with the HSS/AAA server to stop charging.
  • Step S703 The TWAG initiates a re-authentication process after receiving the charging response message.
  • Step S704 The TWAG subsequently transmits the terminal EAP authentication failure to the AC through the AAA message.
  • Step S705 The AP/RG notifies the terminal that the EAP authentication fails, and the terminal subsequently releases the resource.
  • Step S707 The PDN-GW/GGSN returns a delete session response to the TWAG.
  • Step S708 The PDN-GW/GGSN sends an updated PDN-GW address to the HSS/AAA server. Network side resources.
  • FIG. 8 is a signaling flowchart of a method for a network side device to initiate partial link resource release by using a DHCP forced update message according to an embodiment of the present invention. As shown in FIG. 8, the method includes the following steps: Step S801: The HSS/AAA server triggers the detach process by sending a terminal registration request message to the TWAG.
  • Step S802 The TWAG notifies the terminal to release the resource by using a DHCP forced update message, where the DHCP forced update message carries the terminal identifier and one or more PDN connection identifiers or VLAN identifiers, and is used to release one or more associated with the terminal. PDN connection.
  • this DHCP forced update message may pass through AC/BNG and AP/RG, and may also trigger the release of network resources of the WLAN access network.
  • Step S803 The TWAG sends a delete session request to the PDN-GW/GGSN.
  • Step S804 the PDN-GW/GGSN returns a delete session response to the TWAG.
  • Step S805 The PDN-GW/GGSN sends an updated PDN-GW address to the HSS/AAA server. Network side resources.
  • Step S807 The TWAG returns a terminal registration response to the HSS/AAA server.
  • FIG. 9 is a signaling flowchart of a method for a network side device to initiate a release of all link resources by using a DHCP forced update message according to an embodiment of the present invention. As shown in FIG. 9, the method includes the following steps:
  • Step S901 The HSS/AAA server triggers the detach process by sending a terminal registration request message to the TWAG.
  • Step S902 The TWAG notifies the terminal to release the resource by using a DHCP forced update message.
  • the DHCP forced update message carries a terminal identifier, which is used to release all PDN connections associated with the terminal.
  • this DHCP forced update message may pass through AC/BNG and AP/RG, and may also trigger the release of network resources of the WLAN access network.
  • Step S903 The TWAG sends a delete session request to the PDN-GW/GGSN.
  • Step S904 the PDN-GW/GGSN returns a delete session response to the TWAG.
  • Step S905 the PDN-GW/GGSN sends an update PDN-GW to the HSS/AAA server. Address. Network side resources.
  • Step S907 The TWAG returns a terminal registration response to the HSS/AAA server.
  • the terminal can release one PDN link and multiple pieces by using one message.
  • PDN links or all PDN links of the entire terminal enhance the effective use of network resources.
  • FIG. 10 it is a schematic structural diagram of a TWAG according to an embodiment of the present invention.
  • the TWAG includes a receiving module 11 and a processing module 12, where:
  • the receiving module 11 is configured to: receive a message sent by the UE or the server;
  • the processing module 12 is configured to: send a delete session request to the packet gateway according to the message or notify the UE to release the resource.
  • the packet gateway is a PDN-GW or a GGSN; the server is an HSS or an AAA server.
  • the receiving module 11 is configured to: receive a DHCP release message sent by the UE, where the DHCP release message includes one or more PDN connection identifiers or VLAN identifiers that need to be logged off, and a terminal identifier, or the The DHCP release message includes only the terminal identifier.
  • the processing module 12 is configured to: send the deletion to the packet gateway according to the PDN connection identifier or the VLAN identifier.
  • the processing module 12 is configured to: send the deletion session request to the packet gateway according to each PDN connection identifier or VLAN identifier, when the DHCP release message includes multiple PDN connection identifiers or VLAN identifiers; Or, when the DHCP release message includes only the terminal identifier, the processing module 12 is configured to: search for all PDN connection identifiers or VLAN identifiers established by the UE according to the terminal identifier, and according to each The PDN connection identifier or VLAN ID sends the delete session request to the packet gateway.
  • the receiving module 11 is configured to: receive a terminal deregistration request message sent by the server; or receive an EAP logout message sent by the UE; the processing module 12 is configured to: initiate a re-authentication process , notify the UE to release the resource.
  • the receiving module 11 is configured to: receive a terminal de-registration request message sent by the server; the processing module 12 is configured to: notify the terminal to release the resource by using a DHCP forced update message, where the DHCP The forced update message includes one or more PDN connection identifiers or VLAN identifiers that need to be logged off, and a terminal identifier, or the DHCP mandatory update message only includes the terminal identifier.
  • the TWAG cooperates with the UE to enable the UE to release a PDN link, multiple PDN links, or all PDN links of the entire terminal by using one message, thereby enhancing the effective use of network resources.
  • FIG. 11 it is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • the UE includes a sending module 21 and a processing module 22, where:
  • the sending module 21 is configured to: send a message to the TWAG;
  • the processing module 22 is configured to: receive a DHCP response message or an EAP authentication failure message returned by the TWAG.
  • the sending module 21 is configured to: send a DHCP release message to the TWAG, where the DHCP release message includes one or more PDN connection identifiers or VLAN identifiers that need to be logged off, and a terminal identifier, Or the DHCP release message includes only the terminal identifier; the processing module 22 is configured to: receive the DHCP response message returned by the TWAG according to the DHCP release message.
