WO2011054244A1

WO2011054244A1 - Method, device and system for updating packet data network gateway information

Info

Publication number: WO2011054244A1
Application number: PCT/CN2010/077732
Authority: WO
Inventors: 周星月; 朱春晖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-11-05
Filing date: 2010-10-14
Publication date: 2011-05-12
Anticipated expiration: 2012-05-05
Also published as: CN102056134B; CN102056134A

Abstract

The present invention discloses a method, device and system for updating Packet Data Network Gateway (P-GW) information. Said method comprises: when the mobile management protocol type of a mobile terminal device is connecting to the evolved packet data core network through dual stack mobile management protocol technology, a Home Subscriber Server cancels the updating for the P-GW information of the mobile terminal device at Authentication Authorization Accounting server. By employing the present invention, the synchronization efficiency of the present P-GW is improved.

Description

分组数据网络网关信息的更新方法、装置及系统技术领域本发明涉及通信领域，具体而言，涉及一种分组数据网络网关信息的更新方法、装置及系统。背景技术第三代合作伙伴计划（ 3rd Generation Partnership Project, 简称为 3GPP ) 演进的分组系统（ Evolved Packet System, 简称为 EPS )由演进的通用移动通信系统陆地无线接入网（ Evolved Universal Terrestrial Radio Access Network , 简称为 E-UTRAN )、移动管理单元 ( Mobility Management Entity, 简称为 MME )、月艮务网关（Serving Gateway, 简称为 S-GW )、分组数据网络网关 ( Packet Data Network Gateway , 简称为 P-GW或者 PDN GW)、归属用户月艮务器（ Home Subscriber Server, 简称为 HSS )、策略和计费规则功能（ Policy and Charging Rules Function, 简称为 PCRF ) 实体及其他支撑节点组成。图 1是根据相关技术的 EPS的系统架构的示意图，如图 1所示， EPS系统支持与非 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， 3GPP与非 3GPP系统间的锚点为 P-GW。非 3GPP系统被分为可信任非 3GPP IP接入和不可信任非 3GPP IP接入。可信任非 3GPP IP接入可直接通过 S2a接口与 P-GW连接；不可信任非 3GPP IP接入需经过演进的分组数据网关（ Evolved Packet Data Gateway ,简称为 ePDG )与 P-GW相连， ePDG 与 P-GW间的接口为 S2b , S2c提供了 UE与 P-GW之间的用户面相关的控制和移动性支持，其支持的移动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 )。图 1 中， MME 负责移动性管理、非接入层信令的处理和用户移动管理上下文的管理等控制面的相关工作； S-GW是与 E-UTRAN相连的接入网关设备，在 E-UTRAN和 P-GW之间转发数据，并且负责对寻呼等待数据进行緩存； P-GW则是 EPS与分组数据网络 ( Packet Data Network , 简称为 PDN ) 的边界网关，负责 PDN的接入及在 EPS与 PDN间转发数据等功能； PCRF 是策略和计费规则功能实体，它通过接收接口 Rx和运营商网络协议（Internet Protocol,简称为 IP )业务网络相连，获取业务信息，此夕卜，它通过 Gx/Gxa/Gxc 接口与网络中的网关设备相连，负责发起 IP承载的建立，保证业务数据的服务质量（ Quality of Service , 简称为 QoS ) , 并进行计费控制。为了更大程度地满足同时支持多 PDN连接的需求， EPS系统提供了多分组数据网络接入 ( Multi Access PDN CONnectivity, 简称 MAPCON ) 功能，即用户可以同时通过不同的接入网使用多个 PDN连接进行通信和数据访问，并且在连接过程中可以根据不同的业务需求增加新的 PDN连接。图 2是根据相关技术的 MAPCON场景的示意图，如图 2所示，一个移动终端设备拥有 3GPP、无线保真（Wireless Fidelity, 简称为 Wi-Fi ) 两种接口，那么该移动终端设备在支持 MAPCON技术的 EPS系统中能够同时通过 3GPP接入网、 Wi-Fi接入网建立 PDN连接。图 2中，移动终端设备在通过 3GPP接入网建立的两条 PDN连接上分别进行 IP语音（Voice over Internet Protocol, 简称为 VoIP )通信和 Web访问，在通过 Wi-Fi接入网建立的 PDN 连接上使用文件传输协议 ( File Transfer Protocol, 简称为 FTP ) 进行文件下载。移动终端设备可以在 3GPP连接和非 3GPP连接网络中相互切换，其中，当移动终端设备将 3GPP连接切换到非 3GPP连接（具体可以表现为 Wi-Fi ) 网络时，为了保证 Wi-Fi网络能够将原 3GPP上的 PDN连接到对应的分组数据网关上就需要对当前连接的分组数据网关信息进行同步。因此，在移动终端设备新建 PDN连接时， MME会将新建的 PDN连接（这里假设进行 Web 应用的 PDN连接刚刚建立）对应的分组数据网关标识和接入点名字（ Access Point Name, 简称为 APN )告知 HSS更新， HSS在本地进行更新后会将此信息下发给 3GPP认证 4受权计费月艮务器（ Authentication Authorization Accounting Server, 简称为 AAA Server ), 由 3GPP AAA月艮务器通知给 ePDG或者可信非 3GPP网络（假设这里的 Wi-Fi Access是可信的）。图 3是根据相关技术的移动终端设备通过 Wi-Fi接入网新建 PDN连接时，网络进行分组数据网络网关同步更新的交互流程图，描述了基于图 2的场景下移动终端设备通过 Wi-Fi接入网新建 PDN连接的流程，如图 3所示，包括如下的步骤 S302至步骤 S318: 步骤 S302, 移动终端设备通过 Wi-Fi接入 (即，初始接入 Wi-Fi流程 )„ 步 4聚 S304, 移动终端设备进行 EAP认证流程。步骤 S306, 3GPP AAA服务器向 HSS发送更新通知（即，更新信息），通知中包含分组数据网络网关 1的标识信息。步骤 S308 , HSS向 3GPP AAA服务器回复收到更新的响应消息。步骤 S310, 移动终端设备执行 3GPP接入附着流程，通过分组数据网络网关 2访问网络。步骤 S312, 3GPP SGSN/MME (即， 3GPP Access ) 将新建的 PDN连接对应的分组数据网关 2的标识和接入点名字发送给 HSS。步骤 S314, HSS向 3GPP SGSN/MME发送更新确认消息（即，响应更新）。步骤 S316, HSS将新建的 PDN连接对应的分组数据网关 2的标识和接入点名字发送给 AAA 艮务器。步骤 S318, AAA服务器向 HSS回复收到更新的响应消息（即，响应更新）。不过，对于釆用特定移动管理协议的移动终端设备，可以利用其更新前存储在 AAA服务器中的分组数据网关标识和接入点名字进行通信。具体而言，在上述步骤 S316和步骤 S318中，如果移动终端设备釆用特定移动管理协议，且在新建或者拆除其通过 3GPP接入的 PDN连接时， HSS都不是利用上述分组数据网关标识和上述接入点名字进行通信，而是对 AAA月艮务器中的该移动终端设备分组数据网络网关信息进行更新，必然会增加不必要的信息流量，从而降低当前分组数据网络网关同步的效率。发明内容针对 HSS对 AAA服务器中的所有分组数据网络网关信息进行更新使得网络增加不必要的信息流量的问题而提出本发明，为此，本发明的主要目的在于提供一种分组数据网络网关信息的更新方法、装置及系统，以解决上述问题。为了实现上述目的，根据本发明的一个方面，提供了一种分组数据网络网关信息的更新方法，该方法包括：在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，归属用户月艮务器取消在认证授权计费服务器对移动终端设备的分组数据网络网关信息进行更新。优选地，在归属用户服务器取消在认证授权计费服务器对移动终端设备的分组数据网络网关信息进行更新之前，上述方法还包括：认证授权计费服务器在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，向归属用户服务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。优选地，归属用户服务器取消在认证授权计费服务器对移动终端设备的分组数据网络网关信息进行更新包括：归属用户服务器接收来自认证授权计费服务器的消息，其中，消息携带有移动终端设备的移动管理协议类型；归属用户服务器确定移动终端设备的移动管理协议类型为支持双栈的移动管理协议；归属用户服务器根据确定结果，取消在认证授权计费服务器对移动终端设备的分组数据网络网关信息进行更新。优选地，当归属用户月艮务器确定移动终端设备的移动管理协议类型不以双栈移动管理协议技术连接到演进分组数据核心网时，上述方法还包括：归属用户服务器向认证授权计费服务器发送分组数据网络网关信息；归属用户服务器接收来自认证授权计费服务器的分组数据网络网关更新响应信息。优选地，移动管理协议包括以下之一：支持双栈的移动管理协议、代理移动管理协议。为了实现上述目的，根据本发明的另一个方面，提供了一种归属用户服务器，包括：取消模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。优选地，取消模块包括：第一接收子模块，用于接收来自认证授权计费服务器的消息，其中，消息携带有移动终端设备的移动管理协议类型；确定子模块，用于确定移动终端设备的移动管理协议类型为支持双栈的移动管理协议；取消子模块，用于根据确定结果，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。优选地，取消模块还包括：发送子模块，用于向认证授权计费服务器发送分组数据网络网关信息；第二接收子模块，用于接收来自认证授权计费服务器的分组数据网络网关更新响应信息。为了实现上述目的，才艮据本发明的另一个方面，还提供了一种认证 ·ί受权计费服务器，包括：发送模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，向归属用户服务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。为了实现上述目的，根据本发明的另一个方面，又提供了一种分组数据网络网关信息的更新系统，包括归属用户服务器和认证授权计费服务器，其中，归属用户服务器包括：取消模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新；认证授权计费服务器包括：发送模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，向归属用户月艮务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。通过本发明，釆用在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，归属用户月艮务器取消在认证 ·ί受权计费服务器对分组数据网络网关信息进行更新，解决了 HSS对 AAA服务器中的所有分组数据网络网关信息进行更新，使得网络增加不必要的信息流量的问题，进而减少了网络中不必要的信息流量，从而提高了当前分组数据网络网关同步效率。附图说明此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：图 1是根据相关技术的 EPS的系统架构的示意图；图 2是才艮据相关技术的 MAPCON场景的示意图；图 3是根据相关技术的移动终端设备通过 Wi-Fi接入网新建 PDN连接时，网络进行分组数据网络网关同步更新的交互流程图；图 4是才艮据本发明实施例 1的移动终端设备通过 Wi-Fi接入网新建 PDN 连接时，网络进行分组数据网络网关同步更新的交互流程图；图 5是根据本发明实施例 2的移动终端设备通过 Wi-Fi接入网新建 PDN 连接时，网络进行分组数据网络网关同步更新的交互流程图；图 6是才艮据本发明实施例 3的移动终端设备通过 Wi-Fi接入网新建 PDN 连接时， HSS处理分组数据网络网关同步信息触发事件流程；图 7是根据本发明实施例的归属用户服务器的结构框图。具体实施方式需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。以下实施例考虑到相关技术中 HS S对 AAA服务器中的所有分组数据网络网关信息进行更新，使得网络增加不必要的信息流量的问题，提供了一种网络网关信息的更新方法及装置，在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，归属用户月艮务器取消在认证授权计费服务器对分组数据网络网关信息进行更新，以减少网络中不必要的信息流量，并提高当前分组数据网络网关同步效率。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。下面将参考附图并结合实施例来详细说明本发明。根据本发明的实施例，提供了一种分组数据网络网关信息的更新方法，用于归属用户服务器对移动终端设备连接的分组数据网络网关信息进行更新之后，该方法包括：在移动终端设备新建或者拆除通过 3GPP接入的 PDN连接时，如果移动终端设备当前非 3GPP 接入使用的移动管理协议类型为 DSMIP, 归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。