CN101193117B - Intercommunication method, access network and wireless network between terminals - Google Patents

Intercommunication method, access network and wireless network between terminals Download PDF

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CN101193117B
CN101193117B CN 200710129406 CN200710129406A CN101193117B CN 101193117 B CN101193117 B CN 101193117B CN 200710129406 CN200710129406 CN 200710129406 CN 200710129406 A CN200710129406 A CN 200710129406A CN 101193117 B CN101193117 B CN 101193117B
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corresponding
terminal
network
ms
target
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CN101193117A (en )
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李修奕
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service

Abstract

The invention provides a method for terminal intercommunication in the wireless network based on MIP, which comprises the following steps: an access network corresponding to a source terminal receiving the service flow sent by the source terminal; the access network corresponding to the source terminal determining the access network corresponding to an object terminal, or determining a core network and the access network corresponding to the object terminal; if the object terminal of service flow and the source terminal are under the same core network but corresponding to different access networks, the access network corresponding to the source terminal directly transmitting the service flow to the access network corresponding to the object terminal; the access network corresponding to the object terminal transmitting the service flow to the object terminal; wherein the access network corresponding to the object terminal is determined according to at least one mode below: inquiring a mapping relation between a pre-stored service flow mark and an object terminal address and the access networks corresponding thereto, so as to determine the access network corresponding to the object terminal; inquiring the access network corresponding to the object terminal from the access network corresponding to the source termianl and/or the core network; inquiring the access network corresponding to the object terminal from all the access notworks under the same core network.

Description

终端之间互通的方法、接入网及无线网络 The method of interworking between a terminal, an access network and wireless network

技术领域 FIELD

[0001] 本发明涉及无线通信技术,尤其涉及基于移动互联网协议(Mobile InternetProtocol,MIP)的无线网络中的终端之间互通技术。 [0001] The present invention relates to wireless communication technology, in particular, it relates to interworking between the technology based on mobile internet protocol (Mobile InternetProtocol, MIP) network in a wireless terminal.

背景技术 Background technique

[0002] 无线网络是目前研究的热点之一,其包括多种类型的网络,例如IEEE802. 16标准提到的微波接入全球互通(Worldwide InteroperabilityMicrowave Access,WiMAX)网络。 [0002] Wireless networks are one of the hot current study, which include various types of networks, such as microwave IEEE802. 16 mentioned standard a WiMAX (Worldwide InteroperabilityMicrowave Access, WiMAX) network. WiMAX网络技术是一种无线城域网(WMAN)技术,这种技术针对微波和毫米波频段提出了一种新的空中接口标准。 WiMAX is a wireless metropolitan area network technology (WMAN) technology, the technology for microwave and millimeter-wave bands proposed a new air interface standard. WiMAX是一种新兴的无线通信技术,用于传输无线信号,它能提供面向互联网的高速连接,使用这种技术,用户可以在50公里以内的范围以非常快的速度进行数据通信。 WiMAX is an emerging wireless communication technology for transmitting a wireless signal, it can provide high-speed Internet connection-oriented, using this technique, the user can perform data communication within the range of 50 km at a very fast speed.

[0003] WiMAX论坛成立于2001年4月9日,是一个由业界领先的通信新产品及设备公司共同建立的非盈利组织。 [0003] WiMAX Forum was established in April 9, 2001, it is a non-profit organization by the industry-leading new products and communication equipment company jointly established. 该组织不仅要建立一整套基于IEEE802. 16标准等规范,同时还致力于可运营的宽带无线接入系统的研究、需求的分析、应用模式的探索、市场的拓展等一系列大力促进宽带无线接入市场发展的工作。 The organization not only to establish a set based on IEEE802. 16 standard norms, but also committed to research can operate broadband wireless access systems, needs analysis, to explore the application model, market expansion and a series of vigorously promote broadband wireless access the job market. 该组织已经成立了认证工作组(CWG)、技术工作组(TWG)、频谱工作组(RWG)、市场工作组(MWG)、需求工作组(SPWG)、网络工作组(NWG)和应用研究工作组(AWG)。 The organization has established a certification Working Group (CWG), the Technical Working Group (TWG), Spectrum Working Group (RWG), Market Working Group (MWG), demand Working Group (SPWG), Network Working Group (NWG) and applied research group (AWG).

[0004] 网络工作组(Network Working Group, NWG),即制定WiMAX网络规范的工作组,是目前最活跃和最受关注的工作组,该工作组的工作内容主要集中在IEEE802. 16标准以及核心网之外的网络单元、功能实体、消息和协议的制定,对于现有的标准中没有定义和涉及到的部分进行明确的定义和描述。 [0004] Network Working Group (Network Working Group, NWG), the working group that is developing WiMAX network specification, is the most active and the most talked about of the working group, the content of the work of the Working Group focused on IEEE802. 16 standard and core network element other than the network functional entities, protocols and message formulation, clearly defined and described with respect to the existing standard is not defined and is partially involved. 该工作组的目标是:建立端到端的网络参考模型,满足WiMAX论坛运营商工作组提出的需求;制定端到端的网络规范,定义网络中的功能实体和网络接口;为WiMAX系统的互通认证奠定基础。 The objective of the working group are: to establish end-to-network reference model to meet the needs of the WiMAX Forum Operator Working Group; development of end to end network specification, functional entities and network interface defined network; lay the foundation for WiMAX interoperability certification system basis.

[0005] 网络工作组对网络规范的制定分成三个阶段,其中,第二阶段的工作重点为网络架构参考模型的定义、参考点的描述、网络功能的定义以及协议和流程的说明。 [0005] Network Working Group to develop network specification into three phases, wherein the second stage is focus-defined network architecture reference model, described in the reference point, the definition of network and protocol functions, and description of the processes.

[0006] 目前的WiMAX网络参考模型如图1所示,WiMAX网络包括用户站(Subscribe Station, SS)/移动台(Mobile Subscribe Station, MS)、接入服务网络(Access Service Network, ASN)及连接服务网络(Connectivity ServiceNetwork, CSN),其中,MS 通过空中接口参考点l(Reference Point 1,Rl)接入ASN,ASN与其他ASN之间通过R4接口连接, ASN与CSN之间通过R3接口连接,MS与CSN之间的接口为逻辑接口R2,通过Rl接口和R3接口作为实际的物理承载。 [0006] Current WiMAX network reference model shown in Figure 1, WiMAX network including a subscriber station (Subscribe Station, SS) / mobile stations (Mobile Subscribe Station, MS), an access service network (Access Service Network, ASN) and a connection service network (Connectivity ServiceNetwork, CSN), wherein, with reference to the MS over the air interface access point l (reference point 1, Rl) ASN, between the ASN and the ASN other via an R4 interface between the ASN and the CSN via an R3 interface, the interface between the MS and the CSN for the logical interface R2, Rl through R3 interface as the interface and the actual physical carrier. ASN用于提供无线接入控制,CSN用于提供互联网协议anternet Protocol, IP)连接管理。 For providing a radio access control ASN, CSN for providing Internet Protocol anternet Protocol, IP) connection management.

[0007] 当移动台在漫游场景下时,对于WiMAX移动台,通过逻辑接口R2分别与拜访网络服务运营商(Visited Network Service Provider, Visited NSP 或V-NSP)和归属网络服务运营商(Home Network Service Provider,Home NSP或H-NSP)通信,拜访网络服务运营商和归属网络服务运营商之间通过R5接口连接。 [0007] When the mobile station at a roaming scenario, for the WiMAX mobile station via a logical interface R2 respectively visited network service provider (Visited Network Service Provider, Visited NSP or V-NSP) and the home network service provider (Home Network service provider, Home NSP or H-NSP) communication between the visited network and the home network service provider service operator via R5 connected to the interface. 网络为用户提供漫游服务,用户移动到异地后仍然可以享受WiMAX服务。 Network to provide users with roaming services, the user moves to different places can still enjoy the WiMAX services.

[0008] 图2为接入服务网络的组网示意图。 [0008] FIG. 2 is a schematic diagram of networking of the access service network. 如图2所示,接入服务网络包括基站(Base Station, BS)和接入服务网络网关(ASN Gateway, ASN GW),其中,BS之间的接口为R8接口,BS与ASN GW之间的接口为R6接口,ASNGW可以为目标网关(Target Gateway,TGW)、服务网关(Service Gateway, SGff)以及锚点网关(Anchor Gateway, AGW),各ASN GW 之间的接口为R4接口,ASN GW与CSN之间的接口为R3接口。 2, the access service network including a base station (Base Station, BS) and an access service network gateway (ASN Gateway, ASN GW), wherein the interface is an R8 interface between the BS, between the BS and the ASN GW R6 interface interface, ASNGW may target gateway (target gateway, TGW), a serving gateway (service gateway, SGff) and the anchor gateway (anchor gateway, AGW), an interface between the ASN GW is an R4 interface, ASN GW and CSN is the interface between the interface R3.

[0009] 在图1所示的网络模型中,MIP用于实现跨ASN的终端移动性管理,而根据具体的实现不同,WiMAX论坛定义了两种可选的MIP方案:一种是代理模式移动IP (Proxy Mobile IP, PMIP),另一种是客户端模式移动IP (ClientMobile IP, CMIP)。 [0009] In the network model shown in FIG. 1, a cross-ASN MIP mobility management of the terminal, and depending on the particular implementation, WiMAX Forum defines two MIP alternative embodiment: one is the mobile proxy mode IP (Proxy mobile IP, PMIP), the other is the client mode mobile IP (ClientMobile IP, CMIP).

[0010] 在PMIP方案中,MIP客户端位于ASN网络,其代表MS来执行R3移动性管理,所有的MIP控制都在网络侧完成,其过程对MS透明。 [0010] In the embodiment PMIP, MIP client is located in ASN network, which represents R3 MS performs mobility management, all of the MIP control is done in the network side, the process is transparent to the MS. MS通过动态主机配置协议(Dynamic Host Configuration Protocol,DHCP)从网络获得自己的IP地址,并通过获得的IP地址和网络进行通讯。 MS obtains its own IP address through Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) from the network, and communications by obtaining an IP address and network. ASN需要代替MS完成MIP的注册以及数据的转交。 ASN need alternative MS handover completion of MIP registration, and data.

[0011] 在CMIP方案中,MIP客户端位于MS中,执行完整的MIP客户端的功能。 [0011] In CMIP embodiment, the MIP client is located in the MS, performing a full MIP client function. MS需要完全知晓MIP的过程细节,包括MIP的注册和注册刷新。 MS need to know exactly the details of MIP process, including the MIP registration and registration refresh.

[0012] 目前,在基于上述两种MIP方案中,从CSN到MS的数据传递通道示意图分别如图3及图4所示。 [0012] Currently, both MIP based solution, data is transmitted from the CSN to MS channels are schematic shown in FIGS. 3 and 4.

[0013] 在图3中,PMIP客户端在家乡代理(Home Agent,HA)中注册的转交地址为核心网地址(Core of Address,CoA),即为外部代理(Foreign Agent, FA)的地址,MS的家乡地址为附着点地址(Point of Attachment,PoA),即MS通过DHCP或其它途径获得的地址。 [0013] In FIG. 3, PMIP client home agent (Home Agent, HA) registered care-of address for the core network address (Core of Address, CoA), is the foreign agent (Foreign Agent, FA) address, MS home address for the point of attachment address (point of attachment, PoA), i.e. the MS through the DHCP address or other means available. 其中, DP 1¾提供R6接口数据通道功能,802. 16e CS表示802. 16e协议的汇聚子层,L2表示层2, Payload 表示负载,MIP tunnel 表示MIP 隧道,Tunnel ID 表示隧道标识,Intra-ASN Data Path表示ASN内部数据通道。 Wherein, DP 1¾ R6 interface provides a data path function, 802. 16e CS represents the convergence sublayer 802. 16e protocol, L2 represents a layer 2, Payload represents the load, MIP tunnel represents a MIP tunnel, Tunnel ID represents a tunnel identification, Intra-ASN Data path represents ASN internal data paths.

[0014] 在图4中,CMIP客户端在HA中注册的转交地址为CoA,即为FA的地址,MS的家乡地址为HoA,即MS通过MIP注册或其它途径获得的地址。 [0014] In FIG. 4, CMIP client registered as a care-of address in the HA CoA, the address (FA), MS home address HoA, i.e. MIP registration by the MS or the address obtained by other routes.

[0015] 在上述两种模式下,MS之间互通时的数据传递途径如图5所示,其中,802. 16e Function提供802. 16e协议所规定的功能,数据通道功能单元(DP Fn)提供R6接口数据通道功能,Router为路由器,Server为服务器。 [0015] In both modes, the data exchange between the MS pathway 5, wherein, 802. 16e Function provides predetermined functions 802. 16e protocols, data path functional unit (DP Fn) provided R6 interface data channel function, router router, server for the server. 在图5中,MS 1和MS2的寻址都是利用其HoA进行的,而在WiMAX网络中,MS具有永远在其外乡链路上的特性,所以,所有发送到MS 的业务流都需要经HA转发。 In FIG. 5, MS 1 and MS2 are addressing the HoA of its use, and in a WiMAX network, the MS has always its other place link characteristics, therefore, transmitted to the MS all the traffic stream needs by HA forwards. 这种情况下,MS间的业务流无论在哪个方向上都必须通过HA 进行转发,这势必会增加R3隧道及HA的负载。 In this case, the business flow between the MS regardless of in which direction must be forwarded by the HA, which is bound to increase the load R3 tunnel and HA.

