CN101127663A - A system and method for access of mobile self-organized network to integrated network - Google Patents

A system and method for access of mobile self-organized network to integrated network Download PDF

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CN101127663A
CN101127663A CN 200710121753 CN200710121753A CN101127663A CN 101127663 A CN101127663 A CN 101127663A CN 200710121753 CN200710121753 CN 200710121753 CN 200710121753 A CN200710121753 A CN 200710121753A CN 101127663 A CN101127663 A CN 101127663A
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network
mobile
organized
self
integrated
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CN 200710121753
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CN101127663B (en )
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张宏科
杨水根
王洪超
秦雅娟
罗洪斌
伟 苏
平 董
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北京交通大学
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The utility model relates to a system and a method of connecting a mobile self-organized network to an integrated network, which is a network system architecture connecting a mobile self-organized network to an integrated network, and a method of route setup and data distribution between the mobile self-organized network and the integrated network. The utility model comprises a mobile node MN, an access switching router ASR, a mapping server IMS and an approval center AC. The operating steps comprise discovering and setting up a route, that is a discovery process of an access switching router and a setup process of an interior route of the mobile self-organized network; and a logon process of the mobile node. The utility model has the advantages that thanks to the uniform access identification - switching route identification, not only realizing that the mobile self-organized network can be fast and effectively connected to the integrated network, but also effectively supporting the movement of the mobile node in the interior of the mobile self-organized network, thus overcoming the problems of the low moving speed of MIPv4/MIPv6 and the expandability of NAT mechanism.

Description

一种移动自组织网络接入一体化网络的系统及方法技术领域本发明涉及一种移动自组织网络接入一体化网络的系统及方法,是一种通过网络,以协议为特征的电数字处理通讯方法,是一种将移动自组织网络接入一体化化网络的网络体系结构,以及移动自组织网络与一体化网络之间的路由建立和数据分发的方法。 A mobile ad-hoc network of integrated network access system and method Technical Field The present invention relates to a mobile ad hoc network system and method for an integrated network access, via a network to protocol features of the electrical digital processing communication method, a mobile ad-hoc network access network architecture network and the mobile to establish a method of self-routing, and data distribution between a network organization and integration of the integration network. 背景技术移动自组织网络(MANET, Mobile ad-hoc networks )是一种动态的、拓朴结构不断变化的网络。 BACKGROUND Mobile ad hoc network (MANET, Mobile ad-hoc networks) is a dynamic, changing network topology. 移动自组织网络中没有固定的路由器或交换机节点,完全依靠移动节点进行路由维护和数据转发。 Mobile ad hoc network without a fixed router or switch node, the mobile node entirely on data forwarding and routing maintenance. 移动节点之间自发的形成一种具有临时性质的网络,网络中的移动节点为其他有通信需求但是不相邻的节点转发数据。 Spontaneous forming network having a temporary nature between a mobile node, the mobile nodes in the network need to communicate with other nodes adjacent to, but not forward data. 随着笔记本电脑和手机等移动终端的不断广泛应用,越来越多的移动网络开始不断的涌现,进而促进了移动自组织网络技术的快速发展。 With the widespread use laptops and cell phones and other mobile terminals, more and more of the mobile network began to emerge, thus contributing to the rapid development of mobile ad hoc network technology. 移动自组织网络能够取得成功的一个必要前提是其能够提供各种固定网络的接入能力,并允许用户随时随地的访问各种固定网络提供的服务。 A necessary precondition to be successful mobile ad-hoc network is capable of providing a variety of fixed network access capability and allows users anytime, anywhere access various services provided by the network fixed. 要使移动自组织网络接入到固定网络,有多种技术难题需要解决,例如位置管理、切换和路由等。 To MANET access to a fixed network, a variety of technical problems to be solved, such as location management, switching and routing. 移动自组织网络内部的节点可以通过特定的路由协议, 如AODV (Ad Hoc On Demand Distance Vector) 、 OLSR ( Optimized Link State Routing Protocol)和DSR ( Dynamic Source Routing Protocol)等,建立和维护网 Mobile Ad network node within the organization through specific routing protocols such as AODV (Ad Hoc On Demand Distance Vector), OLSR (Optimized Link State Routing Protocol) and DSR (Dynamic Source Routing Protocol), and establishing and maintaining network

