CN102143559B - Multi-implemented method and an access gateway packet data network connection, the system - Google Patents

Multi-implemented method and an access gateway packet data network connection, the system Download PDF

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CN102143559B
CN102143559B CN 201010110399 CN201010110399A CN102143559B CN 102143559 B CN102143559 B CN 102143559B CN 201010110399 CN201010110399 CN 201010110399 CN 201010110399 A CN201010110399 A CN 201010110399A CN 102143559 B CN102143559 B CN 102143559B
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access
gateway
data
pdn
current
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CN102143559K1 (en )
CN102143559A (en )
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毕以峰
周娜
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中兴通讯股份有限公司
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Abstract

本发明公开了实现多分组数据网络连接的方法,所述方法主要包括:接入网关在接收到终端发送的当前要接入PDN的网络标识后,根据当前要接入PDN的网络标识,获取当前要接入PDN的数据网关标识,或在已保存的各个PDN的信息表中找到当前要接入PDN的数据网关标识;再根据所获取的数据网关标识,从数据网关中获取所述终端连接当前要接入PDN的IP地址并返回给所述终端,完成所述终端与当前要接入PDN之间连接的建立过程。 The present invention discloses a method for multi-packet data network connection, the method including: an access gateway to the terminal after receiving the current sent to the PDN access network identifier, PDN access according to the current network identifier, obtain the current to access the PDN gateway identifier data, or found in the individual information table saved in the current PDN access to PDN gateway identifier data; re-acquiring the data from the gateway terminal in accordance with the acquired identification data gateway connection to the current IP address of the PDN to be accessed and returned to the terminal, and completing the current terminal to the access procedure to establish a connection between the PDN. 另外,本发明还公开了实现多分组数据网络连接的接入网关和系统,通过本发明的方案,可以在实际应用中实现终端与多个PDN同时建立连接。 Further, the present invention also discloses a system to achieve multiple access gateway and packet data network connection by the present invention, the terminal can be realized in practice with a plurality of PDN connection is established simultaneously.

Description

实现多分组数据网络连接的方法及接入网关、系统 Multi-implemented method and an access gateway packet data network connection, the system

技术领域 FIELD

[0001]本发明涉及移动通信领域,尤其涉及实现多分组数据网络连接的方法及接入网关、系统。 [0001] The present invention relates to the field of mobile communications and more particularly relates to a method to achieve a multi-packet data network connections and access gateway system.

背景技术 Background technique

[0002]第三代合作伙伴计划2(3GPP2,3rd Generat1n Partnership Project2)定义的码分多址(CDMA,Code Divis1n Multiple Access)2000 Ix和高速分组数据(HRI3D,HighRate Packet Data)网络架构,主要由移动基站/接入终端(MS/AT,Mobile Stat1n/AccessTerminal)、无线接入网络(RAN,Rad1 Access Network)、分组业务数据节点(PDSN,PacketData Serving Node)、家乡代理/本地移动销点(HA/LMA,Home Agent/Local MobilityAnchor)、远程用户拨号认证系统/认证授权计费服务器(RADIUS/ AAA , RemoteAuthenticat1n Dial In UserService/Authenticat1n Authorizat1n Accounting)以及其他核心网络设备和支撑节点组成。 [0002] Third Generation Partnership Project 2 (3GPP2,3rd Generat1n Partnership Project2) defined by Code Division Multiple Access (CDMA, Code Divis1n Multiple Access) 2000 Ix and high-speed packet data (HRI3D, HighRate Packet Data) network architecture, mainly by mobile base stations / access terminals (MS / AT, mobile Stat1n / AccessTerminal), a radio access network (RAN, Rad1 access network), packet data service node (PDSN, PacketData Serving node), home agent / local mobility pin point (HA / LMA, Home Agent / Local MobilityAnchor), remote authentication dial In user / AAA server (RADIUS / AAA, RemoteAuthenticat1n dial In UserService / Authenticat1n Authorizat1n accounting), and other core network nodes and a support device.

[0003]图1给出了CDMA2000 Ix和HRI3D分组数据业务(PDS,Packet DataService)部分网络结构,其中: [0003] FIG. 1 shows HRI3D CDMA2000 Ix and packet data service (PDS, Packet DataService) part of the network structure, wherein:

[0004] MS/ΑΤ通过其无线接口与RAN连接; [0004] MS / ΑΤ RAN is connected via its wireless interface;

[0005] RAN 包括基站(BS,Base S tati ο η )和分组控制功能(PCF,P acke tControlFunct1n)模块,其中BS主要用于在小区建立覆盖小区的无线网络,为MS/AT提供分组数据业务的空中接口;PCF模块主要用于控制所建立无线网络的资源,转发BS和H)SN之间的消息。 [0005] RAN comprises a base station (BS, Base S tati ο η) and a packet control function (PCF, P acke tControlFunct1n) module, where the BS is used to establish a wireless network covering a cell in a cell, providing packet data services for MS / AT air interface; the PCF module is used to control the resources of a wireless network established, the forwarding of messages between the BS and H) SN.

[0006] PDSN通过RAN为MS/ΑΤ提供到互联网或应用服务器的接入服务,PDSN的主要作用是建立、维护MS/ΑΤ和I3DSN之间的点到点协议(PPP,Point to PointProtocol)会话、接收并执行RADIUS/AAA对MS/ΑΤ的认证、授权和计费、路由来自和发往分组数据网络(PDN,PacketData Network)的数据包等; [0006] PDSN MS / ΑΤ provide access to the Internet or to the application server through the RAN, PDSN main role is to establish, maintain Point to Point Protocol (PPP, Point to PointProtocol) session between the MS / ΑΤ and I3DSN, receive and execute RADIUS / AAA for MS / ΑΤ authentication, authorization, and accounting routes from and to a packet data network (PDN, PacketData network) packet and the like;

[0007] RADIUS/AAA的主要作用是管理MS/AT访问网络的权限、具有访问权限的MS/AT所得到的服务、并完成对正在使用网络资源的MS/ΑΤ的计费等; The main role of [0007] RADIUS / AAA is the rights management MS / AT to access the network, MS / AT has access to the services received, and completion of the MS are using network resources / ΑΤ billing and so on;

[0008] HA/LMA用于在移动IP/代理移动IP(MIP/PMIP,Mobile IP/Proxy MobileIP)场景下,通过roSN、RADIUS/AAA为MS/AT分配家乡地址、转发上行数据包和下行数据包、以及完成数据包的隧道封装等。 [0008] HA / LMA to the mobile IP / Proxy Mobile IP under (MIP / PMIP, Mobile IP / Proxy MobileIP) scene, by roSN, RADIUS / AAA for the MS / AT assigned home address, and forward the uplink data packet downlink data packet and completion packet tunnel encapsulation and the like. 一般,不同的PDN会对应不同的HA/LMA,例如,图1中的HA/LMA I用于为MS/ΑΤ分配连接PDN I的IP地址,HA/LMA 2则用于为MS/ΑΤ分配连接PDN 2的IP地址,HA/LMAn则用于为MS/ΑΤ分配连接TON η的IP地址。 In general, it is different corresponding to different PDN HA / LMA, for example, in FIG. 1 HA / LMA I for MS / ΑΤ PDN connection allocated IP address of the I, HA / LMA 2 is used for MS / ΑΤ allocated for the connection 2, the IP address of the PDN, HA / LMAn is used for the MS / ΑΤ connected TON η assigned IP address.

[0009]目前,为了实现MS/ΑΤ通过CDMA系统,同时建立与多个I3DN的连接,即多TON连接,当前已经公布的大致方案是:MS/AT、roSN、HA/LMA、RADIUS/AAA通过PPP会话协商和代理移动因特网协议版本4或版本6(PMIPv4/v6,Proxy Mobile Internet Protocol vers1n 4/vers1n 6)等协议进行交互,来建立第一个PDN连接;然后,再通过动态主机控制协议(DHCP,DynamicHost Configurat1n Protocol)协商和PMIPv4/v6协议,来建立第二、第三等多个TON连接,实现同时拜访多个TON的目的。 [0009] Currently, in order to achieve MS / ΑΤ a CDMA system, at the same time establish a connection with a plurality of I3DN, i.e., multi-connected TON, the current embodiment is substantially the published are: MS / AT, roSN, HA / LMA, RADIUS / AAA via PPP session negotiation and proxy mobile Internet protocol version 4 or version 6 (PMIPv4 / v6, proxy mobile Internet protocol vers1n 4 / vers1n 6) and other protocols to interact, to establish the first PDN connection; and then, again through dynamic host control protocol ( DHCP, DynamicHost Configurat1n protocol) negotiation and PMIPv4 / v6 protocol to establish the second, third, etc. TON multiple connections at the same time to achieve the purpose of visiting multiple TON.

[0010] 其中,在MS/ΑΤ与第二、第三等多个I3DN建立连接时,由于网络不需对MS/ΑΤ进行重新鉴权,PDSN无法根据MS/ΑΤ发出的PDN的网络当前要接入PDN的网络标识(NAI,NetworkAccess Identif ier)或接入点名(APN,AccessPoint Name,)获知所对应HA/LMA的标识如IP地址),这样,PDSN便不能够与对应的HA/LMA建立PMIP通道并为MS/ΑΤ分配IP地址,最终使得目前已公开的方案无法实现MS/ΑΤ的多TON连接。 Network PDN [0010] wherein, when the MS / ΑΤ establish a connection with a second, third, etc. plurality I3DN, since the network does not need to MS / ΑΤ for re-authentication, the PDSN can not be issued under MS / ΑΤ current to pick the PDN network identifier (NAI, NetworkAccess Identif ier) or an access point name (APN, AccessPoint Name,) known HA / LMA identifier such as an IP address) corresponding to such, the PDSN will not be established with a corresponding PMIP HA / LMA passage and MS / ΑΤ assign IP addresses, such that the final program is currently impossible disclosed MS / ΑΤ multi TON connection.

发明内容 SUMMARY

[0011]有鉴于此,本发明的主要目的在于提供了实现多分组数据网络连接的方法及接入网关、系统,以解决现有技术无法实现终端连接多个I3DN的技术问题。 [0011] In view of this, the main object of the present invention to provide a method for implementing an access gateway and a plurality of packet data network connection, the system, in order to solve the technical problems of the prior art can not realize a plurality of connection terminals of I3DN.

[0012]为达到上述目的,本发明的技术方案是这样实现的: [0012] To achieve the above object, the technical solution of the present invention is implemented as follows:

[0013]本发明提供了一种实现多分组数据网络TON连接的方法,所述方法包括:接入网关接收终端发送的当前要接入PDN的网络标识;根据所接收到的当前要接入PDN的网络标识,接入网关获取当前要接入TON的数据网关的标识;根据所获取的数据网关的标识,所述的接入网关从所述数据网关获取所述终端连接当前要接入TON的IP地址,并返回给所述终端,完成所述终端与当前要接入I3DN之间连接的建立过程。 [0013] The present invention provides a method for realizing multi-TON packet data network connection, the method comprising: for a current access network identifier of the access gateway PDN sent by a terminal; current according to the received access to PDN the network identification, access gateway to obtain the current access gateway identification data TON; according to the acquired identification data gateway, the access gateway acquires the data from the gateway to the access terminal currently connected to the TON IP address, and returns to the terminal, the terminal and complete the process of establishing a current connection between the access to the I3DN.

[0014]在上述方案中,所述获取当前要接入PDN的数据网关标识,包括:将所接收到的当前要接入TON的网络标识发送到鉴权中心或能够得到当前要接入PDN的数据网关标识的网元;接收所述鉴权中心或所述的网元根据所收到的当前要接入TON的网络标识返回的当前要接入TON的数据网关标识。 [0014] In the above embodiment, the obtaining current data gateway to access the PDN identifier, comprising: transmitting a current to the received network identification to access TON authentication center or current can be obtained to access the PDN data gateway NE identifier; receiving the authentication center or in the network element based on the received current to the current access gateway to access data identifying TON TON network identity returned.

[0015]在上述方案中,所述的从所述数据网关获取所述终端连接当前要接入PDN的IP地址,具体为:根据所收到的数据网关标识,接入网关与当前要接入TON的数据网关建立连接;所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关;接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址。 [0015] In the above embodiment, the data acquired from the current terminal is connected to the gateway IP address of the PDN access, specifically: According to the received identification data gateway, the access gateway and the access to the current TON gateway establishing a connection of data; said data gateway for connection to the terminal is assigned the current IP address to access the PDN, and returns to the access gateway allocated IP address; the access gateway by the data gateway to establish a connection, to receive the data returned by the gateway IP address.

[0016]本发明还提供了一种实现多分组数据网络连接的接入网关,所述接入网关包括:第一接收单元、第一获取单元、第二获取单元和第一发送单元,其中:第一接收单元,用于接收终端发送的当前要接入TON的网络标识;第一获取单元,用于根据所述第一接收单元收到的当前要接入TON的网络标识,获取当前要接入TON的数据网关的标识;第二获取单元,用于根据所述第一获取单元获取的数据网关的标识,从所述数据网关获取所述终端连接当前要接入PDN的IP地址;第一发送单元,用于将所述第二获取单元获取的IP地址返回给所述终端。 [0016] The present invention further provides an access gateway for implementing a multi-packet data network connection, the access gateway comprising: a first receiving unit, a first acquiring unit, a second acquiring unit and a first sending unit, wherein: a first receiving unit for receiving a current to the access terminal transmits a network identification TON; a first obtaining unit, according to the first receiving unit to receive a current access network identifier TON, to obtain the current contact TON of the identification data gateway; a second acquisition unit for acquiring first identification data gateway based on the acquiring unit, acquiring the access terminal is connected to the current IP address of the PDN gateway from said data; a first transmission means for converting the second acquisition unit acquires the IP address returned to the terminal.