  • the sending module 21 is configured to: send an EAP logout message to the TWAG; the processing module 22 is configured to: receive an EAP authentication failure message returned by the TWAG according to the EAP logout message, according to The EAP authentication failure message releases the resource.
  • processing module 22 is further configured to: receive a DHCP forced update message returned by the TWAG, where the DHCP forced update message is sent by the TWAG after receiving a terminal deregistration request message sent by the HSS or the AAA server. .
  • a PDN link, multiple PDN links, or all PDN links of the entire terminal can be released by using one message, thereby enhancing the effective utilization of network resources.
  • modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
  • the terminal can release one PDN link and multiple pieces by using one message.
  • PDN links or all PDN links of the entire terminal enhance the effective use of network resources.

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Abstract

一种资源的释放方法、消息的处理方法、TWAG及终端。所述资源的释放方法包括:TWAG接收UE或服务器发送的消息;以及所述TWAG根据所述消息向分组网关发送删除会话请求或通知所述UE进行资源释放。

Description

资源的释放方法、 消息的处理方法、 TWAG及终端
技术领域
本发明涉及通信领域, 尤其涉及一种资源的释放方法、 消息的处理方法、 4受信无线局或网接入网关 (Trusted Wireless Local Area Network Access Gateway, TWAG )及终端。 背景技术
第三代合作伙伴计划 ( 3rd Generation Partnership Project , 简称为 3GPP ) 的演进的分组系统( Evolved Packet System, 简称为 EPS ) 由演进的通用地面 无线接入网 ( Evolved Universal Terrestrial Radio Access Network , 简称为 E-UTRAN ) 、 移动管理单元 ( Mobility Management Entity, 简称为 MME ) 、 服务网关( Serving Gateway, 简称为 S-GW )、分组数据网络网关( Packet Data Network Gateway, 简称为 PDN GW或 P-GW )和归属用户服务器(Home Subscriber Server, 简称为 HSS )组成。
图 1是相关技术中 3GPP网络与非 3GPP网络互通的网络结构示意图,如 图 1所示, EPS支持与非 3GPP系统的互通, 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, 简称为 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 , 简称为 ΡΜΙΡ )进行信息交互;另外, S2c接口提供了用户设备( User Equipment , 简称为 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, 简称为 DSMIPv6), 其可用于不可信任非 3GPP和可信任 非 3GPP接入。
无线局域网 (Wireless Local Area Network, 简称为 WLAN ) 可以作为非 3GPP系统接入演进的分组核心( Evolved Packet Core, 简称为 EPC ) 网络, 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 , 简称为 SaMOG )课题主要是研究 WLAN作为可信任 的非 3GPP接入网络( Trusted Non-3GPP IP Access Network , 简称为 TNAN ) , 且 UE通过 S2a接口接入 EPC网络的互连互通问题。
此夕卜 , 通用移动通信系统 ( Universal Mobile Telecommunications System , 简称为 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 , 简 称为 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 , 简称为 GGSN )代 替了 P-GW。