络路由信息。 Network routing information. 当移动节点访问固定网络节点时,它必须找到一个能够为MANET 提供固定网络接入的网关,而移动自组织网络路由协议并不能提供这样的功能。 When the mobile node to access a fixed network node, it must find a fixed network gateway to provide access to the MANET, the MANET routing protocols do not provide such functionality. 目前为MANET提供固定网络接入的方案有两类, 一类基于移动IPv4/移动IPv6 (MIPv4/MIPv6, Mobile IPv4/Mobile IPv6)来实现,另一类基于网络地址转换4支术(NAT, Network Address Translation)实现。 MANET currently provides fixed network access program has two categories based on the movement to achieve the IPv4 / Mobile IPv6 (MIPv4 / MIPv6, Mobile IPv4 / Mobile IPv6), another four-based network address translation technique (NAT, Network Address Translation) implementation. MIPv4/MIPv6虽然提供了一种在互联网中支持移动的方法,但是从本质上来说,它并不适合于为MANET提供互联网的接入功能。 MIPv4 / MIPv6 while providing a method of supporting the mobile Internet, but in essence, it is not suitable for providing Internet access function for MANET. 首先,当一个移动节点从一个互联网接入点移动到另外一个互联网接入点的时候,该移动节点必须获取一个新的转交地址(CoA, Care-of Address ),并且将该CoA在它的家乡代理(HA, Home Agent)进行注册。 First, when a mobile node moves from one access point to another Internet internet access point when the mobile node must obtain a new care-of address (CoA, Care-of Address), and the CoA in its home agent (HA, Home agent) to register. 相对于链路切换时延来说,注册机制所耗费时间非常长,尤其是当移动节点距离其家乡代理很远的时候这个问题更加严重。 Link switching delay, the registration mechanism that takes a very long time, especially when the mobile node from its home agent when the far more serious problem with respect. 其次,MIPv4/IPv6在设计之初假定外地代理(或接入路由器)与移动节点在物理链路上是相邻的,对于多跳的MANET来说,这一假设不再成立,移动节点将不能够通过链路层机制来得知自己的外地代理(或接入交换路由器)发生了变化。 Secondly, MIPv4 / IPv6 was designed with assumed foreign agent (or access router) and the mobile node on a physical link are adjacent, for a multi-hop MANET is, this assumption is no longer valid, the mobile node will not It is able to know his own foreign agent (or access switch router) through a link layer mechanism changes. 再次,MIPv4/MIPv6在配置CoA时所采用的重复地址检测机制(DAD, Duplicate Address Detection)同样不适合多跳的MANET ,而且DAD所消耗的时间是秒级的,对于快速移动来说是不可忍受的。 Again, MIPv4 / MIPv6 CoA used when configuring the mechanism duplicate address detection (DAD, Duplicate Address Detection) are not for the MANET multi-hop, but the time is consumed DAD order of seconds, is fast moving intolerable of. 基于NAT机制的MANET接入互联网方案存在着严重的可扩展性问题。 MANET access Internet solutions based on NAT mechanisms there is a serious scalability issues. 在这种方案中,其他节点不能够主动访问位于NAT网络之内的节点,互联网所推崇的端到端通信无法得到保-〖正。 In this embodiment, the other nodes can not access the active node located within the NAT network, the Internet end communication security can not be respected - 〖positive. 并且,在基于NAT的方案中,属于一个通信连接的数据包必须从相同的互联网接入点传输, 一旦节点移动到其他的接入点, 该通信连接就会中断,必须重新建立连接。 Further, in a NAT-based scheme, packets belonging to a communication connection must, once node moves to another access point, the communication connection will be dropped from the same Internet access point transmission, the connection must be reestablished.

发明内容为克服现有技术的问题,本发明提出一种移动自组织网络接入一体化网络的系统及方法,以解决现在移动自组织网络接入互联网所具有的路由方式复杂、 移动切换时延大等缺陷。 SUMMARY OF THE INVENTION To overcome the prior art problems, present invention provides a system and method for mobile ad-hoc network access integrated network to address now access the Internet from the network organization mobile has complex routing, a mobile switching delay large defects. 本发明在一体化网络体系结构和移动自组织网络理论的基础上,将移动自组织网络作为接入网接入到一体化网络核心网络,并利用一体化网络中终端的接入标识不随位置移动而改变的特点,提供了终端在移动过程中的快速切换性能。 In the present invention, an integrated network architecture and from the mobile network theory based on the tissue, the mobile ad hoc network as an access network the access network to the core network integration, and integrated using the terminal in the network access identifier does not vary with position change the characteristics, performance provides a fast handover process in a mobile terminal. 本发明的目的是这样实现的: 一种移动自组织网络接入一体化网络的系统, 包括至少两个具有至少一个无线接口的使用接入标识来建立和维护路由信息的移动节点MN,所述MN与至少一个作为移动自组织网络访问一体化网络核心网的接入点并负责为移动自组织网络内部节点分配和维护接入一交换路由标识映射关系、并为移动自组织网络内部节点提供移动性支持的接入交换路由器ASR连接,所述ASR与至少一个用于维护移动节点的接入一交换路由标识的映射信息并负责移动节点的宏移动管理和位置管理的映射服务器IMS,所述的IMS 与至少一个维护所有节点的认证信息负责对节点进行身份认证和授权的认证中心AC连接;除上述连接之外,所述的MN、 ASR、 IMS、 AC之间以有线或无线的方式相互电连接组成系统。 Object of the present invention is implemented: a mobile self-organizing network integrated network access system comprising at least two access identifier used to establish and maintain routing information of the mobile node having at least one wireless interface MN, the MN with at least one access point as a mobile self-organizing network access integrated network core network and mobile ad-hoc network is responsible for the distribution and maintenance of internal nodes access a switching and routing identifier mapping relationship, and provide mobile for mobile ad-hoc network internal node support access router ASR switched connection, with the ASR for maintaining access to at least a mobile node a routing identifier mapping information exchange and the mobile node is responsible for macro mobility management and location management server mapping the IMS, according to IMS authentication information with at least one maintenance node is responsible for all the nodes of the authentication center AC connection authentication and authorization; in addition to the connecting, the MN, ASR, IMS, AC between a wired or wireless manner electrically connect up the system. 一种移动自组织网络接入一体化网络的方法包括:移动节点MN、接入交换路由器ASR、映射服务器IMS、认证中心AC,其运行步骤是:发现及建立路由的步骤A:接入交换路由器的发现以及移动自组织网络内部路由的建立;注册的步骤B:移动节点的注册过程。 A mobile ad-hoc network integrated network access method comprising: a mobile node MN, the access switch router ASR, mapping server IMS, the authentication center AC, which run the steps of: establishing a route discovery and Step A: Access Switching Router the discovery and establishing internal routing mobile ad hoc network; registered step B: the mobile node registration process. 本发明产生的有益效果是:由于本发明使用接入标识一交换路由标识分离 Advantageous effects of the invention are produced: Since the present invention uses a switching route identifier identifies an access separated