[0017]在上述方案中,所述第一获取单元包括发送模块和第一接收模块,其中:发送模块,用于将所述第一接收单元所收到的当前要接入PDN的网络标识发送到鉴权中心或能够得到当前要接入TON的数据网关标识的网元;第一接收模块,用于接收所述鉴权中心或所述的网元根据所收到的当前要接入TON的网络标识返回的当前要接入TON的数据网关标识。 [0017] In the above embodiment, the first acquisition unit includes a first receiving module and a transmitting module, wherein: a sending module, configured to transmit the first network identifier received by the current receiving unit to access the PDN the authentication center or current can be obtained to access the gateway NE TON identification data; a first receiving module, configured to receive the authentication center of the network element or the current received to the access of TON returns the current network identification data to the access gateway identifier TON.

[0018]在上述方案中,所述第二获取单元包括连接和第二接收模块,其中:连接模块,用于根据所述第一获取单元获取的数据网关标识,与当前要接入TON的数据网关建立连接;第二接收模块,用于根据所述连接模块所建立的连接,接收所述数据网关返回的该数据网关为所述终端分配的用于连接当前要接入TON的IP地址。 [0018] In the above embodiment, the connector comprises a second obtaining unit and a second receiving module, wherein: the data connection module, for the first acquisition unit acquires data according to the identified gateway, and the access to the current of TON the gateway establishing a connection; a second receiving module, for connecting the connector according to the established module, the data returned by the gateway receiving the data gateway for the terminal to be allocated for a connection to the current access IP address of TON.

[0019]本发明还提供了一种实现多分组数据网络连接的系统,所述系统包括终端、鉴权中心、数据网关和用于实现多分组数据网络连接的接入网关;其中:终端,用于向所述接入网关发送当前要接入TON的网络标识,并接收所述接入网关返回的连接与当前要接入TON的IP地址,完成与当前要接入I3DN之间连接的建立过程;鉴权中心,用于得到当前要接入I3DN的数据网关的标识;;数据网关,用于为所述终端分配用于连接当前要接入TON的IP地址;接入网关,用于根据所述终端发送的当前要接入TON的网络标识,从所述鉴权中心获取当前要接入TON的所述数据网关的标识;根据所获取的所述数据网关的标识,从所述数据网关获取用于连接当前要接入I3DN的IP地址;并将获取的该IP地址返回给所述终端。 [0019] The present invention further provides a system for implementing a multi-packet data network connection, the system comprising a terminal, an authentication center, the data gateway and the access gateway for implementing a multi-packet data network connection; wherein: the terminal, with to send the current to the access network identity TON, and receives the returned access gateway connected to the current access IP address of TON, to complete the access procedure to establish a connection between the gateway and the current to be accessed I3DN ; authentication center, to be accessed for obtaining current data gateway ;; I3DN identification data gateway for the terminal is assigned to the current connection is used to access IP address of TON; access gateway, according to the said current transmitted to the access terminal TON network identification, acquiring a current gateway identifies the data to be accessed from the authentication center TON; the gateway identifies the data acquired, the acquired data from gateway for connection to the current access IP address of I3DN; and obtaining the IP address returned to the terminal.

[0020]本发明还提供了一种实现多分组数据网络连接的方法,所述方法包括:接收到终端发送的当前要接入PDN的网络标识;根据所收到的当前要接入PDN的网络标识,在已保存的各TON的包含有网络标识及数据网关标识的信息表中,查找当前要接入TON的数据网关IP标识;根据所找到的数据网关标识,从所述数据网关获取所述终端连接当前要接入TON的IP地址,并将该IP地址返回给所述终端,完成所述终端与当前要接入的TON之间连接的建立过程。 [0020] The present invention further provides a method for realizing multi-packet data network connection, the method comprising: receiving a current to be transmitted to the terminal access network PDN identifier; received according to the current access network PDN identification, the network information table includes identification data and each of the identified gateway TON saved, the current to be accessed to find the gateway IP identification data TON; gateway identifier according to the data found, the data acquired from the gateway a terminal connected to the current access IP address of TON, and returns the IP address to the terminal, the terminal and complete the process of establishing a current connection between the access to the TON.

[0021]在上述方案中,在接收到终端发送的当前要接入TON的网络标识之前,所述方法还包括:获取所述终端能够接入的各个PDN的网络标识和数据网关标识,并将所获取的各个I3DN的网络标识和数据网关标识对应保存在各I3DN的信息表中。 [0021] In the above embodiment, the receiving terminal prior to the transmission of the current access network identification TON, said method further comprising: obtaining each of the PDN terminal to access the network identifier and a data gateway identifier, and I3DN of each network identifier and the acquired data stored in the gateway corresponding to the identifier information table I3DN.

[0022]在上述方案中,所述的获取所述终端能够接入的各个PDN的网络标识和数据网关标识的过程,具体为:接收所述终端发送的任意一个能够接入的PDN的网络标识;将收到的所述网络标识发送到鉴权中心或能够得到各PDN的数据网关的标识的网元中;接收所述鉴权中心或所述的网元根据所述网络标识返回的所述终端能够接入的各个TON的数据网关标识和/或网络标识O [0022] In the above embodiment, the process of acquiring the network identification data and the identification of each of the PDN gateways to access terminals, and specifically is: the terminal receiving any transmission of a PDN is able to access a network identification ; the received identification to the network authentication center or the network identification data can be obtained for each PDN gateway element; said return according to the received network identifier or the authentication center of the network element data identifying each of TON gateway terminal to access and / or network identifier O

[0023]本发明还提供了一种实现多分组数据网络连接的接入网关,所述接入网关包括:存储单元、第二接收单元、查找单元、第三获取单元和第二发送单元,其中:存储单元,用于保存各个TON的包含PDN的网络标识和数据网关标识的信息表;第二接收单元,用于接收到终端发送的当前要接入TON的网络标识;查找单元,用于根据所述第二接收单元收到的当前要接入TON的网络标识,在所述存储单元保存的各信息表中,查找当前要接入TON的数据网关标识;第三获取单元,用于根据所述查找单元找到的数据网关标识,从所述数据网关获取所述终端连接当前要接入TON的IP地址;第二发送单元,用于将所述第三获取单元获取的所述终端连接当前要接入TON的IP地址返回给所述终端,完成所述终端与当前要接入的TON之间连接的建立过程。 [0023] The present invention further provides an access gateway for implementing a multi-packet data network connection, the access gateway comprising: a storage unit, a second receiving unit, a searching unit, the third acquisition unit, and a second sending unit, wherein : a storage unit for storing individual information table TON network identification data gateway and PDN identifier comprising; a second receiving unit for receiving a current to be transmitted to the terminal access network identifier of TON; search unit, according to the second receiving unit to receive a current access network identifier TON, each information table stored in the storage means, to find the current data access gateway identifier TON; third obtaining unit, according to the said look-up data found in the gateway identification unit acquiring the terminal is connected to the current access IP address from the data gateway TON; a second sending unit, for the third acquiring unit acquires the terminal connected to the current TON access returns the IP address to the terminal, the terminal and complete the process of establishing a current connection between the access to the TON.

[0024]在上述方案中,所述接入网关还包括第四获取单元,其中:第四获取单元,用于获取所述终端能够接入的各个TON的网络标识和数据网关标识,并保存至存储单元。 [0024] In the above embodiment, the access gateway further comprises a fourth acquiring unit, wherein: a fourth acquisition unit configured to acquire the terminal to access each of TON and network identification data gateway identifier, and saved to The storage unit.

[0025]本发明还提供了一种实现多分组数据网络连接的系统,所述系统包括:终端、接入网关和数据网关,其中:终端,用于向所述接入网关发送当前要接入TON的网络标识,并接收所述接入网关返回的所述终端连接当前I3DN的IP地址,完成与当前要接入I3DN之间连接的建立过程;接入网关,用于在接收到所述终端发送的当前要接入PDN的网络标识时,根据所收到的当前要接入PDN的网络标识,在自身已保存的各PDN的包含有PDN的网络标识和数据网关标识的信息表中,查找当前要接入PDN的数据网关标识;并根据所找到的数据网关标识,从数据网关获取用于连接当前要接入TON的IP地址,并将该IP地址返回给所述终端,所述终端根据该IP地址与当前要接入的PDN建立连接;数据网关,用于为所述终端分配用于连接当前要接入I3DN的IP地址。 [0025] The present invention further provides a system for implementing a multi-packet data network connection, the system comprising: a terminal, an access gateway and a PDN gateway, wherein: a terminal, configured to send to the access gateway to access the current TON network identity of the terminal, and receives the returned IP address of the access gateway connected to the current I3DN complete access to the current process of establishing a connection between the I3DN; access gateway for receiving the terminal to access the current network identifier sent by the PDN, according to the current received PDN access network identifier, the network identifier and the data information table identifying a PDN gateways PDN each saved itself comprises, find current data gateway to access the PDN identifier; and the gateway identifier according to the data found, the data acquired from the gateway for connection to the current access IP address of TON, and returns the IP address to the terminal, the terminal according to the IP address to be accessed currently established PDN connection; data gateway for the terminal is assigned to the current connection is used to access IP address of I3DN.

[0026]在上述方案中,所述接入网关还用于:获取所述终端能够接入的各个TON的网络标识和数据网关标识,并将所获取的各个TON的网络标识和数据网关标识对应保存在各TON的信息表中。 [0026] In the above embodiment, the access gateway is further configured to: obtain respective TON terminal to access the network identification data and the gateway identifier, and each of TON and the acquired network identification data to identify the corresponding gateway TON stored in the information table.

[0027]在上述方案中,所述终端还用于向所述接入网关发送网络标识。 [0027] In the above embodiment, the terminal further configured to send a network identifier to the access gateway.

[0028]在上述方案中,所述系统还包括鉴权中心,其中,鉴权中心,用于根据TON的网络标识,查找所述终端能够接入的一个或者多个TON的数据网关标识和/或网络标识,并返回给所述接入网关;所述接入网关,具体用于接收所述终端发送的能够接入的一个或多个TON网络标识并转发给所述鉴权中心;以及,接收所述鉴权中心所返回的所述终端能够接入的各个TON的数据网关标识和/或网络标识并保存在各TON的信息表中。 [0028] In the above embodiment, the system further comprising an authentication center, wherein the authentication center, according to the network identifier of TON, lookup data gateway identifier of the terminal to access one or more of TON and / or a network identification, and returns to the access gateway; the access gateway, or more specifically for a TON network identifier to access terminal receiving the transmitted and forwarded to the authentication center; and, the receiving terminal returns the authentication center is able to access the respective data TON gateway identifier and / or a network identification of TON and stored in the information table.

[0029 ]通过本发明的实现多PDN连接的方法及接入网关、系统,终端在与第二、第三等多个PDN建立连接时,能够根据当前要接入PDN的网络标识来从鉴权中心获取或找到要接入TON的数据网关标识,并通过与要接入TON的数据网关建立连接来最终获得所述终端连接要接入I3DN的IP地址,从而在实际应用中实现终端与多个I3DN同时建立连接。 [0029] The present invention is achieved by a method and a multi-access gateway PDN connection, the system, when the terminal establishes a connection with a second, third, etc., a plurality of PDN, the authentication can be based on the current network identifier to access the PDN to find the center for access or data gateway identifier TON, and ultimately the terminal is connected to the access IP address I3DN to achieve in practical applications by establishing a plurality of terminals to be connected to the data gateway access TON I3DN while establishing the connection.

附图说明 BRIEF DESCRIPTION

[0030]图1为现有技术中CDMA2000系统的部分网络结构示意图; [0030] FIG. 1 is a schematic diagram of the network architecture of the prior art CDMA2000 system;

[0031]图2为本发明的一种实现多TON连接方法的实现流程示意图; [0031] FIG. 2 of the present invention provide a multi-connection method TON achieve a schematic flow;

[0032]图3为图2中获取当前要接入TON的数据网关IP地址的实现流程示意图; [0032] in FIG. 2 FIG. 3 is a schematic view to obtain the current implementation process TON access gateway's IP address data;

[0033]图4为图2中获取用于连接当前要接入TON的IP地址过程的实现流程示意图; [0033] FIG 4 is acquired in FIG. 2 for connecting a current flow to achieve a schematic view of an access IP address of TON process;

[0034]图5为图1所示方法在实际应用中的一种具体实施例的实现流程示意图; [0034] The method shown in FIG. 5 is a view of an implementation in practical applications flow diagram showing a specific example of embodiment;

[0035]图6为图1所示方法在实际应用中的另一种具体实施例的实现流程示意图 [0035] FIG. 6 is a method shown in FIG. 1 in the practical application of another specific embodiment of the implementation flow schematic embodiment

[0036]图7为本发明的一种实现多TON连接的接入网关的组成结构示意图; [0036] FIG. 7 of the present invention is a structure diagram of a multiple access gateways connected TON implemented;

[0037]图8为本发明的一种实现多TON连接的系统组成结构示意图; [0037] FIG. 8 of the present invention provide a system to achieve multiple connections TON schematic structures;

[0038]图9为本发明的另一种实现多TON连接方法的实现流程示意图; Another [0038] FIG. 9 of the present invention is implemented to achieve multiple flow schematic TON connection method;

[0039]图10为图9中获取所述终端能够接入的各个PDN的网络标识和数据网关标识的一种实现流程示意图; [0039] FIG. 10 is an implementation of FIG. 9 acquires respective terminal to access the PDN network identification data and the identified gateway schematic flow diagram;

[0040]图11为获取所述终端能够接入的各个TON的网络标识和数据网关标识的另一种实现流程示意图; [0040] FIG. 11 is a terminal capable of acquiring the access network identification TON respective data gateway and another schematic flow chart of one implementation identifier;

[0041]图12为图9所示方法在实际应用中的一种具体实施例的实现流程示意图; [0041] FIG. 12 is a method shown in FIG. 9 A practical application example of a specific implementation process schematic embodiment;

[0042]图13为本发明的另一种实现多TON连接的接入网关的组成结构示意图; [0042] FIG. 13 of the present invention is a structure diagram of another multiple access gateways connected TON implemented;

[0043]图14为本发明的另一种实现多TON连接的系统组成结构示意图。 [0043] FIG. 14 of the present invention, another system connected to multiple TON structure diagram realized composition.