通过上述步骤，归属用户服务器取消了对分组数据网络网关信息的更新，减少了网络中不必要的信息流量，提高了当前分组数据网络网关同步效率。优选地，在归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新之前，认证授权计费服务器在移动终端设备的移动管理协议类型为 DSMIP 时，可以向归属用户艮务器发送更新信息，其中，该更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。优选地，在实施时，归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新可以通过如下步骤进行：归属用户服务器接收来自认证授权计费服务器的消息，其中，该消息携带有移动终端设备的移动管理协议类型；归属用户服务器确定移动终端设备的移动管理协议类型为 DSMIP; 归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。优选地，在实施时，当归属用户服务器确定移动终端设备的移动管理协议类型不为 DSMIP 时，归属用户服务器可以向认证授权计费服务器发送分组数据网络网关信息；归属用户服务器接收来自认证授权计费服务器的分组数据网络网关更新响应信息。其中，移动管理十办议可以包括以下之一： DSMIP , 代理移动管理十办议TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method, an apparatus, and a system for updating packet information of a packet data network. BACKGROUND OF THE INVENTION The 3rd Generation Partnership Project (3GPP) evolved Evolved Packet System (EPS) is an evolved universal mobile communication system terrestrial radio access network (Evolved Universal Terrestrial Radio Access Network) , referred to as E-UTRAN), Mobility Management Entity (MME), Serving Gateway (S-GW for short), Packet Data Network Gateway (P-Data Network Gateway, P-referred to as P- GW or PDN GW), Home Subscriber Server (HSS), Policy and Charging Rules Function (PCRF) entity and other supporting nodes. 1 is a schematic diagram of a system architecture of an EPS according to the related art. As shown in FIG. 1, the EPS system supports interworking with a non-3GPP system, wherein interworking with a non-3GPP system is implemented through an S2a/b/c interface, 3GPP and non- The anchor point between 3GPP systems is P-GW. Non-3GPP systems are classified into trusted non-3GPP IP access and untrusted non-3GPP IP access. The trusted non-3GPP IP access can be directly connected to the P-GW through the S2a interface; the untrusted non-3GPP IP access needs to be connected to the P-GW through an Evolved Packet Data Gateway (ePDG), ePDG and The interface between the P-GWs is S2b. The S2c provides user plane-related control and mobility support between the UE and the P-GW. The supported mobility management protocol is Mobile IPv6 Support for Dual Stack. Hosts and Routers, referred to as DSMIPv6). In Figure 1, the MME is responsible for the control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management; the S-GW is the access gateway device connected to the E-UTRAN, in the E- The data is forwarded between the UTRAN and the P-GW, and is responsible for buffering the paging waiting data; the P-GW is a border gateway of the EPS and Packet Data Network (PDN), which is responsible for the access of the PDN and The function of forwarding data between the EPS and the PDN; the PCRF is a policy and charging rule function entity, which is connected to the service network protocol (Internet Protocol, IP for short) through the receiving interface Rx to obtain service information. By Gx/Gxa/Gxc The interface is connected to the gateway device in the network, and is responsible for initiating the establishment of the IP bearer, ensuring the quality of service (QoS) of the service data, and performing charging control. In order to meet the requirements of supporting multiple PDN connections at the same time, the EPS system provides the function of Multi-Access PDN CONnectivity (MAPCON), that is, users can simultaneously use multiple PDN connections through different access networks. Communication and data access are performed, and new PDN connections can be added according to different business needs during the connection process. 2 is a schematic diagram of a MAPCON scenario according to the related art. As shown in FIG. 2, a mobile terminal device has 3GPP and Wireless Fidelity (Wi-Fi) interfaces, and the mobile terminal device supports MAPCON. In the technical EPS system, the PDN connection can be established through the 3GPP access network and the Wi-Fi access network at the same time. In FIG. 2, the mobile terminal device performs Voice over Internet Protocol (VoIP) communication and Web access on the two PDN connections established through the 3GPP access network, and the PDN established through the Wi-Fi access network. The file transfer protocol (File Transfer Protocol, FTP for short) is used for file download. The mobile terminal device can switch between the 3GPP connection and the non-3GPP connection network, wherein when the mobile terminal device switches the 3GPP connection to the non-3GPP connection (which can be expressed as a Wi-Fi) network, in order to ensure that the Wi-Fi network can When the PDN on the original 3GPP is connected to the corresponding packet data gateway, it is necessary to synchronize the currently connected packet data gateway information. Therefore, when the mobile terminal device newly establishes a PDN connection, the MME associates the newly created PDN (here, it is assumed that the PDN connection of the web application is just established) the packet data gateway identifier and the access point name (APN). Inform the HSS to update, the HSS will send this information to the 3GPP Authenticated Authorization Accounting Server (AAA Server) after being updated locally, and the 3GPP AAA server will notify the ePDG or Trusted non-3GPP networks (assuming Wi-Fi Access is trusted here). 3 is an interaction flowchart of a network device performing a synchronous update of a packet data network gateway when a mobile terminal device establishes a PDN connection through a Wi-Fi access network according to the related art, and describes a mobile terminal device passing the Wi-Fi according to the scenario in FIG. The process of establishing a new PDN connection in the access network, as shown in FIG. 3, includes the following steps S302 to S318: Step S302, the mobile terminal device accesses through Wi-Fi (ie, initially accesses the Wi-Fi process) „Step 4 In S304, the mobile terminal device performs an EAP authentication process. Step S306, the 3GPP AAA server sends an update notification (ie, update information) to the HSS, where the notification includes the identification information of the packet data network gateway 1. Step S308, the HSS replies to the 3GPP AAA server with the response message that the update is received. Step S310, the mobile terminal device performs a 3GPP access attach procedure, and accesses the network through the packet data network gateway 2. Step S312, the 3GPP SGSN/MME (ie, 3GPP Access) sends the identifier of the packet data gateway 2 corresponding to the newly created PDN connection and the access point name to the HSS. Step S314, the HSS