[0016] 在实际应用中,使用MIP的其他类型的无线网络也存在同样的问题。 [0016] In practice, the MIP other types of wireless networks may also have the same problem. 如果将WiMAX 网络中的ASN对应于其他类型无线网络的接入网,将WiMAX网络中的CSN对应于其他类型无线网络的核心网,则在其他类型的无线网络中,终端(对应于WiMAX网络中的MS)之间的业务流一定要经过无线网络中的核心网进行转发,所以,在其他类型的无线网络中,终端之间的业务流同样会增加核心网的负载。 If the WiMAX network ASN correspond to other types of wireless networks access networks, the WiMAX network to a core network CSN corresponding to other types of wireless networks, then other types of wireless networks, the terminal (corresponding to a WiMAX network traffic flows between the MS) via a wireless network must be in the core network forwards, so that in other types of wireless networks, traffic flow between the terminals will also increase the load on core network.

发明内容 SUMMARY

[0017] 本发明实施例要解决的技术问题在于提供一种基于MIP的无线网络中的终端之间互通的方法、基于MIP的无线网络中的接入网、WiMAX网络架构的ASN、基于MIP的无线网络及WiMAX网络架构,用以在终端之间互通时,减轻核心网的负载。 [0017] The technical problem to be solved by embodiments of the present invention to provide a method of interworking between the MIP terminal in a wireless network based on a wireless network based on the MIP access network, WiMAX network architecture of the ASN, MIP-based wireless network and a WiMAX network architecture for interworking between terminals while reducing the load of the core network.

[0018] 为解决上述技术问题,本发明实施例提供一种基于MIP的无线网络中的终端之间互通的方法,包括:源终端对应的接入网接收源终端发出的业务流;源终端对应的接入网确定目标终端对应的接入网,或者确定目标终端对应的核心网及接入网;如果所述业务流的目标终端与所述源终端同在一个核心网下但对应不同的接入网,则源终端对应的接入网将所述业务流直接发到目标终端对应的接入网;目标终端对应的接入网将所述业务流发到目标终端;其中,至少按照下述一种方式确定目标终端对应的接入网:查询预先保存的业务流标识和目标终端地址与其对应的接入网之间的映射关系,以确定目标终端对应的接入网;向源终端对应的接入网和/或核心网查询目标终端对应的接入网;向同一核心网下的所有接入网查询目标终端对应的接入网。 [0018] To solve the above problems, embodiments provide a method of interworking between the MIP terminal in a wireless network based on the present invention, comprising: a source terminal service flow corresponding to the source access network receiving terminal is given; the source terminal corresponding to determining a target access network the access network corresponding to the terminal, determining a target terminal or corresponding core network and access network; if the target terminal and the traffic flow at the source terminal with a core network but different respective contact network, the terminal corresponding to the source access network the traffic flow directly to the corresponding access network of the target terminal; a terminal corresponding to a target access network to send the service flow to the target terminal; wherein the at least according to the following One way to determine the target access network corresponding to the terminal: query mapping relationship between service flow identifier and the destination terminal address stored in advance corresponding access network, to determine the target access network corresponding to the terminal; corresponds to the source terminal of access network and / or the core network corresponding to query the target terminal access network; all under the same to the core network corresponding to the terminal access network query target access network.

[0019] 本发明实施例还提供一种WiMAX网络架构的接入服务网络ASN,包括R6接口数据通道功能单元及外部代理FA单元,还包括:业务流重定向单元,设置于R6接口数据通道功能单元及FA单元之间,用于转发两个MS之间的业务流,其中,如果两个MS同在一个连接服务网络CSN下但对应不同的ASN,并且所述业务流重定向单元对应源MS,则所述业务流重定向单元将源MS发出的业务流直接转发到目标MS对应的业务流重定向单元;如果两个MS同在一个CSN下但对应不同的ASN,并且所述业务流重定向单元对应目标MS,则所述业务流重定向单元直接从源MS对应的业务流重定向单元接收业务流;源MS发出的业务流到达源MS 对应的业务流重定向单元时,源MS对应的业务流重定向单元解析业务流的目标IP地址,源MS对应的业务流重定向单元按照下述至少一种方式解析目标IP地址:查询预先保 [0019] Embodiments of the present invention further provides an access service network ASN in WiMAX network architecture, including a data channel R6 interface unit and an FA functional unit further comprising: a traffic flow redirection means, disposed in the data path function R6 interface between the unit and the FA unit, for forwarding the traffic flow between two MS, wherein the MS if the two at the same connectivity service network CSN but a different corresponding to the ASN, and the traffic flow redirection unit corresponding to the source MS , the traffic flow is a traffic flow redirection unit MS emitted from the source are forwarded directly to the target MS service flow corresponding redirection unit; however, the service flow to the ASN corresponding to different weight, and if the same two MS in a CSN alignment unit corresponding target MS, if the redirection unit traffic flow redirection unit receives the traffic flow directly from the source corresponding to the MS service flow; a traffic flow to the source emitted from the source MS corresponding to the MS service flow redirection unit, corresponding to the MS source traffic flow redirecting means resolve the destination IP address of the traffic flow, traffic flow corresponding to the source MS resolve the destination IP address of the redirecting means in accordance with at least one of the following ways: query advance Paul 存的业务流标识和目标MS的地址与其对应的ASN之间的映射关系;向源MS对应的CSN查询关于业务流的目的地信息•'从源MS对应的ASN接收的其他ASN同步过来的MS信息中查询关于业务流的目的地信息;向同一CSN下的所有ASN查询业务流的目的地信息。 A mapping relationship between the address stored traffic flow identifier of the target MS and the ASN corresponding thereto; corresponding to the source MS the CSN query destination information about traffic flow • 'other ASN ASN received from a corresponding synchronized from the source MS MS information query the destination information on traffic flow; all at the same CSN destination information ASN query traffic flow.

[0020] 本发明实施例还提供一种基于MIP的无线网络,包括终端、接入网及核心网,所述接入网用于转发两个终端之间的业务流,其中,如果两个终端同在一个核心网下但对应不同的接入网,并且所述接入网对应源终端,则所述接入网将源终端发出的业务流直接转发到目标终端对应的接入网;如果两个终端同在一个核心网下但对应不同的接入网,并且所述接入网对应目标终端,则所述接入网直接从源终端对应的接入网接收业务流;源终端发出的业务流到达源终端对应的接入网时,源终端对应的接入网的业务流重定向单元按照下述至少一种方式解析业务流的目标IP地址:查询预先保存的业务流标识和目标终端地址与其对应的接入网之间的映射关系;向源终端对应的接入网和/或核心网查询目标终端对应的接入网;向同一核心网下的所有接入网查询目标终端 [0020] Embodiments of the present invention further provides a MIP-based wireless network, comprising a terminal, an access network and a core network, the access network for forwarding the traffic flow between two terminals, wherein if the two terminal in a core network the same but correspond to different access network and the access network corresponding to the source terminal, then the access network forward the traffic streams sent by the source terminal corresponding to the terminal directly to the target access network; if the two terminals at the same core network, but a different corresponding access network and the access network corresponding to the destination terminal, then the access network corresponding to the access network directly from the source terminal receives the service stream; source traffic sent from the terminal when the flow reaches the source terminal corresponding to the access network, the access network corresponding to the source terminal of the traffic flow redirecting means resolve the destination IP address of the traffic flow at least in the following ways: query service flow identifier and the address of the destination terminal stored in advance mapping between the corresponding access network; terminal corresponding to the source access network and / or the core network corresponding to query the target terminal access network; all under the same to the core network access network query the target terminal 对应的接入网。 The corresponding access network.

[0021] 本发明实施例还提供一种WiMAX网络,包括MS、接入服务网络ASN及连接服务网络CSN,所述ASN用于转发两个MS之间的业务流,其中,如果两个MS同在一个CSN下但对应不同的ASN,并且所述ASN对应源MS,则所述ASN将源MS发出的业务流直接转发到目标MS对应的ASN ;如果两个MS同在一个CSN下但对应不同的ASN,并且所述ASN对应目标MS,则所述ASN直接从源MS对应的ASN接收业务流;源MS发出的业务流到达源MS对应的ASN的业务流重定向单元时,源MS对应的ASN的业务流重定向单元按照下述至少一种方式解析业务流的目标IP地址:查询预先保存的业务流标识和目标MS的地址与其对应的接入网之间的映射关系;向源MS对应的CSN查询关于业务流的目的地信息;从接收的其他ASN同步过来的MS信息中查询关于业务流的目的地信息;向同一CSN下的所有ASN查询业务流的目的地信息。 [0021] Embodiments of the present invention further provides a WiMAX network, including MS, Access Service Network ASN and the CSN connectivity service network, ASN for forwarding the traffic flow between two MS, wherein, if the same two MS in the CSN but corresponding to a different ASN, the ASN and the MS corresponding to the source, if the source MS the ASN service flow sent directly to the target MS forwards a corresponding ASN; but if corresponding to two different MS in the same under a CSN the ASN, the ASN and the MS corresponding to the target, then the corresponding directly from the source ASN ASN MS receives traffic stream; MS emitted when the service source stream corresponding to the MS to the source ASN service flow redirection unit, corresponding to the MS source ASN traffic flow redirection unit parses the following manner in accordance with at least one IP address of a target traffic flow: query the mapping relationship between service flow identifier and the address of the target MS and its corresponding pre-stored access network; corresponds to the source MS the CSN inquiry destination information on traffic flow; inquiry destination information on traffic flow information from other MS ASN received sync over in; information query to the destination ASN traffic flow all under the same CSN.

[0022] 与现有技术相比,本发明实施例具有以下优点: [0022] Compared with the prior art, embodiments of the present invention has the following advantages:

[0023] 在本发明的实施例中,由于同一个核心网下的不同接入网对应的终端之间的业务流是在接入网之间直接转发的,无需核心网的参与,所以,终端之间的互通可以减轻核心网的负载。 [0023] In an embodiment of the present invention, since the traffic flows between the different access networks corresponding to a core network at the same terminal is forwarded directly between the access network, without the involvement of the core network, so that the terminal interworking between can reduce the load on the core network.

[0024] 在本发明的实施例中,由于同一个核心网下的不同接入网对应的终端之间的业务流是在接入网之间直接转发的,业务流无需再经过核心网转发,所以减少了终端之间的互 [0024] In an embodiment of the present invention, since the traffic flows between the different access networks corresponding to a core network at the same terminal is forwarded directly between the access network, traffic flows rather than through the core network forwarding, interaction is reduced between the terminal

通时延。 Through delay. [0025] 附图说明[0026] 图1为目前的WiMAX网络参考模型图;[0027] 图2为目前的接入服务网络的组网示意图;[0028] 图3为PMIP模式下的CSN到MS的数据传递通道示意图;[0029] 图4为CMIP模式下的CSN到MS的数据传递通道示意图;[0030] 图5为目前的MS之间互通时的数据传递示意图;[0031] 图6为本发明实施例的MS之间互通时的数据传递示意图;[0032] 图7为本发明实施例的ASN的结构示意图;[0033] 图8为本发明实施例的WiMAX网络架构的组网示意图;[0034] 图9为本发明实施例的CDMA网络的结构示意图。 [0025] BRIEF DESCRIPTION [0026] FIG. 1 is a current WiMAX network reference model of FIG.; [0027] FIG. 2 is a networking diagram of the current access service network; [0028] FIG. 3 is a CSN of the MS mode to the PMIP data transfer channel a schematic view; [0029] FIG. 4 is a CSN of the MS data to the CMIP mode channel transmitting a schematic view; [0030] FIG. 5 is a data exchange between the transfer current schematic MS; [0031] FIG 6 is the data exchange between the MS transmitting a schematic view of an embodiment of the invention; [0032] FIG. 7 is a schematic diagram of the structure of an embodiment of the ASN invention; [0033] FIG. 8 WiMAX network diagram network architecture according to an embodiment of the present invention; [ 0034] FIG. 9 is a schematic structure of a CDMA network according to an embodiment of the present invention. [0035] 具体实施方式[0036] 下面我们将结合附图,对本发明的最佳实施方案进行详细描述。 [0035] DETAILED DESCRIPTION [0036] Below we will accompanying drawings, preferred embodiments of the present invention will be described in detail. [0037] 首先对本发明实施例的终端之间互通方法的整体技术方案进行说明。 [0037] The overall aspect of interworking method between terminals embodiment will be described first embodiment of the present invention. 首先需要说 First of all need to say