映射机制,不但实现了移动自组织网络能够快速、有效的接入一体化网络,还能够有效支持移动节点在移动自组织网络内部的移动。 Mapping mechanism, not only to achieve a mobile ad-hoc network to quickly and efficiently access the integrated network, but also to effectively support mobile node in a mobile network from within the organization. 克服了MIPv4/MIPv6移动速率不够和NAT机制的可扩展性问题。 Overcome MIPv4 / MIPv6 mobile rate is not enough and NAT mechanisms scalability issues. 附图说明下面结合附图和实施例对本发明作进一步说明。 Is further illustrated below in conjunction with the accompanying drawings and embodiments of the present invention will. 图1为一体化网络的体系结构模型;图2为实施例一移动自组织网络接入一体化网络的系统示意图; 图3为实施例一中扩展后的AODVRREP消息才各式示意图; 图4为实施例四中固定节点发起通讯的网络拓朴图; 图5为实施例四中移动节点重新建立连接的网络拓朴图。 Figure 1 is an integrated network architecture model; FIG. 2 is a schematic system diagram of a mobile ad-hoc network access integrated network embodiment; FIG. 3 is a message according to a AODVRREP extended only kinds schematic embodiment; FIG. 4 is a Fourth Example embodiment fixed node initiates communications network topography; FIG. 5 is a mobile node according to a fourth embodiment of FIG re-establish network connection topology. 具体实施方式实施例一:本实施例是一种移动自组织网络接入一体化网络的系统的具体实施例,是一种建立在一体化网络系统基础上的移动自组网络系统。 DETAILED DESCRIPTION Embodiments of an embodiment: Example of the present embodiment is a mobile ad-hoc network access system specific embodiments of the integrated network, a mobile ad hoc network systems in an integrated network system based on the establishment. 所述的一体化网络系统是一种下一代互联网体系结构的解决方案,其所支持的接入标识与交换路由标识分离映射机制能够较好的解决移动自组网MANET的互联网接入问题。 The integrated network system is a next generation Internet architecture solution, it supports access identification and exchange routing identifier separation mapping mechanism can be a better solution for mobile Internet access problems from the MANET network. 一体化网络是一种支持多元化的网络和终端接入,保证信息交互的安全性和移动性,并有提供普适服务能力的网络体系结构。 Integrated network is a support network and a wide range of terminal access, to ensure the safety and mobility of information exchange, and have the ability to provide ubiquitous service network architecture. 如图1所示,在一体化网络模型中采用了接入标识与交换路由标识分离聚合映射理论(筒称接入标识解析映射理论),创建并引入了两个虚拟模块:虚拟接入模块和虚拟骨干模块;一个解析映射:接入标识解析映射。 As shown, the use of a model in an integrated network exchange identifier and an access route mapping identifier separation polymerization theory (known as the access cylindrical identity resolution mapping theory), and is introduced to create two virtual modules: the access module and the virtual virtual backbone module; a resolution mapping: access identity resolution mapping. 虚拟接入模块:该模块引入了接入标识作为终端接入的身份标识,每个终端都具有一个或多个全球唯一的接入标识。 Virtual Access Module: This module introduces the access ID as an access terminal identity, each terminal having one or more globally unique identifier access. 各种接入网络或终端(如互联网中 Various access networks or terminals (e.g., the Internet

的固定网络、移动网络和传感网络,电信网中的各种接入网络和终端等)以一种统一的方式接入,克服了传统信息网络中接入网络和接入终端单一的问题, 拓展了网络服务的范围。 Fixed networks, mobile networks and sensor networks, telecommunication networks and various access network terminals, etc.) to access a unified manner, to overcome the traditional networks the access network information and the access terminal single issue, expand the scope of network services. 另外,当各种接入网络或终端移动到其它位置时,终端的接入标识不需要改变,使得用户的连接不需要中断。 Further, when various access networks or terminals moved to another location, the access terminal does not need to change the identifier, such that the user need not be interrupted connection. 虚拟骨干模块:该模块引入了交换路由标识,用于虚拟骨干模块的广义交换路由和寻路。 Virtual backbone module: This module introduces exchange routing identification for generalized virtual backbone switching and routing module and wayfinding. 当数据包进入虚拟骨干模块传输时,源端接入交换路由器采用内部的交换路由标识替代接入标识进行转发,到达通信对端的接入交换路由器后,数据包的交换路由标识被置换为原来的接入标识。 When a packet enters the virtual backbone transmission module, the source access switch routers exchange routing alternative access identifier identifying the internal forwarding, after reaching the end of the communication access switch router, packet switching routing identifier is replaced by the original access identifier. 这样,当数据包在虚拟骨干模块上传输时,其他用户不可能通过截获虚拟骨干模块的信息分析用户的身份,保证了用户的隐私性;也不可能通过用户身份来截获他们的信息,保证了用户信息的安全性。 Thus, when a data packet transmission on the virtual backbone module, other users can not be intercepted by the virtual identity module analyzes the user's backbone, ensuring the privacy of users; it is impossible to intercept their information through the user's identity to ensure that the the security of user information. 接入标识解析映射:接入标识解析映射将多个交换路由标识映射到多个接入标识或者将多个接入标识映射到多个交换路由标识。 Access identifier resolution mapping: a plurality of access identification resolution mapping is mapped to a plurality of switching route identifier identifies an access identifier or a plurality of access route identifier mapped to the plurality of switching. 