sends an update confirmation message (ie, response update) to the 3GPP SGSN/MME. Step S316, the HSS sends the identifier of the packet data gateway 2 corresponding to the newly created PDN connection and the name of the access point to the AAA server. Step S318, the AAA server replies to the HSS with an updated response message (ie, responds to the update). However, for a mobile terminal device that uses a specific mobility management protocol, it can communicate using the packet data gateway identifier and the access point name stored in the AAA server before the update. Specifically, in the foregoing step S316 and step S318, if the mobile terminal device uses a specific mobility management protocol, and the new PSN connection is accessed or removed through 3GPP access, the HSS does not use the above packet data gateway identifier and the foregoing The access point name communicates, but the mobile terminal device packet data network gateway information in the AAA server is updated, which inevitably increases unnecessary information traffic, thereby reducing the efficiency of the current packet data network gateway synchronization. SUMMARY OF THE INVENTION The present invention has been made in view of the problem that an HSS updates all packet data network gateway information in an AAA server to increase unnecessary information traffic of the network. To this end, the main object of the present invention is to provide a packet data network gateway information. Update methods, devices, and systems to address the above issues. In order to achieve the above object, according to an aspect of the present invention, a method for updating packet information network gateway information is provided, the method comprising: connecting to an evolved packet data by a dual stack mobility management protocol technology at a mobility management protocol type of a mobile terminal device At the core network, the home subscriber server is cancelled. The packet data network gateway information of the mobile terminal device is updated by the authentication and authorization charging server. Preferably, before the home subscriber server cancels the update of the packet data network gateway information of the mobile terminal device by the authentication and authorization charging server, the method further includes: authenticating the authorization charging server to use the mobile management device type of the mobile terminal device as a dual stack When the mobility management protocol technology is connected to the evolved packet data core network, the update information is sent to the home subscriber server, where the update information is used to indicate that the home subscriber server cancels the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization charging server. Update. Preferably, the home subscriber server cancels the update of the packet data network gateway information of the mobile terminal device by the authentication authorization charging server, and the following: the home subscriber server receives the message from the authentication authorization charging server, where the message carries the mobile terminal device mobile The management protocol type; the home subscriber server determines that the mobile management protocol type of the mobile terminal device is a mobile management protocol supporting dual stack; and the home subscriber server cancels the packet data network gateway information of the mobile terminal device by the authentication and authorization charging server according to the determination result. Update. Preferably, when the home subscriber server determines that the mobility management protocol type of the mobile terminal device is not connected to the evolved packet data core network by the dual stack mobility management protocol technology, the method further includes: the home subscriber server to the authentication authorization charging server Transmitting packet data network gateway information; the home subscriber server receives packet data network gateway update response information from the authentication authorization charging server. Preferably, the mobility management protocol comprises one of the following: a mobility management protocol supporting dual stacks, a proxy mobility management protocol. In order to achieve the above object, according to another aspect of the present invention, a home subscriber server is provided, including: a canceling module, configured to connect to an evolved packet data core by a dual stack mobility management protocol technology at a mobile management protocol type of a mobile terminal device When the network is offline, the information of the packet data network gateway connected to the mobile terminal device is updated in the authentication and authorization accounting server. Preferably, the canceling module includes: a first receiving submodule, configured to receive a message from the authentication and authorization charging server, where the message carries a mobile management protocol type of the mobile terminal device; and a determining submodule, configured to determine the mobile terminal device The mobile management protocol type is a mobile management protocol supporting the dual stack; the canceling submodule is configured to cancel, according to the determination result, updating the packet data network gateway information connected to the mobile terminal device by the authentication and authorization charging server. Preferably, the canceling module further includes: a sending submodule, configured to send packet data network gateway information to the authentication and authorization charging server; and a second receiving submodule, configured to receive the authentication authorized charging service The packet data network gateway of the server updates the response information. In order to achieve the above object, according to another aspect of the present invention, an authentication authentication charging server is further provided, including: a sending module, a mobility management protocol type for a mobile terminal device, and a dual stack mobility management protocol When the technology is connected to the evolved packet data core network, the update information is sent to the home subscriber server, where the update information is used to indicate that the home subscriber server cancels the update of the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization billing server. In order to achieve the above object, according to another aspect of the present invention, an update system for packet data