根据实际的网络部署情况, 接入控制器(Access Controller, 简称为 AC ) /宽带网络网关 ( Broadband Network Gateway , 简称为 BNG )可能跟 TWAG 合设部署,也可能分设。 图 2是相关技术中 AC/BNG与 TWAG分离设置的网 络结构示意图, 如图 2所示, AC/BNG与 TWAG分设的网络架构是终端通过 接入点连接到 AC/BNG上面, 然后通过 TWAG接入到 3GPP核心网中的 PDN-GW, 从而使用 3GPP的业务, 而对这部分终端的接入所需要的接入鉴 权过程, 则需要依次通过 TWAG和 WLAN鉴权授权计费 ( Authentication Authorization and Accounting, 简称为 AAA )服务器向 3GPP核心网的 AAA 服务器 /HSS进行。
在 3GPP技术中, 一个终端可能会建立多条链路, 但对于每一条链路的 释放都是相互独立的, 而传统的 WLAN只支持一条链路的建立和释放。 当通 过 WLAN接入 3GPP核心网时, WLAN也需要被扩展而支持建立多条链路, 而为了区分一个终端上的多个链路的动态主机设置协议 ( Dynamic Host Configuration Protocol , DHCP ) 消息, 除了终端标识之外还需要另外一个标 识, 例如, PDN连接标识或虚拟局域网(Virtual Local Area Network, VLAN ) 标识, 这些都在链路建立过程中完成并关联。 针对如何高效释放其中一条、 多条或全部链路的问题, 目前尚未提出有效的解决方案。 因此, 上述问题在 通过非 3GPP系统接入 UMTS核心网等其他网络也同样存在。
发明内容
本发明实施例提供了一种资源的释放方法、 消息的处理方法、 TWAG及 终端, 以解决如何高效地释放链路的问题。
本发明实施例提供了一种资源的释放方法, 包括:
授信无线局域网接入网关( TWAG )接收用户设备 ( UE )或服务器发送 的消息; 以及
所述 TWAG根据所述消息向分组网关发送删除会话请求或通知所述 UE 进行资源释放。
可选地, 所述分组网关为分组数据网络网关 (PDN-GW )或网关通用分 组无线业务支持节点 (GGSN ) ; 和 /或,
所述服务器为归属用户服务器(HSS )或鉴权授权计费(AAA )服务器。 可选地, 所述 TWAG接收 UE发送的消息的步骤包括:
所述 TWAG接收所述 UE发送的动态主机设置协议( DHCP )释放消息, 其中, 所述 DHCP释放消息中包含一个或多个需要被注销的分组数据网络 ( PDN )连接标识或虚拟局域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端标识;
当所述 DHCP释放消息中包含一个 PDN连接标识或 VLAN标识时 , 所 述 TWAG根据所述消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据所述 PDN连接标识或所述 VLAN标识向所述分组网关 发送所述删除会话请求; 或者
当所述 DHCP释放消息中包含多个 PDN连接标识或 VLAN标识时 , 所 述 TWAG根据所述消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据各个 PDN连接标识或 VLAN标识向所述分组网关发送 所述删除会话请求; 或者 当所述 DHCP释放消息中仅包含所述终端标识时 ,所述 TWAG根据所述 消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据所述终端标识查找所述 UE建立的所有 PDN连接标识 或 VLAN标识, 并根据各个 PDN连接标识或 VLAN标识向所述分组网关发 送所述删除会话请求。
可选地, 所述 TWAG接收 UE或服务器发送的消息的步骤包括: 所述 TWAG接收所述服务器发送的终端去注册请求消息; 或者 所述 TWAG接收所述 UE发送的可扩展认证协议(EAP ) 注销消息; 所述 TWAG根据所述消息通知所述 UE进行资源释放的步骤包括: 所述 TWAG发起重鉴权流程, 通知所述 UE进行资源释放。
可选地, 所述 TWAG接收服务器发送的消息的步骤包括:
所述 TWAG接收所述服务器发送的终端去注册请求消息;
所述 TWAG根据所述消息通知所述 UE进行资源释放的步骤包括: 所述 TWAG通过 DHCP强制更新消息来通知所述 UE进行资源释放,其 中,所述 DHCP强制更新消息中包含一个或多个需要被注销的 PDN连接标识 或 VLAN标识, 以及终端标识, 或者所述 DHCP强制更新消息仅包含终端标 识。
本发明实施例还提供了一种消息的处理方法, 包括:
用户设备 ( UE )向授信无线局域网接入网关(TWAG )发送消息; 以及 所述 UE接收所述 TWAG返回的动态主机设置协议( DHCP )响应消息 或可扩展认证协议(EAP )鉴权失败消息。
可选地, 所述 UE向 TWAG发送消息的步骤包括:
所述 UE向所述 TWAG发送 DHCP释放消息; 其中, 所述 DHCP释放消 息中包含一个或多个需要被注销的分组数据网络(PDN )连接标识或虚拟局 域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端 标识;
所述 UE接收所述 TWAG返回的 DHCP响应消息的步骤包括: 所述 UE接收所述 TWAG根据所述 DHCP释放消息返回的 DHCP响应消 息。
可选地, 所述 UE向 TWAG发送消息的步骤包括:
所述 UE向所述 TWAG发送 EAP注销消息;
所述 UE接收所述 TWAG返回的 EAP鉴权失败消息的步骤包括: 所述 UE接收所述 TWAG根据所述 EAP注销消息返回的 EAP鉴权失败 消息, 并根据所述 EAP鉴权失败消息释放资源。
可选地, 所述方法还包括:
所述 UE接收所述 TWAG返回的 DHCP强制更新消息,其中,所述 DHCP 强制更新消息为所述 TWAG在接收归属用户服务器(HSS )或鉴权授权计费 ( AAA )服务器发送的终端去注册请求消息后发送的。
本发明实施例另提供了一种授信无线局域网接入网关(TWAG ) , 包括: 接收模块, 其设置成: 接收用户设备(UE )或服务器发送的消息; 以及 处理模块, 其设置成: 根据所述消息向分组网关发送删除会话请求或通 知所述 UE进行资源释放。
可选地, 所述分组网关为分组数据网络网关 (PDN-GW )或网关通用分 组无线业务支持节点 (GGSN ) ; 和 /或
所述服务器为归属用户服务器(HSS )或鉴权授权计费(AAA )服务器。 可选地, 所述接收模块是设置成: 接收所述 UE发送的动态主机设置协 议 ( DHCP )释放消息, 其中, 所述 DHCP释放消息中包含一个或多个需要 被注销的分组数据网络(PDN )连接标识或虚拟局域网 (VLAN )标识, 以 及终端标识, 或者所述 DHCP释放消息仅包含终端标识;
当所述 DHCP释放消息中包含一个 PDN连接标识或 VLAN标识时 , 所 述处理模块是设置成:
根据所述 PDN连接标识或所述 VLAN标识向所述分组网关发送所述删 除会话请求; 或者
当所述 DHCP释放消息中包含多个 PDN连接标识或 VLAN标识时, 所 述处理模块是设置成:
根据各个 PDN连接标识或 VLAN标识向所述分组网关发送所述删除会 话请求; 或者
当所述 DHCP释放消息中仅包含所述终端标识时, 所述处理模块是设置 成:
根据所述终端标识查找所述 UE建立的所有 PDN连接标识或 VLAN标 识, 并根据各个 PDN连接标识或 VLAN标识向所述分组网关发送所述删除 会话请求。
可选地, 所述接收模块是设置成: 接收所述服务器发送的终端去注册请 求消息; 或者, 接收所述 UE发送的可扩展认证协议(EAP )注销消息; 以及 所述处理模块是设置成: 发起重鉴权流程, 通知所述 UE进行资源释放。 可选地, 所述接收模块是设置成: 接收所述服务器发送的终端去注册请 求消息; 以及
所述处理模块是设置成: 通过 DHCP强制更新消息来通知所述 UE进行 资源释放, 其中, 所述 DHCP强制更新消息中包含一个或多个需要被注销的 PDN连接标识或 VLAN标识 , 以及终端标识 ,或者所述 DHCP强制更新消息 仅包含终端标识。
本发明实施例又提供了一种用户设备(UE ) , 包括:
发送模块, 其设置成: 向授信无线局域网接入网关(TWAG )发送消息; 以及
处理模块,其设置成:接收所述 TWAG返回的动态主机设置协议( DHCP ) 响应消息或可扩展认证协议(EAP )鉴权失败消息。
可选地, 所述发送模块是设置成: 向所述 TWAG发送 DHCP释放消息; 其中, 所述 DHCP释放消息中包含一个或多个需要被注销的分组数据网络 ( PDN )连接标识或虚拟局域网 ( VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端标识; 以及
所述处理模块是设置成:接收所述 TWAG根据所述 DHCP释放消息返回 的 DHCP响应消息。 可选地, 所述发送模块是设置成: 向所述 TWAG发送 EAP注销消息; 以及
所述处理模块是设置成: 接收所述 TWAG根据所述 EAP注销消息返回 的 EAP鉴权失败消息, 并根据所述 EAP鉴权失败消息释放资源。
可选地,所述处理模块还设置成:接收所述 TWAG返回的 DHCP强制更 新消息,其中, 所述 DHCP强制更新消息为所述 TWAG在接收归属用户服务 器 (HSS )或鉴权授权计费 (AAA )服务器发送的终端去注册请求消息后发 送的。
本发明实施例中, 终端能够使用一条消息分别释放一条 PDN链路、 多条
PDN链路或整个终端所有的 PDN链路, 加强了网络资源的有效利用。 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示意图; 图 2是相关技术中 AC/BNG与 TWAG分离设置的网络结构示意图; 图 3是本发明实施例的终端发起一条链路的资源释放的方法的信令流程 图;
图 4是本发明实施例的终端发起多条链路的资源释放的方法的信令流程 图;
Figure imgf000009_0001
图;
图 7是本发明实施例的终端通过 EAP消息发起链路资源释放的方法的信 令流程图;
图 8是本发明实施例的网络侧设备通过 DHCP强制更新消息发起部分链 路资源释放的方法的信令流程图; 图 9是本发明实施例的网络侧设备通过 DHCP强制更新消息发起全部链 路资源释放的方法的信令流程图;
图 10是本发明实施例的 TWAG的结构示意图;
图 11是本发明实施例的 UE的结构示意图。
本发明的较佳实施方式
下文中将参考附图来详细说明本发明实施例。 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组合。
本发明实施例提供了一种资源释放的方法,该方法基于 TWAG侧进行描 述, 该方法包括如下步骤:
步骤 101、 TWAG接收 UE或服务器发送的消息;
其中, 该服务器为 HSS或 AAA服务器;
步骤 102、 TWAG根据所述消息向分组网关发送删除会话请求或通知 UE 进行资源释放。
其中, 所述分组网关为 PDN-GW或 GGSN。