图2所示为本实施例的系统结构示意图。 The system structure of the present embodiment shown in the schematic example of FIG 2. 在本实施例中MANET通过一个或多个无线网关AP及接入交换路由器接入到一体化网络。 In the present embodiment, access to the integrated switching router MANET network via one or more wireless gateway and access AP. MANET内部节点通过AODV协议维护路由信息。 MANET internal node maintains routing information protocol AODV. 当节点在不同的MANET或固定子网之间移动时,由一体化网络对其进行移动性管理。 When a node moves between different subnets MANET or fixed, performed by the integrated network mobility management thereof. 图2所示的系统包含以下主要功能实体:•接入交换路由器(ASR, Access Switch Router) : ASR是MANET内部节点访问一体化网络核心网时的接入点(也可称为网关)。 The system shown in FIG 2 comprises the following main functional entities: • Access Switching Router (ASR, Access Switch Router): ASR is the integrated network access node MANET internal core network access points (also referred to as a gateway). ASR为MANET节点分配和维护接入一交换路由标识映射关系,并负责将数据包的源和目的由接入标识替换为交换路由标识(或由交换路由标识替换为接入标识)。 ASR MANET nodes is assigned a service access and exchange routing identifier mapping relationship, and for the source and destination of the data packet replaced by the access route identifier identifies the exchange (or identified by exchanging routing replaced access identifier). ASR同时执行AODV协议,为MANET内部节点提供移动性支持。 ASR AODV protocol performed simultaneously, to provide mobility support for the internal MANET node. •移动节点(MN, Mobile Node) : MANET内的移动节点拥有一个或多个无线接口,它使用接入标识来建立和维护路由信息。 • the mobile node (MN, Mobile Node): a mobile node in a MANET or more wireless interfaces have it access identifier used to establish and maintain routing information. MN通过路由响应(RREP, Route Reply)消息发现ASR。 MN ASR found by route response (RREP, Route Reply) message. MN在ASR列表中记录所有已经在其上完成注册的ASR。 MN records of all completed registration on which the ASR ASR in the list. 移动节点可以是手机或电脑或其他可以进行数字通讯的电子系统。 The mobile node may be a mobile phone or a computer or other digital electronic systems can communicate. •映射服务器(IMS, Identifiers Mapping Server):在整个一体化网络中存在多个映射服务器。 • map server (IMS, Identifiers Mapping Server): Mapping multiple servers throughout an integrated network. 一个映射服务器维护一定地理范围之内的所有接入一交换路由标识映射信息。 Server maintains a map of all access within a geographic range of an identification exchange routing information mapping. 映射服务器负责移动节点的宏移动管理和位置管理。 Mapping server is responsible for macro mobile node mobility management and location management. •认证中心(AC, Authentication Center):在整个一体化网络中存在多个认证中心。 • Authentication Center (AC, Authentication Center): there are multiple certification centers throughout integrated network. 每个认证中心维护一定地理范围之内的所有固定和移动终端的认证信息,负责对所有接入一体化网络的节点进行身份认证和授权。 Each certification center maintains all authentication information of fixed and mobile terminals within a geographic range, is responsible for authentication and authorization for access to the integration of all the nodes of the network. 本实施例所述的系统,包括至少两个具有至少一个无线接口的使用接入标识来建立和维护3各由信息的移动节点MN,所述MN与至少一个作为移动自组织网络访问一体化网络核心网的接入点并负责为移动自组织网络内部节点分配和维护接入一交换路由标识映射关系、并为移动自组织网络内部节点提供移动性支持的接入交换路由器ASR连接,所述ASR与至少一个用于维护移动节点的接入一交换路由标识的映射信息并负责移动节点的宏移动管理和位置管理的映射服务器IMS,所述的IMS与至少一个维护所有节点的认证信息负责对节点进行身份认证和授权的认证中心AC连接;除上述连接之外,所述的MN、 ASR、 IMS 、 AC之间以有线或无线的方式相互电连接组成系统。 The system described in the present embodiment, using the access identifier comprises at least two having at least one wireless interface to establish and maintain an ad hoc network to access network 3 are each integrated information by the mobile node MN, the MN and the at least one mobile as the core network and the access point is responsible for the mobile ad-hoc network and an internal node is assigned a service access exchange routing identifier mapping relationship, and to provide mobility support for mobile ad-hoc network access node internal switch router connected ASR, the ASR with access to at least a mobile node for maintaining a routing identifier mapping information exchange and the mobile node is responsible for macro mobility management and location management of the mapping server IMS, the IMS authentication information with at least one maintenance node is responsible for all the nodes for authentication and authorization of the authentication center AC is connected; in addition to the connection, the MN, ASR, IMS, AC between a wired or wireless system composed of electrically connected to each other. 实施例二:本实施例是一种移动自组织网络接入一体化网络的方法实施例,所述方法 Embodiment, the method described in the method of the present embodiment is a mobile ad-hoc network access integrated network: Example two