network gateway information is provided, including a home subscriber server and an authentication and authorization billing server, where the home subscriber server includes: a cancel module, When the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by using the dual stack mobility management protocol technology, the packet data network gateway information connected to the mobile terminal device is updated by the authentication and authorization charging server; The server includes: a sending module, configured to send, to the home subscriber server, update information when the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, where the update information is used for The home subscriber server is instructed to cancel the update of the packet data network gateway information connected to the mobile terminal device by the authentication and authorization charging server. According to the present invention, when the mobile management protocol type used in the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology, the home subscriber server cancels the authentication and the authorized charging server to the packet data network. The gateway information is updated to solve the problem that the HSS updates all the packet data network gateway information in the AAA server, so that the network increases unnecessary information traffic, thereby reducing unnecessary information traffic in the network, thereby improving the current packet data. Network gateway synchronization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic diagram of a system architecture of an EPS according to the related art; FIG. 2 is a schematic diagram of a MAPCON scenario according to the related art; FIG. 3 is a mobile terminal device according to the related art through a Wi-Fi access network. When the PDN connection is newly established, the network performs an interactive flow chart of the synchronous update of the packet data network gateway; 4 is an interaction flowchart of a packet data network gateway synchronization update when a mobile terminal device according to Embodiment 1 of the present invention establishes a PDN connection through a Wi-Fi access network; FIG. 5 is a flowchart according to Embodiment 2 of the present invention; An interactive flow chart of the network performing a synchronous update of the packet data network gateway when the mobile terminal device establishes a PDN connection through the Wi-Fi access network; FIG. 6 is a mobile terminal device according to Embodiment 3 of the present invention through the Wi-Fi access network. When a new PDN connection is established, the HSS processes the packet data network gateway synchronization information triggering event flow; FIG. 7 is a structural block diagram of the home subscriber server according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION It should be noted that the steps illustrated in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer executable instructions, and although the logical order is illustrated in the flowchart, in some In this case, the steps shown or described may be performed in a different order than the ones described herein. The following embodiments provide a method and device for updating network gateway information by considering the problem that the HSS updates all packet data network gateway information in the AAA server in the related art, so that the network increases unnecessary information traffic. When the mobility management protocol type of the terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology, the home subscriber server cancels the update of the packet data network gateway information by the authentication authorization charging server to reduce the network. Necessary information flow, and improve the synchronization efficiency of the current packet data network gateway. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. According to an embodiment of the present invention, a method for updating packet data network gateway information is provided. After the home subscriber server updates the packet data network gateway information connected to the mobile terminal device, the method includes: When the PDN connection through the 3GPP access is removed, if the mobile management protocol type used by the mobile terminal device for non-3GPP access is DSMIP, the home subscriber server cancels the packet data network gateway information connected to the mobile terminal device by the authentication and authorization charging server. Update. Through the above steps, the home subscriber server cancels the update of the packet data network gateway information, reduces unnecessary information traffic in the network, and improves the synchronization efficiency of the current packet data network gateway. Preferably, the user at the home subscriber server cancels the authentication and authorization charging server to the mobile terminal device Before the connected packet data network gateway information is updated, the authentication and authorization charging server may send update information to the home server when the mobile management protocol type of the mobile terminal device is DSMIP, where the update information is used to indicate the home user. The server cancels the update of the packet data network gateway information connected to the mobile terminal device by the authentication and authorization charging server. Preferably, in the implementation, the home subscriber server cancels the update of the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization charging server, and may be performed by: the home subscriber server receiving the message from the authentication and authorization charging server, where The message carries the mobile management protocol type of the mobile terminal device; the home subscriber server determines that the mobility management protocol type of the mobile terminal device is DSMIP; and the home subscriber server cancels the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization charging server. Update. Preferably, in implementation, when the home subscriber server determines that the mobility management protocol type of the mobile terminal device is not DSMIP, the home subscriber server may send packet data network gateway information to the authentication authorization charging server; the home subscriber server receives the authentication authorization meter. The packet data network gateway of the fee server updates the response information. Among them, the mobile management ten can include one of the following: DSMIP, proxy mobile management ten

