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60 条记录 (耗时 0.023 秒)

    Authentication method for wireless distributed system
    2.
    发明公开
    Authentication method for wireless distributed system 审中-公开
    Authentifizierungsverfahrenfürein drahtloses verteiltes系统

    公开(公告)号：EP1722589A2

    公开(公告)日：2006-11-15

    申请号：EP06009984.3

    申请日：2006-05-15

    申请人： Samsung Electronics Co., Ltd. ,  The University of Maryland College Park

    发明人： Lee, In-Sun ,  Yun, Sang-Boh ,  Arbaugh, William Albert ,  Clancy, T. Charles, The University of Maryland ,  Shin, Min-Ho

    IPC分类号： H04Q7/38

    摘要： The present invention relates to an authentication method for wireless distribution system including at least one base station providing access service to mobile stations in a coverage of the base station. In the authentication method, an unregistered base station receives an authentication request from a mobile station, multicast an identity request for identifying the mobile station over the wireless distribution system, receives identity responses from at least one base station in response to the identity request, and performs authentication of the mobile station on the basis of the identity responses. The distributed authentication method of the present invention is performed without AAA server, when a new base station is installed or isolated base stations are joined, such that it is possible to extend the network in an easy manner without degradation of the security degree and additional labor burden of the operator.

    摘要翻译： 本发明涉及一种无线分配系统的认证方法，包括至少一个基站向基站的覆盖范围内的移动台提供接入服务。 在认证方法中，未注册基站从移动台接收认证请求，通过无线分发系统多播用于识别移动台的身份请求，响应于身份请求从至少一个基站接收身份响应，以及 基于身份响应来执行移动台的认证。 本发明的分布式认证方法在没有AAA服务器的情况下进行，当安装新的基站或者隔离的基站被连接时，可以容易地扩展网络而不降低安全程度和额外的劳动 操作人员的负担。

    System and method for shortened paging in a wireless mobile communication system based on internet protocol
    7.
    发明公开
    System and method for shortened paging in a wireless mobile communication system based on internet protocol 有权
    VERFAHREN UND SYSTEMFÜRDIEDURCHFÜHRUNGEINER STANDORTREGISTRIERUNG IN EINEM MOBILFUNKSYSTEM

    公开(公告)号：EP1758424A1

    公开(公告)日：2007-02-28

    申请号：EP06017802.7

    申请日：2006-08-25

    申请人： Samsung Electronics Co., Ltd.

    发明人： Park, Chi-Hyun ,  Yun, Sang-Boh ,  Cheon, Jung-Hoon ,  Lee, Ok Seon

    IPC分类号： H04Q7/38

    CPC分类号： H04L29/12311 ,  H04L61/2084 ,  H04W60/04 ,  H04W68/00 ,  H04W80/04

    摘要： A system is provided for performing location update in a wireless mobile communication system that uses an Internet protocol (IP) address and is classified as at least one paging group. A serving base station (BS) sends a message including an identifier of a paging group where the serving BS is located, determines whether there is a change in IP subnet of a mobile station (MS) upon receipt of a location update request from the MS, and upon recognizing a change in IP subnet of the MS, stores information on a new IP subnet and notifies the change in the IP subnet to the MS. Upon detecting a need for location update, the MS sends a request for location update to a serving BS, and receives a location update success notification and an allocated temporary IP address from the serving BS.

    摘要翻译： 提供了一种用于在使用因特网协议（IP）地址并被分类为至少一个寻呼组的无线移动通信系统中执行位置更新的系统。 服务基站（BS）发送包括服务BS所在的寻呼组的标识符的消息，在接收到来自MS的位置更新请求时确定移动台（MS）的IP子网是否发生变化 并且在识别到MS的IP子网的变化时，存储关于新的IP子网的信息，并将该IP子网的改变通知给MS。 在检测到位置更新的需要时，MS向服务BS发送位置更新请求，并从服务BS接收位置更新成功通知和分配的临时IP地址。

    Dynamic resource allocation method for an OFDMA system
    8.
    发明公开
    Dynamic resource allocation method for an OFDMA system 有权
    天DMA DMA TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM

    公开(公告)号：EP1744511A1

    公开(公告)日：2007-01-17

    申请号：EP05015033.3

    申请日：2005-07-11

    申请人： Samsung Electronics Co., Ltd.