本发明实施例还提供了一种消息的处理方法, 该方法基于 UE侧进行描 述, 该方法包括如下步骤:
步骤 201、 UE向 TWAG发送消息。
步骤 202、 UE接收所述 TWAG返回的 DHCP响应消息或 EAP鉴权失败 消息。
该方法还包括: 所述 UE接收所述 TWAG返回的 DHCP强制更新消息, 其中,该 DHCP强制更新消息为所述 TWAG在接收 HSS或 AAA服务器发送 的终端去注册请求消息后发送的。
下面从 TWAG和 UE交互的角度对本发明实施例进行说明:
在以下实施例中, 主要提供了 UE通过非 3GPP系统接入移动核心网时, 终端侧触发的网络去附着的方案。 实施例一
图 3是本发明实施例的终端发起一条链路的资源释放的方法的信令流程 图, 如图 3所示, 该方法包括如下步骤:
步骤 S301、终端通过 WLAN接入网向 TWAG发送 DHCP释放消息来触 发网络侧的资源释放; 根据 DHCP消息的匹配原则, Client ID用来标识终端 设备, 而为了注销终端当前多条 PDN链路中的一条, 需要在本 DHCP释放消 息中携带需要被注销的 PDN连接标识或者 VLAN标识。
步骤 S302、 TWAG根据 PDN连接标识或 VLAN标识向 PDN-GW/GGSN 发送删除会话请求。
步骤 S303、 PDN-GW/GGSN向 TWAG返回删除会话响应。
步骤 S304、 PDN-GW/GGSN向 HSS/AAA服务器发送更新 PDN-GW地 址。
步骤 S305、 PDN-GW/GGSN向归属地策略和计费规则功能( Home Policy and Charging Rules Function , H-PCRF )发起 IP连通接入网络( IP Connectivity Access Network, IP-CAN )会话终止来释放网络侧资源。
步骤 S306、 TWAG通过 WLAN网络向终端发送 DHCP响应消息。
实施例二
图 4是本发明实施例的终端发起多条链路的资源释放的方法的信令流程 图, 如图 4所示, 该方法包括如下步骤:
步骤 S401、终端通过 WLAN接入网向 TWAG发送 DHCP释放消息来触 发网络侧的资源释放; 根据 DHCP消息的匹配原则, Client ID用来标识终端 设备, 而为了注销终端当前所有 PDN链路中的多条, 需要在本 DHCP释放消 息中携带需要被注销的多个 PDN连接标识或者 VLAN标识。
步骤 S402、 TWAG根据 PDN连接标识或 VLAN标识向 PDN-GW1/GGSN1 发送删除会话请求。 步骤 S403、 PDN-GWl/GGSNl向 TWAG返回删除会话响应。
步骤 S404、 PDN-GWl/GGSNl向 HSS/AAA服务器发送更新 PDN-GW地 址。
步骤 S405、 PDN-GWl/GGSNl向 H-PCRF发起 IP-CAN会话终止来释放 网络侧资源。
步骤 S406、 TWAG根据 PDN连接标识或 VLAN标识向 PDN-GW2/GGSN2 发送删除会话请求。
步骤 S407、 PDN-GW2/GGSN2向 TWAG返回删除会话响应。
步骤 S408、PDN-GW2/GGSN2向 HSS/AAA服务器发送更新 PDN-GW地 址。
步骤 S409、 PDN-GW2/GGSN2向 H-PCRF发起 IP-CAN会话终止来释放 网络侧资源。
步骤 S410、 TWAG通过 WLAN网络向终端发送 DHCP响应消息。
实施例三
图 5是本发明实施例的终端发起全部链路的资源释放的方法的信令流程 图, 如图 5所示, 根据本优选实施例三的方法包括如下步骤:
步骤 S501、终端通过 WLAN接入网向 TWAG发送 DHCP释放消息来触 发网络侧的资源释放; 对于需要注销终端当前建立的所有 PDN链路, 只需要 在本 DHCP释放消息中携带终端标识即可, 而不需要携带被注销的所有 PDN 连接标识或者 VLAN标识。
步骤 S502、 TWAG根据 Client ID查找终端建立的所有 PDN连接标识或 VLAN标识, 并向 PDN-GWl/GGSNl发送删除会话请求。
步骤 S503、 PDN-GWl/GGSNl向 TWAG返回删除会话响应。
步骤 S504、 PDN-GWl/GGSNl向 HSS/AAA服务器发送更新 PDN-GW地 址。
步骤 S505、 PDN-GWl/GGSNl向 H-PCRF发起 IP-CAN会话终止来释放 对应的网络侧资源。
步骤 S506、 TWAG根据查找出来的 PDN连接标识或 VLAN标识向 PDN-GW2/GGSN2发送删除会话请求。
步骤 S507、 PDN-GW2/GGSN2向 TWAG返回删除会话响应。
步骤 S508、 PDN-GW2/GGSN2向 HSS/AAA服务器发送更新 PDN-GW地 址。
步骤 S509、 PDN-GW2/GGSN2向 H-PCRF发起 IP-CAN会话终止来释放 对应的网络侧资源。
值得注意的是上述仅仅举例了两个 PDN连接的注销流程,实际上终端建 立的 PDN连接可能大于两条, 均可以釆用类似的方式进行资源释放。
步骤 S510、 TWAG通过 WLAN网络向终端发送 DHCP响应消息。
实施例四 图, 如图 6所示, 该方法包括如下步骤:
步骤 S601、 HSS/AAA服务器通过向 TWAG发送终端去注册请求消息来 触发去附着流程。
步骤 S602、 TWAG在收到终端去附着请求消息之后发起重鉴权流程。 步骤 S603、 重鉴权流程中, HSS/AAA服务器会通过 AAA消息告知终端 EAP鉴权失败, 同时释放终端占用的网络资源。
步骤 S604、 TWAG随后也通过 AAA消息将终端 EAP鉴权失败传递给
AC。