( Proxy Mobile IP , 简称为 ΡΜΙΡ )„ 下面将结合优选实施例进行详细描述。下述优选实施例基于如图 2中场景，一个移动终端设备拥有 3GPP、 Wi-Fi 两种接口，该移动终端设备在支持 MAPCON技术的 EPS系统中能够同时通过 3GPP接入网、 Wi-Fi接入网建立 PDN连接。假设移动终端设备当前通过 3GPP接入网建立了 PDN连接进行 IP语音通信，同时通过 Wi-Fi接入网釆用 DSMIP移动管理协议建立 PDN连接使用文件传输协议进行文件下载，且这两条 PDN 连接都是经由分组数据网络网关 1连接到业务网络。此时移动终端设备又通过 3GPP接入网新建一条经由分组数据网络网关 2的 PDN连接进行 Web访问。实施例 1 本实施例描述了当移动终端设备以 DSMIP方式接入 Wi-Fi网络时，3GPP AAA月艮务器通知 HSS后续无需下发分组数据网络网关信息。图 4是才艮据本发明实施例 1的移动终端设备通过 Wi-Fi接入网新建 PDN 连接时，网络进行分组数据网络网关同步更新的交互流程图，如图 4所示，包括如下的步骤 S402至步骤 S414: · 步骤 S402 , 移动终端设备通过 Wi-Fi接入。步骤 S404 , 移动终端设备进行 EAP认证流程。步骤 S406, AAA服务器向 HSS发送更新通知（即，更新信息），由于移动终端设备釆用 DSMIP移动管理十办议，因 jt匕更新通知中包含告知 HSS无需下发 P-GW更新的指示。步骤 S408, HSS向 AAA服务器回复收到更新的响应消息。步骤 S410, 移动终端设备执行 3GPP接入附着流程，通过分组数据网络网关 2访问网络。步骤 S412, 3GPP Access将新建的 PDN连接对应的分组数据网关 2的标识和接入点名字发送给 HSS。步骤 S414, HSS向 3GPP Access发送更新确认消息（即，响应更新）。实施例 2 本实施例描述了当移动终端设备接入 Wi-Fi网络时， 3GPP AAA服务器通知 HSS当前移动终端设备釆用的移动管理协议类型， HSS 居协议类型决定后续是否向 AAA月艮务器发送分组数据网络网关更新通知。图 5是根据本发明实施例 2的移动终端设备通过 Wi-Fi接入网新建 PDN 连接时，网络进行分组数据网络网关同步更新的交互流程图，如图 5所示，包括如下的步骤 S502至步骤 S520: 步骤 S502 , 移动终端设备通过 Wi-Fi接入。步骤 S504, 移动终端设备进行 EAP认证流程。步骤 S506, 3GPP AAA月艮务器向 HSS发送更新通知，通知中包含分组数据网络网关 1的标识信息等。步骤 S508, HSS向 AAA服务器回复收到更新的响应消息（即，响应更新）。步骤 S510, AAA服务器向 HSS发送更新信息，告知当前使用的移动管理十办议类型。步骤 S512, 移动终端设备执行 3GPP接入附着流程，通过分组数据网络网关 2访问网络。步骤 S514 , 3GPPAccess将新建的 PDN连接对应的分组数据网关 2的标识和接入点名字发送给 HSS。步骤 S516, HSS向 3GPP Access发送更新确认消息。步骤 S518, 如果 HSS在步骤 S510中获知移动终端设备通过代理移动管理协议（ PMIP )接入，那么 HSS向 AAA服务器发送分组数据网络网关 2的更新信息（即，提供更新的 P-GW信息）。步骤 S520, AAA服务器在接收到更新信息之后发送响应消息（即，更新响应）。实施例 3 图 6是本发明实施例 3的移动终端设备通过 Wi-Fi接入网新建 PDN连接时， HSS处理分组数据网络网关同步信息触发事件的流程图，如图 6所示，包括如下的步 4聚 S602至步 4聚 S608: 步骤 S602, HSS接收到来自 MME/SGSN的 P-GW更新信息。步骤 S604, HSS对该更新信息进行存储并向 MME/SGSN发送更新响应消息。步骤 S606, HSS判断是否接收到触发事件（event trigger ), 如果收到，则向 AAA 艮务器发送 P-GW更新信息。否则，直接结束。具体地， HSS只有在收到 AAA服务器发来的触发事件时，才会在后续有分组数据网络网关信息更新时通知 AAA 月艮务器。当移动终端设备以 DSMIP方式通过非 3GPP接入，则 AAA服务器不发送触发事件到 HSS , 否则 AAA服务器发送触发事件。通过上述实施例提供的分组数据网络网关信息的更新方法，在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，归属用户服务器取消在认证授权计费服务器对分组数据网络网关信息进行更新。减少了网络中不必要的信息流量，并提高了当前分组数据网络网关同步效率。在以下实施例中，提供了一种归属用户服务器，该归属用户服务器可以用于实现上述分组数据网络网关信息的更新方法。图 7是才艮据本发明实施例的归属用户服务器的结构框图，如图 7所示，该装置包括取消模块 71 , 其中该取消模块 71包括第一接收子模块 72、确定子模块 73、取消子模块 74、发送子模块 75、第二接收子模块 76, 下面对上述结构进行详细描述。取消模块 71 , 用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。第一接收子模块 72 , 用于接收来自认证授权计费服务器的消息，其中，消息携带有移动终端设备的移动管理协议类型；确定子模块 73 , 连接至第一接收子模块 72 , 用于确定接收子模块 72接收的移动终端设备的移动管理协议类型为支持双栈的移动管理协议；取消子模块 74, 连接至确定子模块 73 , 用于根据确定子模块 73 的确定结果，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。发送子模块 75 , 用于当归属用户服务器确定移动终端设备的移动管理协议类型不为 DSMIP时，向认证授权计费服务器发送分组数据网络网关信息；第二接收子模块 76, 用于接收来自认证授权计费服务器的分组数据网络网关更新响应信息。其中，移动管理十办议包括以下之一： DSMIP、代理移动管理十办议。在以下实施例中，还提供了一种认证授权计费服务器，包括：发送模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，向归属用户月艮务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。在以下实施例中，提供了一种分组数据网络网关信息的更新系统，该系统可以用于实现上述分组数据网络网关信息的更新方法。该系统包括归属用户服务器和认证授权计费服务器，其中归属用户服务器包括：取消模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新；认证授权计费服务器包括：发送模块，用于在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，向归属用户服务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。需要说明的是，上述装置及系统实施例中描述的分组数据网络网关信息的更新系统对应于上述的方法实施例，其具体的实现过程在方法实施例中已经进行过详细说明，在此不再赞述。综上所述，根据上述实施例提供的一种分组数据网络网关信息的更新方法、装置及系统，在移动终端设备的移动管理协议类型以双栈移动管理协议技术连接到演进分组数据核心网时，归属用户服务器取消在认证授权计费服务器对分组数据网络网关信息进行更新。优选地，认证授权计费服务器在移动终端设备的移动管理协议类型为 DSMIP 时，向归属用户服务器发送更新信息，其中，更新信息用于指示归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新；或者归属用户服务器接收来自认证授权计费服务器的移动管理协议类型，并确定该移动管理协议类型为 DSMIP,然后归属用户服务器取消在认证授权计费服务器对移动终端设备连接的分组数据网络网关信息进行更新。通过上述实施例减少了网络中不必要的信息流量，并提高了当前分组数据网络网关同步效率。显然，本领域的技术人员应该明白，上述的本发明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，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，本发明可以有各种更改和变化。凡在本发明的^"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。 (Proxy Mobile IP, abbreviated as ΡΜΙΡ) „ will be described in detail below in conjunction with the preferred embodiments. The following preferred embodiment is based on the scenario in FIG. 2, a mobile terminal device owns 3GPP, Wi-Fi interface, the mobile terminal device In the EPS system supporting MAPCON technology, the PDN connection can be established through the 3GPP access network and the Wi-Fi access network at the same time. It is assumed that the mobile terminal device currently establishes a PDN connection through the 3GPP access network for IP voice communication, and simultaneously passes Wi-Fi. The access network uses the DSMIP mobility management protocol to establish a PDN connection to use the file transfer protocol for file download, and the two PDN connections are connected to the service network via the packet data network gateway 1. At this time, the mobile terminal device passes through the 3GPP access network. Create a new PDN connection via the packet data network gateway 2 for Web access. Embodiment 1 This embodiment describes that when the mobile terminal device accesses the Wi-Fi network in the DSMIP mode, the 3GPP AAA server notifies the HSS that it does not need to be sent. Packet data network gateway information. FIG. 4 is a diagram showing a mobile terminal device according to Embodiment 1 of the present invention newly constructing a PDN through a Wi-Fi access