具体实施方式 detailed description

[0044]本发明的一种实现多分组数据网络连接的方法,参照图2所示,主要包括以下步骤: [0044] Multi a packet data network connection is implemented according to the present invention, with reference to FIG. 2, includes the following steps:

[0045]步骤201:接入网关接收终端发送的当前要接入TON的网络标识; [0045] Step 201: The access gateway receives the access terminal to be transmitted in the current network identification TON;

[0046]步骤202:根据所接收到的当前要接入PDN的网络标识,接入网关获取当前要接入PDN的数据网关的标识; [0046] Step 202: according to the received current to the PDN access network identifier, obtain the current access gateway to access the PDN identifier data gateway;

[0047]步骤203:根据所获取的数据网关的标识,接入网关从所述数据网关获取所述终端连接当前要接入PDN的IP地址,并返回给所述终端,完成所述终端与当前要接入TON之间连接的建立过程。 [0047] Step 203: according to the identifier acquired data gateway, the access gateway acquires the data from the gateway terminal is connected to the current IP address of the PDN access and returns to the terminal, the terminal and complete the current to access the process of establishing a connection between TON.

[0048] 这里,接入网关可以是roSN,终端可以是MS/ΑΤ。 [0048] Here, the access gateway may be roSN, the terminal may be a MS / ΑΤ.

[0049] 具体地,PDN的网络标识可以为NAI或者APN。 [0049] Specifically, PDN identifier may be a network or NAI APN.

[0050]这里,数据网关的标识可以为该数据网关的IP地址,也可以是数据网关本身的身份标识,或者其他能够标识数据网关的信息。 [0050] Here, the identification data gateway can for the data gateway IP address, can also be a data gateway itself, identity, or other information that can identify data gateway.

[0051]其中,步骤202中接入网关获取当前要接入PDN的数据网关标识,参照图3所示,具体可以包括: [0051] wherein, in step 202 the access gateway acquires the current data to be accessed PDN gateway identifier, with reference to FIG. 3, specifically comprises:

[0052]步骤301:接入网关将所接收到的当前要接入TON的网络标识发送到鉴权中心或能够得到当前要接入TON的数据网关标识的网元; [0052] Step 301: The access gateway to be currently received TON access network identification to the authentication center can be obtained or the current data to be accessed TON identified gateway network element;

[0053] 步骤302:所述鉴权中心或网元根据所收到的当前要接入PDN的网络标识,得到当前要接入TON的数据网关标识,并将得到的数据网关标识返回给所述接入网关; [0053] Step 302: the authentication center or network element according to the received current access network identifier of the PDN, to obtain current data access gateway identifier TON, and the resulting data is returned to the gateway identifier an access gateway;

[0054] 具体地,所述鉴权中心或网元可以配置保存有各TON网络标识及各TON的数据网关的标识,鉴权中心或网元根据所收到的当前要接入PDN的网络标识通过查找或解析并查询的方式来得到当前要接入I3DN的数据网关的标识; [0054] Specifically, the authentication center or the network element may be configured to identify individual stored TON TON network identification data and each gateway network element or the authentication center according to the received current access network identifier the PDN to get access I3DN to identify the current data gateway or by finding ways to resolve and query;

[0055]或者,所述的鉴权中心或网元根据所收到的当前要接入TON的网络标识,从保存有各TON网络标识及各TON的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 [0055] Alternatively, the authentication center or network element according to the received current access network identifier TON from another device identifier stored in each network identifier and each TON TON data gateway to get the current TON data access gateway identifier.

[0056] 这里,所述鉴权中心具体可以为AAA/Radius,所述的网元可以是DNS服务器。 [0056] Here, the authentication center can be specifically AAA / Radius, the network element may be a DNS server.

[0057]步骤303:所述接入网关接收所述鉴权中心或所述的网元返回的数据网关标识,结束当前获取数据网关标识的流程。 [0057] Step 303: The access gateway receives the identification data gateway authentication center of the network element or return, ending the current process of acquiring data gateway identifier.

[0058]这里,如果所述当前要接入PDN不是首个要接入的PDN,则将所接收到的当前要接入PDN的网络标识发送到鉴权中心或所述的网元,通过鉴权中心或所述的网元来获取当前要接入TON的数据网关的标识。 [0058] Here, if the current PDN access to PDN is not the first to be accessed, then the received current to the PDN access network identification to the authentication center of the network element or by Kam right center or the network element to get access to identify the current data gateway TON.

[0059] 具体地,如果当前要接入的PDN为首个要接入的TON,则实现步骤301、302的具体流程可以为: [0059] Specifically, if the current to be accessed to access a PDN led TON, specific process steps 301 and 302 may be implemented is:

[0060]接入网关向所述鉴权中心或所述的网元发送包含标识所述终端身份的国际移动用户识别码(IMSI,Internat1nal Mobile Subscriber Identity)的接入请求(AccessRequest),并同时携带当前要接入F1DN的网络标识; International mobile subscriber identity (IMSI, Internat1nal Mobile Subscriber Identity) an access request [0060] The access gateway sends an identifier of the terminal identity to the authentication center or the network element (AccessRequest), and at the same time carrying to access the current network identification F1DN;

[0061 ] 所述鉴权中心或所述的网元根据Access Request,完成对所述终端的鉴权,并根据其中的网络标识找到当前要接入TON的数据网关的标识;在鉴权成功后,向所述接入网关返回携带有数据网关标识的接入接受(Access Accept)应答; [0061] The authentication center or network element according to the Access Request, complete the authentication of the terminal, and to find the identity of the current data access gateway according TON wherein the network identification; after authentication succeeds return data carrying identification of the access gateway to the access gateway accepts (access Accept) response;

[0062]接入网关接收所述的Access Accept,结束当前获取数据网关标识的流程。 [0062] The access gateway receives the Access Accept, ending the current process of acquiring data gateway identifier.

[0063] 如果当前要接入的TON不是首个要接入的TON,实现步骤301、302的具体流程为: [0063] If the current to be accessed TON is not the first to be accessed TON, to achieve specific process steps 301 and 302 is:

[0064]接入网关根据所接收到的当前要接入PDN的网络标识,接入网关向所述鉴权中心或所述的网元发送只包含当前要接入F1DN的网络标识的AccessRequest; [0064] The access gateway according to the received network identifier of the current access to the PDN, the access gateway sends the authentication center of the network element or contains only the access to the current network identifier F1DN of AccessRequest;

[0065] 所述鉴权中心或所述的网元根据Access Request,找到当前要接入PDN的数据网关标识,并将只包含数据网关标识的Access Accept返回给所述接入网关; [0065] The authentication center or network element according to the Access Request, to find the current data access PDN gateway identifier, and contains only data identified gateway Access Accept is returned to the access gateway;

[0066]接入网关接收Access Accept,结束当前获取数据网关标识的流程。 [0066] The access gateway receives the Access Accept, ending the current process of acquiring data gateway identifier.

[0067]其中,步骤203中从所述数据网关获取所述终端连接当前要接入PDN的IP地址的过程,具体为: [0067] wherein, in step 203 the data acquired from the gateway terminal is connected to the current process of access to the IP address of the PDN, specifically:

[0068]根据所收到的数据网关标识,接入网关与当前要接入TON的数据网关建立连接; [0068] According to the received identification data gateway, the access gateway to establish a connection with the current data access gateway TON;

[0069]所述的数据网关为所述终端分配用于连接当前要接入TON的IP地址,并将所分配的IP地址返回给所述的接入网关; Data gateway [0069] The terminal is assigned to the current connection is used to access IP address of TON, and returns to the access gateway allocated IP address;

[0070]接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址。 [0070] The access gateway via the established connection with the data gateway, the gateway receives an IP address of the data returned.

[0071]具体地,在所述的数据网关标识为数据网关的IP地址时,接入网关可以根据该标识,直接通过绑定和/或注册的方式与所述的数据网关建立连接;否则,接入网关需要首先根据数据网关的标识,得到该数据网关的IP地址,根据该IP地址来与所述的数据网关建立连接。 When [0071] Specifically, according to data in the gateway IP address identification data gateway, the access gateway according to the identification, to establish a connection directly through the binding and / or data being registered in the gateway; otherwise, the first access gateway requires the identification data gateway to obtain the IP address of the data gateway, establishing a connection with the data gateway based on the IP address.

[0072]实际应用中,在接入网关得到所述的数据网关的IP地址后,实现上述的从数据网关获取所述终端连接当前要接入TON的IP地址的过程,参照图4所示,具体可以包括以下流程: After [0072] In practice, to obtain the IP address data a gateway in an access gateway, to achieve the above-described process of obtaining a current terminal is connected to the access IP address of TON from the data gateway, referring to FIG. 4, specific procedures may include the following:

[0073]步骤401:接入网关根据所获取的数据网关IP地址,向所述数据网关发送包含所述数据网关IP地址的代理绑定请求(PBU,Proxy Binding Update); [0073] Step 401: The access gateway proxy data acquired by the IP address of the gateway, the gateway transmits the data including the IP address of the gateway to the data binding request (PBU, Proxy Binding Update);

[0074]步骤402:数据网关接收到PBU后,为所述终端分配用于连接当前要接入TON的IP地址,并将包含该IP地址的代理绑定应答(PBA,Proxy BindingAck)返回给所述接入网关; [0074] Step 402: After receiving the PBU data gateway, the terminal is assigned to the current connection is used to access IP address of TON, and contains a proxy binding acknowledgment of the IP address (PBA, Proxy BindingAck) is returned to the said access gateway;

[0075]步骤403:接入网关接收所述数据网关返回的PBA,完成用于连接当前要接入TON的IP地址的获取过程。 [0075] Step 403: The access gateway receives the PBA data returned by the gateway for connecting the current to complete the access IP address of TON acquisition process.

[0076] 这里,数据网关具体可以为HA或LMA。 [0076] Here, the data may be a particular gateway or HA LMA.

[0077]下面将对本发明图2所示的实现多TON连接方法的两种具体实现方式做详细说明。 [0077] FIG description will implement the present invention is shown in more than two connection TON two specific implementations of the method described in detail.

[0078] 具体实施例一 [0078] Specific embodiments of a

[0079] 参照图5所示,实际应用中,在包含MS/AT、RAN、PDSN、多个要接入I3DN所对应的多个HA/LMA、以及Radius/AAA的CDMA网络系统中,MS/ΑΤ连接首个要接入PDN时采用IP控制协议(IPCPJP Control Protocol),而连接第N个(N不小于2)要接入I3DN时采用DHCP,则实现多TON连接的具体流程如下: [0079] Referring to FIG. 5, a practical application, the MS / AT, a plurality of HA RAN, PDSN, to a plurality of corresponding access I3DN / LMA, and Radius / AAA system comprises the CDMA network, MS / ΑΤ connection using the first IP control protocol (IPCPJP control protocol) to access PDN, is connected to the N-th (N is not less than 2) using DHCP to access I3DN, the specific process to achieve multiple connections TON follows:

[0080] 步骤5 O 1: MS / AT与PDSN进行PPP会话的链路控制协议(LCP,L in kControlProtocol)协商。 [0080] Step 5 O 1: MS / AT and PDSN performing link control protocol PPP session (LCP, L in kControlProtocol) negotiation.

[0081 ]步骤502:MS/AT与I3DSN进行PPP会话协商并进行接入鉴权,其中的鉴权信令携带了MS/ΑΤ的IMS1、以及第一个要接入PDN的网络标识NAI/APN等。 [0081] Step 502: MS / AT and I3DSN perform PPP session negotiation and access authentication, wherein the authentication signaling carrying IMS1 MS / ΑΤ, and to a first PDN access network identifier NAI / APN Wait.

[0082]步骤503 = F1DSN发送接入请求(Access Request)给Radius/AAA,请求鉴权; [0082] Step 503 = F1DSN sending an access request (Access Request) to the Radius / AAA, the authentication request;

[0083] 这里,Access Request中可以携带MS/AT的标识IMS1、以及ΝΑΙ/ΑΡΝ等。 [0083] Here, Access Request may carry the MS / AT identifier IMS1, and ΝΑΙ / ΑΡΝ like.

[0084]步骤504:Radius/AAA在接收到接入请求(Access Request)后,根据IMSI和NAI/APN等信息,通过查询找到首个要接入PDN的HA/LMA-1的IP地址,并通过向I3DSN回复接入接受(Access Acc印t)应答将其发送给接入网关H)SN; [0084] Step 504: Radius / AAA after receiving the access request (Access Request), according to the IMSI and NAI / APN information, the first to be found by querying the access PDN HA / LMA-1 IP address, and by receiving the access reply (access Acc printed t) sends a response to the access gateway H) SN to I3DSN;

[0085] 这里,步骤502-504为Radius/AAA对MS/AT进行鉴权的过程,本发明中在实现终端与首个要接入I3DN的连接时,通过该鉴权交互的过程,Radius/AAA将HA/LMA-1的IP地址携带于鉴权信令Access Accept中发送给FOSN。 [0085] Here, the process steps 502-504 of Radius / AAA for the MS / AT for authentication, the present invention is implemented in a terminal with access to I3DN the first connection, via the authentication interaction process, Radius / the AAA HA / LMA-1 IP address carried in the authentication signaling sent to FOSN the Access Accept.

