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    Multi-hop communication system, radio control station, radio station and multi-hop communication method
    3.
    发明授权
    Multi-hop communication system, radio control station, radio station and multi-hop communication method 失效
    多跳通信系统，无线电控制站，无线电台和多跳通信方式

    公开(公告)号：US07619998B2

    公开(公告)日：2009-11-17

    申请号：US10782929

    申请日：2004-02-23

    申请人： Shinji Takeda ,  Atsushi Fujiwara ,  Hitoshi Yoshino ,  Toru Otsu

    发明人： Shinji Takeda ,  Atsushi Fujiwara ,  Hitoshi Yoshino ,  Toru Otsu

    IPC分类号： H04H20/71

    CPC分类号： H04W68/00 ,  H04L45/302 ,  H04W4/24 ,  H04W40/02 ,  H04W48/08 ,  H04W48/16 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/30

    摘要： The multi-hop communication system according to the present invention is configured by a radio control station 1 connected to a core network, and radio stations 21, 22, 31-33. The radio control station 1 has a control signal TX/RX unit 12 which transmits/receives the control signal, an information signal TX/RX unit 13 which transmits/receives the information signal, and a communication channel controller 15 which transmits a “usage notification” indicating usage of communication channels managed by the radio control station 1 to the radio stations 21, 22, 31-33 using the control signal. The radio station has a control signal TX/RX unit 42 which transmits/receives the control signal, and an information signal TX/RX unit 43 which transmits/receives the information signal.

    摘要翻译： 根据本发明的多跳通信系统由连接到核心网络的无线电控制站1和无线电台21,22,31-33构成。 无线电控制站1具有发送/接收控制信号的控制信号TX / RX单元12，发送/接收信息信号的信息信号TX / RX单元13以及发送“使用通知”的通信信道控制器15 使用控制信号指示由无线电控制站1管理的通信信道对无线电站21,22,31-33的使用。 无线电台具有发送/接收控制信号的控制信号TX / RX单元42以及发送/接收信息信号的信息信号TX / RX单元43。

    Wireless communication system for multi-hop connection, source station, radio station and pilot signal used therein
    4.
    发明授权
    Wireless communication system for multi-hop connection, source station, radio station and pilot signal used therein 失效
    用于多跳连接，源站，无线电台和其中使用的导频信号的无线通信系统

    公开(公告)号：US07352729B2

    公开(公告)日：2008-04-01

    申请号：US10376244

    申请日：2003-03-03

    申请人： Atsushi Fujiwara ,  Shinji Takeda ,  Hitoshi Yoshino ,  Toru Otsu

    发明人： Atsushi Fujiwara ,  Shinji Takeda ,  Hitoshi Yoshino ,  Toru Otsu

    IPC分类号： H04Q7/24

    CPC分类号： H04L45/00 ,  H04W40/00 ,  H04W40/08 ,  H04W40/16 ,  H04W40/246 ,  H04W88/04 ,  Y02D70/324 ,  Y02D70/34

    摘要： A destination station in a wireless communication system for a multi-hop connection selects a transmission path having a minimum total of required transmission power values of respective stations on the transmission path among candidates of the transmission path from a source station to the destination station and transmits a pilot signal to the source station and a relay station, the pilot signal including identification information about the respective stations on the selected transmission path and required transmission power values thereof. Thus, the source station and the relay station, which have received this pilot signal, can determine the transmission path having the minimum total of the required transmission power values by use of the identification information included in the received pilot signal.

    摘要翻译： 用于多跳连接的无线通信系统中的目的站在从源站到目的站的传输路径的候选中选择具有传输路径上各站的所需发射功率值的最小总和的传输路径，并且发送 向所述源站和中继站发送导频信号，所述导频信号包括关于所选传输路径上的各个站的标识信息及其所需的传输功率值。 因此，已经接收到该导频信号的源站和中继站可以通过使用包含在接收到的导频信号中的识别信息来确定具有所需传输功率值的最小总数的传输路径。

    Radio control station, radio terminal, base station, communication system, and communication method
    5.
    发明授权
    Radio control station, radio terminal, base station, communication system, and communication method 有权
    无线电控制台，无线电终端，基站，通信系统和通信方式

    公开(公告)号：US07720466B2

    公开(公告)日：2010-05-18

    申请号：US10855640

    申请日：2004-05-28

    申请人： Shinji Takeda ,  Toru Otsu

    发明人： Shinji Takeda ,  Toru Otsu

    IPC分类号： H04M3/00

    CPC分类号： H04W48/10 ,  H04W48/18

    摘要： A communication system includes a transmission unit configured to transmit control information relating to plural radio communication systems to a radio terminal through a dedicated control channel commonly used by the plural radio communication systems and for transmitting the control information relating to the plural radio communication systems.

