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    • 7. 发明授权
    • System and method for providing an addressing and proxy scheme for facilitating mobility of wireless nodes between wired access points on a core network of a communications network
    • 用于提供寻址和代理方案的系统和方法,用于促进无线节点在通信网络的核心网络上的有线接入点之间的移动性
    • US07349380B2
    • 2008-03-25
    • US09929032
    • 2001-08-15
    • Charles R. Barker, Jr.Robin U. Roberts
    • Charles R. Barker, Jr.Robin U. Roberts
    • H04J3/24
    • H04W8/26H04L29/12009H04L29/12018H04L45/00H04L61/10H04W36/08H04W80/00H04W80/04
    • A communications network which is capable of effectively and efficiently handling mobility of wireless user terminals between access point nodes of a packet-switched network with minimal overhead and packet loss, and a method for using the same. The communications network employs a packet-switched core network and a plurality of access points coupled to the core network. Each access point is adapted to provide any user terminal with wireless communications access to the core network when that user terminal becomes affiliated with that access point. Each access point, as well as other nodes on the network such as a media server, DNS server and an IP gateway router, includes an address resolution cache which is adapted to store information representative of affiliation between the user terminals and the access points of the network. Each access point is adapted to deliver to the other access points a message indicating that a user terminal has changed its affiliation from another access point to that access point, to enable the other access points and core LAN nodes to update their respective address resolution cache based on the message. Preferably, an access point is adapted to issue the message over the core network as an address resolution request for an address, in particular, an IP protocol address, of the user terminal which has changed its affiliation to that access point.
    • 能够以最小的开销和分组丢失能够有效且高效地处理分组交换网络的接入点节点之间的无线用户终端的移动性的通信网络及其使用方法。 通信网络采用分组交换核心网络和耦合到核心网络的多个接入点。 每个接入点适用于当该用户终端与该接入点成为关联时,为任何用户终端提供对核心网络的无线通信接入。 每个接入点以及诸如媒体服务器,DNS服务器和IP网关路由器的网络上的其他节点包括地址解析缓存,其适于存储表示用户终端与用户终端的接入点之间的联系的信息 网络。 每个接入点适于向其他接入点递送指示用户终端已经将其隶属关系从另一接入点改变到该接入点的消息,以使得其他接入点和核心LAN节点更新其各自的地址解析缓存基于 在消息上。 优选地,接入点适于通过核心网络发布消息,作为对已经改变其与该接入点的隶属关系的用户终端的地址,特别是IP协议地址的地址解析请求。
    • 9. 发明授权
    • System and method for enabling a radio node to selectably function as a router in a wireless communications network
    • 一种用于使无线电节点可选地用作无线通信网络中的路由器的系统和方法
    • US07613458B2
    • 2009-11-03
    • US09939624
    • 2001-08-28
    • Robin U. Roberts
    • Robin U. Roberts
    • H04W4/00H04W40/00H04L12/28H04L12/56
    • H04L45/00H04W84/18H04W88/02H04W88/14
    • A system and method for enabling a mobile user terminal in an ad-hoc packet-switched wireless communications network to selectably operate as a router for other mobile user terminals in the network based on certain criteria. The user terminal comprises a transceiver and a controller. The transceiver is adapted to transmit wireless communications data, such as packetized data, addressed to a destination user terminal, to at least one other user terminal for routing by that other user terminal to the destination user terminal. The controller is adapted to prevent the transceiver from transmitting the wireless communications data to that particular other user terminal based on routing data pertaining to an ability of the other user terminal to route said wireless communications data to the destination user terminal. The user terminal further includes a memory for storing the routing data received from the other user terminal, for example, in the form of routing table information, or from the wireless communications network.
    • 基于某些标准,用于使自组织分组交换无线通信网络中的移动用户终端能够可选地操作为网络中的其他移动用户终端的路由器的系统和方法。 用户终端包括收发机和控制器。 收发器适于将寻址到目的地用户终端的诸如分组数据的无线通信数据发送到至少一个其他用户终端,用于由该另一用户终端路由到目的用户终端。 所述控制器适于防止所述收发器基于与所述另一用户终端将所述无线通信数据路由到所述目的地用户终端的能力有关的路由数据来向所述特定的其他用户终端发送所述无线通信数据。 用户终端还包括用于存储从其他用户终端接收的路由数据的存储器,例如以路由表信息的形式,或者来自无线通信网络。