[0086] 这里,roSN还可以根据首个要接入PDN的NAI/APN,找到HA/LMA-1的其他标识如身份标识,再由该找到的标识,得到HA/LMA-1的IP地址,以便于I3DSN能够根据HA/LMA-1的IP地址向HA/LMA-1发送PBU。 [0086] Here, roSN can also access the first PDN to the NAI / APN, find HA / LMA-1 other identification, such as identity, and then by identifying the found obtain HA / LMA-1 IP address, I3DSN so as to be able to send PBU to HA / LMA-1 based on the IP address of the HA / LMA-1's.

[0087] 步骤505:MS/AT向PDSN发送IPCP配置请求,请求完成IPCP协商; [0087] Step 505: MS / AT transmits an IPCP configuration request to the PDSN, IPCP negotiation request is completed;

[0088] 其中,基于IPCP的IPCP协商只能够支持MS/ΑΤ与一个TON的连接。 [0088] wherein, based IPCP negotiation and IPCP connection can only support MS ΑΤ / TON of one.

[0089] 这里,IPCP配置请求中可以携带用于接入第一个要接入PDN的NAI/APN、HA/LMA-1的IP地址或其他标识。 [0089] Here, IPCP configuration request may carry the access to be used to access the first PDN of NAI / APN, HA / LMA-1 IP address or other identification.

[0090] 步骤506: PDSN在接收IPCP配置请求后,根据所获取的HA/LMA-1的IP地址,向HA/LMA-1发送PBU,请求绑定; [0090] Step 506: PDSN after receiving an IPCP configure request, in accordance with the acquired IP address HA / LMA-1, and to the HA / LMA-1 transmits the PBU, bind request;

[0091] 其中,该PBU中可以包含Radius/AAA所返回的HA/LMA-1的IP地址。 [0091] wherein, the PBU may include the IP address Radius / AAA returned HA / LMA-1's.

[0092] 步骤507:HA/LMA-1接收至IjPDSN所发送的PBU后,为MS/ΑΤ分配用于连接第一个要接入PDN的IP地址,向PDSN回应PBA ; [0092] Step 507: HA / LMA-1 to the received PBU IjPDSN transmitted, MS / ΑΤ allocated for a connection to the first IP address of the PDN access, the PBA response to the PDSN;

[0093 ] 这里,PM中携带了HA/LMA-1为MS/ΑΤ分配的用于连接首个要接入PDN的IP地址。 [0093] Here, PM carries the HA / LMA-1 to MS / ΑΤ allocated for connection to the first access IP address of the PDN.

[0094] 步骤508: PDSN在接收到PBA后,向MS/ΑΤ发送IPCP配置应答信令; [0094] Step 508: PDSN after receiving a PBA, transmits an IPCP configure response signaling to MS / ΑΤ;

[0095]这里,IPCP配置应答信令中携带有PDSN所得到的用于连接第一个要接入PDN的IP地址,MS/ΑΤ在接收到该IPCP配置应答信令后,完成与第一个要接入TON之间连接的建立过程。 [0095] Here, an IPCP configure PDSN carries signaling response obtained for connecting a first IP address to access the PDN, MS / ΑΤ After receiving the reply signaling IPCP configuration, complete with a first to access the process of establishing a connection between TON.

[0096] 步骤509:MS/AT发送DHCP请求给H)SN,请求与第二个要接入TON建立连接; [0096] Step 509: MS / AT sends a DHCP request to H) SN, a second request to establish a connection with access to the TON;

[0097] 其中,DHCP可以支持MS/AT与多个PDN的连接,主要包括DHCPDISCOVER with RapidComm it 等DHCP 信令。 [0097] wherein, DHCP can support MS / AT and multiple PDN connections, including DHCPDISCOVER with RapidComm it like DHCP signaling.

[0098] 这里,DHCP信令中携带有第二个要接入I3DN的NAI/APN等。 [0098] Here, DHCP signaling carries a second access to the I3DN NAI / APN like.

[0099] 步骤510: PDSN接收到所述DHCP请求,判定MS/ΑΤ要与第二个要接入TON建立连接,则F1DSN发送接入请求(Access Request)给Radius/AAA,请求获取第二个要接入F1DN的数据网关HA/LMA-2的IP地址; [0099] Step 510: PDSN receiving the DHCP request, determines that MS / ΑΤ to establish a connection with a second access to TON, the F1DSN sending an access request (Access Request) to the Radius / AAA, the second request acquisition to access data F1DN gateway IP address HA / LMA-2; and

[0100]或者,roSN还可以在接收到DHCP请求后,根据其中携带的NAI/APN,在已获取的各HA/LMA的IP地址中,查找是否有第二个要接入I3DN的HA/LMA-2的IP地址; [0100] Alternatively, roSN also after receiving the DHCP request, in accordance with the carried NAI / APN, in the HA / IP address of the LMA has been acquired, to find whether there is a second access I3DN the HA / LMA -2 IP address;

[0101] 这里,由于当前PDSN只获取了HA/LMA-1的IP地址,而HA/LMA-1不能用于接入第二个要接入的I3DN,因此未找到第二个要接入PDN的HA/LMA-2的IP地址,则PDSN发送接入请求(Access Request)给Radius/AAA; [0101] Here, since the current PDSN gained only HA / LMA-1 IP address, the HA / LMA-1 can not be used to access the second access I3DN therefore not to access the second PDN Found the IP address of the HA / LMA-2, the PDSN sends an access request (access request) to the Radius / AAA;

[0102] 这里,Access Request中可以只包含DHCP请求中所携带的第二个要接入PDN的网络标识NAI/APN。 [0102] Here, Access Request may include only carried in the DHCP request to the second access network PDN identifier NAI / APN.

[0103] 这里,PDSN发送接入请求(Access Request)给Radius/AAA,还可以请求获取第二个要接入I3DN的HA/LMA-2的其他标识如身份标识等,从而可以在获取所请求的标识之后,由该标识得到HA/LMA-2的IP地址。 [0103] Here, the PDSN sends an access request (Access Request) to the Radius / AAA, you may also obtain a second request to access the other identification I3DN HA / LMA-2 and the like, such as identity, can be acquired in the requested after identification, resulting HA / LMA-2 IP address of the identification.

[0104] 步骤511:Radius/AAA在接收到接入请求(Access Request)后,根据其中的NAI/APN,找到HA/LMA-2的IP地址,并向I3DSN回复接入接受(AccessAccept)应答,告知I3DSN第二个要接入PDN的HA/LMA-2的IP地址; [0104] Step 511: Radius / AAA after receiving the access request (Access Request), according to which the NAI / APN, to find the IP address HA / LMA-2, and to accept the reply I3DSN access (AccessAccept) response, the second access I3DSN to inform the HA IP address of the PDN / LMA-2; and

[0105] 这里,Access Accept可以只包含HA/LMA-2的IP地址。 [0105] Here, Access Accept may comprise only the IP address of the HA / LMA-2's.

[0106] 这里,如果PDSN请求的是HA/LMA-2的其他标识如身份标识,贝IjAccessAccept只包含HA/LMA-2的其他标识如身份标识。 [0106] Here, if the PDSN requests the other identifier HA / LMA-2, such as identity, identification of other shellfish IjAccessAccept contains only HA / LMA-2 as identity.

[0107] 步骤512: PDSN向HA/LMA-2发送PBU,请求绑定; [0107] Step 512: PDSN sends a PBU to the HA / LMA-2, bind request;

[0108] 这里,PBU中包含了所获取的HA/LMA-2的IP地址。 [0108] Here, PBU contains the IP address acquired HA / LMA-2's.

[0109] 或者,如果PDSN从Radius/AAA获取的是HA/LMA-2的其他标识如身份标识,则需要首先根据该获取的标识,找到HA/LMA-2的IP地址,再向HA/LMA-2发送包含HA/LMA-2的IP地址的PBU。 [0109] Alternatively, if the PDSN acquired from Radius / AAA other identification HA / LMA-2, such as identity, according to the need to identify the acquired IP address to find the HA / LMA-2, and again HA / LMA -2 transmits a PBU IP address of the HA / LMA-2's.

[0110] 步骤513:HA/LMA-2向PDSN回应包含MS/ΑΤ连接第二个要接入PDN的IP地址的PBA。 [0110] Step 513: HA / LMA-2 response contains the MS to the PDSN / ΑΤ connection to the second IP address of the PDN access of the PBA.

[0111]步骤 514-515: I3DSN 再发送DHCP 信令给HA/LMA-2,HA/LMA-2 向I3DSN 回复DHCP 应答,以支持DHCP的交互; [0111] Step 514-515: I3DSN DHCP signaling and then sent to the HA / LMA-2, HA / LMA-2 I3DSN reply to DHCP reply, the DHCP to support interactive;

[0112]这里,DHCP信令可以是DHCP快速提交发现(DHCP DISCOVER withRapid Commit)信令;DHCP应答可以是DHCP快速提交发现应答(DHCP ACKwith Rapid Commit)信令,DHCP应答携带了MS/ΑΤ连接第二个要接入TON的IP地址。 [0112] Here, DHCP signaling may be submitted to quickly discover DHCP (DHCP DISCOVER withRapid Commit) signaling; DHCP response can be filed quickly DHCP discovery response (DHCP ACKwith Rapid Commit) signaling, the response carries DHCP MS / ΑΤ connecting the first to access the IP address of two of TON.

[0113] 步骤516:PDSN在接收到HA/LMA-2回复的DHCP应答后,向MS/ΑΤ回复DHCP应答; [0113] Step 516: PDSN after receiving the HA / LMA-2 reply DHCP reply to the MS / ΑΤ returns a DHCP response;

[0114] 这里,DHCP应答也可以是DHCPACK with Rapid Commit信令,其中携带了MS/AT连接第二个要接入I3DN的IP地址。 [0114] Here, the DHCP response may be a DHCPACK with Rapid Commit signaling, which carries the MS / AT is connected to the second access IP address of I3DN.

[0115]步骤517:MS/AT、RAN、PDSN之间交互,完成服务质量(QoS,Qualityof Service)协商、AlO建立和业务流模板(TFT,Traffic Flow Template)安装等流程,MS/AT与第二个要接入的I3DN之间连接的建立过程结束。 [0115] Step 517: the interaction between the MS / AT, RAN, PDSN, complete quality of service (QoS, Qualityof Service) negotiation, AlO establish and traffic flow template (TFT, Traffic Flow Template) installation process, MS / AT first the process of establishing a connection between two I3DN access to the end.

[0116]其中,重复步骤509-517,即可实现MS/ΑΤ与后续的多个要接入TON之间的连接。 [0116] wherein steps 509-517, can be realized MS / ΑΤ subsequent access to a plurality of connections between TON.

[0117] 在上述流程中,MS/ΑΤ还可以通过IPv6CP来实现与第一个要接入PDN的连接,实现流程与上述IPCP的相关流程相同,所不同的是实际交互的信令如IPCP请求等替换为IPv6CP的相关信令,最后得到MS/ΑΤ连接第一个要接入TON的IP地址具体为IPv6地址。 [0117] In the above flow, MS / ΑΤ IPv6CP also can be achieved by a first connection to access the PDN, to achieve the above-described process and related processes IPCP same, except that the signaling interaction, such as practical IPCP request replace the IPv6CP and other related signaling, finally resulting MS / ΑΤ connected to a first access to a specific IP address is an IPv6 address TON.

[0118] MS/ΑΤ还可以通过DHCPv6协议来实现与第二个要接入TON的连接,实现流程与上述流程相同,所不同的是将其中的DHCP请求及DHCP应答等DHCP信令替换为相应的DHCPv6信令,最后得到MS/ΑΤ连接第二个要接入TON的IP地址具体为IPv6地址。 [0118] MS / ΑΤ may also be achieved by the DHCPv6 protocol to the second access connection TON achieve the above-described process flow is the same, except that one of the DHCP request and the response of the DHCP DHCP signaling replaced with the corresponding the DHCPv6 signaling finally obtain MS / ΑΤ TON access connection to the second IP address is an IPv6 address specifically.

[0119] 例如,采用IPv6CP和/或DHCPv6协议时,PDSN与HA/LMA-1、HA/LMA-2之间建立注册关系来实现连接,而采用IPCP和/或DHCP协议时,PDSN与HA/LMA-l、HA/LMA-2之间建立绑定关系来实现连接。 When [0119] For example, using IPv6CP and / or the DHCPv6 protocol, the PDSN and HA / LMA-1, to establish the relationship between the registered HA / LMA-2 connection is realized, while the use of IPCP and / or DHCP protocol, the PDSN and HA / LMA-l, HA / LMA-2 binding relationship is established between the connection is realized.

[0120]具体实施例二 [0120] DETAILED second embodiment

[0121]参照图6所示,实际应用中,终端连接第一个要接入TON及后续的多个要接入TON时均可采用DHCP,则实现多I3DN连接的具体流程如下: [0121] Referring to FIG. 6, the practical application, the first terminal is connected to a plurality of access TON and subsequent to the access TON can use DHCP, the specific process to achieve multiple connections I3DN follows:

[0122] 步骤601-步骤604:与步骤501-504完全相同; [0122] Step 601 Step 604: the same as steps 501-504;

[0123]步骤605:MS/AT 与PDSN 进行IPCP 协商。 [0123] Step 605: MS / AT and PDSN IPCP negotiation performed.