    摘要翻译： 通信系统包括：发送单元，被配置为通过多个无线电通信系统共同使用的专用控制信道向无线电终端发送与多个无线电通信系统有关的控制信息，并发送与多个无线电通信系统有关的控制信息。

    Radio communication system, base station, relay station, mobile station, and packet transmission control method
    9.
    发明授权
    Radio communication system, base station, relay station, mobile station, and packet transmission control method 失效
    无线通信系统，基站，中继站，移动台，分组传输控制方式

    公开(公告)号：US07519029B2

    公开(公告)日：2009-04-14

    申请号：US10328025

    申请日：2002-12-26

    申请人： Shinji Takeda ,  Atsushi Fujiwara ,  Hitoshi Yoshino ,  Toru Otsu ,  Yasushi Yamao

    发明人： Shinji Takeda ,  Atsushi Fujiwara ,  Hitoshi Yoshino ,  Toru Otsu ,  Yasushi Yamao

    IPC分类号： H04B7/216 ,  H04B7/00

    CPC分类号： H04W52/247 ,  H04W24/10 ,  H04W28/18 ,  H04W48/08 ,  H04W52/286 ,  H04W52/46 ,  H04W68/00 ,  H04W88/04 ,  H04W92/10

    摘要： The object is to control interference in a permissible range by applying the CDMA system to signal collision in the conventional CSMA and TDMA base multihop systems and to relax the hidden terminal problem and others to enhance the throughput of the entire system by grouping of channel groups in multihop transmission and by control of transmission based on an interference level from another station. A multihop relay station calculates a desired signal level, for example, from an interference level at its own station of a packet sent from a mobile station, and notifies the mobile station of the desired signal level; and the mobile station calculates a transmission power amount of a packet from the desired signal level, determines whether the packet is transmissible to the station as a source of the desired signal level, and transmits the packet to the source station determined as a packet-transmissible station.

    摘要翻译： 目的是通过将CDMA系统应用于常规CSMA和TDMA基多跳系统中的信号冲突来控制在允许范围内的干扰，并且放松隐藏终端问题等，以通过将信道组分组来提高整个系统的吞吐量 基于来自另一台的干扰电平的多跳传输和传输控制。 多跳中继站例如从移动站发送的分组的本站的干扰级别计算期望的信号电平，并将移动台通知所需的信号电平; 并且移动台根据期望的信号电平计算分组的发送功率量，确定该分组是否作为期望的信号电平的来源发送到该电台，并将该分组发送到被确定为分组可传输的源站 站。

    Radio communication system, radio station, and radio communication method
    10.
    发明授权
    Radio communication system, radio station, and radio communication method 有权
    无线电通信系统，无线电台和无线电通信方式

    公开(公告)号：US07209716B2

    公开(公告)日：2007-04-24

    申请号：US10786541

    申请日：2004-02-26

    申请人： Koji Maeda ,  Yuji Aburakawa ,  Toru Otsu

    发明人： Koji Maeda ,  Yuji Aburakawa ,  Toru Otsu

    IPC分类号： H04B1/04

    CPC分类号： H04W52/46 ,  H04B1/10 ,  H04B1/1027 ,  H04B1/123

    摘要： A radio communication system comprises: a radio receiver including an interference canceller configured to generate a replica of a received signal and remove an interference signal from the received signal, and a frequency offset estimator configured to estimate a carrier frequency offset between a carrier frequency of the interference signal and a carrier frequency of a desired signal included in the received signal; and a radio transmitter including a frequency controller configured to adjust a carrier frequency of a transmitted desired signal to the carrier frequency of the interference signal based on the carrier frequency offset received from the radio receiver.

    摘要翻译： 一种无线电通信系统，包括：无线电接收机，包括：干扰消除器，被配置为产生接收信号的副本，并从接收到的信号中去除干扰信号;频率偏移估计器，被配置为估计载波频率 干扰信号和包含在接收信号中的期望信号的载波频率; 以及无线发射机，其包括频率控制器，该频率控制器被配置为基于从无线电接收机接收的载波频率偏移，将发送的期望信号的载波频率调整到干扰信号的载波频率。