步骤 S605、 接入点(Access Point, AP ) /驻地网关( Residental Gateway,
RG )通知终端 EAP鉴权失败, 终端随后将进行资源释放。
步骤 S606、 TWAG向 PDN-GW/GGSN发送删除会话请求。
步骤 S607、 PDN-GW/GGSN向 TWAG返回删除会话响应。
步骤 S608、 PDN-GW/GGSN向 HSS/AAA服务器发送更新 PDN-GW地 址。 络侧资源。
步骤 S610、 TWAG向 HSS/AAA服务器返回终端去注册响应。
实施例五
图 7是本发明实施例的终端通过 EAP消息发起链路资源释放的方法的信 令流程图, 如图 7所示, 该方法包括如下步骤:
步骤 S701、终端通过 WLAN接入网向 TWAG发送 EAP注销( EAP-logoff ) 消息来触发网络侧设备进行终端资源的释放。
步骤 S702、 TWAG与 HSS/AAA服务器之间交互计费请求 /响应消息来停 止计费。
步骤 S703、 TWAG在收到计费响应消息之后发起重鉴权流程。
步骤 S704、 TWAG随后也通过 AAA消息将终端 EAP鉴权失败传递给 AC。
步骤 S705、 AP/RG通知终端 EAP鉴权失败, 终端随后将进行资源释放。 步骤 S706、 TWAG向 PDN-GW/GGSN发送删除会话请求。
步骤 S707、 PDN-GW/GGSN向 TWAG返回删除会话响应。
步骤 S708、 PDN-GW/GGSN向 HSS/AAA服务器发送更新 PDN-GW地 址。 络侧资源。
实施例六
图 8是本发明实施例的网络侧设备通过 DHCP强制更新消息发起部分链 路资源释放的方法的信令流程图, 如图 8所示, 该方法包括如下步骤: 步骤 S801、 HSS/AAA服务器通过向 TWAG发送终端去注册请求消息来 触发去附着流程。
步骤 S802、 TWAG通过 DHCP强制更新消息来通知终端进行资源释放, 此 DHCP强制更新消息中会携带终端标识和一个或者多个 PDN连接标识或者 VLAN标识, 用于释放一个或者多个与此终端关联的 PDN连接。 另外, 此 DHCP强制更新消息会经过 AC/BNG和 AP/RG, 也可能触发 WLAN接入网 的网络资源释放。
步骤 S803、 TWAG向 PDN-GW/GGSN发送删除会话请求。
步骤 S804、 PDN-GW/GGSN向 TWAG返回删除会话响应。
步骤 S805、 PDN-GW/GGSN向 HSS/AAA服务器发送更新 PDN-GW地 址。 络侧资源。
步骤 S807、 TWAG向 HSS/AAA服务器返回终端去注册响应。
实施例七
图 9是本发明实施例的网络侧设备通过 DHCP强制更新消息发起全部链 路资源释放的方法的信令流程图, 如图 9所示, 该方法包括如下步骤:
步骤 S901、 HSS/AAA服务器通过向 TWAG发送终端去注册请求消息来 触发去附着流程。
步骤 S902、 TWAG通过 DHCP强制更新消息来通知终端进行资源释放, 此 DHCP 强制更新消息中会携带终端标识, 用于释放所有与此终端关联的 PDN连接。 另外, 此 DHCP强制更新消息会经过 AC/BNG和 AP/RG, 也可 能触发 WLAN接入网的网络资源释放。
步骤 S903、 TWAG向 PDN-GW/GGSN发送删除会话请求。
步骤 S904、 PDN-GW/GGSN向 TWAG返回删除会话响应。
步骤 S905、 PDN-GW/GGSN向 HSS/AAA服务器发送更新 PDN-GW地 址。 络侧资源。
步骤 S907、 TWAG向 HSS/AAA服务器返回终端去注册响应。
通过上述实施例, 终端能够使用一条消息分别释放一条 PDN链路、 多条
PDN链路或整个终端所有的 PDN链路, 加强了网络资源的有效利用。
如图 10所示, 是本发明实施例的 TWAG的结构示意图, 该 TWAG包括 接收模块 11和处理模块 12, 其中:
接收模块 11设置成: 接收 UE或服务器发送的消息; 以及
处理模块 12设置成:根据所述消息向分组网关发送删除会话请求或通知 UE进行资源释放。
其中, 所述分组网关为 PDN-GW或 GGSN; 所述服务器为 HSS或 AAA 服务器。
另外, 所述接收模块 11是设置成: 接收 UE发送的 DHCP释放消息, 其 中, 所述 DHCP释放消息中包含一个或多个需要被注销的 PDN连接标识或 VLAN标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端标识; 当 所述 DHCP释放消息中包含一个 PDN连接标识或 VLAN标识时, 所述处理 模块 12是设置成: 根据所述 PDN连接标识或 VLAN标识向分组网关发送所 述删除会话请求; 或者, 当所述 DHCP释放消息中包含多个 PDN连接标识或 VLAN标识时,所述处理模块 12是设置成:根据各个 PDN连接标识或 VLAN 标识向分组网关发送所述删除会话请求; 或者, 当所述 DHCP释放消息中仅 包含所述终端标识时, 所述处理模块 12是设置成: 4艮据所述终端标识查找所 述 UE建立的所有 PDN连接标识或 VLAN标识, 并根据各个 PDN连接标识 或 VLAN标识向分组网关发送所述删除会话请求。
类似地, 所述接收模块 11是设置成: 接收所述服务器发送的终端去注册 请求消息; 或者,接收所述 UE发送的 EAP注销消息; 所述处理模块 12是设 置成: 发起重鉴权流程, 通知 UE进行资源释放。 类似地, 所述接收模块 11是设置成: 接收所述服务器发送的终端去注册 请求消息; 所述处理模块 12是设置成: 通过 DHCP强制更新消息来通知终端 进行资源释放, 其中, 所述 DHCP强制更新消息中包含一个或多个需要被注 销的 PDN连接标识或 VLAN标识 , 以及终端标识 , 或者所述 DHCP强制更 新消息仅包含终端标识。