运行包括以下步骤:发现及建立路由的步骤A:接入交换路由器的发现以及MANET内部i?各由建立;MANET内部节点要与外部节点进行通信,首先必须发现接入交换路由器, 并以接入交换路由器作为一体化网络的接入点。 Operation comprising the steps of: establishing a route discovery and Step A:? Access routers exchange discovery and establishment of a MANET inside each i; MANET internal node to communicate with an external node, the exchange must first access router discovery, and to access the integrated switch routers as an access point network. 接入交换路由器的发现过程与到达通信对端的MANET内部路由建立过程同时进行。 Access routers exchange discovery process inside the landing MANET routing communication peer establishment procedure performed simultaneously. MANET内部节点与所有通信对端的通信连接均使用接入标识来建立。 MANET all internal node and peer communication connection was established using the access identification. 当一个移动节点移动时,它的接入标识始终保持不变。 When a mobile node moves, it remains the same access identification. 注册的步骤B:移动节点的注册过程;在与外部节点建立通信之前,MANET内部节点必须首先在接入交换路由器进行注册,以便网络对其进行认证并分配接入一交换路由标识映射关系。 Registered Step B: the registration process of the mobile node; prior to establishing communication with the external node, the MANET internal node must first be registered with the access switch routers to be authenticated and allocated a network access identifier mapping relationship of a route switching. 实施例三:本实施例为实施二的细化,是发现及建立路由的过程的细化。 Third Embodiment: This embodiment is a two refined embodiment, the thinning process is found and to establish the route. 其过程如下: Al:移动节点在自己的路由表中查找到达通信对端的路由,如果找到则向通信对端发生lt据,否则转A2。 The procedure is as follows: Al: find the mobile node in its routing table that the route of the communication terminal, if found lt occurs according to a communication peer, otherwise turn A2. A2:移动节点广播路由请求消息,请求能够到达通信对端的路由。 A2: the mobile node broadcasts a route request message, the request route can reach the correspondent node. A3:移动自组织网络内部的中间节点收到移动节点发送的路由请求消息后,在其路由表中查询,若没有找到通信对端的路由则继续广播路由请求消息,并转A4;否则,中间节点向移动节点发送路由响应消息,将T标志位填充O,并转A8。 A3: Mobile since the intermediate node within the organization network receives routing mobile node sends a request message, in its routing table in the query, if the communication route to the peer is not found then continue broadcasting the route request message and forwarding A4; otherwise, the intermediate node the mobile node sends a route response message, the bit stuffing flag T O, and turn A8. A4:接入交换路由器收到路由请求消息后,首先在其本地用户映射表中查找通信对端的接入一交换路由标识映射关系,若找到,则丢弃该路由请求消息, 不做任何处理,若没有找到,则在其通信对端映射表中查找通信对端的接入一交换路由标识映射关系,如果找到则转A6,否则,转A5。 A4: exchanging access router after receiving the routing request message, the first peer access communication lookup in its local user a mapping table to exchange routing identifier mapping relationship, if found, discards the route request message, without any treatment, if is not found, then the communication peer lookup mapping table of the communication access terminal identifier mapping relationship of a route switching, to find if the switch A6, otherwise, turn A5. A5:接入交换路由器向其所在域的映射服务器查询通信对端的接入一交换路由标识映射关系,如果查到,则将该映射关系存储到其通信对端映射表,并转A6。 A5: access switch router query domain mapping server communication to its end a switching access route identifier mapping relationship, if found, then the mapping relationship stored in the communication node mapping table, and transferred A6. 否则,丢弃该路由请求消息,不再做任何处理。 Otherwise, discard the route request message, not do any processing. A6:接入交换路由器向移动节点发送路由响应消息,如果移动节点已经在接入交换路由器上注册,则将T标志位填充1,否则将T标志位填充O。 A6: exchanging access router sends a route response message to the mobile node, if the mobile node has registered in the access routers exchange, then the bit stuffing flag T 1, otherwise filling bit flag T O. A7:中间节点收到接入交换路由器发送的路由响应消息后,在路由表中添加到通信对端的路由,将接入交换路由器加入其可选接入交换路由器列表,向移动节点转发路由响应消息。 A7: the intermediate node receiving the routing response sent by the access switch message router, the routing table to add a route to the communication terminal, the access router is exchanging optionally switching router access lists, routing forward response message to the mobile node . A8:移动节点收到路由响应消息后,在路由表中添加到通信对端的路由, 如果T标志位为1,将接入交换路由器加入其接入交换路由器列表,如果T标志位为0,将接入交换路由器加入其可选接入交换路由器列表。 A8: After the mobile node receives a route response message, the routing table to add a route to the communication terminal, if the T flag is set to 1, the access router is exchanging its access switch router list, if the T flag is set to 0, the access switching router optionally added access switch router list. 本实施例对ADOV协议RREP消息进行了扩展,使用了一个新的标志位(T 标志位)来触发MANET内部节点开始认证。 This embodiment ADOV RREP message protocol is extended, using a new flag bit (T bit flag) to trigger the start of the internal node MANET authentication. 当MANET内部的通信发起方收到T标志位是0的RREP消息后,则需要向RREP消息的发送者(即ASR)发送认证请求消息。 When the internal communication initiator receives the MANET T RREP message flag is 0, the RREP message to the sender (i.e. ASR) sending an authentication request message is required. 当注册过程结束后,源节点可以和MANET外部节点进行通信。 When the end of the registration process, the source node may communicate with nodes outside the MANET. 图3为扩展后的AODVRREP消息的示意图。 3 is a schematic view of the extended AODVRREP message. 实施例四:本实施例为实施例二或三的细化,是注册过程的细化。 Fourth Embodiment: Example of the present embodiment is a refinement of two or three of the embodiment, the registration process of refinement. 其过程如下: Bl:移动节点收到'I,标志位为0的路由响应消息后,直接向接入交换路由器发送认证请求消息,消息中携带自己的接入标识。 The procedure is as follows: Bl: the mobile node receives' I, flag bit 0 of the routing response message, directly to the access switch router sends an authentication request message, carried in its access message identifier. B2:接入交换路由器收到移动节点发送的认证请求消息后,向认证中心发送认i正查询消息。 