明的是,本发明实施例的终端之间互通方法可以基于WiMAX网络,也可以基于码分多址接入(CDMA,Code Division Multiple Access)系统、CDMA2000 系统、3GPP 长期演进(LTE, Long Term Evolution)系统、3GPP2 空口演进(AIE,Air Interface Evolution)系统/ 超级移动宽带(UMB,Ultra mobile Broadband)系统以及无线局域网(WLAN,Wireless Local Area Network)等使用MIP的无线网络,其中,在WiMAX网络中,终端为MS。 Clear that the method of interworking between a terminal of the embodiment of the present invention may be based on WiMAX networks, may be code division multiple access (CDMA, Code Division Multiple Access) system, CDMA2000 system based, 3GPP long term evolution (LTE, Long Term Evolution ) system, 3GPP2 air interface evolution (AIE, Air Interface Evolution) system / Ultra mobile broadband (UMB, Ultra mobile broadband) systems and wireless local area network (WLAN, wireless Local Area network) and the like using MIP wireless network, wherein, in a WiMAX network The terminal of MS. 另外,在CDMA 系统中,接入网可以由基站收发信机(BTS,Base Transceiver Station)、基站控制器(BSC, Base Station Controller)和分组数据服务网(PDSN,Packet DataService Network)组成,核心网可以由AAA服务器(AAA krver)、HA等组成;在LTE系统中,接入网可以由演进的基站(eNB,eNodeB)、接入网关(aGW)组成,核心网可以由策略计费控制器服务器(PCC Server, Policy and ChargingController Server)、HA 等组成。 Further, in the CDMA system, an access network may consist of a base transceiver station (BTS, Base Transceiver Station), base station controller (BSC, Base Station Controller) and a packet data service network (PDSN, Packet DataService Network) composed of a core network AAA server may (AAA krver), HA and other components; in the LTE system, an access network may consist of a base station (eNB, eNodeB) evolved, the access gateway (the aGW) composed of a core network server can be a policy charging controller (PCC Server, Policy and ChargingController Server), HA and other components.

[0038] 本发明的方法实施例包括:源终端对应的接入网接收源终端发出的业务流;如果所述业务流的目标终端与所述源终端同在一个核心网下但对应不同的接入网,则源终端对应的接入网将所述业务流直接发到目标终端对应的接入网;目标终端对应的接入网将所述业务流发到目标终端。 Embodiment includes a method [0038] according to the present invention: the source terminal service flow corresponding to the source access network receiving terminal is given; the destination terminal if the traffic flow with the source terminal with a core network but at different respective contact network, the terminal corresponding to the source access network the traffic flow directly to the corresponding access network of the target terminal; a terminal corresponding to a target access network to send the service flow to the target terminal.

[0039] 在上述方法的实施例中,如果所述业务流的目标终端与所述源终端同在一个核心网下且对应相同的接入网,则源终端对应的接入网可以将所述业务流直接发到目标终端。 [0039] In an embodiment of the above method, the target terminal if the traffic flow at the source terminal with the access network and the same corresponding to the next core network, the source terminal corresponding to the access network may be traffic flow directly to the target terminal. [0040] 在上述方法的实施例中,如果所述业务流的目标终端与所述源终端不在同一个核心网下,则源终端对应的接入网可以将所述业务流发到源终端对应的核心网,源终端对应的核心网将所述业务流发到目标终端对应的核心网,目标终端对应的核心网将所述业务流发到目标终端对应的接入网,目标终端对应的接入网将所述业务流发到目标终端。 [0040] In an embodiment of the above method, the traffic flow if the target terminal and the source terminal is not on the same core network, the source terminal corresponding to the access network may send the service flow to the corresponding source terminal core network, the core network corresponding to the source terminal to the service flow sent to the destination terminal corresponding to the core network, the core network corresponding to the target terminal to the service flow sent to the corresponding access network of the target terminal, the target terminal corresponding to the connection the network traffic flows sent to the target terminal.

[0041] 在上述方法的实施例中,源终端对应的接入网接收源终端发出的业务流之后且将所述业务流发出之前还可以包括:确定目标终端对应的接入网,或者确定目标终端对应的核心网及接入网。 Before [0041] In an embodiment of the above method and the traffic flow after issuing the service source terminal corresponding to the source access network receives the stream sent from the terminal, may further comprise: determining a target access network corresponding to the terminal, determining a target or core network corresponding to the terminal and access network.

[0042] 可以至少按照下述一种方式确定目标终端对应的接入网:查询预先保存的业务流标识、目标终端地址与其对应的接入网之间的映射关系,以确定目标终端对应的接入网;向源终端对应的接入网和/或核心网查询目标终端对应的接入网;向同一核心网下的所有接入网查询目标终端对应的接入网。 [0042] may be determined in the following way at least the target access network corresponding to the terminal: Query service flow identifier stored in advance, a mapping relationship between the terminal address corresponding to the target access network, to determine the target corresponding to the terminal contact network; terminal corresponding to the source access network and / or the core network corresponding to query the target terminal access network; query to all the target access network the access network corresponding to the terminal under the same core network.

[0043] 可以至少按照下述一种方式确定目标终端对应的核心网:查询预先保存的业务流标识、目标终端地址与其对应的接入网以及对应的核心网之间的映射关系,以确定目标终端对应的核心网;向源终端对应的接入网和/或核心网查询目标终端对应的核心网。 [0043] may be determined in the following way at least certain of the core network corresponding to the terminal: Query service flow identifier stored in advance, a mapping relationship between the terminal address corresponding to the target access network and corresponding core network, to determine the target core network corresponding to the terminal; terminal corresponding to the source access network and / or the core network corresponding to the terminal queries the target core network.

[0044] 具体的,对于WiMAX网络来说,在MS与对应的CSN之间可以设置互联网协议业务流重定向单元;同一个CSN下的MS之间互通的业务流可以经由业务流重定向单元转发。 [0044] Specifically, for a WiMAX network, in between the MS and the CSN may be provided corresponding to an Internet Protocol traffic flow redirection unit; interworking between a CSN of MS under the same traffic flows may be forwarded via the traffic flow redirection unit . 其中,业务流重定向单元可以设置在ASN中。 Wherein the traffic flow redirection means may be provided in the ASN.

[0045] 对于同一个CSN下的同一个ASN的MS之间互通的业务流经由MS对应的业务流重定向单元转发,即,MS发出业务流,到达业务流重定向单元时,业务流重定向单元将业务流转发给目标MS。 [0045] with respect to the interworking between a MS under the same ASN CSN traffic flows forwarded by the MS service flow corresponding redirection unit, i.e., MS sends a service stream arriving traffic flow redirection means redirects traffic flow stream to the target service unit MS. 这种情况下,业务流经过一个业务流重定向单元转发,不需经过CSN 转发。 In this case, traffic flows through a forward service flow redirection unit, without forwarding through the CSN. 图6所示的业务流61即可示意这种转发流程。 61 shown in FIG. 6 traffic flow to a schematic flow of this forwarding. 其中,802. 16e功能单元(802. 16e Function)提供802. 16e协议所规定的功能,数据通道功能单元提供基站BS与接入服务网络网关ASNGW之间的R6接口数据通道功能。 Wherein, 802. 16e functional unit (802. 16e Function) 802. 16e protocol provides a predetermined function, a data path functional unit data path function provides an R6 interface between the base station BS and ASNGW access service network gateway.

[0046] 对于同一个CSN下的不同ASN下的MS之间互通的业务流也经由业务流重定向单元转发,即,MS发出业务流,到达发出业务流的MS对应的业务流重定向单元时,发出业务流的MS对应的业务流重定向单元将业务流转发给目标MS对应的业务流重定向单元,目标MS 对应的业务流重定向单元再将业务流转发给目标MS。 When [0046] the MS to the interworking between the different under the same ASN CSN a service flow is also transferred via the traffic flow redirection unit, i.e., MS sends a service stream arriving traffic flows sent MS service flow corresponding redirection unit , issued MS service flow corresponding to the traffic redirection unit traffic flow stream to the target MS service flow corresponding redirection unit, corresponding to the target MS a service flow redirecting means and then sent to the target MS service flow. 这种情况下,业务流需要在两个ASN 之间转发,不需经过CSN转发。 In this case, the traffic flow between two ASN requires forwarding, without forwarding through the CSN. 图6所示的业务流62即可示意这种转发流程。 Traffic stream 62 shown in FIG. 6 a schematic to this forwarding process.

[0047] 对于不同CSN下的MS之间互通的业务流或其他业务流也可经由业务流重定向单元转发,即,MS发出业务流,到达发出业务流的MS对应的业务流重定向单元时,发出业务流的MS对应的业务流重定向单元将业务流转发给发出业务流的MS对应的CSN,如果业务流的目的地为其他CSN下的MS,则发出业务流的MS对应的CSN将业务流转发到目标MS对应的CSN,目标MS对应的CSN再将业务流转发到目标MS ;如果业务流的目的地为其他网络节点, 例如服务器,则发出业务流的MS对应的CSN将业务流转发到其他网络节点。 When [0047] the service flow may be forwarded via the redirection unit for interworking between different MS in the CSN or another service stream traffic flow, i.e., flow MS sends a service arriving at issue MS service flow corresponding redirection unit traffic flow , MS service flow corresponding redirection unit sends a service flow sent traffic stream to the MS a traffic flow corresponding to the CSN, if the destination for the traffic flow in other CSN MS, the MS sent traffic flows corresponding to the CSN service stream to the corresponding CSN target MS, the target MS service flow corresponding to the CSN and then sent to the target MS; if the destination of the traffic flow to other network nodes, such as a server, issue the MS service flow corresponding to the traffic flow CSN sent to other network nodes. 这种情况下, 业务流需要经过一个CSN或在多个CSN之间转发。 In this case, you need to go through a traffic flow between the plurality of forward or CSN CSN. 图6所示的业务流63即可示意这种转发流程。 63 shown in FIG. 6 traffic flow to a schematic flow of this forwarding.

[0048] MS发出的业务流到达业务流重定向单元时,业务流重定向单元需要解析业务流的目标IP地址,即判断业务流的目的地是否为MS、目标MS是否与发出业务流的MS在同一个CSN下和/或同一个ASN下等。 [0048] MS service flow sent by the arrival redirection unit traffic flow, traffic flow redirection unit needs to resolve the IP address of the target traffic flow, i.e., determines whether the destination MS service flow, if the target MS and the MS service flow sent in the same / or under a same ASN and CSN and the like. 如果目标IP地址为同一个CSN下的同一个ASN的MS的HoA,则业务流重定向单元将业务流转发到目标MS ;如果目标IP地址为同一个CSN下的不同ASN对应的MS的HoA,则业务流重定向单元将业务流转发到目标MS对应的ASN,目标MS 对应的ASN再将业务流转发到目标MS ;如果目标IP地址为不同CSN下的MS的HoA,则业务流重定向单元将业务流转发到发出业务流的MS对应的CSN,发出业务流的MS对应的CSN将业务流发送到目标MS对应的CSN,目标MS对应的CSN再将业务流转发到目标MS。 If the destination IP address is the same HoA ASN of an MS in the same CSN, the traffic redirection unit traffic flow stream to the target MS; If the destination IP address of the MS under the same HoA CSN corresponding to different ASN, the traffic redirection unit traffic flow stream to the corresponding ASN target MS, the target MS and then the corresponding service flow sent to the ASN target MS; if the destination IP address is the HoA of the MS at different CSN, the redirection unit traffic flow the service stream to issue a traffic flow corresponding to MS CSN, a service flow sent MS sends a corresponding service flow CSN ​​to CSN corresponding target MS, the target MS service flow corresponding to the CSN and then sent to the target MS.

[0049] 业务流重定向单元解析目标IP地址的方式有很多。 There are many ways [0049] The service stream redirection unit resolve the destination IP address.

[0050] 例如,业务流重定向单元设置一个转发表,转发表中存储已经建立的业务流标识、 目标MS的HoA与目标MS对应的ASN的标识之间的映射关系,映射关系可以为如下形式: [0050] For example, a traffic flow redirecting means disposed forwarding, forwarding the stored mapping relationship between the already established service flow identifier, the target MS to the target MS's HoA corresponding ASN identity mapping relationship may be of the form :

[0051] (SFID, D-HoA) => (ASN ID, R4Tunnel), [0051] (SFID, D-HoA) => (ASN ID, R4Tunnel),

[0052] 其中,SFID表示业务流标识,D-HoA表示目标MS的HoA,ASN ID表示目标MS对应的ASN的标识,R4Tunnel表示ASN之间用于转发MS之间互通的业务流的隧道。 [0052] wherein, SFID represents a service flow identifier, D-HoA denotes the target MS HoA, ASN ID corresponding to the MS indicates the target ASN identification, R4Tunnel represents a tunnel between the MS interworking forwarding traffic flow between the ASN.