    发明人： Kim, Il-Whan ,  Yun, Sang-Boh ,  Cho, Sung-Hyun ,  Park, Won-Hyoung ,  Kang, Chung-Gu ,  Lee, Jeong-Hwan

    IPC分类号： H04L27/26 ,  H04L5/02

    CPC分类号： H04L5/0058 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0046 ,  H04W24/00 ,  H04W72/0406 ,  H04W72/048 ,  H04W88/08

    摘要： A dynamic resource allocation method in an OFDMA system is provided. A base station determines if each of a plurality of SSs supports subchannel-based dynamic resource allocation. If an SS supports the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a subchannel basis. If the SS does not support the subchannel-based dynamic resource allocation, the base station allocates resources to the SS on a burst basis.

    摘要翻译： 提供了OFDMA系统中的动态资源分配方法。 基站确定多个SS中的每一个是否支持基于子信道的动态资源分配。 如果SS支持基于子信道的动态资源分配，则基站在子信道基础上向SS分配资源。 如果SS不支持基于子信道的动态资源分配，则基站以突发为基础向SS分配资源。

    Apparatus and method for receiving differential space-time block code
    9.
    发明公开
    Apparatus and method for receiving differential space-time block code 审中-公开
    Vorrichtung und Verfahren zum Empfang einer differentnziellen Raum-Zeitblockkodierung

    公开(公告)号：EP1679815A2

    公开(公告)日：2006-07-12

    申请号：EP05019437.2

    申请日：2005-09-07

    申请人： Samsung Electronics Co., Ltd.

    发明人： Park, Seung-Young ,  Yun, Sang-Boh ,  Lee, Yeon-Woo

    IPC分类号： H04L1/06

    CPC分类号： H04L1/005 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/0631

    摘要： Provided is an apparatus and method for receiving a differential space-time block code (STBC) without estimating a channel characteristic using an additional training sequence in a wireless communication system using a plurality of transmission/reception antennas. The apparatus for receiving a differential STBC includes a detector for detecting a symbol from a received differential STBC using a trellis diagram and a Viterbi algorithm, a deinterleaver for deinterleaving the detected symbol, and a decoder for decoding a signal deinterleaved by the deinterleaver.

    摘要翻译： 提供了一种用于在使用多个发送/接收天线的无线通信系统中使用附加训练序列来估计差分空时块码（STBC）而不估计信道特性的装置和方法。 用于接收差分STBC的装置包括用于使用网格图和维特比算法从接收的差分STBC检测符号的检测器，用于对所检测到的符号进行解交织的解交织器，以及用于解码由解交织器去交织的信号的解码器。

    Method of allocating subcarriers on the downlink of a CDMA system
    10.
    发明公开
    Method of allocating subcarriers on the downlink of a CDMA system 审中-公开
    德国电讯公司CDMA系统公司（Verfahren zur Zuweisung vonUnterträgernan derAbwärtsverbindung）

    公开(公告)号：EP1615367A1

    公开(公告)日：2006-01-11

    申请号：EP05015034.1

    申请日：2005-07-11

    申请人： Samsung Electronics Co., Ltd.

    发明人： Kim, Seong-Lyun ,  Yun, Sang-Boh ,  Lee, Yeon-Woo ,  Park, Won-Hyoung

    IPC分类号： H04L5/02 ,  H04L27/26

    CPC分类号： H04L5/0044 ,  H04L5/0021 ,  H04L5/006

    摘要： In a resource allocation method in a multicarrier-based mobile communication system that includes base stations and supports multiple access of a plurality of terminals identified using codes, the service area of each base station is divided into at least two virtual cells having different radii about the base station, and resources are actively allocated to terminals located in the service area according to distribution of the terminals in the virtual cells. The service area is divided into two virtual cells based on received signal strengths of the terminals for a specific subchannel, and the specific subchannel is allocated to one terminal or at most two terminals according to distribution of the terminals in the virtual cells.

    摘要翻译： 在基于多载波的移动通信系统中的资源分配方法中，包括基站并且支持使用代码识别的多个终端的多个接入，每个基站的服务区被划分为至少两个具有不同半径的虚拟小区 基站，并且根据终端在虚拟小区中的分布，将资源主动分配给位于服务区域中的终端。 基于针对特定子信道的终端的接收信号强度将服务区域划分为两个虚拟小区，并且根据终端在虚拟小区中的分布将特定子信道分配给一个终端或最多两个终端。