[0124] 步骤606:MS/AT发送DHCP请求给H)SN,请求与第一个要接入I3DN建立连接; [0124] Step 606: MS / AT sends a DHCP request to H) SN, a request to establish a connection with a first access I3DN;

[0125] 步骤607-608:与步骤506-507完全相同; [0125] Step 607-608: the same as steps 506-507;

[0126]步骤609-610:roSN 发送DHCP 请求给HA/LMA-1,HA/LMA-1 向I3DSN 回复携带有MS/AT连接第一个要接入I3DN的IP地址的DHCP应答; [0126] Step 609-610: roSN sends a DHCP request to the HA / LMA-1, HA / LMA-1 to the reply carries I3DSN MS / AT is connected to the first access to a DHCP IP address I3DN response;

[0127] 步骤611:H)SN向MS/ΑΤ回复DHCP应答,DHCP应答中携带了MS/ΑΤ连接第一个要接入PDN的IP地址; [0127] Step 611: H) SN returns a DHCP response to the MS / ΑΤ, DHCP response carries the MS / ΑΤ connected to a first access IP address of the PDN;

[0128] 步骤612:]\^/^1'、1^1^)3~完成003协商^10建立和了?1'安装等流程,]\^/^1'到第一个要接入I3DN的连接建立完成。 [0128] Step 612:] \ ^ / ^ 1 '?, 1 ^ 1 ^) ^ 3 ~ 10 complete the establishment and negotiation 003 1' installation process,] \ ^ / ^ 1 'to the first access to a I3DN connection setup is completed.

[0129] 步骤613-621:与步骤509-517完全相同。 [0129] Step 613-621: the same as steps 509-517.

[0130]本实施例中,在MS/ΑΤ需要连接第三个要接入TON、第四个要接入TON等后续的多个要接入I3DN时,重复步骤613-621的流程即可实现。 [0130] In this embodiment, the MS / ΑΤ need to be connected to a third TON access, a subsequent access to the fourth plurality of TON isochronous access to I3DN, the process repeats steps 613-621 can be realized .

[0131] 本实施例也可以通过DHCPv6协议来实现,过程与具体实施例一中相同。 [0131] This embodiment can also be achieved by DHCPv6 protocol, a specific embodiment of the process of the same embodiment.

[0132]为实现图2所示的多PDN连接的方法,本发明还提供了一种实现多PDN连接的接入网关,参照图7所示,主要包括:第一接收单元71、第一获取单元72、第二获取单元73和第一发送单元74,其中: [0132] In order to achieve multiple PDN connection method shown in FIG. 2, the present invention further provides an access gateway for implementing multiple PDN connections, with reference to FIG. 7, including: a first receiving unit 71, first acquires unit 72, a second obtaining unit 73 and a first sending unit 74, wherein:

[0133]第一接收单元71,用于接收终端发送的当前要接入TON的网络标识; [0133] The first receiving unit 71, a terminal for receiving a current to be transmitted TON access network identification;

[0134]第一获取单元72,用于根据所述第一接收单元71收到的当前要接入TON的网络标识,获取当前要接入TON的数据网关的标识; [0134] a first obtaining unit 72, according to the first receiving unit 71 to receive a current access network identifier TON, TON access identifier to obtain the current data gateway;

[0135]第二获取单元73,用于根据所述第一获取单元72获取的数据网关的标识,从所述数据网关获取所述终端连接当前要接入I3DN的IP地址; [0135] The second obtaining unit 73 configured to obtain an identifier of a first gateway unit 72 acquires data based on the acquiring the access terminal is connected to the current IP address from the data gateway I3DN;

[0136]第一发送单元74,用于将所述第二获取单元73获取的IP地址返回给所述终端,完成所述终端与当前要接入I3DN之间连接的建立过程。 [0136] The first sending unit 74, configured to obtain the second acquiring unit 73 returns the IP address to the terminal, and completing the current terminal to the access procedure to establish a connection between the I3DN.

[0137]其中,所述第一获取单元72主要包括:发送模块721和第一接收模块722,其中: [0137] wherein, the first acquisition unit 72 mainly includes: a first sending module 721 and receiving module 722, wherein:

[0138]发送模块721,用于将所述第一接收单元所收到的当前要接入PDN的网络标识发送到鉴权中心或能够得到当前要接入TON的数据网关标识的网元; [0138] The sending module 721, configured to send the first receiving unit to receive a current access network identifier to the PDN or the authentication center to be able to get access to the NE identifier of the data gateway of TON;

[0139]第一接收模块722,用于接收所述鉴权中心或所述的网元根据所收到的当前要接入TON的网络标识返回的当前要接入TON的数据网关标识。 [0139] a first receiving module 722, configured to receive the network authentication center or the element according to the current received to access the current data to be accessed TON TON gateway identifier returned by network identification.

[0140]其中,第二获取单元73主要包括:连接模块731和第二接收模块732,其中: [0140] wherein the second obtaining unit 73 includes: a second connection module 731 and receiving module 732, wherein:

[0141]连接模块731,用于根据所述第一获取单元72获取的数据网关标识,与当前要接入I3DN的数据网关建立连接; [0141] connection module 731, a first acquisition unit 72 acquires data according to the identified gateway, establishing a connection with the current data to be accessed I3DN gateway;

[0142]第二接收模块732,用于根据所述连接模块731所建立的连接,接收所述数据网关返回的该数据网关为所述终端分配的用于连接当前要接入TON的IP地址。 [0142] The second receiving module 732, according to the connection establishing module 731, the data gateway receiving the data returned by the gateway allocated to the terminal for connection to a current access IP address of TON.

[0143]另外,为实现图2所示的多PDN连接方法,本发明的一种实现多分组数据网络连接的系统,参照图8所示,主要包括:终端81、鉴权中心82、数据网关83和上述的实现多分组数据网络连接的接入网关84;其中: [0143] In order to achieve multiple PDN connections shown in FIG. 2. A system for implementing the present invention is a multi-packet data network connection, with reference to FIG. 8, including: a terminal 81, the authentication center 82, a data gateway 83 enable access gateway and said plurality of packet data network connection 84; wherein:

[0144]终端81,用于向所述接入网关84发送当前要接入TON的网络标识,并接收所述接入网关84返回的连接与当前要接入PDN的IP地址,完成与当前要接入PDN之间连接的建立过程; [0144] 81 terminal, for transmitting a current to the access network identity TON, and receives the current connection with the IP address of PDN access to the access gateway 84 returns to the access gateway 84, to complete the current access procedure to establish a connection between the PDN;

[0145]鉴权中心82,用于得到当前要接入TON的数据网关的标识; [0145] authentication center 82, to be accessed for obtaining current data identification TON gateway;

[0146]数据网关83,用于为所述终端81分配用于连接当前要接入TON的IP地址; [0146] Data Gateway 83, to the terminal 81 for connecting the current to be allocated for the access IP address of TON;

[0147]接入网关84,用于根据所述终端81发送的当前要接入TON的网络标识,从所述鉴权中心82获取当前要接入TON的所述数据网关83的标识;根据所获取的所述数据网关83的标识,从所述数据网关83获取用于连接当前要接入TON的IP地址;并将获取的该IP地址返回给所述终端81。 [0147] The access gateway 84, according to the terminal 81 for transmission to the current access network identifier TON, to obtain access to the data identifying the current TON gateway 83 from the authentication center 82; in accordance with the the gateway obtains identification data 83, 83 for connection to obtain the current IP address to be accessed from the data gateway TON; and obtaining the IP address returned to the terminal 81.

[0148]具体的,接入网关84将收到的终端81所发送的当前要接入PDN的网络标识发送到鉴权中心82; [0148] Specifically, the terminal 81 the access gateway 84 will receive the current transmitted to the PDN access network identification to the authentication center 82;

[0149]鉴权中心82再根据该当前要接入TON的网络标识,在其自身所保存的各TON的网络标识与各TON的数据网关标识的对应关系表中,找到当前要接入PDN的所述数据网关标识,并将找到的所述数据网关的IP地址返回给所述接入网关84; [0149] The authentication center 82 and then to the current access network identifier TON, in the correspondence table identification data gateway itself each stored network identification with the TON TON, locate the current access to the PDN the gateway identification data, and the data to find the gateway IP address back to the access gateway 84;

[0150]接入网关84再根据收到的鉴权中心82返回的数据网关标识,与所述数据网关83建立连接;数据网关83在为所述终端分配用于连接当前要接入TON的IP地址之后,将该IP地址返回给接入网关84; [0150] According to the access gateway 84 and then return the received authentication data center 82 identifying the gateway, the gateway to establish a connection with the data 83; 83 in the IP data gateway for the terminal connected to the current to be allocated for the access of TON after the address, it returns the IP address to the access gateway 84;

[0151]最后,接入网关84接收到所述的连接当前要接入TON的IP地址,并发送到终端81,完成终端81与当前要接入I3DN建立连接的过程。 [0151] Finally, the access gateway 84 receives the current connection to access IP address of TON and sent to the terminal 81, the terminal 81 is completed with the current to be accessed I3DN during connection establishment.

[0152] 这里,所述的鉴权中心82还可以由能够根据TON的网络标识得到该TON的数据网关标识的网元如DNS服务器来代替。 [0152] Here, the authentication center 82 may also be able to be replaced by a network identification TON NE obtained as the DNS server TON data according to the identified gateway.

[0153]这里,通过本发明的用于实现多TON连接的接入网关、及实现多PDN连接的系统,完成终端与多个TON连接的具体流程在上文中已详述,在此不再赘述。 [0153] Here, the present invention TON access multi-gateway connection, and the system for implementing multiple PDN connections, and a plurality of terminals perform specific processes connected TON been detailed in the foregoing, is not repeated herein by .

[0154]此外,为能够解决现有技术无法实现终端连接多个TON的问题,本发明还提供了如下的一种实现多TON连接的方法,参照图9所示,该方法主要包括以下步骤: [0154] In addition, to be able to solve the problems the prior art can not realize a plurality of connection terminals of TON, the present invention further provides a method for multi-TON following connections implemented, with reference to FIG. 9, the method includes the following steps:

[0155]步骤901:接入网关接收到终端发送的当前要接入TON的网络标识; [0155] Step 901: The access gateway receives the access terminal transmits to the current network identifier of TON;

[0156]步骤902:根据所收到的当前要接入TON的网络标识,在已保存的各PDN的包含有网络标识及数据网关标识的信息表中,接入网关查找当前要接入TON的数据网关标识; [0156] Step 902: according to the currently received access network identification TON, in the information table includes identification and data network gateway PDN identifier for each saved, the access gateway to be accessed to find the current of TON data gateway identifier;

[0157]这里,接入网关所保存的各TON的信息可以包含PDN的网络标识、各PDN的数据网关标识等信息,具体可以采用对应关系表的方式来保存,便于根据TON的网络标识,找到该TON的数据网关的标识。 [0157] Here, the access information stored in each gateway may include TON PDN network identity, and other information data identifying the PDN gateways, particularly the correspondence table may be employed to save the way, according to the network facilitating identification of TON, found the identification data gateway of TON.

[0158]步骤903:根据所找到的数据网关的标识,接入网关从所述数据网关获取所述终端连接当前要接入TON的IP地址,并将该IP地址返回给所述终端,完成所述终端与当前要接入的I3DN之间连接的建立过程。 [0158] Step 903: according to the identifier of the found data gateway, the access gateway acquires the data from the gateway terminal is connected to the current access IP address of TON, and returns the IP address to the terminal, completion said connection setup procedure between the terminal and the current to be accessed I3DN.

[0159]其中,上述的实现多TON连接的方法,还可以包括以下步骤: [0159] wherein, connected to said multi TON implementation, may further comprise the step of:

[0160]步骤901A:接入网关获取所述终端能够接入的各个PDN的网络标识和其数据网关标识,并将所获取的各I3DN的网络标识和数据网关标识对应保存在各TON的信息表中; [0160] Step 901A: access gateway acquires the respective terminal to access the PDN identifier and the data network gateway identifier, I3DN each of the acquired data and the network identification stored in the gateway corresponding to the identifier information table TON in;

[0161]具体地,步骤901A中,接入网关获取所述终端能够接入的各个PDN的网络标识和数据网关标识的过程,参照图10所示,具体流程如下: Process [0161] Specifically, in step 901A, an access gateway acquires the terminal may access the network identifier and each PDN gateway identification data, with reference to FIG. 10, the process is as follows:

[0162]步骤1001:接入网关接收所述终端发送的能够接入的各个TON的网络标识; [0162] Step 1001: the gateway receives the access terminal identifiers of network access can TON transmitted;

[0163]具体地,终端能够接入的TON由网络供应商来设定。 [0163] Specifically, the terminal is able to access the TON is set by the network provider.

[0164]步骤1002:接入网关将所收到的各PDN的网络标识发送到鉴权中心或能够得到各PDN的数据网关的标识的网元中; [0164] Step 1002: The access gateway of each network PDN the received identification to the authentication center or the network identification data can be obtained for each PDN gateway in the element;

[0165]步骤1003:接入网关接收所述鉴权中心或所述的网元根据收到各PDN的网络标识所返回的所述终端能够接入的各个PDN的数据网关的标识,使得接入网关能够将各个TON的数据网关标识与其网络标识对应保存在各I3DN的信息中。 [0165] Step 1003: the receiving network access gateway or an authentication center in accordance with said received identification data element for each PDN gateway of the respective terminal identifier of the PDN network access can be returned, such that the access TON respective gateway can identify its data network gateway corresponding to the identification information stored in each of I3DN.

[0166]具体地,鉴权中心或所述的网元在收到接入网关发送的所述终端能够接入的各个PDN的网络标识后,在自身所保存的包含有各PDN的网络标识及其数据网关标识的信息中,根据所收到的各个PDN的网络标识,找到对应的各数据网关标识,并将找到的各个PDN的数据网关标识和/或网络标识返回给所述接入网关。 [0166] Specifically, the authentication center or network element after receiving the PDN network identification of each terminal can access the access gateway sends in itself is stored with each network identification and PDN information which identifies the data gateway, a PDN in accordance with the respective network identifier received, find the respective data corresponding to the identified gateway, and the found data identifying each PDN gateway and / or a network identification is returned to the access gateway.