[0053] 业务流重定向单元接收到对应的MS发出的业务流后,首先查询转发表中是否存在接收的业务流的标识、业务流的目标IP地址与ASN之间的映射关系,如果存在,说明业务流的目的地为MS。 After the [0053] service flow redirection unit MS receives the service stream emitted corresponding to first turn queries whether there is a mapping relationship between the IP address and the target ASN received service flow identifier, service flow table, if present, DESCRIPTION destination service flow MS.

[0054] 如果映射关系中的ASN ID为发出业务流的MS对应的ASN ID,业务流重定向单元将业务流直接转发给目标MS,这种情况下,R4Timnel的值为任意值,不具有实际意义。 [0054] If the mapping is ASN ID ASN ID MS to issue a corresponding traffic flow, traffic flow redirection unit forwards the MS service flow directly to the target, in this case, R4Timnel value is an arbitrary value, no practical significance. 如果映射关系中的ASN ID为与发出业务流的MS对应的ASN ID不同的ASN ID,业务流重定向单元将业务流转发给目标MS对应的ASN,目标MS对应的ASN再将业务流转发给目标MS,这种情况下,R4Tunnel的值表示两个ASN之间用于转发MS之间互通的业务流的隧道。 If the mapping relationship ASN emit different MS ID traffic flows corresponding ASN ID ASN ID with the service flow traffic stream to the redirection unit corresponding to the target ASN MS, the target MS and then the corresponding service stream to the ASN target MS, in this case, represents the value of the tunnel R4Tunnel interworking between the MS for forwarding the traffic flow between two ASN. 如果映射关系中的ASN ID为与发出业务流的MS不在同一个CSN下的ASN ID,业务流重定向单元将业务流转发给发出业务流的MS对应的CSN,CSN再将业务流转发给目标MS对应的CSN, 目标MS对应的CSN再将业务流通过目标MS对应的ASN将业务流转发给目标MS,这种情况下,ASN ID及R4Tunnel取值缺省路由。 If the mapping relationship ASN ID issued ASN ID MS service flow is not the same as with the CSN, a service flow redirection unit traffic flow of traffic flows sent to MS emitted corresponding to CSN, CSN then stream to the business objectives MS corresponding to the CSN, CSN then the corresponding target MS service flow corresponding to the MS through the target ASN traffic stream to the target MS, in this case, ASN ID R4Tunnel value and the default route.

[0055] 如果转发表中不存在接收的业务流的标识、业务流的目标IP地址与ASN之间的映射关系,业务流重定向单元可以采取如下三种方式获取关于业务流的目的地信息和/或目的地对应的ASN信息: [0055] If the mapping between the identified destination IP address of the received traffic flow, traffic flow and the ASN forwarding table does not exist, traffic flow redirection unit may take the following three ways to acquire destination information about traffic flow, and / or destination information corresponding ASN:

[0056] 1.业务流重定向单元向发出业务流的MS对应的CSN查询关于业务流的目的地信息,发出业务流的MS对应的CSN将查询结果返回给业务流重定向单元,如果目的地为MS,发出业务流的MS对应的CSN会返回目标MS对应的ASN信息,例如ASN ID等; [0056] 1. Operational flow redirection means to the MS sends a service flow corresponding to the destination information about the CSN query traffic flow, traffic flow emitted MS CSN corresponding to the query results are returned to the traffic flow redirection unit, if the destination for the MS, the MS sends a service flow corresponding to the ASN CSN returns information corresponding to the target MS, e.g. ASN ID and the like;

[0057] 2.业务流重定向单元所在的ASN可以接收其他ASN同步过来的MS信息,业务流重定向单元可以从这些信息中查询关于业务流的目的地信息,例如,某个ASN接入了一个MS, 这个ASN可以将MS的信息同步到发出业务流的MS对应的ASN,发出业务流的MS对应的ASN 通过这种方式可以收集多个MS信息; [0057] ASN 2. where traffic flow redirection unit may receive other information ASN synchronized from the MS service flow redirection unit may query information on a destination information from the traffic flow, for example, an access to the ASN a MS, the ASN information may be sent to the MS of the MS synchronize traffic flow corresponding ASN, MS information sent traffic flows corresponding to a plurality of ASN MS can be collected in this way;

[0058] 3.业务流重定向单元所在的ASN向同一个CSN下的所有ASN发出查询请求,询问业务流的目的地信息,例如,业务流重定向单元所在的ASN可以向所有的同在一个CSN下的ASN询问目标IP地址对应的MS在哪个ASN下及目标MS的信息。 [0058] 3. The service stream redirection unit is located at the same ASN to a CSN all ASN send a query asking the destination traffic flow information, e.g., traffic flow redirection ASN unit may be located in a same to all CSN in the inquiry target ASN IP address information corresponding to the MS which the ASN and the target MS.

[0059] 业务流重定向单元在获得目标MS信息和/或目标MS对应的ASN信息后,建立业务流标识、目标MS的HoA与目标MS对应的ASN的标识之间的映射关系,业务流重定向单元对于后续相同的MS发出的目标IP地址相同的业务流,可以参照这个映射关系进行转发。 [0059] After the traffic flow redirection unit MS to obtain the target information and / or the target ASN information corresponding to the MS, establishing a service flow identifier, the mapping relationship between the HoA of the target MS to the target MS identifier corresponding ASN, heavy traffic flow alignment unit for the same destination IP address of the MS subsequent emitted same traffic flow can be forwarded with reference to the mapping relationship. [0060] 如果业务流重定向单元得知业务流的目的地为非MS,则ASN ID及R4Turmel取值缺省路由,业务流重定向单元将业务流转发到发出业务流的MS对应的CSN,由CSN将业务流转发出去。 [0060] If the destination of the traffic flow redirection unit that traffic flow is a non-MS, the ASN ID R4Turmel value and the default route, the traffic flow redirection unit sent to the service flow corresponding to the MS emitted CSN traffic flow, CSN will be sent out by the business flow.

[0061] 下面是本发明提供的一个具体实施例。 [0061] The following is a specific embodiment of the present invention provides embodiments.

[0062] 请再参照图6,假设移动台(MS) 1及移动台(MS) 2的IP地址分别为10. 0. 0. 1和10. 0. 0. 2,移动台1从接入服务网络(ASN) 1接入网络,移动台2从接入服务网络(ASN) 2接入网络,接入服务网络1和接入服务网络2同属于一个连接服务网络(CSN)。 [0062] Referring again to FIG. 6, assume that the mobile station (the MS) and a mobile station (MS) IP address, respectively 2 and 10. 1 10. 0. 0. 0. 0. 2, access from the mobile station 1 is service network (the ASN) an access network, the mobile station 2 from the access service network (the ASN) 2 access network, an access service network and an access service network 2 belong to a connectivity service network (CSN). 在某一时刻, 移动台1需要和移动台2进行MSN及时通讯业务,当移动台1的IP数据包通过802. 16e 功能单元(802. 16eFunction)及数据通道功能单元(DP Fn)的承载到达业务流重定向单元(PacketRedirector)时,业务流重定向单元将对该IP数据包的目标地址进行解析。 At some point, the mobile station 1 and the mobile station 2 needs MSN instant messaging service, IP packets when the mobile station 1 is carried by a functional unit 802. 16e (802. 16eFunction) and the functional unit data path (DP Fn) arrives when the traffic flow redirection unit (PacketRedirector), traffic flow redirection unit parses the destination address of the IP packet. 如果目标地址是接入服务网络2下接入的移动台2的地址,且接入服务网络1和接入服务网络2同属于一个连接服务网络,则业务流重定向单元将发起建立接入服务网络1和接入服务网络2之间的R4隧道,用以承载移动台1到移动台2的数据,且应将R4隧道标识为移动台互通类型,以区别于原有的接入服务网络之间的R4隧道。 If the destination address is the address of the second access network access service mobile station 2, and an access service network and an access service network 2 belonging to the same connectivity service network, the traffic flow redirection unit will initiate the establishment of access R4 tunnel between the network 1 and an access service network to carry data to the mobile station 1 of the mobile station 2, and R4 should tunnel identifier the mobile station interworking type, in order to distinguish it from the original access service networks R4 tunnel between. R4隧道建立后,业务流重定向单元将移动台1到移动台2的所有IP数据包重定向到R4隧道上,并在R4隧道上承载。 After R4 tunnel is established, traffic flow redirection means redirects the mobile station 1 to the mobile station 2 all IP packets to the tunnel R4, R4 and carried on the tunnel. 接入服务网络2接收到来自于R4隧道上的IP数据包后,将对IP数据包进行区别于其它类型的R4隧道的处理,将IP数据包经数据通道功能单元及802. 16e功能单元传递到移动台2。 The access service network 2 receives the IP packet from the tunnel R4, IP packet will be distinguished from other types of treatment R4 tunnel, the IP packets via data path functional unit and transfer function unit 802. 16e 2 to the mobile station. 对于移动台2到移动台1方向的IP数据包,处理方式相同。 1 the direction to the mobile station an IP data packet, the mobile station 2 to the same treatment.

[0063] 这里需要说明的是,在WiMAX网络架构下,MS之间互通的方法可以应用在PMIP及CMIP模式下,也可以应用在其他MIP模式下。 [0063] It should be noted that, in the WiMAX network architecture, interworking between the MS method can be applied in a pattern PMIP and CMIP can be applied in other MIP mode.

[0064] 本发明除提供方法实施例外,还提供了基于MIP的无线网络中的接入网的实施例,包括:业务流重定向单元,用于转发两个终端之间的业务流,其中,如果两个终端同在一个核心网下但对应不同的接入网,并且所述业务流重定向单元对应源终端,则所述业务流重定向单元将源终端发出的业务流直接转发到目标终端对应的业务流重定向单元;如果两个终端同在一个核心网下但对应不同的接入网,并且所述业务流重定向单元对应目标终端,则所述业务流重定向单元直接从源终端对应的业务流重定向单元接收业务流。 [0064] In addition the present invention provides a method of embodiment exceptions, are also provided based on the embodiments of the MIP access network in a wireless network, comprising: a traffic flow redirection unit, for forwarding the traffic flow between two terminals, wherein If the same two terminals at a core network, but correspond to different access networks, and the service flow corresponding to the source terminal redirection unit, said redirection unit traffic flow directly forward traffic source stream sent from the terminal to the target terminal corresponding service flow redirection unit; if the same two terminals at a core network, but correspond to different access networks, and the service flow corresponding to the target terminal redirection unit, said redirection unit traffic flow directly from the source terminal corresponding service flow redirection unit receives the traffic flow.

[0065] 在上述接入网的实施例中,如果所述业务流重定向单元同时对应所述两个终端, 则所述业务流重定向单元可以在接收到源终端发出的业务流后,直接将所述业务流转发到目标终端。 [0065] In the embodiment of the access network, if the redirection unit traffic flow corresponding to the two terminals simultaneously, then the traffic flow redirection unit may, after receiving the service flow sent by the source terminal, directly the traffic stream to the destination terminal.

[0066] 下面以WiMAX网络为例进行说明。 [0066] In a WiMAX network following example. 图7为基于WiMAX网络架构的ASN的结构示意图。 FIG 7 is a schematic structural diagram of an ASN-based WiMAX network architecture. 如图7所示,ASN701包括业务流重定向单元(PacketRedirector) 7011,802. 16e功能单元(802. 16e Function) 7012、数据通道功能单元(DP Fn) 7013、外部代理单元(FA) 7014、 认证单元(Authenticator) 7015 及MIP 客户端(MIP Client) 7016,802. 16e 功能单元7012 提供802. 16e协议所规定的功能,数据通道功能单元7013提供基站BS与接入服务网络网关ASN GW之间的R6接口数据通道功能,外部代理单元7014提供外部代理功能,认证单元7015提供认证功能,其中,802. 16e功能单元7012设置于数据通道功能单元7013与认证单元7015之间,MIP客户端7016与外部代理单元7014连接。 7, ASN701 including traffic flow redirection unit (PacketRedirector) 7011,802. 16e functional unit (802. 16e Function) 7012, data path functional unit (DP Fn) 7013, foreign agent unit (FA) 7014, certification means (Authenticator) 7015 and a client MIP (MIP client) 7016,802. 16e function unit 802. 16e protocol 7012 to provide predetermined functions, a data path functional unit 7013 provided between the base station BS and access service network gateway ASN GW of R6 interface data path function, a foreign agent provides foreign agent function unit 7014, authentication unit 7015 provides an authentication function, wherein, 802. 16e function unit 7012 is provided between the data path functional unit 7013 and authentication unit 7015, the MIP client 7016 and external agent unit 7014 is connected. 业务流重定向单元7011设置于数据通道功能单元7013与外部代理单元7014之间,用于转发同一个CSN下的MS之间的业务流。 Traffic flow redirection unit 7011 is provided between the data path functional unit 7014 and the external proxy unit 7013, configured to forward the traffic flow between the CSN under the same MS. 业务流重定向单元7011包括:目标IP地址解析模块,用于解析对应MS发出的业 Traffic flow redirection unit 7011 comprises: destination IP address parsing module for parsing a corresponding sector emitted MS

10务流的目标IP地址;映射关系管理模块,用于管理业务流的标识、目标MS的HoA与目标MS 对应的ASN的标识的映射关系。 Destination IP address 10 of the traffic stream; mapping relationship management module, a mapping between the identifier for identifying the target MS to the target MS's HoA managed traffic flows corresponding to the ASN.