network. When connecting, the network performs an interaction flow chart of the packet data network gateway synchronization update. As shown in FIG. 4, the following steps S402 to S414 are included: Step S402: The mobile terminal device accesses through Wi-Fi. Step S404: The mobile terminal device performs an EAP authentication process. In step S406, the AAA server sends an update notification (ie, update information) to the HSS. Since the mobile terminal device uses the DSMIP mobility management protocol, the jt匕 update notification includes an indication that the HSS does not need to deliver the P-GW update. Step S408, the HSS replies to the AAA server with the response message that the update is received. Step S410: The mobile terminal device performs a 3GPP access attach procedure, and accesses the network through the packet data network gateway 2. Step S412, the 3GPP Access sends the identifier of the packet data gateway 2 corresponding to the newly created PDN connection and the name of the access point to the HSS. Step S414, the HSS sends an update confirmation message (ie, responds to the update) to the 3GPP Access. Embodiment 2 This embodiment describes that when a mobile terminal device accesses a Wi-Fi network, the 3GPP AAA server notifies the HSS of the type of mobility management protocol currently used by the mobile terminal device, and the HSS protocol type determines whether to subsequently follow the AAA server. Send a packet data network gateway update notification. 5 is a flow chart of interaction between a network and a packet data network gateway synchronization update when a mobile terminal device establishes a PDN connection through a Wi-Fi access network according to Embodiment 2 of the present invention. As shown in FIG. 5, the method includes the following steps S502 to Step S520: Step S502: The mobile terminal device accesses through Wi-Fi. Step S504, the mobile terminal device performs an EAP authentication process. Step S506, the 3GPP AAA server sends an update notification to the HSS, where the notification includes the identification information of the packet data network gateway 1. Step S508, the HSS replies to the AAA server with the response message that the update is received (ie, responds to the update). Step S510, the AAA server sends update information to the HSS, and informs the currently used mobile management ten-action type. Step S512, the mobile terminal device performs a 3GPP access attach procedure, and accesses the network through the packet data network gateway 2. Step S514, the 3GPP Access sends the identifier of the packet data gateway 2 corresponding to the newly created PDN connection and the name of the access point to the HSS. Step S516, the HSS sends an update confirmation message to the 3GPP Access. Step S518, if the HSS knows in step S510 that the mobile terminal device accesses through the Proxy Mobile Management Protocol (PMIP), the HSS sends the update information of the packet data network gateway 2 to the AAA server (ie, provides updated P-GW information). Step S520, the AAA server sends a response message (ie, an update response) after receiving the update information. Embodiment 3 FIG. 6 is a flowchart of a CSS processing packet data network gateway synchronization information triggering event when a mobile terminal device establishes a PDN connection through a Wi-Fi access network according to Embodiment 3 of the present invention, as shown in FIG. Step 4: S602 to Step 4: S608: Step S602, the HSS receives P-GW update information from the MME/SGSN. Step S604, the HSS stores the update information and sends an update response message to the MME/SGSN. Step S606, the HSS determines whether an event trigger is received, and if received, sends P-GW update information to the AAA server. Otherwise, it ends directly. Specifically, the HSS not only notifies the AAA server when the subsequent packet data network gateway information is updated when the trigger event sent by the AAA server is received. When the mobile terminal device accesses through non-3GPP in DSMIP mode, the AAA server does not send a trigger event to the HSS, otherwise the AAA server sends a trigger event. Through the method for updating the packet data network gateway information provided by the foregoing embodiment, the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core by the dual stack mobility management protocol technology. At the time of the network, the home subscriber server cancels the update of the packet data network gateway information by the authentication and authorization billing server. It reduces unnecessary information traffic in the network and improves the synchronization efficiency of the current packet data network gateway. In the following embodiments, a home subscriber server is provided, and the home subscriber server can be used to implement the method for updating the packet data network gateway information. FIG. 7 is a structural block diagram of a home subscriber server according to an embodiment of the present invention. As shown in FIG. 7, the apparatus includes a canceling module 71, wherein the canceling module 