A method, and a node for discovering a network topology
    21.
    发明公开
    A method, and a node for discovering a network topology 审中-公开
    Verfahren und Knoten zur Netzwerktopologieentdeckung

    公开(公告)号:EP2693690A1

    公开(公告)日:2014-02-05

    申请号:EP12305970.1

    申请日:2012-08-03

    申请人: Alcatel Lucent

    IPC分类号: H04L12/24

    CPC分类号: H04L41/12

    摘要: The invention concerns a method for making a network topology discovery, comprising:
    maintaining a mapping of positions of network nodes (101, 102, 103) of a part of the network as information about the network topology, by
    - sending (305, 404) a first message comprising information about a predetermined target position, and
    - transmitting (306, 405) a second message comprising information about a network node (101, 102, 103), in particular located within a predetermined distance or direction from the predetermined target position.

    摘要翻译: 本发明涉及一种用于进行网络拓扑发现的方法,包括:将所述网络的一部分的网络节点(101,102,103)的位置的映射作为关于网络拓扑的信息,通过发送(305,404) 包括关于预定目标位置的信息的第一消息,以及 - 包括关于网络节点(101,102,103)的信息的第二消息(306,405),特别地位于距预定目标位置的预定距离或方向 。

    Apparatus, method and computer program for routing data packets
    22.
    发明授权
    Apparatus, method and computer program for routing data packets 有权
    用于路由数据分组的装置,方法和计算机程序产品

    公开(公告)号:EP2592784B1

    公开(公告)日:2013-09-18

    申请号:EP11306475.2

    申请日:2011-11-14

    申请人: Alcatel Lucent

    IPC分类号: H04L12/26 H04L12/70

    摘要: Embodiments can provide an apparatus, a method and/or a computer program for routing data packets in a radio access network. The apparatus 10 comprises means for receiving 12 a data packet 804 from a source network node, the data packet comprises a data packet header and a data packet payload. The apparatus 10 further comprises means for inspecting 14 the data packet. The means for inspecting 14 is operative to perform a first packet inspection on the data packet header to determine information on a source or a destination of the data packet from the data packet header, and the means for inspecting 14 is operative to perform a second packet inspection on the data packet payload based on the information on the source or the destination of the data packet to determine information on an identification of the destination of the data packet. The apparatus 10 further comprises means for determining 16 information on a subsequent network node based on the information on the identification of the destination of the data packet.

    A method in a peer for authenticating the peer to an authenticator, corresponding device, and computer program product therefore
    23.
    发明公开
    A method in a peer for authenticating the peer to an authenticator, corresponding device, and computer program product therefore 审中-公开
    用于认证对等体到认证器,用于对应的装置和计算机程序产品,在一个对等体的方法

    公开(公告)号:EP2141883A1

    公开(公告)日:2010-01-06

    申请号:EP08305380.1

    申请日:2008-07-04

    申请人: Alcatel Lucent

    发明人: Klotsche, Ralf

    IPC分类号: H04L29/06

    摘要: The invention concerns a method in a peer (201) for authenticating the peer (201) to an authenticator (220), wherein the method comprises the steps of establishing (101) a network link to the authenticator (220), receiving (102) a challenge message from the authenticator (220) over the network link, the challenge message comprising a challenge value, calculating (104) a response value by applying a one-way function to at least the challenge value and a secret value, and sending (105) a response message to the authenticator (220) over the network link, the response message comprising the response value, wherein, in order to validate a computer-readable program (204) stored by the peer (201) for execution by the peer (201), the secret value is calculated (103) from the computer-readable program (204). The invention further concerns a device (201) and computer program product therefore.

    摘要翻译: 本发明涉及一种方法,在对等体(201),用于认证所述对等体(201)在认证者(220)的worin方法包括建立(101)的网络链路到所述认证者(220),接收步骤(102) 从所述认证者(220)通过网络链路询问消息,所述询问消息包括询问值,计算(104)通过将一个单向函数应用于至少所述询问值和秘密值,以及发送(响应值 105)的响应消息到所述认证者(220)通过网络链路,所述响应消息包括所述responseValue,worin,为了验证由所述对等对端(201),用于执行存储在计算机可读程序(204) (201),所述秘密值从计算机可读程序(204)计算值(103)。 本发明还涉及一种设备(201)和计算机程序产品THEREFORE。

    A method for routing a packet between communication endpoints, corresponding devices, and computer program product therefore
    24.
    发明公开
    A method for routing a packet between communication endpoints, corresponding devices, and computer program product therefore 审中-公开
    一种用于路由通信端点之间的数据包,对应的装置的方法,和计算机程序产品,用于

    公开(公告)号:EP2139176A1

    公开(公告)日:2009-12-30

    申请号:EP08159164.6

    申请日:2008-06-27

    发明人: Klotsche, Ralf

    IPC分类号: H04L12/56

    CPC分类号: H04L45/54 H04L45/04 H04W40/02

    摘要: The invention concerns a method for routing a packet from a communication endpoint to a correspondent communication endpoint via a plurality of communication nodes, the method comprising the step of repeatedly forwarding the packet toward the correspondent communication endpoint until the packet reaches the correspondent communication endpoint, wherein, in order to forward the packet toward the correspondent communication endpoint across a plurality of network domains, the method comprises the steps of creating (101) a data structure for storing destination addresses in the first communication endpoint, adding (102) an address of the correspondent communication endpoint to the data structure in the first communication endpoint, in response to the packet entering a network domain, adding (104) an address of a further communication endpoint of the network domain to the data structure, and in response to the packet reaching the destination address contained in the data structure, removing (105) the destination address contained in the data structure, wherein the repeated forwarding of the packet toward the second communication endpoint is effected by repeatedly forwarding (103) the packet and the data structure toward the destination address contained in the data structure until the packet reaches the correspondent communication endpoint. The invention further concerns a computer program product, a communication endpoint, and a communication node therefore.