[0067] 对于在图7所示的ASN701下MS之间互通的业务流,可以在业务流重定向单元7011进行转发,即,业务流依次经过802. 16e功能单元7012、数据通道功能单元7013的承载到达业务流重定向单元7011,如果业务流重定向单元7011发现业务流的目的地为ASN701下的MS,则将业务流依次经过数据通道功能单元7013、802. 16e功能单元7012的承载,转发到目标MS。 [0067] For the ASN701 MS between FIG. 7 interworking service flow, the Service Flow may be redirected forwarding unit 7011, i.e., service flow sequentially through 802. 16e function unit 7012, a data path function unit 7013 bearer traffic flow reaches the redirection unit 7011, if the traffic flow redirection unit 7011 to find the destination MS service flow under ASN701, then the service flow sequentially through the data path functional unit 7013,802. 16e carrying functional unit 7012 forwards to target MS.

[0068] 对于同一个CSN下的不同ASN下的MS之间互通的业务流,可以在图7所示的ASN701与另一个ASN之间进行转发,具体的说,可以在业务流重定向单元7011与另一个ASN中的业务流重定向单元之间进行转发,即,业务流依次经过802. 16e功能单元7012、数据通道功能单元7013的承载到达业务流重定向单元7011,如果业务流重定向单元7011发现业务流的目的地为同一个CSN下的另一个ASN下的MS,则将业务流转发到目标MS对应的ASN中的业务流重定向单元,目标MS对应的ASN中的业务流重定向单元再将业务流依次经过目标MS对应的ASN中的数据通道功能单元、802. 16e功能单元的承载转发到目标MS。 [0068] For the interworking between the MS under the same ASN CSN different traffic flows may be forwarded between ASN701 shown in FIG. 7 with another ASN, specifically, in the service stream may redirection unit 7011 forwarding between the ASN another service stream and redirection unit, i.e., service flow sequentially through 802. 16e function unit 7012, the data path functional unit 7013 carries the traffic flow reaches the redirection unit 7011, if the traffic flow redirection unit destination 7011 MS found for the traffic flow to another ASN at the CSN same, then the traffic stream to MS service flow corresponding to the target ASN redirection means redirects traffic flow corresponding to the target MS in the ASN unit and then sequentially flows through the traffic data path functional unit corresponding to the target ASN in the MS, 802. 16e carrying the functional units forwarded to the target MS.

[0069] 对于不同CSN下的MS之间互通的业务流或其他业务流,可以经图7所示的业务流重定向单元7011转发出去,S卩,业务流依次经过802. 16e功能单元7012、数据通道功能单元7013的承载到达业务流重定向单元7011,如果业务流重定向单元7011发现业务流的目的地为另一个CSN下的MS或者其他网络节点,业务流重定向单元7011将业务流转发到外部代理单元7014,外部代理单元7014将业务流转发到图7所示的ASN701对应的CSN,ASN701 对应的CSN将业务流转发出去。 [0069] For the interworking between the CSN of MS at different traffic flows or other traffic flow, traffic can be forwarded through the flow redirection unit 7011 shown in FIG. 7, S Jie, service flow sequentially through 802. 16e function unit 7012, data path functional unit 7013 carries the traffic flow reaches the redirection unit 7011, if the traffic flow redirection unit 7011 found destination traffic flow to another MS or CSN at other network nodes, traffic flow redirected traffic stream transfer unit 7011 unit 7014 to the foreign agent, the foreign agent unit 7014 to send the service flow shown in Figure 7 corresponds to CSN ASN701, ASN701 corresponding service flow sent to the CSN.

[0070] MS发出的业务流到达业务流重定向单元7011时,业务流重定向单元7011需要解析业务流的目标IP地址,即判断业务流的目的地是否为MS、目标MS是否与发出业务流的MS在同一个CSN下和/或同一个ASN下等。 [0070] MS service flow reaches emitted redirection unit 7011 when the traffic flow, traffic flow redirection unit 7011 needs to resolve the IP address of the target traffic flow, i.e., determines whether the destination MS service flow, if the target MS sends a service stream the CSN in the same MS and / or the like under the same ASN. 如果目标IP地址为ASN701的MS的HoA,则业务流重定向单元7011将业务流转发到目标MS ;如果目标IP地址为另一个ASN对应的MS 的HoA,则业务流重定向单元7011将业务流转发到目标MS对应的ASN中的业务流重定向单元,目标MS对应的ASN中的业务流重定向单元再将业务流转发到目标MS ;如果目标IP地址为不同CSN下的MS的HoA,则业务流重定向单元7011将业务流转发到ASN701对应的CSN, ASN701对应的CSN将业务流发送到目标MS对应的CSN,目标MS对应的CSN再将业务流转发到目标MS。 If the destination IP address of the MS ASN701 HoA, the traffic flow redirection unit 7011 traffic stream to the target MS; if the destination IP address corresponding to another ASN the MS HoA, the service stream traffic flow redirection unit 7011 sent to the target MS service flow corresponding redirection unit of the ASN, the ASN corresponding target MS a service flow redirecting means and then sent to the service flow target MS; MS if the destination IP address is the HoA of the different CSN, then traffic flow redirection unit 7011 to send the service flow corresponding ASN701 CSN, ASN701 CSN will send the corresponding service flow corresponding to the target MS CSN, then the target MS CSN corresponding traffic stream to the target MS.

[0071] 业务流重定向单元7011解析目标IP地址的方式有很多。 There are many [0071] service flow redirection unit 7011 resolve the destination IP addresses.

[0072] 例如,业务流重定向单元7011设置一个转发表,转发表中存储已经建立的业务流标识、目标MS的HoA与目标MS对应的ASN的标识之间的映射关系,映射关系可以为如下形式: [0072] For example, traffic flow redirection unit 7011 sets a forwarding table, forwarding the stored mapping relationship between service flow identifier has been established, the target MS to the target MS's HoA corresponding ASN identity mapping relationship may be as follows form:

[0073] (SFID, D-HoA) => (ASN ID, R4Tunnel), [0073] (SFID, D-HoA) => (ASN ID, R4Tunnel),

[0074] 其中,SFID表示业务流标识,D-HoA表示目标MS的HoA,ASN ID表示目标MS对应的ASN的标识,R4Tunnel表示ASN之间用于转发MS之间互通的业务流的隧道。 [0074] wherein, SFID represents a service flow identifier, D-HoA denotes the target MS HoA, ASN ID corresponding to the MS indicates the target ASN identification, R4Tunnel represents a tunnel between the MS interworking forwarding traffic flow between the ASN.

[0075] 业务流重定向单元7011接收到经过802. 16e功能单元7012、数据通道功能单元7013的业务流后,首先查询转发表中是否存在接收的业务流的标识、业务流的目标IP地址与ASN之间的映射关系,如果存在,说明业务流的目的地为MS。 Identifying whether the target IP address of the received traffic flow, traffic flows [0075] The service stream 7011 after receiving the redirection unit 802. 16e via functional unit 7012, a data traffic flow channel function unit 7013 and then queries the forwarding table with mapping relationship between the ASN, if present, the destination for the traffic flow MS. [0076] 如果映射关系中的ASN ID为ASN701的ID,业务流重定向单元7011将业务流转发给目标MS,这种情况下,R4Tunnel的值为任意值,不具有实际意义。 [0076] If the mapping relationship of ASN701 ASN ID is ID, traffic flow redirection unit 7011 the MS traffic stream to the target, in this case, R4Tunnel value is an arbitrary value, no practical significance. 如果映射关系中的ASN ID为与ASN701的ID不同的ASN ID,业务流重定向单元7011将业务流转发给目标MS 对应的ASN中的业务流重定向单元,目标MS对应的ASN中的业务流重定向单元再将业务流转发给目标MS,这种情况下,R4Turmel的值表示ASN701与目标MS对应的ASN之间用于转发MS之间互通的业务流的隧道。 If the mapping to the ID of the ASN ASN701 different ASN ID of ID, traffic flow redirection unit 7011 traffic stream to the service flow corresponding to the target MS in the ASN redirection unit, corresponding to the target MS in the ASN service flow then the service stream to the redirection unit target MS, in this case, represents the value of a tunnel for forwarding R4Turmel interworking between ASN701 between the MS and the MS corresponding to the target ASN traffic flow. 如果映射关系中的ASN ID为与ASN701不在同一个CSN 下的ASN ID,业务流重定向单元7011将业务流转发给ASN701对应的CSN,ASN701对应的CSN再将业务流转发给目标MS对应的CSN,目标MS对应的CSN再将业务流通过目标MS对应的ASN中的业务流重定向单元将业务流转发给目标MS,这种情况下,ASN ID及R4Turmel 取值缺省路由。 If a mapping relationship with the ASN ID ASN701 ASN ID CSN are not the same in the service flow traffic redirection unit 7011 corresponding to the stream to the CSN ASN701, ASN701 CSN then the corresponding service stream to the corresponding target MS CSN , then the target MS service flow corresponding to the CSN via an ASN target corresponding to the MS in the traffic redirection unit traffic flow stream to the target MS, in this case, ASN R4Turmel ID value and the default route.

[0077] 如果转发表中不存在接收的业务流的标识、业务流的目标IP地址与ASN之间的映射关系,业务流重定向单元7011可以采取如下三种方式获取关于业务流的目的地信息和/ 或目的地对应的ASN信息: [0077] If the mapping between the identified destination IP address and the ASN received traffic flow, traffic flow forwarding table does not exist, the service flow redirection unit 7011 may take the following three ways to obtain information about the destination of the traffic flow and / or destination information corresponding to the ASN:

[0078] 1.业务流重定向单元7011向ASN701对应的CSN查询关于业务流的目的地信息, ASN701对应的CSN将查询结果返回给业务流重定向单元7011,如果目的地为MS,ASN701对应的CSN会返回目标MS对应的ASN信息,例如ASN ID等; [0078] 1. Operational flow redirection unit 7011 corresponding to the CSN ASN701 destination inquiry about the traffic flow information, ASN701 corresponding CSN returns the query result to the traffic flow redirection unit 7011, if the destination of the corresponding MS, ASN701 of ASN CSN returns information corresponding to the target MS, e.g. ASN ID and the like;

[0079] 2. ASN701可以接收其他ASN同步过来的MS信息,业务流重定向单元7011可以从这些信息中查询关于业务流的目的地信息,例如,某个ASN接入了一个MS,这个ASN可以将MS的信息同步到ASN701,ASN701通过这种方式可以收集多个MS信息; [0079] 2. ASN701 ASN may receive other information synchronized from the MS service flow redirection unit 7011 can query information about the destination from the traffic flow information, for example, an access to an MS ASN, the ASN may MS information synchronized to ASN701, ASN701 MS plurality of information may be collected in this way;

[0080] 3. ASN701向同一个CSN下的所有ASN发出查询请求,询问业务流的目的地信息,例如,ASN701可以向所有的同在一个CSN下的ASN询问目标IP地址对应的MS是在哪个ASN 下及目标MS的信息。 [0080] 3. ASN701 to a CSN same in all ASN send a query asking the destination information of traffic flow, e.g., ASN701 to all be at the same inquiry target ASN in a CSN IP address of the corresponding MS in which ASN information and the target MS.

[0081 ] 业务流重定向单元7011在获得目标MS信息和/或目标MS对应的ASN信息后,建立业务流标识、目标MS的HoA与目标MS对应的ASN的标识之间的映射关系,业务流重定向单元7011对于后续相同的MS发出的目标IP地址相同的业务流,可以参照这个映射关系进行转发。 [0081] The service stream redirection unit 7011 after obtaining the target information, and MS / MS or the target ASN information corresponding to establish a service flow identifier, the mapping relationship between the HoA and the target MS corresponding to the MS to the target ASN identification, traffic flow redirection unit 7011 for the same destination IP address of the MS subsequent emitted same traffic flow can be forwarded with reference to the mapping relationship.

[0082] 如果业务流重定向单元7011得知业务流的目的地为非MS JUASN ID及R4Turmel 取值缺省路由,业务流重定向单元7011将业务流转发到ASN701对应的CSN,由CSN将业务流转发出去。 [0082] If the traffic redirection unit 7011 that the destination stream traffic flow and non-MS JUASN ID value R4Turmel default route, traffic flow redirection unit 7011 to send the service flow corresponding CSN ASN701, by the CSN a service circulation sent out.