[0167]参照图11所示,步骤901A中接入网关获取所述终端能够接入的各个PDN的网络标识和数据网关标识的过程,还可以通过以下流程来实现,具体流程为: [0167] Referring to FIG. 11, in step 901A the process of acquiring the access gateway and the network identification data identifying each of the PDN gateways to access terminals, and may also be achieved by the process, specifically the process of:

[0168]步骤1101:接入网关接收所述终端发送的任意一个能够接入的TON的网络标识; [0168] Step 1101: the access network identity of the gateway receiving the TON any terminal capable of transmitting an access;

[0169]步骤1102:接入网关将所收到的所述PDN的网络标识发送到鉴权中心或能够得到各TON的数据网关标识的网元中; [0169] Step 1102: The access gateway to the PDN the received network identification to the network authentication center can be obtained or TON each data element identified in the gateway;

[0170]步骤1103:接入网关接收所述鉴权中心或所述网元根据收到的一个TON的网络标识所返回的所述终端能够接入的各个PDN的数据网关标识及网络标识,使得接入网关能够将所述终端能够接入的各个TON的数据网关标识和网络标识对应保存在各TON的信息中。 [0170] Step 1103: The access gateway receives the authentication center of the network element or by the terminal in accordance with various network PDN identifier received a TON of returned data to access gateway identifier and network identifier, such that TON gateway can access the respective data terminal to access the gateway ID and network ID corresponding to the information stored in each of TON.

[0171]具体地,鉴权中心或所述的网元在收到接入网关发送的一个TON的网络标识后,在自身所保存的包含有终端的身份标识、及终端能够接入的各个TON的网络标识和数据网关标识的信息中,根据所收到的一个PDN的网络标识,先找到所述终端的身份标识,再根据找到的身份标识,找到所述终端能够接入的各个TON的数据网关标识和网络标识,并将找到的各个TON的数据网关标识和网络标识返回给所述接入网关。 [0171] Specifically, the authentication center or network element upon receipt of an access network identifier sent by the gateway of a TON, stored in itself includes the terminal identity of each TON, and the terminal may access network identification information and the identification data gateway, a PDN identifier of the network according to the received, first find the identity of the terminal, and then found according to the identity, the access terminal can find the data for each TON gateway ID and network ID, and each of the found data TON gateway ID and network ID is returned to the access gateway.

[0172]其中,步骤903中接入网关获取用于连接当前要接入TON的IP地址的过程与上文中图4所示的过程完全相同,在此不再赘述。 [0172] wherein, in step 903 the access gateway acquires the current procedure for connecting to the access IP address of TON identical process shown in FIG. 4 hereinabove, is not repeated herein.

[0173] 实际应用中,上述的接入网关由TOSN来实现,鉴权中心可以为Rad i us/AAA,所述的网元可以为DNS服务器,终端可以为MS或AT,数据网关则可以通过HA或LMA来实现。 [0173] In practice, the access gateway described above is implemented by TOSN, an authentication center can Rad i us / AAA, the network element may be a DNS server, the terminal may be a MS or the AT, the data gateway via HA or LMA achieved.

[0174]下面将对本发明图9所示的实现多PDN连接方法的具体实现方式做进一步详细说明。 [0174] will be described in further detail below implement the present invention is shown in FIG. 9 multiple PDN connection method specific implementation.

[0175] 如图12所示,通过包含MS/AT、RAN、PDSN、多个要接入I3DN的多个HA/LMA如HA/LMA-1和HA/LMA-2等、以及Radius/AAA的CDMA网络系统,实现图9所示的多I3DN连接方法的具体流程如下: [0175] 12, by including the MS / AT, RAN, PDSN, to a plurality of access I3DN plurality HA / LMA as HA / LMA-1 and HA / LMA-2 like, and Radius / AAA of CDMA network system, shown in FIG. 9 I3DN specific processes multiple connection method are as follows:

[0176] 步骤1201:MS/AT与PDSN进行PPP会话的LCP协商; [0176] Step 1201: MS / AT and PDSN initiates PPP LCP negotiation session;

[0177] 步骤1202:MS/AT与PDSN交互PPP鉴权信令,携带MS/ΑΤ能够接入的各个I3DN的网络标识NAI/APN或携带默认的一个能够接入I3DN的的网络标识NAI/APN; [0177] Step 1202: MS / AT and PDSN PPP authentication signaling interaction, carrying respective I3DN MS / ΑΤ to access the network identifier NAI / APN can be a default or carry the access network identity I3DN NAI / APN ;

[0178]步骤 1203:PDSN发送接入请求(Access Request)给Radius/AAA,请求鉴权; [0178] Step 1203: PDSN sends an access request (Access Request) to the Radius / AAA, the authentication request;

[0179] 其中,Access Request中可以携带MS/AT的标识IMS1、以及MS/AT能够接入的所有PDN的NAI/APN或者MS/ΑΤ默认发送的能够接入的一个PDN的NAI/APN等。 [0179] wherein, Access Request may carry the MS / AT identifier IMS1, and the MS / AT is able to access all of the PDN NAI / APN or MS / ΑΤ a default PDN can be transmitted from access NAI / APN like.

[0180]步骤 1204: Radius/AAA接收到Access Request后,根据其中的IMSI和NAI/APN等信息,查找MS/ΑΤ能够接入的各个TON的HA/LMA的IP地址和/或网络标识,并向I3DSN回复接入接受(Access Accept)应答,完成鉴权; [0180] Step 1204: IP address Radius / AAA received Access Request, in accordance with which the IMSI and NAI / APN information, find MS / ΑΤ to access each of TON HA / LMA and / or a network identification, and I3DSN receiving replies to access (access Accept) response, the authentication is completed;

[0181] 其中,Access Accept中携带了MS/AT能够接入的所有TON的HA/LMA的IP地址和/或网络标识。 [0181] wherein, Access Accept carries all of TON HA MS / AT to access the / LMA IP address and / or network identification.

[0182] 步骤1205:PDSN在接收到Access Accept之后,将MS/AT的所有能够接入的各PDN的HA/LMA的IP地址与网络标识对应保存在各I3DN的信息中。 [0182] Step 1205: PDSN after receiving the Access Accept, each PDN can all access the MS / AT HA / LMA IP address corresponding to the network identification information stored in each of I3DN.

[0183] 步骤1206:MS/AT向I3DSN发送IPCP配置请求,该IPCP配置请求中携带第一个要接入PDN的NAI/APN,请求完成IPCP协商。 [0183] Step 1206: MS / AT sends I3DSN IPCP configuration request, which carries an IPCP configure request to access the first PDN of NAI / APN, IPCP negotiation request is complete.

[0184] 步骤1207:PDSN接收IPCP配置请求,并根据其中携带的第一个要接入PDN的NAI/APN,找到第一个要接入PDN的HA/LMA-1的IP地址,并根据找到的HA/LMA-1的标识,向HA/LMA-1发送PBU,请求绑定; [0184] Step 1207: PDSN receives an IPCP configure request, and according to the carried first to access the PDN NAI / APN, PDN access to first find the HA / LMA-1 IP address, and according to find identified HA / LMA-1, and to the HA / LMA-1 transmits the PBU, bind request;

[0185] 这里,PDSN还可以根据第二个要接入PDN的NAI/APN,找到HA/LMA-2的其他标识如身份标识,再有该标识,得到HA/LMA-2的IP地址,根据HA/LMA-2的IP地址向HA/LMA-2发送PBU0 [0185] Here, the PDSN may also be a second PDN access of NAI / APN, find other identification HA / LMA-2, such as identity, the identification Furthermore, to obtain HA / LMA-2 IP address, in accordance with IP address of the HA / LMA-2 transmits PBU0 to HA / LMA-2

[0186] 其中,PBU中可以包含HA/LMA-1的IP地址。 [0186] wherein, PBU can contain HA / LMA-1 IP address.

[0187]步骤 1208:HA/LMA-1 向PDSN 回应PBA; [0187] Step 1208: HA / LMA-1 response to the PBA to the PDSN;

[0188] 其中,PBA中携带了HA/LMA-1为MS/ΑΤ分配的连接第一个要接入I3DN的IP地址。 [0188] wherein, PBA carries the connection HA / LMA-1 to MS / ΑΤ assigned a first IP address to be accessed I3DN.

[0189] 步骤1209: PDSN接收到I3BA后,向MS/ΑΤ发送IPCP配置应答信令,MS/ΑΤ收到该IPCP配置应答信令后,根据其中的连接第一个要接入I3DN的IP地址与第一个要接入的TON建立连接; [0189] Step 1209: after receiving the PDSN I3BA, transmits an IPCP configure response signaling to MS / ΑΤ, MS / ΑΤ IPCP configuration after receiving the reply signaling, wherein the first connector according to the access IP address I3DN establishing a first connection to access the TON;

[0190] 其中,IPCP配置应答信令中携带MS/AT连接第一个要接入TON的IP地址。 [0190] wherein, IPCP configuration response signaling carries MS / AT is connected to a first access IP address of TON.

[0191] 步骤1210:MS/AT发送携带有第二个要接入I3DN的NAI/APN的DHCP请求给H)SN,请求连接第二个要接入的ton。 [0191] Step 1210: MS / AT to transmit carries a second access I3DN of NAI / APN to the DHCP request H) SN, connected to a second request to access ton of.

[0192] 步骤1211:PDSN根据DHCP请求中携带的第二个要接入TON的NAI/APN,找到第二个要接入I3DN的HA/LMA-2的IP地址,并根据找到的说/11^-2的1?地址,向HA/LMA-2发送I3BU,请求绑定; [0192] Step 1211: PDSN carried in a DHCP request to the second access TON of NAI / APN, to find a second to access the HA IP address I3DN / LMA-2, and according to said Found / 11 ? 1 ^ -2 addresses to the HA / LMA 2-transmitting I3BU, bind request;

[0193] 这里,PDSN还可以根据第二个要接入PDN的NAI/APN,找到HA/LMA-2的其他标识如身份标识,再有该找到的标识,得到HA/LMA-2的IP地址,根据HA/LMA-2的IP地址向HA/LMA-2发送PBU。 [0193] Here, the PDSN may also be a second PDN access of NAI / APN, find other identification HA / LMA-2, such as identity, then there identifies the found, to obtain the IP address of HA / LMA-2 of , sends a PBU to the HA / LMA-2 the HA / LMA-2 IP address.

[0194] 其中,PBU中可以包含HA/LMA-2的IP地址。 [0194] wherein, PBU may include the IP address HA / LMA-2's.

[0195]步骤 1212: HA/LMA-2 向PDSN 回应PBA ; [0195] Step 1212: HA / LMA-2 PBA response to the PDSN;

[0196] 其中,PBA中包含了HA/LMA-2为MS/ΑΤ分配的连接第二个要接入I3DN的IP地址。 [0196] wherein, PBA contains the HA / LMA-2 MS / ΑΤ allocated for the connection to the second IP address of the access I3DN.

[0197]步骤1213:?05~发送0!«^请求给拟/11^-2。 [0197] Step 1213:? 05 ~ 0 transmits «^ intends to request / 11 ^ -2!.

[0198]步骤 1214: HA/LMA-2 向PDSN 回复DHCP 应答; [0198] Step 1214: HA / LMA-2 returns a DHCP response to the PDSN;

[0199] 这里,DHCP应答中可以包含HA/LMA-2为MS/ΑΤ分配的连接第二个要接入I3DN的IP地址。 [0199] Here, DHCP response may comprise HA / LMA-2 was MS / ΑΤ allocated connection to the second access IP address of I3DN.

[0200] 步骤1215:H)SN向MS/ΑΤ回复DHCP应答,完成MS/ΑΤ获得连接第二个要接入PDN的IP地址的过程; [0200] Step 1215: H) SN returns a DHCP response to the MS / ΑΤ, complete MS / ΑΤ obtain a connection to the second IP address of the PDN access of the process;

[0201 ] 这里,DHCP应答中可以包含HA/LMA-2为MS/ΑΤ分配的连接第二个要接入I3DN的IP地址。 [0201] Here, DHCP response may comprise HA / LMA-2 was MS / ΑΤ allocated connection to the second access IP address of I3DN.

[0202] 步骤1216:1^/^1'、1^1?03~进行交互,完成003协商)10建立和了? [0202] Step 1216: 1 ^ / ^ 1 ', 1 ^ 103 ~ interact completed 003 consultations) and the establishment of 10?? 1'安装等流程,MS/ΑΤ完成与第二个要接入的TON之间建立连接的过程。 1 'installation process, MS / ΑΤ complete the process of establishing a connection between the access to the second and TON.

[0203]本实施例中,在MS/ΑΤ需要连接第三个要接入TON、第四个要接入TON等后续的多个要接入I3DN时,重复步骤1209-1215的流程即可实现。 [0203] In this embodiment, the MS / ΑΤ need to be connected to a third TON access, a subsequent access to the fourth plurality of TON isochronous access to I3DN, repeat steps 1209-1215 of the flow can be realized .

[0204] 本实施例也可以通过IPv6CP和DHCPv6来实现。 [0204] This embodiment can also be achieved by IPv6CP and DHCPv6.

[0205]为实现图9所示的多PDN连接的方法,本发明还提供了一种实现多PDN连接的接入网关,参照图13所示,主要包括:存储单元135、第二接收单元131、查找单元132、第三获取单元133和第二发送单元134,其中: [0205] In order to achieve multiple PDN connection method shown in FIG. 9, the present invention further provides an access gateway for implementing multiple PDN connections, with reference to FIG. 13, including: a storage unit 135, a second receiving unit 131 , search unit 132, a third obtaining unit 133 and second transmitting unit 134, wherein:

[0206]存储单元135,用于保存各个TON的包含TON的网络标识和数据网关标识的信息表; [0206] storage unit 135 for storing data and network identification information table containing identification gateway TON TON of each;

[0207]第二接收单元131,用于接收到终端发送的当前要接入TON的网络标识; [0207] The second receiving unit 131, configured to receive the current transmitted to the terminal to the access network identity of TON;

[0208]查找单元132,用于根据所述第二接收单元131收到的当前要接入TON的网络标识,在存储单元135中保存的各信息表中,查找当前要接入I3DN的数据网关标识; [0208] search unit 132, according to the second receiving unit 131 to receive a current access network identifier of TON, in the information table 135 stored in the storage unit, the access to find the current data gateway I3DN identity;

[0209]第三获取单元133,用于根据所述查找单元132找到的数据网关标识,从所述数据网关获取所述终端连接当前要接入I3DN的IP地址; [0209] The third obtaining unit 133, a gateway for the data search unit 132 to find the identifier of the data acquired from the gateway terminal is connected to the current access IP address of I3DN;

[0210]第二发送单元134,用于将所述第三获取单元133获取的所述终端连接当前要接入TON的IP地址返回给所述终端,完成所述终端与当前要接入的TON之间连接的建立过程。 The terminal [0210] The second transmitting unit 134 for the third acquiring unit 133 acquires the current connection to access IP address is returned to the terminal TON, complete access to the terminal and the current TON to establish a connection between the process.