    摘要翻译: 本发明涉及一种方法,用于经由通信节点的多个从通信端点路由的分组到相应的通信端点,所述方法包括的,直到到达对应的通信端点反复转发朝向对应的通信端点的分组的步骤中,worin 为了转发朝向跨网络域的多个对应的通信端点的分组,所述方法包括:创建(101),用于在所述第一通信端点的存储目的地地址的数据结构,增加(102)的步骤,以地址 对应通信端点可以在网络域的数据结构的一个进一步的通信端点的地址中的数据结构在所述第一通信端点,响应于进入网络域的包,添加(104),并且响应于该分组到达 包含在数据结构中的目的地址,除去 (105)包含在该数据结构中的目的地址,worin朝向第二通信端点的分组的重复转发是通过重复地转发(103)该分组并且朝向包含在该数据结构中,直到该分组的目的地址的数据结构来实现 到达对应通信端点。 本发明还涉及一种计算机程序产品,通信端点,因此一个通信节点。

    Doppler compensation control for radio transmission
    26.
    发明授权
    Doppler compensation control for radio transmission 有权
    的用于无线传输的多普勒效应补偿控制

    公开(公告)号:EP1821427B1

    公开(公告)日:2008-05-28

    申请号:EP06300147.3

    申请日:2006-02-20

    申请人: Alcatel Lucent

    IPC分类号: H04B7/01

    CPC分类号: H04B7/01 H04W56/0035

    摘要: A Doppler compensation method is used for radio transmission between a mobile body possibly but not exclusively a train and some base station, both mobile body and base station comprise respectively a transceiver connected to an antenna for the radio transmission. The method comprises the step of determining the direction of motion of the mobile body with respect to the active base station i.e. the base station to which a radio transmission link is just built. The method is then followed by the step to apply a constant Doppler compensation corresponding to the cancellation of the Doppler effect for a mobile body moving in the same direction at predefined limiting speed of motion (v limit ) at which a quality threshold is reached with the used radio transmission technology in the case without a Doppler compensation.

    System and method to minimise the impact of the Doppler effect in radio transmission to a mobile device
    27.
    发明公开
    System and method to minimise the impact of the Doppler effect in radio transmission to a mobile device 审中-公开
    系统和Verfahren zur Doppler-Effekt-Minimalisierung在einemFunkübertragungssystemzu einem mobilenGerät

    公开(公告)号:EP1876726A1

    公开(公告)日:2008-01-09

    申请号:EP06300751.2

    申请日:2006-07-04

    申请人: Alcatel Lucent

    发明人: Klotsche, Ralf

    IPC分类号: H04B7/01

    CPC分类号: H04B7/01

    摘要: A system for radio transmission between a mobile body moving on a track and base stations via a plurality of antennas is described, while the system comprises a controller switching the antennas regularly assembled along the track between an active and a muted state accordingly to the position of the mobile body. The antenna or group of antennas closest to the mobile body are in a muted state. The system is particularly adapted for mobile body in motion in that the antennas are switched by the controller into a muted state when the mobile body is approaching the respective antennas. The radio transmission link to the mobile body is handoff from one antenna to the other switched in an active state such to keep pace with that mobile body. This can be preferably performed ahead i.e. by preceding the mobile body or behind i.e. by following the mobile body.

    摘要翻译: 描述了通过多个天线在轨道和基站之间移动的移动体之间的无线电传输系统,同时该系统包括一个控制器,该控制器将沿轨道定期组装的天线在有源和静音状态之间相应地切换到 移动体。 最靠近移动体的天线或天线组处于静音状态。 该系统特别适用于运动中的移动体,其中当移动体接近相应的天线时,天线由控制器切换到静音状态。 到移动体的无线电传输链路是从一个天线切换到另一个天线切换到处于活动状态的,以便与该移动体保持同步。 这可以优选地在前面进行,即通过在移动体之前或之后,即通过跟随移动体。

    Doppler effect compensation for radio transmission
    28.
    发明公开
    Doppler effect compensation for radio transmission 审中-公开
    Dopplereffektkompensation zurFunkübertragung

    公开(公告)号:EP1806854A1

    公开(公告)日:2007-07-11

    申请号:EP06290055.0

    申请日:2006-01-04

    申请人: Alcatel Lucent

    IPC分类号: H04B7/01

    CPC分类号: H04B7/01 H04W56/0035

    摘要: The goal of the invention is to keep the delay of a communication signal between a moving vehicle (mobile body) and a fixed base station constant. This is achieved by a Doppler compensation method for data to be transmitted within frames via radio transmission between a mobile body and some base station, both mobile body and base station comprise respectively a transceiver connected to an antenna for the radio transmission. The method comprises the step of determining the Doppler effect acting on the frames when transmitted as a signal through that radio transmission for a given speed and direction of motion of the mobile body with respect to the base station. It is then followed by the step to apply by the transceiver some sampling procedure comprising an allocation of different time delays to the signal, the different time delays being chosen following a law adapted to compensate the determined Doppler effect.

    摘要翻译: 本发明的目标是保持移动车辆(移动体)和固定基站之间的通信信号的延迟恒定。 这通过多普勒补偿方法来实现,用于通过移动体和一些基站之间的无线电传输在帧内传输的数据,移动体和基站分别包括连接到用于无线电传输的天线的收发机。 该方法包括以下步骤:当针对移动体相对于基站的给定速度和运动方向通过该无线电传输作为信号发送时,确定作用于帧的多普勒效应。 然后由收发机应用一步采用包括对信号进行不同时间延迟的分配的采样过程,不同的时间延迟根据适于补偿所确定的多普勒效应的定律来选择。