[0083] 由于本发明对接入网进行了改进,并且接入网可以应用于无线网络中,所以,本发明还提供了基于MIP的无线网络的实施例,包括终端、接入网及核心网,所述接入网用于转发两个终端之间的业务流,其中,如果两个终端同在一个核心网下但对应不同的接入网, 并且所述接入网对应源终端,则所述接入网将源终端发出的业务流直接转发到目标终端对应的接入网;如果两个终端同在一个核心网下但对应不同的接入网,并且所述接入网对应目标终端,则所述接入网直接从源终端对应的接入网接收业务流。 [0083] Since the mating of the present invention has improved access network and the access network may be applied to a wireless network, therefore, the present invention also provides an embodiment of MIP-based wireless network, comprising a terminal, an access network and a core network , the access network for forwarding the traffic flow between two terminals, wherein if the two terminals in the same core network, but a different corresponding access network and the access network corresponding to the source terminal, then the said access network forward the traffic streams sent by the source terminal corresponding to the terminal directly to the target access network; if the two terminals in the same network, but a core corresponding to the different access network and the access network corresponding to the destination terminal, then the access network corresponding to the access network directly from the source terminal receives the service stream.

[0084] 在上述无线网络的实施例中,如果所述接入网同时对应所述两个终端,则所述接入网可以直接将源终端发出的业务流转发到目标终端。 [0084] In an embodiment the wireless network, if the access network corresponding to the two terminals simultaneously, then the access network may be sent directly to the source terminal traffic stream to the destination terminal.

[0085] 下面以WiMAX网络为例进行说明。 [0085] In a WiMAX network following example. 图8为WiMAX网络架构的组网示意图。 FIG 8 is a network diagram of the WiMAX network architecture. 如图8所示,WiMAX网络架构包括接入服务网络(ASN)801A、移动台(MQ802A、接入服务网络(ASN) 80IB、移动台(MQ802B及连接服务网络(CSN) 803,接入服务网络80IA与移动台802A 之间的接口、接入服务网络801B与移动台802B之间的接口分别为Rl接口,接入服务网络80IA与连接服务网络803之间的接口、接入服务网络80IB与连接服务网络803之间的接口分别为R3接口。需要说明的是,图8只是WiMAX网络架构的一个组网示意图,在实际应用中,WiMAX网络架构可以有多个接入服务网络、移动台及连接服务网络,一个连接服务网络可以接入多个接入服务网络,一个接入服务网络可以接入多个移动台。 As shown, WiMAX network architecture including an access service network (ASN) 801A, the mobile station (MQ802A, Access Service Network (ASN) 80IB, the mobile station (MQ802B and a connectivity service network (CSN) 803, an access service network shown in FIG. 8 , the interface between the access serving network and the mobile station 801B 80IA and 802B between the mobile station 802A interfaces being Rl interface, the interface between an access service network and connectivity service network 803 80IA, 80IB and the access service network connected the interface between the service network interface R3 803 respectively. Note that, in FIG. 8 is only a schematic view of a network of the WiMAX network architecture, in practical application, the WiMAX network architecture may have a plurality of access service networks, and mobile stations connected service network, a connection service network may access a plurality of access service networks, access service network may access a plurality of mobile stations.

[0086] 接入服务网络实现了移动台通过无线接入WiMAX网络所需的完整功能集,主要包括: [0086] an access service network to achieve a complete set of functions required by the mobile station radio access WiMAX network, including:

[0087] WiMAX Layer-2 (L2) connectivity with WiMAX SS/MS,完成与WiMAX终端的WiMAX 层2连接; [0087] WiMAX Layer-2 (L2) connectivity with WiMAX SS / MS, WiMAX connection layer 2 to complete the WiMAX terminals;

[0088] Transfer of AAA control messages to WiMAX subscriber' s Home NetworkService Provider (H-NSP) for authentication,authorization and session accountingfor subscriber sessions,为终端用户中转AAA控制消息到该用户的H-NSP,以实现对其的认证、授权和计费; [0088] Transfer of AAA control messages to WiMAX subscriber 's Home NetworkService Provider (H-NSP) for authentication, authorization and session accountingfor subscriber sessions, the end user control relay AAA message to the user's H-NSP, in order to achieve its authentication, authorization and accounting;

[0089] Network discovery and selection of an appropriate NSP that WiMAXsubscriber accesses WiMAX service (s) from,支持实现终端的网络发现和选择功能,用以发现和选择适当的NSP来为该用户提供适当的WiMAX业务; [0089] Network discovery and selection of an appropriate NSP that WiMAXsubscriber accesses WiMAX service (s) from, in support of the network discovery and selection function of the terminal to find and select the appropriate NSP to provide the appropriate WiMAX services for the user;

[0090] Relay functionality for establishing Layer-3(L3)connectivity with a WiMAXSS/MS(ie IP address allocation),为WiMAX终端提供中继功能以帮其实现层3连接的建立(例如IP地址分配); [0090] Relay functionality for establishing Layer-3 (L3) connectivity with a WiMAXSS / MS (ie IP address allocation), the WiMAX terminal providing relay functionality to help establish its implementation layer (e.g., IP address assignment) 3 connected;

[0091] Radio Resource Management,无限资源管理; [0091] Radio Resource Management, unlimited resource management;

[0092] ASN-CSN tunneling, ASN-CSN 隧道; [0092] ASN-CSN tunneling, ASN-CSN tunnel;

[0093] Intra-ASN mobility, ASN 间的移动性管理; [0093] Intra-ASN mobility management between mobility, ASN;

[0094] Paging and Location Management,寻呼与位置管理; [0094] Paging and Location Management, paging and location management;

[0095] Visited Location Register,访问位置登记。 [0095] Visited Location Register, the visitor location register.

[0096] CSN实现了为MS提供IP连接业务所需的完整功能集,包括: [0096] CSN required to achieve the full feature set to provide IP connectivity services to MS, comprising:

[0097] SS/MS IP address and endpoint parameter allocation for user sessions, WiMAX终端IP地址和节点参数分配; [0097] SS / MS IP address and endpoint parameter allocation for user sessions, WiMAX terminal IP address and the node distribution parameter;

[0098] Internet access,Internet 接入; [0098] Internet access, Internet access;

[0099] AAA proxy or server,AAA 代理或月艮务器; [0099] AAA proxy or server, AAA or agency that works to filter monthly;

[0100] Policy and Admission Control based on user subscription profiles,基于用户注册信息的策略控制与准入控制; [0100] Policy and Admission Control based on user subscription profiles, policy control and admission control based on the user registration information;

[0101] ASN-CSN tunneling support, ASN 与CSN 间隧道支持; [0101] ASN-CSN tunneling support, ASN and CSN tunnel between support;

[0102] WiMAX subscriberbilling and inter-operator settlement, WiMAX 用户计费与运营商间结算; [0102] WiMAX subscriberbilling and inter-operator settlement, WiMAX between the user and the accounting settlement operator;

[0103] Inter-CSN tunneling for roaming,用于漫游的CSN 间隧道; [0103] Inter-CSN tunneling for roaming, roaming for inter-CSN tunnel;

[0104] Inter-ASN mobi 1 ity (WiMAX services (eg , Location Based Services, Peer-to-Peer Services, Multimedia Broadcast/Multicast Services, IP-multimediaSubsystem Services,and Law Enforcement Services,among others),ASN [0104] Inter-ASN mobi 1 ity (WiMAX services (eg, Location Based Services, Peer-to-Peer Services, Multimedia Broadcast / Multicast Services, IP-multimediaSubsystem Services, and Law Enforcement Services, among others), ASN

13间移动性(WiMAX业务(例如,基于位置的业务,端到端业务,多媒体广播和多播业务,IP多媒体子系统业务,以及法律相关业务))。 13 Mobility (WiMAX business (for example, location-based services, end to end services, multimedia broadcast and multicast service, IP multimedia subsystem services, and legal-related business)).

[0105] 在图8中,接入服务网络801A包括业务流重定向单元Packet Redirector)8011A、802. 16e 功能单元(802. 16e Function)8012A、数据通道功能单元(DPFn) 8013A、外部代理单元(FA) 8014A、认证单元(Authenticator) 8015A 及MIP 客户端(MIP Client)8016A,802. 16e功能单元8012A提供802. 16e协议所规定的功能,数据通道功能单元8013A提供基站BS与接入服务网络网关ASN GW之间的R6接口数据通道功能,外部代理单元8014A提供外部代理功能,认证单元8015A提供认证功能,其中,802. 16e功能单元8012A设置于数据通道功能单元8013A与认证单元8015A之间,MIP客户端8016A与外部代理单元8014A连接。 [0105] In Figure 8, the access service network traffic flow redirection unit 801A includes a Packet Redirector) 8011A, 802. 16e functional unit (802. 16e Function) 8012A, a data path functional unit (DPFn) 8013A, foreign agent unit ( FA) 8014A, authentication unit (Authenticator) 8015A and a client MIP (MIP client) 8016A, 802. 16e 8012A function unit 802. 16e protocol provides a predetermined function, a data path function unit 8013A provided base station BS and the access service network gateway R6 interface between the data path function ASN GW, foreign agent provides foreign agent function unit 8014A, 8015A authentication unit providing an authentication function, wherein, 802. 16e function unit 8012A is provided between the data path unit and the authentication function unit 8013A 8015A, MIP the client connected to the external proxy unit 8016A 8014A. 业务流重定向单元8011A设置于数据通道功能单元8013A与外部代理单元8014A之间,用于转发同一个连接服务网络下的移动台之间的业务流。 8011A traffic flow redirecting means disposed between the data channel unit 8013A and the foreign agent function unit 8014A, for forwarding the traffic flow between a mobile station at the same connectivity service network. 业务流重定向单元8011A包括:目标IP地址解析模块,用于解析移动台802A发出的业务流的目标IP地址;映射关系管理模块,用于管理业务流的标识、目标移动台的HoA与目标移动台对应的接入服务网络的标识的映射关系。 8011A traffic flow redirection unit comprising: a destination IP address parsing module for parsing a destination IP address of the mobile station 802A traffic flow emitted; mapping relationship management module is used to identify a traffic flow management, and the HoA target mobile target mobile station identifier mapping relationship table corresponding to the access service network. 接入服务网络801B的结构与接入服务网络801A相同。 The same structure as the access service network 801A of the access service network 801B.

[0106] 对于在图8所示的接入服务网络801A下移动台之间互通的业务流,可以在I^cket 业务流重定向单元8011A进行转发,S卩,业务流依次经过802. 16e功能单元8012A、数据通道功能单元8013A的承载到达业务流重定向单元8011A,如果业务流重定向单元801IA发现业务流的目的地为接入服务网络801A下的移动台,则将业务流依次经过数据通道功能单元8013A、802. 16e功能单元8012A的承载,转发到目标移动台。 [0106] For the access service network shown in FIG. 8 801A interworking service flows between a mobile station, can be forwarded as I ^ cket traffic flow redirection unit 8011A, S Jie, service flow sequentially through 802. 16e function units 8012A, 8013A of the functional unit data path carrying traffic flow reaches the redirection unit 8011A, if the redirection unit 801IA service stream traffic flow is found to the destination mobile station in the access service network 801A, then the service flow sequentially through the data channel function unit 8013A, 802. 16e carrying functional unit 8012A, forwarded to the target mobile station.

[0107] 对于图8所示的移动台802A与移动台802B之间互通的业务流,可以在接入服务网络801A与接入服务网络801B之间进行转发,具体的说,可以在业务流重定向单元8011A 与业务流重定向单元801IB之间进行转发。 [0107] For the interworking between the mobile station 802A and mobile station 802B shown in FIG. 8 traffic flow can be forwarded between the access serving network access service network 801A and 801B, specifically, the traffic flow may be re forwarding between the orientation unit 8011A and the traffic flow redirection unit 801IB. 以移动台802A向移动台802B发送业务流为例, 业务流依次经过802. 16e功能单元8012A、数据通道功能单元8013A的承载到达业务流重定向单元8011A,如果业务流重定向单元8011A发现业务流的目的地为移动台802B,则将业务流转发到业务流重定向单元8011B,业务流重定向单元8011B再将业务流依次经过数据通道功能单元8013B、802. 16e功能单元8012B的承载转发到移动台802B。 In the mobile station 802A transmits the service flow to the mobile station 802B, for example, traffic flow sequentially through 802. 16e function unit 8012a, the data path functional unit 8013A bearer traffic flow reaches the redirection unit 8011A, 8011A if found traffic flow redirection unit traffic flow destination mobile station 802B, then the traffic stream to stream traffic redirection unit 8011B, 8011B and then traffic flow redirection unit traffic flow sequentially through the data path functional unit 8013B, 802. 16e carrying functional unit is forwarded to the mobile 8012B Taiwan 802B. 移动台802B向移动台802A发送业务流的流程与上述流程原理相同。 802B transmits the mobile station to the mobile station service flow process and the above-described process 802A same principle.