B2: exchanging access router the mobile node sends the received authentication request message to the authentication center sends a query message identified i n. B3:当接入交换路由器收到认证返回的认证响应消息后,如果认证失败, 则不再做任何处理,如果认证通过,则为移动节点分配交换路由标识,将接入一交换路由标识映射关系存储到本地用户映射表,并将该映射关系汇报给映射服务器。 B3: When switching the access router receives the authentication response message returned by the authentication, if the authentication fails, do not any processing, if the authentication, the mobile node was assigned exchange routing identifier, the access ID mapping a route exchange mapping table stored in the local user, and reporting the mapping relationship to the mapping server. B4:接入交换路由器向发送移动节点发送认证通过消息。 B4: the access switch to the transmitting router the mobile node authentication message. B5:移动节点收到认证通过消息后,将接入交换路由器加入其接入交换路由器列表,注册过程完成,可以和通信对端进行通信。 B5: The mobile node after receiving the authentication message, the access router is exchanging its access switch router list, the registration process is completed, and can communicate with a communication peer. 建立连接通常有两种情况, 一种是在节点固定情况下并保持这种固定状态, 另一种情况是节点在通讯过程中移动要重新建立连接的情况。 Establish a connection there are two cases, one is fixed in the node where this fixed and held state and a case where the mobile node is to re-establish connections in the case of communication process. 下面举例说明这两种情况。 The following examples illustrate these two cases. 其网络拓朴图如图4、 5所示,首先i殳主动发起通讯的节点为MNA, MNA希望最终接通的节点为MNB, MNA在寻找MNu的过程中通过的中间节点为MNC, MNA发起通讯是首先找到的路由器为ARA,与MNb、 MNc連接的路由器分別是ARb、 ARc。 Its network topology shown in Figure 4, 5, first i Shu initiate communication node as MNA, MNA desired final node the MNB is turned, the intermediate node MNA MNu looking through the process of the MNC, MNA initiated router communication is the first find of ARA, routers and MNb, mNc connections are ARb, ARc. 图4为固定节点发起通讯的网络拓朴图。 Figure 4 initiates communication network topographies of fixed nodes. 位于MANET内的MNA主动发起通信,在经过^^由请求、注册等过程后,最终与MNb成功建立通信連接。 Located within the MANET MNA initiate communication, after the request ^^, registration process, eventually MNb successfully established communication connection. 步骤一ASR发现及MANET内的路由建立过程:步骤1、 MNA准备访问MNB,其首先在自己维护的路由表中查找到MNB 的路由,但是没有找到。 Step one ASR discovery and routing establishment process in MANET: Step 1, MNA ready access MNB, it first looks for a route to the MNB in ​​their maintenance of the routing table, but did not find. 步骤2、 MNA广播路由请求RREQ消息,请求能够到达MNB的路由。 Step 2, MNA broadcasts a route request RREQ message, the request can reach the route MNB. 步骤3、 MNc收到MNA发送的RREQ消息后,在其路由表中查询,没有找到MNB的路由。 Step 3, the MNA MNc receives the RREQ message is sent, the query in its routing table, the route is not found MNB. MNC继续广播RREQ消息。 MNC continues to broadcast RREQ message. 步骤4、 ARA收到RREQ消息后,首先在其本地用户映射表中查找MNB的接入一交换路由标识映射关系,在没有找到后,在其通信对端映射表中查找MNB 的接入一交换路由标识映射关系,如果找到则转步骤6,否则,转步骤5。 Step 4, after the ARA receives the RREQ message, MNB first looks in its local access to the user a mapping table to exchange routing identifier mapping relationship, and look at the communication peer MNB mapping table is not found after a switching access routing ID mapping, and if found then go to step 6, otherwise, go to step 5. 步骤5、 ARA向其所在域的IMS查询MNB的接入一交换路由标识映射关系, 如果查到,则将该映射关系存储到其CMT,并转步骤6。 Step 5, ARA IMS domain to which the query access a MNB exchange routing identifier mapping relationship, if found, then the mapping relationship to its storage CMT, and proceed to step 6. 否则,丟弃该RREQ 消息,不再做任何处理。 Otherwise, discard the RREQ message, no longer do any processing. 步骤6、 ARa向mna发送路由应答RREP消息。 Step 6, ARa route reply RREP message to the sending mna. 如果MNA已经在AR八上注册,则将T标志位填充l,否则将T标志位填充O。 If MNA already registered on the AR eight will be filled with flag T l, otherwise it will fill flag T O. 步骤7、 MNc收到ARA发送的RREP消息后,在路由表中添加到MNB的路由,下一跳为ARA;将ARa加入其可逸ASR列表;向mna转发该RREP消息。 After step 7, MNc ARA received RREP message is sent, added to the routing table to route MNB next hop to ARA; ARa was added to a list which may ASR Yi; forwards the RREP message to the mna. 步骤8、 MNA收到RREP消息后,在路由表中添加到MNb的路由,下一跳为MNC;如果T标志位为1,将ARa加入其ASR列表;如果'I,标志位为0,将ARa加入其可逸ASR列表。 Step 8, the MNA received RREP message, the routing table to add the MNb route, the next hop is the MNC; if the T flag is 1, it was added to ARa ASR listing; if 'I, the flag bit is 0, which may be added ARa Yi ASR list. 步骤二移动节点的注册过程:步骤9、如果RREP消息'I,标志位为0, MNa向ARA发送认证请求消息, 消息中携带自己的接入标识。 Step Two mobile node registration procedure: Step 9, if the RREP message 'I, the flag bit is 0, MNa sends an authentication request message to ARA, message carries its access identity. 步骤10、 ARa收到mna发送的iU正请求消息后,向iU正中心发送i人证查询消息。 Step 10, ARa iU MNa sent after receipt of a positive request message, sending a query message to witnesses iU i n the center. 步骤ll、当ARa收到AC发送的认证响应消息后,如果认证失败,则不再做任何处理;如果认证通过,则为mna分配交换路由标识,并将<接入标识, 交换路由标识>映射关系存储到本地用户映射表。 Step ll, when the AC ARa receiving an authentication response message sent, if authentication fails, do not any processing; If the authentication, switching and routing identifier was assigned mna, and <access identifier, exchange routing identifier> Mapping relationship is stored in the local user mapping table.

