Mobility management in communication networks
    1.
    发明授权
    Mobility management in communication networks 有权
    通信网络中的移动性管理

    公开(公告)号:US08369876B2

    公开(公告)日:2013-02-05

    申请号:US12302262

    申请日:2007-05-15

    IPC分类号: H04W24/00

    CPC分类号: H04W8/08 H04W4/08 H04W60/04

    摘要: The invention relates to a method for tracking locations of mobile terminals in a communication network. Further, the invention relates to a communication network and apparatuses therein capable of performing individual steps of the method according to different embodiments of the invention. To decrease the signaling load imposed by mobility related signaling the invention suggests to group mobile terminals in so called mobility groups and to reduce the signaling overhead by performing a location update on a per-mobility group basis. In one exemplary embodiment of the invention this is realized by only one of the mobile terminals in a mobility group sending a group location update on behalf of the group to trigger the location update for the mobility group. Alternatively, in another embodiment of the invention, a network operator trusted or controlled entity sends a group location update on behalf of the group to trigger the location update for the mobility group.

    摘要翻译: 本发明涉及用于跟踪通信网络中的移动终端的位置的方法。 此外,本发明涉及其中能够执行根据本发明的不同实施例的方法的各个步骤的通信网络及其装置。 为了减少由移动性相关的信令施加的信令负载,本发明建议将移动终端组合在所谓的移动组中,并且通过基于每个移动组进行位置更新来减少信令开销。 在本发明的一个示例性实施例中,这仅由移动组中的一个移动终端通过代表组发送组位置更新来触发移动组的位置更新来实现。 或者,在本发明的另一个实施例中,网络运营商信任或受控实体代表组发送组位置更新,以触发移动组的位置更新。

    Method and system for fast handovers using dynamic router advertisements
    2.
    发明授权
    Method and system for fast handovers using dynamic router advertisements 有权
    使用动态路由器广告进行快速切换的方法和系统

    公开(公告)号:US08175057B2

    公开(公告)日:2012-05-08

    申请号:US12281758

    申请日:2007-03-01

    IPC分类号: H04W4/00

    摘要: The invention relates to a method for managing the movement of a mobile node from a first router in a first network to a second router in a second network, wherein the mobile node communicates with a corresponding node. In order to enable seamless communication between the mobile node and the corresponding node, the second router is dynamically configured by the first router to transmit a router advertisement message to the mobile node, the router advertisement message comprising a subnet prefix of an IP address of the mobile node, said subnet prefix belonging to the first network. A layer 3 link change as observed by the mobile node can be postponed and a default router of the mobile node can be changed to the new access router immediately after the layer 2 handover, thus enabling very fast handovers without requiring modifications to the mobile node implementations.

    摘要翻译: 本发明涉及一种用于管理移动节点从第一网络中的第一路由器移动到第二网络中的第二路由器的方法,其中移动节点与对应节点通信。 为了实现移动节点与相应节点之间的无缝通信,第二路由器由第一路由器动态地配置以向移动节点发送路由器通告消息,路由器通告消息包括IP地址的子网前缀 移动节点,所述子网前缀属于第一网络。 可以推迟由移动节点观察到的层3链路改变,并且可以在层2切换之后立即将移动节点的默认路由器改变为新的接入路由器,从而实现非常快的切换,而不需要修改移动节点实现 。

    DETECTION OF THE MOBILITY MANAGEMENT FUNCTION USED BY THE NETWORK
    3.
    发明申请
    DETECTION OF THE MOBILITY MANAGEMENT FUNCTION USED BY THE NETWORK 审中-公开
    检测网络使用的移动性管理功能

    公开(公告)号:US20110238822A1

    公开(公告)日:2011-09-29

    申请号:US13060013

    申请日:2009-07-03

    IPC分类号: G06F15/173

    CPC分类号: H04W80/045

    摘要: The invention relates to a method and mobile node capable of detecting whether or not the network to which the mobile node is attached is using a network-based mobility management function for the mobile node or not. In order to enable a mobile node to detect whether the network is using a network-based mobility function for the mobile node, upon establishment of a PDN connection or IP session, the mobile node sends a probe message to the network destined to itself and determines based on the modifications of the probe message returned to the mobile node whether the network is using a network-based mobility function for the mobile node or not.