[0108] 对于不同连接服务网络下的移动台之间互通的业务流或其他业务流,可以经业务流重定向单元转发出去。 [0108] For the interworking between the mobile station under different connectivity service network traffic flows, or other traffic flows may be forwarded via the traffic flow redirection unit. 以移动台802A向另一个连接服务网络下的移动台发送业务流为例,业务流依次经过802. 16e功能单元8012A、数据通道功能单元8013A的承载到达业务流重定向单元8011A,如果业务流重定向单元8011A发现业务流的目的地为另一个连接服务网络下的移动台,业务流重定向单元8011A将业务流转发到外部代理单元8014A,外部代理单元8014A将业务流转发到连接服务网络803,连接服务网络803将业务流转发出去。 In the mobile station 802A transmits the service flow to the mobile station in the other connectivity service network, for example, traffic flow sequentially through 802. 16e function unit 8012a, the data path functional unit 8013A bearer traffic flow reaches the redirection unit 8011A, if heavy traffic flow 8011A alignment unit traffic flow is found to the destination mobile station is connected at the other service network, traffic flow redirection unit 8011A traffic stream to the foreign agent unit 8014A, 8014A unit foreign agent traffic stream to the connectivity service network 803, Connectivity service network sent out 803 traffic flow.

[0109] 移动台发出的业务流到达业务流重定向单元时,业务流重定向单元需要解析业务流的目标IP地址,即判断业务流的目的地是否为移动台、目标移动台是否与发出业务流的移动台在同一个连接服务网络下和/或同一个接入服务网络下等。 [0109] service flow sent by the mobile station reaches the redirection unit traffic flow, traffic flow redirection unit needs to resolve the IP address of the target traffic flow, i.e., determines whether the destination of the traffic flow a mobile station, whether the target mobile station sends a service in the network connection service with a mobile flow and / or access to the same service network. 以移动台802A发出业务流为例,如果目标IP地址为接入服务网络801A的移动台的HoA,则业务流重定向单元8011A将业务流转发到目标移动台;如果目标IP地址为移动台802B的HoA,则业务流重定向单元801IA将业务流转发到业务流重定向单元801IB,业务流重定向单元801IB再将业务流转发到移动台802B ;如果目标IP地址为不同连接服务网络下的移动台的HoA,则业务流重定向单元8011A将业务流转发到连接服务网络803,连接服务网络803将业务流发送到目标移动台对应的连接服务网络,目标移动台对应的连接服务网络再将业务流转发到目标移动台。 In the mobile station sends a service stream 802A as an example, if the destination IP address is the HoA of the access service network the mobile station 801A, the traffic flow redirection unit 8011A traffic stream to the target mobile station; if the destination IP address of the mobile station 802B the HoA, the traffic flow redirection unit 801IA traffic stream to stream traffic redirection unit 801IB, then the traffic flow redirection unit 801IB traffic stream to the mobile station 802B; if the destination IP address at the mobile network connection service different the HoA station, the traffic flow redirection unit 8011A traffic stream to the connectivity service network 803, a connection service network 803 sends the service flow corresponding to the target mobile station connectivity service network, the target mobile station corresponding to the connectivity service network service then traffic to the target mobile station.

[0110] 业务流重定向单元80IlA解析目标IP地址的方式有很多。 There are many [0110] service flow redirection unit 80IlA resolve the destination IP addresses.

[0111] 例如,业务流重定向单元8011A设置一个转发表,转发表中存储已经建立的业务流标识、目标移动台的HoA与目标移动台对应的接入服务网络的标识之间的映射关系,映射关系可以为如下形式: [0111] For example, traffic flow redirection unit 8011A provided a forwarding table, forwarding the stored mapping relationship between service flow identifier already established, the mobile station identifies the HoA and the target access service network corresponding to the target mobile station, mapping relationship may be in the following form:

[0112] (SFID, D-HoA) => (ASN ID, R4Tunnel), [0112] (SFID, D-HoA) => (ASN ID, R4Tunnel),

[0113] 其中,SFID表示业务流标识,D-HoA表示目标移动台的HoA,ASN ID表示目标移动台对应的接入服务网络的标识,R4Timnel表示接入服务网络之间用于转发移动台之间互通的业务流的隧道。 [0113] wherein, SFID represents a service flow identifier, D-HoA denotes the target mobile station HoA, ASN ID flag indicating that the mobile station corresponding to the target access service network, R4Timnel denotes a forward access service network between the mobile station interworking between the tunnel traffic flow.

[0114] 业务流重定向单元8011A接收到经过802. 16e功能单元8012A、数据通道功能单元8013A的业务流后,首先查询转发表中是否存在接收的业务流的标识、业务流的目标IP地址与接入服务网络之间的映射关系,如果存在,说明业务流的目的地为移动台。 [0114] service flow is received through redirection unit 802. 16e 8011A function unit 8012a, the data path functional unit 8013A of the traffic flow, turn first queries whether there is a traffic flow received identification table, the destination IP address and traffic flow a mapping relationship between the access service network, if present, the destination mobile station of the traffic flow.

[0115] 如果映射关系中的ASN ID为接入服务网络801A的ID,业务流重定向单元8011A 将业务流转发给目标移动台,这种情况下,R4Timnel的值为任意值,不具有实际意义。 [0115] If the mapping relationship of the ASN ID ID to access the network 801A, 8011A traffic flow redirection unit the traffic stream to the target mobile station, in this case, R4Timnel value is an arbitrary value, no practical significance . 如果映射关系中的ASN ID为接入服务网络801B的ID,业务流重定向单元8011A将业务流转发给业务流重定向单元8011B,业务流重定向单元8011B再将业务流转发给移动台802B,这种情况下,R4Turmel的值表示接入服务网络801A与接入服务网络802B之间用于转发移动台之间互通的业务流的隧道。 If the mapping of the access serving ASN ID Network ID, traffic flow redirection unit 801B 8011A traffic flow of traffic flows sent to the redirection unit 8011B, 8011B and then traffic flow redirection unit service flow to the mobile station 802B, in this case, the value of the tunnel for forwarding R4Turmel represents interworking between the mobile station traffic flow between the access service network 801A and 802B of the access service network. 如果映射关系中的ASN ID为与接入服务网络801A不在同一个连接服务网络下的ASN ID,业务流重定向单元8011A将业务流转发给连接服务网络803, 连接服务网络803再将业务流转发给目标移动台对应的连接服务网络,目标移动台对应的连接服务网络再将业务流通过目标移动台对应的接入服务网络中的业务流重定向单元将业务流转发给目标移动台,这种情况下,ASN ID及IMTurmel取值缺省路由。 If the mapping to the ASN ID 801A and the access service network connected to the same ASN ID is not under the network, traffic flow redirection unit 8011A traffic stream to the connectivity service network 803, the network connection service 803 then flow forwarding service corresponding to the target mobile station connectivity service network, to redirect traffic flow corresponding to the target mobile station is connected through the network and then traffic flow corresponding to the target mobile station in the serving network access unit transfer service to targeted mobile station, such case, ASN ID and IMTurmel value of the default route.

[0116] 如果转发表中不存在接收的业务流的标识、业务流的目标IP地址与接入服务网络之间的映射关系,业务流重定向单元8011A可以采取如下三种方式获取关于业务流的目的地信息和/或目的地对应的接入服务网络信息: [0116] If the mapping between the IP address and the target access serving network identifier received traffic flow, traffic flow does not exist in the forwarding table, the redirection unit traffic flow can take the following three ways 8011A acquires traffic flow on destination information and / or service corresponding to a destination access network information:

[0117] 1.业务流重定向单元8011A向连接服务网络803查询关于业务流的目的地信息, 连接服务网络803将查询结果返回给业务流重定向单元8011A,如果目的地为移动台,连接服务网络803会返回目标移动台对应的接入服务网络信息,例如ASN ID等; [0117] 1. Operational flow redirection unit 8011A queries destination information about traffic flow 803 to the connectivity service network, network connection service 803 returns the query results to the traffic flow redirection unit 8011A, if the destination mobile station, connection service network access service network 803 returns information corresponding to the target mobile station, e.g. ASN ID and the like;

[0118] 2.接入服务网络801A可以接收其他接入服务网络同步过来的移动台信息,业务流重定向单元8011A可以从这些信息中查询关于业务流的目的地信息,例如,接入服务网络801B接入了移动台802B,接入服务网络801B可以将移动台802B的信息同步到接入服务网络801A,接入服务网络801A通过这种方式可以收集多个移动台信息; [0118] 2. The access network 801A may receive other access service network synchronized from the mobile station information, traffic flow redirection unit 8011A may query information on a destination information from the traffic flow, for example, an access service network 801B 802B access to the mobile station, an access service network information table 801B 802B may be moved to synchronize access service network 801A, 801A can access service network a plurality of mobile station information collected in this way;

[0119] 3.接入服务网络801A向同一个连接服务网络下的所有接入服务网络发出查询请求,询问业务流的目的地信息,例如,接入服务网络801A可以向所有的同在一个连接服务网络下的接入服务网络询问目标IP地址对应的移动台是在哪个接入服务网络下及目标移动台的信息。 [0119] 3. The access service network 801A issues a query request to all of the access service network at the same connectivity service network, destination information query traffic flow, e.g., an access service network 801A may be connected to all with a access service network service network inquiry under the destination IP address corresponding to the mobile station and the target mobile station is in service under which access network information. [0120] 业务流重定向单元8011A在获得目标移动台信息和/或目标移动台对应的接入服务网络信息后,建立业务流标识、目标移动台的HoA与目标移动台对应的接入服务网络的标识之间的映射关系,业务流重定向单元8011A对于后续相同的移动台发出的目标IP地址相同的业务流,可以参照这个映射关系进行转发。 [0120] 8011A redirection unit traffic flow after obtaining the target mobile station information and / or the target access service corresponding to the mobile station network information to establish a service flow identifier, the mobile station corresponding to the HoA with the target access service network target mobile station mapping relationship between the identifier, the same destination IP address of the service stream for subsequent redirection unit 8011A same mobile station sent traffic flows may be forwarded with reference to the mapping relationship.

[0121] 如果业务流重定向单元8011A得知业务流的目的地为非移动台,则ASNID及R4Tunnel取值缺省路由,业务流重定向单元8011A将业务流转发到连接服务网络803,由连接服务网络803将业务流转发出去。 [0121] If the traffic flow redirection unit 8011A destination traffic flow that a non-mobile station, the default value R4Tunnel ASNID and route traffic flow redirection unit 8011A traffic stream to the connectivity service network 803, is connected by a network traffic flow 803 sent out.

[0122] 业务流重定向单元8011B对目标IP地址的解析与其他处理过程与业务流重定向单元8011A相同。 [0122] Analytical traffic flow redirection unit 8011B to the same destination IP address and other processes traffic flow redirection unit 8011A.

[0123] 虽然上面的大部分实施例都是以WiMAX网络架构对本发明的方法实施例、接入网实施例以及无线网络实施例进行说明的,但在实际应用中,其他无线网络的实施例同样可以用于说明本发明的方法实施例、接入网实施例以及无线网络实施例。 [0123] Although the above embodiments are most WiMAX network architecture in an embodiment of the method of the present invention, a wireless network and the access network Example embodiments described embodiment, but in practical applications, other embodiments of the same wireless network the method can be used to illustrate embodiments of the present invention, the access network and the wireless network embodiment Examples. 下面以CDMA网络为例进行说明。 Below CDMA network as an example.

[0124] 图9所示的是CDMA网络的结构示意图。 It is a schematic diagram of a CDMA network as shown in [0124] FIG. 具体的,业务流重定向单元(Packet Redirector)在PDSN中位于FA之前,对于上行方向,来自MS的业务流经过CDMA传递功能单元(CDMA Delivery Function)处理后,传递到业务流重定向单元进行处理,根据处理结果,处理后的业务流一部分经FA被送到HA进行处理,一部分通过PDSN间的隧道送到其它相应的PDSN进行处理;对于下行方向,对来自FA的业务流进行透传,当然,也可以对来自其他PDSN的业务流进行透传。 Specifically, the traffic flow redirection unit (Packet Redirector) located before the FA in the PDSN, for the uplink direction, the traffic from the MS CDMA transmission stream through a functional unit (CDMA Delivery Function) after treatment, transferred to a unit for processing traffic flow redirection the processing result, a portion of traffic flows through the FA to the HA after the process is processed, a portion corresponding to the other through the tunnel between PDSN processes the PDSN; for the downstream direction, the service stream from the FA transparently transmit, of course, also can transparently transmit the service stream from the other PDSN. 其中,FA用于实现标准MIP协议所规定的外部代理的功能,业务流重定向单元通过判断上行业务流的目的地址来确定其转发方向,以实现PDSN间的数据转发。 Wherein, the FA Foreign Agent for implementing the functions specified standard MIP protocol, service flow redirection unit determines its forward direction is determined by the destination address of the upstream traffic flow, to forward data between the PDSN.

[0125] 在本发明的实施例中,由于同一个核心网下且同一个接入网对应的终端之间的业务流是在同一个接入网内部转发的,无需核心网的参与,这样可以进一步减轻核心网的负载。 [0125] In an embodiment of the present invention, since the core network under one and the same traffic flow between the access network corresponding to the terminal is connected to the internal network in the same forward, without the involvement of the core network, which can further reduce the load on the core network.