上述实施例中, TWAG通过与 UE的配合, 使 UE能够使用一条消息分 别释放一条 PDN链路、 多条 PDN链路或整个终端所有的 PDN链路, 加强了 网络资源的有效利用。
如图 11所示, 是本发明实施例的 UE的结构示意图, 该 UE包括发送模 块 21和处理模块 22, 其中:
发送模块 21设置成: 向 TWAG发送消息; 以及
处理模块 22设置成:接收所述 TWAG返回的 DHCP响应消息或 EAP鉴 权失败消息。
可选地, 所述发送模块 21是设置成: 向所述 TWAG发送 DHCP释放消 息; 其中, 所述 DHCP释放消息中包含一个或多个需要被注销的 PDN连接标 识或 VLAN标识,以及终端标识,或者所述 DHCP释放消息仅包含终端标识; 所述处理模块 22是设置成: 接收所述 TWAG根据所述 DHCP释放消息返回 的 DHCP响应消息。
可选地,所述发送模块 21是设置成:向所述 TWAG发送 EAP注销消息; 所述处理模块 22是设置成: 接收所述 TWAG根据所述 EAP注销消息返回的 EAP鉴权失败消息, 根据该 EAP鉴权失败消息释放资源。
另外, 所述处理模块 22还设置成: 接收所述 TWAG返回的 DHCP强制 更新消息,其中,该 DHCP强制更新消息为所述 TWAG在接收 HSS或鉴 AAA 服务器发送的终端去注册请求消息后发送的。
釆用上述 UE, 能够使用一条消息分别释放一条 PDN链路、 多条 PDN链 路或整个终端所有的 PDN链路, 加强了网络资源的有效利用。 显然, 本领域的技术人员应该明白, 上述的本发明实施例的各模块或各 步骤可以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或 者分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执 行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执 行, 并且在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤 制作成单个集成电路模块来实现。 这样, 本发明实施例不限制于任何特定的 硬件和软件结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明实施例可以有各种更改和变化。 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明 的保护范围之内。
工业实用性
本发明实施例中, 终端能够使用一条消息分别释放一条 PDN链路、 多条
PDN链路或整个终端所有的 PDN链路, 加强了网络资源的有效利用。

Claims

权 利 要 求 书
1、 一种资源的释放方法, 包括:
授信无线局域网接入网关( TWAG )接收用户设备 ( UE )或服务器发送 的消息; 以及
所述 TWAG根据所述消息向分组网关发送删除会话请求或通知所述 UE 进行资源释放。
2、 根据权利要求 1所述的方法, 其中:
所述分组网关为分组数据网络网关 (PDN-GW )或网关通用分组无线业 务支持节点 (GGSN ) ; 和 /或
所述服务器为归属用户服务器(HSS )或鉴权授权计费(AAA )服务器。
3、 根据权利要求 1或 2所述的方法, 其中:
所述 TWAG接收 UE发送的消息的步骤包括:
所述 TWAG接收所述 UE发送的动态主机设置协议( DHCP )释放消息, 其中, 所述 DHCP释放消息中包含一个或多个需要被注销的分组数据网络 ( PDN )连接标识或虚拟局域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端标识;
当所述 DHCP释放消息中包含一个 PDN连接标识或 VLAN标识时 , 所 述 TWAG根据所述消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据所述 PDN连接标识或所述 VLAN标识向所述分组网关 发送所述删除会话请求; 或者
当所述 DHCP释放消息中包含多个 PDN连接标识或 VLAN标识时 , 所 述 TWAG根据所述消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据各个 PDN连接标识或 VLAN标识向所述分组网关发送 所述删除会话请求; 或者
当所述 DHCP释放消息中仅包含所述终端标识时,所述 TWAG根据所述 消息向分组网关发送删除会话请求的步骤包括:
所述 TWAG根据所述终端标识查找所述 UE建立的所有 PDN连接标识 或 VLAN标识, 并根据各个 PDN连接标识或 VLAN标识向所述分组网关发 送所述删除会话请求。
4、 根据权利要求 1或 2所述的方法, 其中:
所述 TWAG接收 UE或服务器发送的消息的步骤包括:
所述 TWAG接收所述服务器发送的终端去注册请求消息; 或者 所述 TWAG接收所述 UE发送的可扩展认证协议( EAP ) 注销消息; 所述 TWAG根据所述消息通知所述 UE进行资源释放的步骤包括: 所述 TWAG发起重鉴权流程, 通知所述 UE进行资源释放。
5、 根据权利要求 1或 2所述的方法, 其中:
所述 TWAG接收服务器发送的消息的步骤包括:
所述 TWAG接收所述服务器发送的终端去注册请求消息;
所述 TWAG根据所述消息通知所述 UE进行资源释放的步骤包括: 所述 TWAG通过 DHCP强制更新消息来通知所述 UE进行资源释放,其 中,所述 DHCP强制更新消息中包含一个或多个需要被注销的 PDN连接标识 或 VLAN标识, 以及终端标识, 或者所述 DHCP强制更新消息仅包含终端标 识。