71 includes a first receiving submodule 72, a determining submodule 73, and canceling. The sub-module 74, the transmitting sub-module 75, and the second receiving sub-module 76 are described in detail below. The canceling module 71 is configured to cancel, when the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology, cancel the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization charging server. Update. The first receiving sub-module 72 is configured to receive a message from the authentication and authorization charging server, where the message carries a mobile management protocol type of the mobile terminal device, and the determining sub-module 73 is connected to the first receiving sub-module 72 for determining The mobile management protocol type of the mobile terminal device received by the receiving sub-module 72 is a mobile management protocol supporting dual stack; the canceling sub-module 74 is connected to the determining sub-module 73 for canceling the authentication and authorization according to the determination result of the determining sub-module 73. The billing server updates the packet data network gateway information connected to the mobile terminal device. The sending sub-module 75 is configured to: when the home subscriber server determines that the mobile management protocol type of the mobile terminal device is not DSMIP, send the packet data network gateway information to the authentication and authorization charging server; and the second receiving sub-module 76 is configured to receive the authentication. The packet data network gateway of the authorized charging server updates the response information. Among them, the Mobile Management Ten Office includes one of the following: DSMIP, Agent Mobile Management Ten. In the following embodiments, an authentication and authorization charging server is further provided, including: a sending module, configured to: when a mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, The home subscriber server sends update information, where the update information is used to instruct the home subscriber server to cancel the update of the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization billing server. In the following embodiments, an update system for packet data network gateway information is provided, and the system may be used to implement the method for updating packet information of the packet data network. The system includes a home subscriber server and an authentication and authorization billing server, wherein the home subscriber server includes: a cancel module, When the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology, canceling, by the authentication and authorization charging server, updating the packet data network gateway information connected by the mobile terminal device; The fee server includes: a sending module, configured to send, to the home subscriber server, update information when the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, where the update information is used to indicate the attribution The user server cancels the update of the packet data network gateway information connected to the mobile terminal device by the authentication and authorization charging server. It should be noted that the update system of the packet data network gateway information described in the foregoing apparatus and system embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and is no longer described herein. Praise. In summary, the method, device, and system for updating packet data network gateway information according to the foregoing embodiments are provided when the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core network by using dual stack mobility management protocol technology. The home subscriber server cancels the update of the packet data network gateway information by the authentication and authorization billing server. Preferably, the authentication and authorization charging server sends update information to the home subscriber server when the mobility management protocol type of the mobile terminal device is DSMIP, where the update information is used to indicate that the home subscriber server cancels the authentication and authorization charging server to the mobile terminal device. The connected packet data network gateway information is updated; or the home subscriber server receives the mobility management protocol type from the authentication and authorization accounting server, and determines that the mobility management protocol type is DSMIP, and then the home subscriber server cancels the authentication and authorization charging server to move The packet data network gateway information connected by the terminal device is updated. The above embodiments reduce unnecessary information traffic in the network and improve the synchronization efficiency of the current packet data network gateway. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of 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, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for updating packet information of a packet data network, comprising:

When the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology, the home subscriber server cancels the authentication and the authorized server to the mobile terminal device. The packet data network gateway information is updated.

The method according to claim 1, wherein the home subscriber server cancels the packet data network gateway information of the mobile terminal device in the authentication and charging server. Before the update, the method further includes:

The authentication authorization charging server sends the update to the home subscriber server when the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology Information, wherein the update information is used to instruct the home subscriber server to cancel the update of the packet data network gateway information that is connected to the mobile terminal device by the authentication server. .

The method according to claim 1, wherein the home subscriber server cancels updating, by the authentication server, the packet data network gateway information of the mobile terminal device. Includes:

Receiving, by the home subscriber server, a message from the authentication and authorization charging server, where the message carries the mobility management protocol type of the mobile terminal device; and the home subscriber server determines the location of the mobile terminal device The mobile management protocol type is the mobile management protocol supporting the dual stack;

And the home subscriber server cancels updating, by the authentication and authorization charging server, the packet data network gateway information of the mobile terminal device.

The method according to claim 3, wherein when the home subscriber server determines that the mobility management protocol type of the mobile terminal device is not connected to the evolved packet data core by a dual stack mobility management protocol technology In the case of the network, the method further includes:

Transmitting, by the home subscriber server, the packet data network gateway information to the authentication server; The home subscriber server receives the packet data network gateway update response information from the authentication and authorization charging server.

The method according to any one of claims 1 to 4, wherein the mobility management protocol comprises one of the following:

Supports dual stack mobile management protocol and proxy mobility management protocol.

6. A home subscriber server, characterized in that it comprises:

a canceling module, configured to cancel, when the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, to connect to the mobile terminal device by the authentication The packet data network gateway information is updated.

The home subscriber server according to claim 6, wherein the canceling module comprises:

a first receiving submodule, configured to receive a message from the authentication and authorization charging server, where the message carries the mobile management protocol type of the mobile terminal device, and a determining submodule, configured to determine the mobile The mobile management protocol type of the terminal device is the mobile management protocol supporting the dual stack;

And a canceling submodule, configured to cancel updating, by the authentication and authorization charging server, the packet data network gateway information that is connected to the mobile terminal device.

The home subscriber server according to claim 7, wherein the canceling module further comprises:

a sending submodule, configured to send the packet data network gateway information to the authentication server;

And a second receiving submodule, configured to receive the packet data network gateway update response information from the authentication and authorization charging server.

9. An authentication and authorization accounting server, comprising:

a sending module, configured to send, to the home subscriber server, update information when the mobility management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, where the update information is used to indicate And the home subscriber server cancels updating, by the authentication and authorization charging server, the packet data network gateway information that is connected to the mobile terminal device. An update system for packet data network gateway information, comprising a home subscriber server and an authentication and authorization billing server, wherein:

The home subscriber server includes: a canceling module, configured to cancel the authentication and authorization billing server to the mobile terminal device when the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by the dual stack mobility management protocol technology The connected packet data network gateway information is updated;

The authentication and authorization charging server includes: a sending module, configured to send, to the home subscriber server, update information when the mobile management protocol type of the mobile terminal device is connected to the evolved packet data core network by using a dual stack mobility management protocol technology, where The update information is used to instruct the home subscriber server to cancel the update of the packet data network gateway information that is connected to the mobile terminal device by the authentication and authorization charging server.