[0126] 在本发明的实施例中,由于同一个核心网下且同一个接入网对应的终端之间的业务流是在接入网内部直接转发的,业务流无需再经过核心网转发,所以进一步减少了终端之间的互通时延。 [0126] In an embodiment of the present invention since under one and the same core network connection traffic flow between the access network corresponding to the access terminal in the internal network are forwarded directly, without having to go through the core service flow forwarding network, thus further reducing the delay between the exchange terminal.

[0127] 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0127] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art who, without departing from the principles of the present invention, further improvements and modifications may be made, such modifications and modifications should be the scope of the present invention.

Claims (13)

  1. 1. 一种基于移动互联网协议MIP的无线网络中的终端之间互通的方法,其特征在于包括:源终端对应的接入网接收源终端发出的业务流;源终端对应的接入网确定目标终端对应的接入网,或者确定目标终端对应的核心网及接入网;如果所述业务流的目标终端与所述源终端同在一个核心网下但对应不同的接入网,则源终端对应的接入网将所述业务流直接发到目标终端对应的接入网;目标终端对应的接入网将所述业务流发到目标终端;其中,至少按照下述一种方式确定目标终端对应的接入网:查询预先保存的业务流标识和目标终端地址与其对应的接入网之间的映射关系,以确定目标终端对应的接入网;向源终端对应的接入网和/或核心网查询目标终端对应的接入网;向同一核心网下的所有接入网查询目标终端对应的接入网。 1. A method for interworking between a mobile internet protocol MIP wireless network based on a terminal, comprising: a source terminal service flow corresponding to the source access network receiving terminal issued; determining a target access network corresponding to the source terminal an access network corresponding to the terminal, determining a target terminal or corresponding core network and access network; target terminal if the traffic flow at the source terminal, but with different access networks corresponding to the next core network, the source terminal corresponding to the traffic stream access network directly to the corresponding access network of the target terminal; a terminal corresponding to a target access network to send the service flow to the target terminal; wherein the at least the target terminal determined in the following way corresponding access network: query the mapping relationship between service flow identifier and the address of the destination terminal stored in advance corresponding access network, to determine the target access network corresponding to the terminal; terminal corresponding to the source access network and / or the core network query terminal corresponding to the target access network; all under the same core network access network query terminal corresponding to the target access network.
  2. 2.如权利要求1所述的终端之间互通的方法,其特征在于还包括:如果所述业务流的目标终端与所述源终端同在一个核心网下且对应相同的接入网,则源终端对应的接入网将所述业务流直接发到目标终端。 2. The method of interworking between a terminal according to claim 1, characterized by further comprising: if the target terminal and the traffic flow at the source terminal with a core network and an access network corresponding to the same, then the source terminal corresponding to the access network the traffic flow directly to the target terminal.
  3. 3.如权利要求1所述的终端之间互通的方法,其特征在于还包括:如果所述业务流的目标终端与所述源终端不在同一个核心网下,则源终端对应的接入网将所述业务流发到源终端对应的核心网,源终端对应的核心网将所述业务流发到目标终端对应的核心网,目标终端对应的核心网将所述业务流发到目标终端对应的接入网,目标终端对应的接入网将所述业务流发到目标终端。 3. The method of interworking between a terminal according to claim 1, characterized by further comprising: a target terminal, if the traffic flow with the source terminal is not the same core network, the access network corresponding to the source terminal the service flow sent to the core network corresponding to the source terminal, the source terminal of the corresponding core network service flow sent to the destination terminal corresponding to the core network, the core network corresponding to the target terminal to the service flow sent to the destination terminal corresponding to access network, the target access network corresponding to the terminal to send the service flow to the target terminal.
  4. 4.如权利要求1所述的终端之间互通的方法,其特征在于至少按照下述一种方式确定目标终端对应的核心网:查询预先保存的业务流标识和目标终端地址与其对应的接入网以及对应的核心网之间的映射关系,以确定目标终端对应的核心网;向源终端对应的接入网和/或核心网查询目标终端对应的核心网。 4. The method of interworking between a terminal according to claim 1, characterized in that the at least determining a target core network corresponding to the terminal in the following ways: Query service flow identifier and the address of the destination terminal stored in advance corresponding thereto access a mapping relationship between the core network and the corresponding network, to determine the target core network corresponding to the terminal; terminal corresponding to the source access network and / or the core network corresponding to the terminal queries the target core network.
  5. 5.如权利要求1所述的终端之间互通的方法,其特征在于:所述终端为WiMAX网络架构的终端,所述接入网为WiMAX网络架构的接入服务网络ASN,所述核心网为WiMAX网络架构的连接服务网络CSN。 5. The method of interworking between a terminal according to claim 1, wherein: said terminal is a terminal WiMAX network architecture, the access network is a WiMAX access service network architecture of the ASN network, the core network the WiMAX network architecture connecting service network CSN.
  6. 6.如权利要求5所述的终端之间互通的方法,其特征在于:所述终端为移动台MS。 The method of interworking between a terminal 5 as claimed in claim 6, wherein: the terminal is a mobile station MS.
  7. 7. 一种WiMAX网络架构的接入服务网络ASN,包括R6接口数据通道功能单元及外部代理FA单元,其特征在于还包括:业务流重定向单元,设置于R6接口数据通道功能单元及FA单元之间,用于转发两个MS 之间的业务流,其中,如果两个MS同在一个连接服务网络CSN下但对应不同的ASN,并且所述业务流重定向单元对应源MS,则所述业务流重定向单元将源MS发出的业务流直接转发到目标MS对应的业务流重定向单元;如果两个MS同在一个CSN下但对应不同的ASN,并且所述业务流重定向单元对应目标MS,则所述业务流重定向单元直接从源MS对应的业务流重定向单元接收业务流;源MS发出的业务流到达源MS对应的业务流重定向单元时,源MS对应的业务流重定向单元解析业务流的目标IP地址,源MS对应的业务流重定向单元按照下述至少一种方式解析目标IP地址:查询预先保存的业务流 A network architecture of WiMAX access service network the ASN, R6 interface including a data channel and an FA functional unit means, characterized by further comprising: a traffic flow redirection means, disposed in the data path functional unit R6 interface unit and FA between, for forwarding the traffic flow between two MS, wherein the MS if the two at the same connectivity service network CSN but a different corresponding to the ASN, and the traffic flow redirection unit corresponding to the source MS, then the traffic redirection unit traffic flow stream emitted from the source MS forwarded directly to the target MS service flow corresponding redirection unit; if two MS in a CSN same but correspond to different ASN, and the corresponding target traffic flow redirection unit MS, then the traffic flow redirection unit redirection unit receives the traffic flow directly from the source corresponding to the MS service flow; a traffic flow to the source emitted from the source MS corresponding to the MS service flow redirection unit, source traffic flow corresponding to the MS weight destination IP address parsing unit traffic flow orientation, corresponding to the source MS service flow redirecting means resolve the destination IP address in the following way at least one of: traffic flow query stored in advance 识和目标MS的地址与其对应的ASN之间的映射关系; 向源MS对应的CSN查询关于业务流的目的地信息;从源MS对应的ASN接收的其他ASN同步过来的MS信息中查询关于业务流的目的地信息;向同一CSN下的所有ASN查询业务流的目的地信息。 ASN mapping relationship between the address and the identification of the corresponding target MS; MS corresponding to the source queries the CSN destination information about traffic flow; MS ASN ASN other information received from the source MS corresponding synchronized from the query on operational destination information flow; the destination information of all ASN queries to the same traffic flow under CSN.
  8. 8.如权利要求7所述的WiMAX网络架构的ASN,其特征在于:如果所述业务流重定向单元同时对应所述两个MS,则所述业务流重定向单元在接收到源MS发出的业务流后,直接将所述业务流转发到R6接口数据通道功能单元,再由R6接口数据通道功能单元将所述业务流转发到目标MS。 ASN 8. The WiMAX network architecture according to claim 7, wherein: if the service flow corresponding to the redirection unit simultaneously two MS, the traffic flow is redirected to the source unit MS receives the emitted after the traffic flow, the traffic flow is directly sent to the R6 interface functional unit data path, then the R6 interface functional unit data path of the service flow sent to the target MS.
  9. 9. 一种基于MIP的无线网络,包括终端、接入网及核心网,其特征在于:所述接入网用于转发两个终端之间的业务流,其中,如果两个终端同在一个核心网下但对应不同的接入网,并且所述接入网对应源终端,则所述接入网将源终端发出的业务流直接转发到目标终端对应的接入网;如果两个终端同在一个核心网下但对应不同的接入网,并且所述接入网对应目标终端,则所述接入网直接从源终端对应的接入网接收业务流;源终端发出的业务流到达源终端对应的接入网时,源终端对应的接入网的业务流重定向单元按照下述至少一种方式解析业务流的目标IP地址:查询预先保存的业务流标识和目标终端地址与其对应的接入网之间的映射关系; 向源终端对应的接入网和/或核心网查询目标终端对应的接入网; 向同一核心网下的所有接入网查询目标终端对应的 A MIP based wireless network, comprising a terminal, an access network and a core network, wherein: the access network for forwarding the traffic flow between two terminals, wherein, if the same two terminals at a However, the core network corresponding to a different access network and the access network corresponding to the source terminal, then the access network forward the traffic streams sent by the source terminal corresponding to the terminal directly to the target access network; if the same two terminals in the core network, but corresponding to a different access network and the access network corresponding to the destination terminal, then the access network corresponding to the access network directly from the source terminal receives the service stream; service flow sent from the terminal to the source source corresponding to the terminal when the access network, the access network corresponding to the source terminal of the traffic flow redirecting means resolve the destination IP address of the service stream according to at least one of the following ways: query service flow identifier and the address of the destination terminal stored in advance corresponding thereto then the mapping relationship between networks; query the target terminal to the access network corresponding to the source terminal and / or the core network corresponding to the access network; all target access network query corresponding to the terminal to the core network under the same 入网。 Network.
  10. 10.如权利要求9所述的无线网络,其特征在于:如果所述接入网同时对应所述两个终端,则所述接入网直接将源终端发出的业务流转发到目标终端。 10. The wireless network according to claim 9, wherein: if the access network corresponding to the two terminals simultaneously, then the access network directly to the source terminal service flow sent sent to the target terminal.
  11. 11. 一种WiMAX网络,包括MS、接入服务网络ASN及连接服务网络CSN,其特征在于:所述ASN用于转发两个MS之间的业务流,其中,如果两个MS同在一个CSN下但对应不同的ASN,并且所述ASN对应源MS,则所述ASN将源MS发出的业务流直接转发到目标MS对应的ASN ;如果两个MS同在一个CSN下但对应不同的ASN,并且所述ASN对应目标MS,则所述ASN 直接从源MS对应的ASN接收业务流;源MS发出的业务流到达源MS对应的ASN的业务流重定向单元时,源MS对应的ASN的业务流重定向单元按照下述至少一种方式解析业务流的目标IP地址:查询预先保存的业务流标识和目标MS的地址与其对应的接入网之间的映射关系; 向源MS对应的CSN查询关于业务流的目的地信息; 从接收的其他ASN同步过来的MS信息中查询关于业务流的目的地信息; 向同一CSN下的所有ASN查询业务流的目的地信息。 A WiMAX network, including MS, Access Service Network ASN and a Connectivity Service Network CSN, wherein: the ASN for forwarding the traffic flow between two MS, wherein, if the same two MS in a CSN under different but the corresponding ASN, the ASN and the MS corresponding to the source, if the source MS the ASN service flow sent directly to the target MS forwards a corresponding ASN; if the two MS in a CSN but with different corresponding ASN, corresponding to the target MS and the ASN, the ASN of the MS corresponding directly from the source ASN receives traffic stream; MS a traffic flow emitted from a source to the source ASN MS service flow corresponding redirection unit, corresponding to the MS source ASN service flow redirecting means in the following at least one way to resolve the IP address of the target traffic flow: query the mapping relationship between the address and the target MS a service flow identifier stored in advance in the corresponding access network; corresponding to a query to the source MS the CSN destination information on traffic flow; inquiry destination information on traffic flow information from other MS ASN received sync over in; information query to the destination ASN traffic flow all under the same CSN.
  12. 12.如权利要求11所述的WiMAX网络,其特征在于:如果所述ASN同时对应所述两个MS,则所述ASN直接将源MS发出的业务流转发到目标MS。 12. The WiMAX network according to claim 11, wherein: if the two corresponding to the MS simultaneously ASN, the ASN directly to the service flow sent to the source emitted from the target MS MS.
  13. 13.如权利要求11所述的WiMAX网络,其特征在于:ASN之间设置有R4隧道,所述R4 隧道标识为承载MS之间业务流的类型。 13. WiMAX network according to claim 11, wherein: R4 is provided between the ASN tunnels, the tunnels identified as a Type R4 traffic flow between the carrier MS.
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