6、 一种消息的处理方法, 包括:
用户设备 ( UE )向授信无线局域网接入网关(TWAG )发送消息; 以及 所述 UE接收所述 TWAG返回的动态主机设置协议 ( DHCP )响应消息 或可扩展认证协议( EAP )鉴权失败消息。
7、 根据权利要求 6所述的方法, 其中:
所述 UE向 TWAG发送消息的步骤包括:
所述 UE向所述 TWAG发送 DHCP释放消息; 其中, 所述 DHCP释放消 息中包含一个或多个需要被注销的分组数据网络(PDN )连接标识或虚拟局 域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端 标识; 所述 UE接收所述 TWAG返回的 DHCP响应消息的步骤包括:
所述 UE接收所述 TWAG根据所述 DHCP释放消息返回的 DHCP响应消 息。
8、 根据权利要求 6所述的方法, 其中:
所述 UE向 TWAG发送消息的步骤包括:
所述 UE向所述 TWAG发送 EAP注销消息;
所述 UE接收所述 TWAG返回的 EAP鉴权失败消息的步骤包括: 所述 UE接收所述 TWAG根据所述 EAP注销消息返回的 EAP鉴权失败 消息, 并根据所述 EAP鉴权失败消息释放资源。
9、 根据权利要求 6-8任一权利要求所述的方法, 还包括:
所述 UE接收所述 TWAG返回的 DHCP强制更新消息,其中,所述 DHCP 强制更新消息为所述 TWAG在接收归属用户服务器(HSS )或鉴权授权计费 ( AAA )服务器发送的终端去注册请求消息后发送的。
10、 一种授信无线局域网接入网关 (TWAG ) , 包括:
接收模块, 其设置成: 接收用户设备(UE )或服务器发送的消息; 以及 处理模块, 其设置成: 根据所述消息向分组网关发送删除会话请求或通 知所述 UE进行资源释放。
11、 根据权利要求 10所述的 TWAG, 其中:
所述分组网关为分组数据网络网关 (PDN-GW )或网关通用分组无线业 务支持节点 (GGSN ) ; 和 /或
所述服务器为归属用户服务器(HSS )或鉴权授权计费(AAA )服务器。
12、 根据权利要求 10或 11所述的 TWAG, 其中:
所述接收模块是设置成:接收所述 UE发送的动态主机设置协议( DHCP ) 释放消息, 其中, 所述 DHCP释放消息中包含一个或多个需要被注销的分组 数据网络 ( PDN )连接标识或虚拟局域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放消息仅包含终端标识;
当所述 DHCP释放消息中包含一个 PDN连接标识或 VLAN标识时 , 所 述处理模块是设置成:
根据所述 PDN连接标识或所述 VLAN标识向所述分组网关发送所述删 除会话请求; 或者
当所述 DHCP释放消息中包含多个 PDN连接标识或 VLAN标识时 , 所 述处理模块是设置成:
根据各个 PDN连接标识或 VLAN标识向所述分组网关发送所述删除会 话请求; 或者
当所述 DHCP释放消息中仅包含所述终端标识时, 所述处理模块是设置 成:
根据所述终端标识查找所述 UE建立的所有 PDN连接标识或 VLAN标 识, 并根据各个 PDN连接标识或 VLAN标识向所述分组网关发送所述删除 会话请求。
13、 根据权利要求 10或 11所述的 TWAG, 其中:
所述接收模块是设置成: 接收所述服务器发送的终端去注册请求消息; 或者, 接收所述 UE发送的可扩展认证协议(EAP ) 注销消息; 以及
所述处理模块是设置成: 发起重鉴权流程, 通知所述 UE进行资源释放。
14、 根据权利要求 10或 11所述的 TWAG, 其中:
所述接收模块是设置成: 接收所述服务器发送的终端去注册请求消息; 以及
所述处理模块是设置成: 通过 DHCP强制更新消息来通知所述 UE进行 资源释放, 其中, 所述 DHCP强制更新消息中包含一个或多个需要被注销的 PDN连接标识或 VLAN标识 , 以及终端标识 ,或者所述 DHCP强制更新消息 仅包含终端标识。
15、 一种用户设备 ( UE ) , 包括:
发送模块, 其设置成: 向授信无线局域网接入网关(TWAG )发送消息; 以及
处理模块,其设置成:接收所述 TWAG返回的动态主机设置协议( DHCP ) 响应消息或可扩展认证协议 ( EAP )鉴权失败消息。
16、 根据权利要求 15所述的 UE, 其中:
所述发送模块是设置成: 向所述 TWAG发送 DHCP释放消息; 其中, 所 述 DHCP释放消息中包含一个或多个需要被注销的分组数据网络(PDN )连 接标识或虚拟局域网 (VLAN )标识, 以及终端标识, 或者所述 DHCP释放 消息仅包含终端标识; 以及
所述处理模块是设置成:接收所述 TWAG根据所述 DHCP释放消息返回 的 DHCP响应消息。
17、 根据权利要求 15所述的 UE, 其中:
所述发送模块是设置成: 向所述 TWAG发送 EAP注销消息; 以及 所述处理模块是设置成: 接收所述 TWAG根据所述 EAP注销消息返回 的 EAP鉴权失败消息, 并根据所述 EAP鉴权失败消息释放资源。
18、 根据权利要求 15-17任一权利要求所述的 UE, 其中:
所述处理模块还设置成: 接收所述 TWAG返回的 DHCP强制更新消息, 其中,所述 DHCP强制更新消息为所述 TWAG在接收归属用户服务器( HSS ) 或鉴权授权计费 (AAA )服务器发送的终端去注册请求消息后发送的。
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