    摘要翻译: 本发明涉及能够检测移动节点所连接的网络是否正在使用移动节点的基于网络的移动性管理功能的方法和移动节点。 为了使移动节点能够检测网络是否正在使用基于移动节点的基于网络的移动性功能,在建立PDN连接或IP会话时,移动节点向发往自己的网络发送探测消息,并确定 基于返回到移动节点的探测消息的修改,无论网络是否正在为移动节点使用基于网络的移动性功能。

    HOME AGENT DISCOVERY UPON CHANGING THE MOBILITY MANAGEMENT SCHEME
    4.
    发明申请
    HOME AGENT DISCOVERY UPON CHANGING THE MOBILITY MANAGEMENT SCHEME 审中-公开
    家庭代理发现改变移动管理方案

    公开(公告)号:US20110026435A1

    公开(公告)日:2011-02-03

    申请号:US12867876

    申请日:2009-02-13

    IPC分类号: H04L12/28

    摘要: The invention relates to a method for discovering a home agent serving a mobile node upon the mobile node changing its mobility management scheme in a packet-switched network and the implementation of such method in a mobile node or home agent. In order to propose a home agent discover scheme that maintains session continuity in a seamless manner upon a mobile node changing its mobility management scheme, a mobile node comprises information on its location prior to changing the mobility management scheme to one of the first signaling messages transmitted upon changing the mobility management scheme (home agent discovery message). The receiving node uses this information to identify the home agent serving the mobile node or to provide a hint to the home agent where the mobile node is registered in a response message to the mobile node. This approach may also be used for path optimization when a mobile node moves from a trusted to an un-trusted access network.

    摘要翻译: 本发明涉及一种用于在移动节点在分组交换网络中改变其移动性管理方案时发现为移动节点服务的归属代理的方法,以及在移动节点或归属代理中实现这种方法。 为了提出在移动节点改变其移动性管理方案时以无缝方式保持会话连续性的归属代理发现方案,移动节点在将移动性管理方案改变为发送的第一信令消息之一之前包括关于其位置的信息 在改变移动性管理方案(归属代理发现消息)时。 接收节点使用该信息来识别为移动节点提供服务的归属代理,或者向移动节点在移动节点的响应消息中注册的归属代理提供提示。 当移动节点从受信任的接入网络移动到不可信的接入网络时,该方法也可用于路径优化。

    Optimized Reverse Tunnelling for Packet Switched Mobile Communication Systems
    5.
    发明申请
    Optimized Reverse Tunnelling for Packet Switched Mobile Communication Systems 有权
    分组交换移动通信系统的优化反向隧道

    公开(公告)号:US20080198805A1

    公开(公告)日:2008-08-21

    申请号:US11993962

    申请日:2006-04-28

    IPC分类号: H04Q7/00

    摘要: A method and a server acting as a Home Agent are provided for packet switched data transmission between a first mobile node and a correspondent mobile node in a mobile communication system comprising a plurality of mobile networks. Each of the first mobile node and the correspondent mobile node are allocated to respective home networks, and a network server is provided as a home agent to each mobile node, respectively. Then, data packets are routed from the first mobile node to the correspondent mobile node, over a first data tunnel from the first mobile node to any first one of the home agents and over a second data tunnel from said first one of the home agents to the correspondent mobile node without passing the respective other home agent.

    摘要翻译: 提供了充当归属代理的方法和服务器,用于包括多个移动网络的移动通信系统中的第一移动节点与通信移动节点之间的分组交换数据传输。 第一移动节点和通信移动节点中的每一个被分配给相应的归属网络,并且网络服务器分别作为归属代理提供给每个移动节点。 然后,数据分组通过第一数据隧道从第一移动节点路由到对应的移动节点,从第一移动节点到归属代理中的任何第一个,以及从第一个归属代理到第二数据隧道的第二数据隧道 通信移动节点,而不通过相应的其他归属代理。

    Route optimization with location privacy support
    6.
    发明授权
    Route optimization with location privacy support 有权
    路由优化与位置隐私支持

    公开(公告)号:US08724553B2

    公开(公告)日:2014-05-13

    申请号:US13565498

    申请日:2012-08-02

    IPC分类号: H04W4/00

    摘要: The invention relates to a method for route optimisation of packet switched data transmissions between a first mobile node and a second mobile node in a mobile communication system comprising a plurality of access networks. The method comprises the step of transmitting return routability protocol packets and data packets. The return routability protocol packets and data packets are analysed, and at least part of an address comprised in headers of the return routability protocol packets and data packets is removed.

    摘要翻译: 本发明涉及一种包括多个接入网络的移动通信系统中的第一移动节点与第二移动节点之间的分组交换数据传输的路由优化的方法。 该方法包括发送返回路由协议报文和数据报文的步骤。 分析返回路由协议分组和数据分组,并且去除包括在返回可路由协议分组和数据分组的报头中的地址的至少一部分。

    Access-network to core-network trust relationship detection for a mobile node
    7.
    发明授权
    Access-network to core-network trust relationship detection for a mobile node 有权
    接入网到移动节点的核心网信任关系检测

    公开(公告)号:US08688970B2

    公开(公告)日:2014-04-01

    申请号:US12665006

    申请日:2008-06-12

    IPC分类号: H04L29/06

    摘要: The invention provides a method for trust relationship detection between a core and access network for a user equipment. The gist is that a security tunnel establishment procedure is used so one entity, be it part of the core network or be it the user equipment itself, is provided with information to determine whether the access network is trusted or untrusted. The information may comprise a first IP address/prefix, which is initially assigned to the user equipment, upon attaching to the access network. The necessary information may further comprise a second IP address/prefix, which is an address/prefix that is allocated at a trusted entity of the core network. Depending which entity determines the trust relationship of the access network, it might be necessary to transmit either the first IP address/prefix or the second IP address/prefix or the first and the second IP address/prefix using the security tunnel establishment procedure.

