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    • 47. 发明申请
    • MOBILE COMMUNICATION SYSTEM
    • 移动通信系统
    • US20110044214A1
    • 2011-02-24
    • US12919418
    • 2009-02-20
    • Hiromasa FujiiHitoshi Yoshino
    • Hiromasa FujiiHitoshi Yoshino
    • H04W72/04H04J1/00H04J3/00
    • H04W72/082H04J11/0023H04L5/0037H04L27/2601H04W72/0413
    • In a mobile communication system including a base station and a user terminal which communicate with each other according to FDD (frequency division duplex), an uplink frequency band and a downlink frequency band which are adjacent to each other are divided into plural time slots. The user terminal includes an interference detecting unit configured to detect interference in the downlink frequency band; and a time slot information generating unit configured to generate information about an available time slot in the downlink frequency band based on the detected interference. The base station includes a time slot allocating unit configured to allocate a time slot to be used in the downlink frequency band based on the information about the time slot received from the user terminal.
    • 在包括根据FDD(频分双工)相互通信的基站和用户终端的移动通信系统中,彼此相邻的上行链路频带和下行链路频带被划分为多个时隙。 用户终端包括:干扰检测单元,被配置为检测下行链路频带中的干扰; 以及时隙信息生成单元,被配置为基于所检测的干扰生成关于所述下行链路频带中的可用时隙的信息。 基站包括时隙分配单元,其被配置为基于从用户终端接收到的时隙的信息来分配在下行链路频带中使用的时隙。
    • 50. 发明授权
    • Communication system and method using a relay node
    • 通信系统和方法使用中继节点
    • US07555035B2
    • 2009-06-30
    • US11213883
    • 2005-08-30
    • Hui ShiTetsushi AbeTakahiro AsaiHitoshi Yoshino
    • Hui ShiTetsushi AbeTakahiro AsaiHitoshi Yoshino
    • H04L25/52H04B7/14
    • H04B7/026H04B7/15528H04L1/0618H04L25/0204H04L25/0228H04L25/0246H04L25/20H04W52/46H04W88/04
    • A communication node that relays signals between a source node and a destination node includes (a) a first unitary matrix calculation unit configured to calculate a first unitary matrix based on a first channel between the source node and the relay node, (b) a second unitary matrix calculation unit configured to calculate a second unitary matrix based on a second channel between the relay node and the destination node, (c) a transformation matrix estimation unit configured to estimate a transformation matrix based on a triangular matrix derived from QR decomposition of the first and/or second channel matrix, (d) a relaying signal generator configured to generates a relaying signal by multiplying a received signal by at least one of the first unitary matrix, the second unitary matrix, and the transformation matrix, and (e) a transmission unit configured to transmit the relaying signal to the destination node.
    • 在源节点和目的地节点之间中继信号的通信节点包括:(a)第一单位矩阵计算单元,被配置为基于源节点和中继节点之间的第一信道来计算第一单位矩阵,(b)第二单元矩阵计算单元, 酉矩阵计算单元,被配置为基于中继节点和目的地节点之间的第二信道来计算第二酉矩阵,(c)变换矩阵估计单元,被配置为基于从QR分解导出的三角矩阵来估计变换矩阵 第一和/或第二信道矩阵,(d)中继信号发生器,被配置为通过将接收信号乘以第一单位矩阵,第二单位矩阵和变换矩阵中的至少一个来生成中继信号,以及(e) 发送单元,被配置为将中继信号发送到目的地节点。