步骤12 、 ARA向发送MNA认证通过消息。 Step 12, ARA MNA transmits authentication messages. 步骤13、 mna收到认证通过消息后,将ARa加入其ASR列表,开始和mnb进行通信。 Step 13, mna authentication after receiving the message, the list of ASR ARa added thereto, and starts communication mnb. 下面为移动节点重新建立连"t矣的网络拓朴图。其网络拓朴图如图5所示。 MNA在其所处的MANET内进行了移动,并重新建立了到MNB的路由,恢复了通信连4妻。步骤1、 MNa栓測到了自己与MNc的链路中断,所以发送新的RREQ消息请求到MNb的^各由。步骤2、 MNd收到MNA发送的RREQ消息后,因为MN。的路由表中没有到MNB的if各由,所以继续向相邻节点发送RREQ消息。步骤3、 MNc收到MNA发送的RREQ消息后,因为MNc的路由表中有到MNB的路由,所以MNC向MNA回复RREP消息,其中'I,标志位填充为0。步骤4、 MNd收到MNc发送的RREP消息后,在其路由表中添加到MNB 的路由,并将RREP消息转发给MNA。步骤5、 MNA收到RREP消息后,在其路由表中添加到MNb的路由,并恢复向MNB发送数据。步骤6、 ARA收到MNA发送的数据后,因其本地用户映射表中保存有MNA 的接入一交换路由标识映射关系,所以经过标识替 The following is a mobile node to reestablish the connection "t carry the network topology of FIG. Its network topography shown in FIG. 5. MNA has moved within its MANET is located, and to re-establish routing of MNB, restored 4 wife communication link. step 1, MNa pin and measured their MNc link break, it sends a new request to the RREQ message by the MNb of ^ each. step 2, MNd receives the RREQ message sent after the MNA, because the MN. routing table if no to each of the MNB, it continues to transmit the RREQ message to the adjacent nodes. step 3, MNc MNA after receiving the RREQ message transmitted as MNC routing table to the routing of MNB, MNC to it MNA reply RREP message, where 'I, filling flag to 0. step 4, the received RREP message MNc MNd transmitted, MNB added to the route in its routing table, and forwards the RREP message to the MNA. step 5, after MNA RREP message is received, it is added in the routing table to route the MNb, and resume sending data to MNB. step 6, after receiving the data ARA MNA sent its local mapping table is stored in the user access MNA a switching and routing identifier mapping relationship, so after for identification 换后,向一体化网络内部转发该数据。实施例五:本实施例是实施例四的替代步骤。是步骤B1:移动节点收到T标志位为0 的路由响应消息后,向接入交换路由器发送认证请求消息,消息中携带自己的 After replacing the internal integrated network forwards data according to a fifth embodiment: This step is an alternative embodiment of the fourth embodiment is Step Bl: After the mobile node receives the routing flag is 0 T a response message to the access switch the router sends an authentication request message, the message carries its own

接入标识,这一步骤的另一种实现步骤。 Access identifier, a further step to achieve this step. 其运行过程是:Bl-l:移动节点收到T标志位为0的^各由响应消息后,直接向通信对端发送用户数据;Bl-2:接入交换路由器收到移动节点发送的用户数据后,检测到移动节点尚未在接入交换路由器上进行注册,接入交换路由器向移动节点发送接入标识未认证的通告消息;Bl-3:移动节点收到接入标识未认证的通告消息后,向接入交换路由器发送认证请求消息,消息中携带自己的接入标识。 Its operation is: Bl-l: mobile node receives the T flag is 0 ^ each, user data is transmitted directly to the response message by the communication peer; Bl-2: exchanging user access router the mobile node receives transmission after the data, detects that the mobile node has not been registered on the exchange of the access router, the access router advertisement message to the mobile switching node transmits the access ID is not authenticated; Bl-3: mobile node receives access identifier advertisement message unauthenticated after switching to the access router sends an authentication request message, which carries its own access identifier.

Claims (5)

  1. 1.一种移动自组织网络接入一体化网络的系统,其特征在于,包括至少两个具有至少一个无线接口的使用接入标识来建立和维护路由信息的移动节点MN,所述MN与至少一个作为移动自组织网络访问一体化网络核心网的接入点并负责为移动自组织网络内部节点分配和维护接入-交换路由标识映射关系、并为移动自组织网络内部节点提供移动性支持的接入交换路由器ASR连接,所述ASR与至少一个用于维护移动节点的接入-交换路由标识的映射信息并负责移动节点的宏移动管理和位置管理的映射服务器IMS,所述的IMS与至少一个维护所有节点的认证信息负责对节点进行身份认证和授权的认证中心AC连接;除上述连接之外,所述的MN、ASR、IMS、AC之间以有线或无线的方式相互电连接组成系统。 A mobile network from the integrated network access system tissue, characterized by comprising at least two access identifier used to establish and maintain routing information of the mobile node having at least one wireless interface MN, the MN and at least as a mobile ad-hoc network access point integrated network access and core network for mobile ad-hoc network is responsible for internal node allocation and maintenance of access - to exchange routing ID mapping, and provide mobility support for mobile ad-hoc network of internal nodes ASR router connected to the access switch, the ASR for maintaining access to at least one mobile node - mapping server IMS IMS macro mobility management and location management of the exchange of the mapping information and is responsible for routing identifier of the mobile node, with the at least a maintenance information for all nodes in the authentication node responsible for authentication and authorization of the authentication center AC is connected; in addition to the connection, the MN, ASR, IMS, AC between a wired or wireless manner electrically interconnected system consisting of .
  2. 2. —种移动自组织网络接入一体化网络的方法包括:移动节点MN、接入交换路由器ASR、映射服务器IMS、认证中心AC,其特征在于所述方法的步骤:发现及建立路由的步骤A:接入交换路由器的发现以及移动自组织网络内部路由的建立;注册的步骤B:移动节点的注册过程。 2. - Method species MANET integrated access network comprising: a mobile node MN, the access switch router ASR, mapping server IMS, the authentication center AC, characterized in that the steps of the method: the step of establishing a route discovery and a: the access routers exchange discovery and establishment of an ad hoc network internal routing mobile; registered step B: the mobile node registration process.