[0211]其中,所述接入网关还包括第四获取单元136,其中: [0211] wherein, the access gateway 136 further includes a fourth acquiring unit, wherein:

[0212]第四获取单元136,用于获取所述终端能够接入的各个TON的网络标识和数据网关标识,并保存至存储单元135。 [0212] The fourth obtaining unit 136, configured to obtain the terminal may access the network identifier and the respective data TON gateway identifier, and saved to the memory unit 135.

[0213]其中,所述第四获取单元136,具体用于: [0213] wherein the fourth obtaining unit 136, configured to:

ί02^4] 接收所述终端发送的任意一个能够接入的F1DN的网络标识或能够接入的各个PDN的网络标识,并将收到的一个能够接入TON的网络标识或各个TON的网络标识发送到鉴权中心或能够得到各TON的数据网关标识的网元;接收所述鉴权中心或所述网元根据所述一个能够接入TON的网络标识或各个PDN的网络标识所返回的各个TON的数据网关标识和/或网络标识。 ί02 ^ 4] sent by the terminal receiving any of the accessible F1DN a network identification or a network accessible by each PDN identifier, and a network identifier to access or receive the respective network identification of TON TON or the authentication center transmits to the network element can be obtained for each data gateway TON identifier; receiving the authentication center or the network element according to the returned identifier to access the network or a PDN TON of each individual network identification TON data gateway identifier and / or network identification.

[0215]为实现图9所示的多TON连接方法,本发明还提供了一种实现多PDN连接的系统,如图14所示,所述系统包括:终端141、接入网关142和数据网关143,其中: [0215] The multi TON connection method shown in FIG. 9, the present invention also provides a system for implementing multiple PDN connections, shown in Figure 14, the system comprising: a terminal 141, the access gateway 142 and data gateway 143, of which:

[0216]终端141,用于向所述接入网关142发送当前要接入TON的网络标识,并接收所述接入网关142返回的用于连接当前要接入I3DN的IP地址,完成与当前要接入PDN之间连接的建立过程; [0216] terminal 141, configured to send to the access gateway 142 to access the current network identifier TON, and receiving the access gateway 142 for connecting a current to be returned by the IP address of the access I3DN, complete with current to access the PDN connection establishment procedure;

[0217]接入网关142,用于在接收到所述终端发送的当前要接入PDN的网络标识时,根据所收到的当前要接入PDN的网络标识,在自身已保存的所述终端能够接入的各PDN的包含PDN的网络标识和数据网关标识的信息表中,查找当前要接入PDN的数据网关标识;并根据所找到的数据网关标识,从所述的数据网关143获取用于连接当前要接入PDN的IP地址,并将该IP地址返回给所述终端; [0217] Access Gateway 142, when receiving the current sent by the terminal to the access network PDN identifier received in accordance with the current access network to the PDN identifier, the terminal itself saved information table and the identification data network gateway PDN identifier contained in each of the PDN is able to access, to find the current data access PDN gateway identifier; and the gateway identifier according to the data found, from the data acquired by the gateway 143 the current connection to the PDN access IP address, and returns the IP address to the terminal;

[0218]数据网关143,用于为所述终端分配用于连接当前要接入TON的IP地址。 [0218] Data Gateway 143, for distribution to the terminal for connection to the current access IP address of TON.

[0219]其中,所述接入网关142还用于: [0219] wherein, the access gateway 142 is further configured to:

[0220]获取所述终端能够接入的各个PDN的网络标识和数据网关标识,并将所获取的各个TON的网络标识和数据网关标识对应保存在各TON的信息表。 [0220] Gets the PDN each terminal to access the network identifier and identification data gateway, and the TON of each network identifier and the acquired data stored in the gateway corresponding to the identifier information table TON.

[0221]具体地,所述终端141还用于向所述接入网关发送能够接入的任意一个或各个TON的网络标识。 [0221] Specifically, the transmitting terminal 141 is further configured to access any one or TON respective network identification to the access gateway.

[0222]所述系统还包括鉴权中心144,用于根据TON的网络标识,查找所述终端能够接入的一个或多个TON的数据网关标识和/或网络标识,并返回给所述接入网关; [0222] The system further comprises an authentication center 144, according to the network identifier of TON, the access terminal can find the data identifying one or more gateway TON and / or network identification, and returns to the ground the gateway;

[0223]所述接入网关142,具体用于接收所述终端发送的能够接入的一个或多个PDN网络标识并转发给所述鉴权中心144、以及接收所述鉴权中心144所返回的所述终端能够接入的各个TON的数据网关标识和/或网络标识并保存在各TON的信息表中。 [0223] The access gateway 142 is specifically configured to access a terminal receiving the plurality of transmitted or forwarded to the PDN identifier and the authentication center 144, and receives the returned authentication center 144 TON respective data gateway identifier of the terminal to access and / or a network identification of TON and stored in the information table.

[0224] 这里,所述的鉴权中心143还可以由能够根据PDN的网络标识得到该PDN的数据网关标识的网元如DNS服务器来代替。 [0224] Here, the authentication center 143 may also be replaced by the PDN can be obtained network identifier of the network element such as a DNS server PDN gateway identifier according to the data.

[0225] 在实际应用中,通过图13所示的实现多TON连接的接入网关、及或通过图14所示的实现多PDN连接的系统,完成终端与多个PDN连接的具体流程,已在上文详述,在此不再赘述。 [0225] In practice, the multi TON implementation shown in FIG. 13 by an access gateway connection, and the system or implemented by multiple PDN connections shown in FIG. 14, the terminal complete with the specific process multiple PDN connections, it has been in detailed above, are not repeated here.

[0226]以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0226] The above are only preferred embodiments of the present invention but are not intended to limit the scope of the present invention, any modifications within the spirit and principle of the present invention, equivalent replacements and improvements are It is included within the scope of the present invention.

Claims (7)