    摘要翻译: 本发明提供了一种用于用户设备的核心和接入网络之间的信任关系检测的方法。 要点是使用安全隧道建立过程,因此一个实体(作为核心网络的一部分,或者是用户设备本身)被提供有用于确定接入网络是可信任还是不受信任的信息。 信息可以包括在附接到接入网络时最初分配给用户设备的第一IP地址/前缀。 必要的信息还可以包括第二IP地址/前缀,其是在核心网络的可信实体处分配的地址/前缀。 根据哪个实体确定接入网络的信任关系,可能需要使用安全隧道建立过程来发送第一IP地址/前缀或第二IP地址/前缀或第一和第二IP地址/前缀。

    ROUTE OPTIMIZATION WITH LOCATION PRIVACY SUPPORT
    8.
    发明申请
    ROUTE OPTIMIZATION WITH LOCATION PRIVACY SUPPORT 有权
    路由优化与位置隐私支持

    公开(公告)号:US20120297186A1

    公开(公告)日:2012-11-22

    申请号:US13565498

    申请日:2012-08-02

    IPC分类号: H04W40/02 H04W12/06

    摘要: The invention relates to a method for route optimisation of packet switched data transmissions between a first mobile node and a second mobile node in a mobile communication system comprising a plurality of access networks. The method comprises the step of transmitting return routability protocol packets and data packets. The return routability protocol packets and data packets are analysed, and at least part of an address comprised in headers of the return routability protocol packets and data packets is removed.

    摘要翻译: 本发明涉及一种包括多个接入网络的移动通信系统中的第一移动节点与第二移动节点之间的分组交换数据传输的路由优化的方法。 该方法包括发送返回路由协议报文和数据报文的步骤。 分析返回路由协议分组和数据分组,并且去除包括在返回路由协议分组和数据分组的报头中的地址的至少一部分。

    Loop detection for mobile IP home agents
    9.
    发明授权
    Loop detection for mobile IP home agents 有权
    移动IP归属代理的环路检测

    公开(公告)号:US08094565B2

    公开(公告)日:2012-01-10

    申请号:US12529299

    申请日:2008-02-22

    IPC分类号: H04L12/26

    摘要: The present invention relates to a method and computer-readable medium for loop detection in data packet communication utilizing a tunnel in a network comprising a plurality of nodes. The method comprises the steps of, when a first node transmits a data packet, encoding an identification of the first node in at least two header fields of the data packet to be transmitted, and when the first node receives a data packet, analyzing the at least two header fields of the data packet, deciding if a loop exists by determining if the data packet was sent by the first node itself, based on the analysis of the at least two header fields of the data packet.

    摘要翻译: 本发明涉及利用包括多个节点的网络中的隧道的数据分组通信中的环路检测的方法和计算机可读介质。 该方法包括以下步骤:当第一节点发送数据分组时,在要发送的数据分组的至少两个报头字段中对第一节点的标识进行编码,并且当第一节点接收到数据分组时,分析 基于对数据分组的至少两个报头字段的分析,确定数据分组的至少两个报头字段,通过确定数据分组是否由第一节点本身发送来确定是否存在循环。

    Enabling simultaneous use of home network and foreign network by a multihomed mobile node
    10.
    发明授权
    Enabling simultaneous use of home network and foreign network by a multihomed mobile node 有权
    通过多宿主移动节点同时使用家庭网络和外部网络

    公开(公告)号:US08078753B2

    公开(公告)日:2011-12-13

    申请号:US12067110

    申请日:2006-08-17

    摘要: The invention relates to a method performed by a home agent serving a mobile node in a home network of the mobile node upon attachment of a mobile node to the home network as well as to the home agent. Further, the invention also relates to a method for enabling simultaneous use of a plurality of interfaces by a mobile node being attached to a home network through one of the plurality of interfaces and to at least one foreign network through at least another interface of the plurality of interfaces. Moreover, the invention provides a mobile node and a proxy acting on behalf of the mobile node. To enable a mobile node to use a home network and at least one further foreign network for communications the invention suggests the registration of the mobile node's home address or of a network node within its home network as a care-of address in the home network.

    摘要翻译: 本发明涉及一种在将移动节点附接到家庭网络以及归属代理时,在移动节点的家庭网络中为移动节点服务的归属代理执行的方法。 此外,本发明还涉及一种能够通过移动节点同时使用多个接口的方法,所述移动节点通过多个接口中的一个连接到家庭网络,并且通过多个接口中的至少另一个接口至少一个外部网络 的接口。 此外,本发明提供了代表移动节点的移动节点和代理。 为了使移动节点能够使用家庭网络和至少一个另外的外部网络进行通信,本发明建议移动节点的归属地址或其家庭网络内的网络节点的注册作为归属网络中的转交地址。