  3. 3. 根据权利要求2所述的一种移动自组织网络接入一体化网络方法,其特征在于所述的发现及建立路由的步骤中的子步骤:子步骤A1:移动节点在自己的路由表中查找到达通信对端的路由,如果找到则向通信对端发送数据,否则转子步骤A2;子步骤A2:移动节点广播路由请求消息,请求能够到达通信对端的路由; 子步骤A3:移动自组织网络内部的中间节点收到移动节点发送的路由请求消息后,在其路由表中查询,若没有找到通信对端的路由则继续广播路由请求消息,并转子步骤A4;否则,中间节点向移动节点发送3各由响应消息,将T标志位填充0,并转子步骤A8;子步骤A4:接入交换路由器收到路由请求消息后,首先在其本地用户映射表中查找通信对端的接入一交换路由标识映射关系,若找到,则丢弃该路由请求消息,不做任何处理,若没有找到,则在其通信对端 3. A mobile according to claim 2 integrated self-organizing network access network, characterized in that said sub-step and the step of establishing a route found in: sub-step A1: the mobile node in its routing table find reach the communication route to the peer if it finds the transmission data to the communication peer, otherwise the rotor step A2; sub-step A2: the mobile node broadcasts a route request message, a request can be sent to the communication route to the peer; sub-step A3: MANET an intermediate in the node receiving the routing mobile node sends a request message, the query in its routing table, when the communication route to the peer is not found then continue broadcasting the route request message, and the rotor step A4; otherwise, the intermediate node sends 3 to the mobile node each of the response message, the bit stuffing flag T 0, and the rotor step the A8; sub-step A4: after the access routers exchange routing request message is received, find the first communication access to the end user in its mapping table in a local exchange routing identifier mapping relationship, if found, discards the route request message, without any treatment, if not found, then the communication peer 射表中查找通信对端的接入一交换路由标识映射关系,如果找到则转子步骤A6,否则,转子步骤A5;子步骤A5:接入交换路由器向其所在域的映射服务器查询通信对端的接入一交换路由标识映射关系,如果查到,则将该映射关系存储到其通信对端映射表,并转子步骤A6。 Radio communication access lookup table a peer exchange routing identifier mapping relationship, if found, the rotor step A6, otherwise, step A5 rotor; sub-step A5: exchanging access router maps an access server of the domain to which the query communication peer a switching and routing identifier mapping relationship, if found, then the mapping relationship is stored in the mapping table which peer communication, and the rotor step A6. 否则,丢弃该路由请求消息,不再做任何处理;子步骤A6:接入交换路由器向移动节点发送路由响应消息,如果移动节点已经在接入交换路由器上注册,则将T标志位填充l,否则将T标志位填充O;子步骤A7:中间节点收到接入交换路由器发送的路由响应消息后,在路由表中添加到通信对端的路由,将接入交换路由器加入其可选接入交换路由器列表,向移动节点转发路由响应消息;子步骤A8:移动节点收到路由响应消息后,在路由表中添加到通信对端的路由,如果T标志位为1,将接入交换路由器加入其接入交换路由器列表,如果T标志位为0,将接入交换路由器加入其可选接入交换路由器列表。 Otherwise, discard the route request message, no longer do any processing; sub-step A6: switching the access router sends a route response message to the mobile node, if the mobile router registered already in the access switching node, the flag will be filled l T, otherwise, the bit stuffing flag T O; sub-step A7: after receiving the routing intermediate node access switch router response message sent, added to the end of the communication route in the routing table, the router is the access switch which optionally access switching router list, a forwarding route to the mobile node a response message; sub-step A8: after the mobile node receives a route response message, the routing table to add a route to the communication terminal, if the T flag is set to 1, the access router into its exchange contact the switch router list, if the T flag is 0, the access router is exchanging optionally switched access router list.
  4. 4.根据权利要求2或3所述的一种移动自组织网络接入一体化网络方法, 其特征在于所述的注册的步骤中的子步骤:子步骤B1:移动节点收到T标志位为0的路由响应消息后,直接向接入交换路由器发送认证请求消息,消息中携带自己的接入标识;子步骤B2:接入交换路由器收到移动节点发送的认证请求消息后,向认证中心发送认证查询消息;子步骤B3:当接入交换路由器收到认证返回的认证响应消息后,如果认证失败,则不再做任何处理,如果认证通过,则为移动节点分配交换路由标识, 将接入一交换路由标识映射关系存储到本地用户映射表,并将该映射关系汇报给映射服务器;子步骤B4:接入交换路由器向发送移动节点发送认证通过消息;子步骤B5:移动节点收到认证通过消息后,将接入交换路由器加入其接入交换路由器列表,注册过程完成,可以和通信对 4. A mobile ad hoc network or an access network integration method according to claim 3, wherein the step of registering the sub-steps of: a sub-step B1: the mobile node receives a flag bit is T 0 the route response message, a switch router sends an authentication message directly to the access request, the access message carries its own identifier; sub-step B2: after switching router receives the access authentication request message sent by the mobile node sends to the authentication center authentication query message; sub-step B3: when the access switch router receiving an authentication response message returned by the authentication, if the authentication fails, do not any processing, if the authentication, the mobile node was assigned exchange routing identifier, the access a switching and routing identifier mapping relationship mapping table stored in the local user, and reporting the mapping relationship to server mapping; sub-step B4: access switch router to the transmitting mobile node authentication message; sub-step B5: receiving an authentication by the mobile node after the message, the access router is exchanging its access switch router list, the registration process is complete, and the communication peer 进行通信。 Communicate.
  5. 5.才艮据权利要求4所述的一种移动自组织网络接入一体化网络方法,其特征在于所述的注册的步骤中的子步骤B1中的可釆用以下分步骤替代:分步骤B1-1:移动节点收到T标志位为0的路由响应消息后,直接向通信对端发送用户数据;分步骤Bl-2:接入交换路由器收到移动节点发送的用户数据后,4企测到移动节点尚未在接入交换路由器上进行注册,接入交换路由器向移动节点发送接入标识未认证的通告消息;分步骤Bl-3:移动节点收到接入标识未认证的通告消息后,向接入交换路由器发送认证请求消息,消息中携带自己的接入标识。 5. It was a mobile Gen claim 4, wherein the ad-hoc network access method for an integrated network, characterized in that the sub-step of step B1 registered in the following sub-steps may preclude the use of alternative: substeps B1-1: T flag mobile node receives the routing response message is 0, the user transmits data to the communication terminal directly; substep Bl-2: an access router after the exchange receives the user data transmitted from the mobile node, half 4 after the mobile node receives the access ID is not authenticated advertisement message: substep Bl-3; measured to the mobile node has not been registered on the exchange in the access router, the access router sends access identifier exchange unauthenticated advertisement message to the mobile node , switching router sends an authentication message to the access request, the access message carries its own identification.
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