  1. 1.一种实现多分组数据网络PDN连接的方法,其特征在于,所述方法包括: 接入网关接收终端发送的当前要接入PDN的网络标识; 根据所接收到的当前要接入PDN的网络标识,接入网关获取当前要接入TON的数据网关的标识; 根据所获取的数据网关的标识,所述的接入网关从所述数据网关获取所述终端连接当前要接入TON的IP地址,并返回给所述终端,完成所述终端与当前要接入PDN之间连接的建立过程; 所述的从所述数据网关获取所述终端连接当前要接入PDN的IP地址,具体为: 根据所收到的数据网关标识,接入网关与当前要接入PDN的数据网关建立连接; 所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关; 接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址; 所述获取当前要接入PDN 1. A method for multiple packet data network PDN connection is achieved, characterized in that, said method comprising: a current access to the PDN gateway access network identifier sent by a terminal; current according to the received access to the PDN network identifier, an access gateway to obtain the current access gateway identification data TON; according to the acquired identification data gateway, said gateway access gateway acquires the data from the current terminal is connected to an IP access TON address, and returns to the terminal, the terminal and complete the process of establishing a current connection between the access to the PDN; obtaining the said terminal is connected to the current IP address of the PDN access of data from the gateway, in particular : according to the received identification data gateway, the access gateway to establish a connection with the current data access PDN gateway; data gateway for the terminal is assigned to the current connection to access IP address of the PDN, and the returning the IP address assigned to the access gateway; access gateway via the established connection with the data gateway, receives an IP address of the data returned by the gateway; obtaining the current access to PDN 的数据网关标识,包括: 将所接收到的当前要接入PDN的网络标识发送到鉴权中心或能够得到当前要接入PDN的数据网关标识的网元; 接收所述鉴权中心或所述的网元根据所收到的当前要接入PDN的网络标识返回的当前要接入I3DN的数据网关标识;其中, 所述鉴权中心或网元可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心或网元根据所收到的当前要接入TON的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的数据网关的标识;或者,所述鉴权中心或网元根据所收到的当前要接入PDN的网络标识,从保存有各PDN网络标识及各PDN的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 Gateway identifier data, comprising: transmitting to the received current to the PDN access network identifier to an authentication center, or can be obtained for the NE data access gateway PDN identifier; receiving the authentication center or the the network element according to the current received PDN access network identification is returned to the current access gateway identifier I3DN data; wherein, the authentication center or the network element may be configured for each stored network identifier and each of TON PDN identification data gateway, an authentication center or network element according to the currently received access network identification TON or by finding ways to resolve and identify the current query to obtain data gateway to access the PDN; or said discriminators right center or network element according to the currently received access network PDN identifier from another device identifier stored in each network identifier and each PDN gateway PDN data acquired in the current data to be accessed TON gateway identifier.
  2. 2.—种实现多分组数据网络连接的接入网关,其特征在于,所述接入网关包括:第一接收单元、第一获取单元、第二获取单元和第一发送单元,其中: 第一接收单元,用于接收终端发送的当前要接入PDN的网络标识; 第一获取单元,用于根据所述第一接收单元收到的当前要接入TON的网络标识,获取当前要接入TON的数据网关的标识; 第二获取单元,用于根据所述第一获取单元获取的数据网关的标识,从所述数据网关获取所述终端连接当前要接入I3DN的IP地址; 第一发送单元,用于将所述第二获取单元获取的IP地址返回给所述终端;其中, 所述第二获取单元包括连接和第二接收模块; 连接模块,用于根据所述第一获取单元获取的数据网关标识,与当前要接入TON的数据网关建立连接; 第二接收模块,用于根据所述连接模块所建立的连接,接收所述数据网关返 2.- kinds of multi-packet data network connected to the access gateway, wherein the access gateway comprises: a first receiving unit, a first acquiring unit, a second acquiring unit and a first sending unit, wherein: the first receiving means for receiving a current to the access terminal transmits a network PDN identifier; a first obtaining unit, according to the first receiving unit to receive a current access network identifier TON, to obtain the current access TON gateway identification data; a second acquisition unit for acquiring first identification data gateway based on the acquiring unit, acquiring the access terminal is connected to the current IP address from the data gateway I3DN; a first transmission unit , the second acquisition unit for acquiring an IP address back to the terminal; wherein the second acquiring unit comprises a receiving module and a second connection; connection module, the first acquisition unit for acquiring according data gateway identification, to establish a connection with the current data access gateway TON; a second receiving module, for connecting the connector according to the established module, receiving said return data gateway 的该数据网关为所述终端分配的用于连接当前要接入TON的IP地址; 所述第一获取单元包括发送模块和第一接收模块,其中: 发送模块,用于将所述第一接收单元所收到的当前要接入PDN的网络标识发送到鉴权中心或能够得到当前要接入TON的数据网关标识的网元; 第一接收模块,用于接收所述鉴权中心或所述的网元根据所收到的当前要接入PDN的网络标识返回的当前要接入TON的数据网关标识;其中, 所述鉴权中心或网元可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心或网元根据所收到的当前要接入TON的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的数据网关的标识;或者,所述鉴权中心或网元根据所收到的当前要接入PDN的网络标识,从保存有各PDN网络标识及各PDN的数据网关的标识的其他设备中获取当前要接入TON的数据网关标 This data gateway for the terminal to be allocated for the current connection TON access IP address; the first acquisition unit includes a first receiving module and a transmitting module, wherein: a sending module, for receiving said first unit to be currently received PDN access network identification to the authentication center can be obtained or the current data to be accessed TON identified gateway network element; a first receiving module, configured to receive the authentication center or the the network element according to the current received PDN access network identification is returned to the current access gateway identifier TON data; wherein, the authentication center or the network element may be configured for each stored network identifier and each of TON PDN identification data gateway, an authentication center or network element according to the currently received access network identification TON or by finding ways to resolve and identify the current query to obtain data gateway to access the PDN; or said discriminators right center or network element according to the current received PDN access network identifier, a device identifier from the storage of each other PDN network identification data and each PDN gateway to get the current data gateway access standard TON 识。 knowledge.
  3. 3.—种实现多分组数据网络连接的系统,其特征在于,所述系统包括终端、鉴权中心、数据网关和用于实现多分组数据网络连接的接入网关;其中: 终端,用于向所述接入网关发送当前要接入TON的网络标识,并接收所述接入网关返回的连接与当前要接入I3DN的IP地址,完成与当前要接入I3DN之间连接的建立过程; 鉴权中心,用于得到当前要接入PDN的数据网关的标识; 数据网关,用于为所述终端分配用于连接当前要接入PDN的IP地址; 接入网关,用于根据所述终端发送的当前要接入PDN的网络标识,从所述鉴权中心获取当前要接入TON的所述数据网关的标识;根据所获取的所述数据网关的标识,从所述数据网关获取用于连接当前要接入I3DN的IP地址;并将获取的该IP地址返回给所述终端;其中,所述的从所述数据网关获取用于连接当前要接入PDN的IP地址,具体为: 根据 3.- kinds of system for implementing a multi-packet data network connection, wherein said system includes a terminal, an authentication center, the data gateway and the access gateway for implementing a multi-packet data network connection; wherein: a terminal, configured to the access gateway sends this to the access network identity TON, and receiving the access gateway is connected to the current return of the IP address to be accessed I3DN complete the process of establishing a connection between the current to be accessed I3DN; Kam right center, to be accessed for obtaining current data identifying the PDN gateway; data gateway for connection to the terminal is assigned to the current IP address to the PDN access; an access gateway, according to the transmitting terminal current network to access the PDN identifier, identifying the data acquired to the access gateway TON current from said authentication center; the gateway identifies the data acquired from the data acquisition gateway for connecting to access the current IP address of I3DN; and obtaining the IP address returned to the terminal; wherein the data acquired from the access gateway for connecting to the current IP address of the PDN, specifically: the 收到的数据网关标识,接入网关与当前要接入PDN的数据网关建立连接; 所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关; 接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址; 所述鉴权中心可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心根据所收到的当前要接入PDN的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的数据网关的标识;或者,所述鉴权中心根据所收到的当前要接入TON的网络标识,从保存有各TON网络标识及各TON的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 Identifying the received data gateway, the access gateway to establish a current data access PDN gateway connection; the data gateway is allocated for the terminal connected to the current IP address of the PDN to be accessed, and the assigned IP address back to the access gateway; access gateway via the established connection with the data gateway, receives an IP address of the data returned by the gateway; the stored authentication center may be configured for each network identifier and each of TON PDN identification data gateway, an authentication center in accordance with the currently received access network to the PDN identifier or parsing, and by finding ways to get the query to identify the current data access PDN gateway; or, according to said authentication center to access the current received TON of network identification, preservation from another device identifier identifies each network and each TON TON of data acquisition gateway to access current data TON gateway identifier.
  4. 4.一种实现多分组数据网络连接的方法,其特征在于,所述方法包括: 接收到终端发送的当前要接入PDN的网络标识; 根据所收到的当前要接入PDN的网络标识,在已保存的各TON的包含有网络标识及数据网关标识的信息表中,查找当前要接入TON的数据网关IP标识; 根据所找到的数据网关标识,从所述数据网关获取所述终端连接当前要接入PDN的IP地址,并将该IP地址返回给所述终端,完成所述终端与当前要接入的TON之间连接的建立过程;其中, 所述的从所述数据网关获取所述终端连接当前要接入PDN的IP地址,具体为: 根据所收到的数据网关标识,接入网关与当前要接入PDN的数据网关建立连接; 所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关; 接入网关通过与所述数据网关建立的连接,接收所述数据 4. A method of multiple packet data network connection implemented, characterized in that the method comprises: receiving a current to be transmitted to the access terminal identifier of the PDN network; network PDN identifier received in accordance with the current to be accessed, in the network information table includes identification data and each of the identified gateway TON saved, the current to be accessed to find the gateway IP identification data TON; gateway identifier according to the data found, the data acquired from the gateway terminal is connected to access the current IP address of the PDN, and returns the IP address to the terminal, the terminal and complete the process of establishing a current connection between the access to the TON; wherein said acquiring said data from the gateway said terminal is connected to the current IP address of the PDN access, specifically: the received identification data gateway, the access gateway to establish a connection with the current data access PDN gateway; data gateway for the terminal is assigned with the the current connection to the PDN access IP address, and returns to the access gateway allocated IP address; the access gateway via the established connection with the data gateway, receiving the data 关返回的IP地址; 在接收到终端发送的当前要接入PDN的网络标识之前,所述方法还包括: 获取所述终端能够接入的各个TON的网络标识和数据网关标识,并将所获取的各个TON的网络标识和数据网关标识对应保存在各I3DN的信息表中; 所述的获取所述终端能够接入的各个PDN的网络标识和数据网关标识的过程,具体为: 接收所述终端发送的任意一个能够接入的PDN的网络标识; 将收到的所述网络标识发送到鉴权中心或能够得到各PDN的数据网关的标识的网元中; 接收所述鉴权中心或所述的网元根据所述网络标识返回的所述终端能够接入的各个TON的数据网关标识和/或网络标识; 所述鉴权中心或网元可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心或网元根据所收到的当前要接入TON的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的 Gateway IP address returned; prior to receiving the current sent from the terminal to the access network PDN identifier, the method further comprises: obtaining the terminal may access the network identifier and the respective data TON gateway identifier and the acquired TON respective gateway network identification and data corresponding to the identifier stored in the information table I3DN; each of the acquisition process of the PDN terminal to access the network identifier and the gateway ID data, specifically: the receiving terminal any network identification to access the PDN transmitted; the received identification to the network authentication center or the network identification data can be obtained for each PDN gateway element; receiving the authentication center or the the gateway network element according to the data identifying the respective terminal TON identifier returned by the network to access and / or a network identification; authentication center or the network element may be configured for each stored network identifier and each PDN data TON identification of the gateway, authentication center or network element TON of network identity by looking to get or parse and query mode according to the received current access to the current access to the PDN 据网关的标识;或者,所述鉴权中心或网元根据所收到的当前要接入PDN的网络标识,从保存有各PDN网络标识及各PDN的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 According gateway identification; or the authentication center or network element according to the currently received access network PDN identifier from another device identifier stored in each network identifier and each PDN gateway PDN data acquired in the current TON access to data gateway identifier.
  5. 5.—种实现多分组数据网络连接的接入网关,其特征在于,所述接入网关包括:存储单元、第二接收单元、查找单元、第三获取单元和第二发送单元,其中: 存储单元,用于保存各个PDN的包含PDN的网络标识和数据网关标识的信息表; 第二接收单元,用于接收到终端发送的当前要接入PDN的网络标识; 查找单元,用于根据所述第二接收单元收到的当前要接入TON的网络标识,在所述存储单元保存的各信息表中,查找当前要接入TON的数据网关标识; 第三获取单元,用于根据所述查找单元找到的数据网关标识,从所述数据网关获取所述终端连接当前要接入I3DN的IP地址; 第二发送单元,用于将所述第三获取单元获取的所述终端连接当前要接入PDN的IP地址返回给所述终端,完成所述终端与当前要接入的TON之间连接的建立过程;其中, 所述的从所述数据网关获取所述 5.- plurality of implementations an access gateway connected to a packet data network, wherein the access gateway comprising: a storage unit, a second receiving unit, a searching unit, the third acquisition unit, and a second sending unit, wherein: the storage means information table and the identification data network gateway PDN identifier for holding the respective PDN comprising; a second receiving unit for receiving a current to be transmitted to the terminal access network PDN identifier; searching unit, according to the a second receiving unit to receive a current access network identifier TON, each information table stored in the storage means, to find the current data access gateway identifier TON; third obtaining unit, according to the lookup found data gateway identification unit acquires data from the current terminal is connected to said gateway access IP address I3DN; a second sending unit, for the third acquiring unit acquires the terminal connected to the current access IP address of the PDN is returned to the terminal, to complete the process of establishing a current between the terminal to be connected and accessed TON; wherein said acquiring said data from said gateway 终端连接当前要接入PDN的IP地址,具体为: 根据所收到的数据网关标识,接入网关与当前要接入PDN的数据网关建立连接; 所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关; 接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址; 所述接入网关还包括第四获取单元,其中: 第四获取单元,用于获取所述终端能够接入的各个TON的网络标识和数据网关标识,并保存至存储单元; 所述的获取所述终端能够接入的各个PDN的网络标识和数据网关标识的过程,具体为: 接收所述终端发送的任意一个能够接入的PDN的网络标识; 将收到的所述网络标识发送到鉴权中心或能够得到各PDN的数据网关的标识的网元中; 接收所述鉴权中心或所述的网元根据所述网络标识返回的所述终端能够接入的 A terminal connected to the current IP address of the PDN access, specifically: According to the received identification data gateway, the access gateway to establish a connection with the current data access PDN gateway; the data gateway for the terminal allocation for the current connection to the PDN access IP address, and returns to the access gateway allocated IP address; returned by the access gateway connection, the gateway receiving the data established with the gateway IP address data; the said access gateway further comprises a fourth acquiring unit, wherein: a fourth obtaining means, for obtaining network identification data and the identifiers of the gateways to access the terminal TON and stored to the storage unit; said obtaining said process each terminal to access the PDN identifier and the network identification data gateway, specifically: the terminal receiving any transmission of a PDN identifier to access the network; the received identification to the network authentication center or there can be obtained data network PDN gateway element identifier; receiving the authentication center or in the network element based on the terminal identifier is returned to the network can be accessed 个TON的数据网关标识和/或网络标识; 所述鉴权中心或网元可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心或网元根据所收到的当前要接入TON的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的数据网关的标识;或者,所述鉴权中心或网元根据所收到的当前要接入PDN的网络标识,从保存有各PDN网络标识及各PDN的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 A TON of identification data gateway and / or a network identification; authentication center or the network element may be configured to identify individual stored TON and each PDN network identification data gateway, an authentication center or network element according to the current received TON access network identified by lookup or query parsing and identifying the current way to get access to the data gateway PDN; or the authentication center or network element according to the received current access network identifier the PDN to get saved from another device identifier of each PDN network identification data and each PDN gateway to access current data TON gateway identifier.
  6. 6.—种实现多分组数据网络连接的系统,其特征在于,所述系统包括:终端、接入网关和数据网关,其中: 终端,用于向所述接入网关发送当前要接入TON的网络标识,并接收所述接入网关返回的所述终端连接当前I3DN的IP地址,完成与当前要接入I3DN之间连接的建立过程; 接入网关,用于在接收到所述终端发送的当前要接入PDN的网络标识时,根据所收到的当前要接入PDN的网络标识,在自身已保存的各PDN的包含有TON的网络标识和数据网关标识的信息表中,查找当前要接入PDN的数据网关标识;并根据所找到的数据网关标识,从数据网关获取用于连接当前要接入TON的IP地址,并将该IP地址返回给所述终端,所述终端根据该IP地址与当前要接入的I3DN建立连接; 数据网关,用于为所述终端分配用于连接当前要接入PDN的IP地址;其中, 所述的从数据网关获取用于连接当 6.- kinds of system for implementing a multi-packet data network connection, wherein, said system comprising: a terminal, an access gateway and a PDN gateway, wherein: a terminal, configured to send to the access gateway to access current of TON network identification and the terminal receiving the access gateway is connected to the current IP address returned I3DN complete the process of establishing a connection between the current I3DN to access; an access gateway, for sending to the receiving terminal, to access the current network PDN identifier received in accordance with the current access network to the PDN identifier, PDN itself in each of the saved information table contains TON network identifier and the identification data gateway, to find the current PDN gateway identifier of the access data; and the gateway based on the data identifier found, for connecting the current to obtain the IP address of the access gateway TON from the data, and returns the IP address to the terminal, the terminal according to the IP establishing an address to be accessed I3DN currently connected; a data gateway for the terminal is assigned to the current connection is used to access the IP address of the PDN; wherein said connection when the gateway for acquiring data from the 要接入PDN的IP地址,具体为: 根据所收到的数据网关标识,接入网关与当前要接入PDN的数据网关建立连接; 所述的数据网关为所述终端分配用于连接当前要接入PDN的IP地址,并将所分配的IP地址返回给所述的接入网关; 接入网关通过与所述数据网关建立的连接,接收所述数据网关返回的IP地址;所述接入网关还用于: 获取所述终端能够接入的各个TON的网络标识和数据网关标识,并将所获取的各个TON的网络标识和数据网关标识对应保存在各I3DN的信息表中; 所述系统还包括鉴权中心,其中, 鉴权中心,用于根据PDN的网络标识,查找所述终端能够接入的一个或者多个PDN的数据网关标识和/或网络标识,并返回给所述接入网关; 所述接入网关,具体用于接收所述终端发送的能够接入的一个或多个PDN网络标识并转发给所述鉴权中心;以及,接收所述鉴权中心所 To access the IP address of the PDN, in particular: The identification of the received data gateway, an access gateway to establish a connection with the current data access PDN gateway; said data gateway for the terminal to be allocated for the current connection PDN access IP address, and returns to the access gateway allocated IP address; the access gateway via the established connection with the data gateway, receives an IP address of the data returned by the gateway; the access gateway is further configured to: obtain respective TON terminal to access the network identification and the identification data gateway, and the TON of each network identifier and the acquired data stored in the gateway corresponding to the identifier information in the table I3DN; the system further comprising an authentication center, wherein the authentication center, according to the network identifier of the PDN, to find the one or more terminals to access the PDN gateway identification data and / or network identification, and returns to the access a gateway; the access gateway, configured to access a terminal receiving the plurality of transmitted or forwarded to the PDN identifier and the authentication center; and, receiving said authentication center 回的所述终端能够接入的各个TON的数据网关标识和/或网络标识并保存在各TON的信息表中; 所述鉴权中心可以配置保存有各PDN网络标识及各TON的数据网关的标识,鉴权中心根据所收到的当前要接入PDN的网络标识通过查找或解析并查询的方式来得到当前要接入PDN的数据网关的标识;或者,所述鉴权中心根据所收到的当前要接入TON的网络标识,从保存有各TON网络标识及各TON的数据网关的标识的其他设备中获取当前要接入TON的数据网关标识。 The terminal is able to access the respective back TON data gateway identifier and / or a network identification of TON and stored in the information table; said stored authentication center may be configured for each network identifier and each PDN gateway data TON identification, the authentication center according to the current received PDN access or a network identification by searching and parsing the query to give way to identify the current data access PDN gateway; or, according to the received authentication center to access the current network identifier TON, from another device identifier stored in each network identifier and each TON TON data gateway to get the current data access gateway identifier TON.
  7. 7.根据权利要求6所述实现多分组数据网络连接的系统,其特征在于,所述终端还用于向所述接入网关发送网络标识。 The system 6 of the multi-packet data network connection according to claim, characterized in that the terminal further configured to send a network identifier to the access gateway.
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