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    Communication system and communication method
    2.
    发明授权
    Communication system and communication method 有权
    通信系统和通信方法

    公开(公告)号：US08558657B2

    公开(公告)日：2013-10-15

    申请号：US12737775

    申请日：2009-08-06

    申请人： Koichi Moriya ,  Yoshimasa Kimura ,  Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda

    发明人： Koichi Moriya ,  Yoshimasa Kimura ,  Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda

    IPC分类号： G05B23/02 ,  H04J3/06 ,  H04L27/00

    CPC分类号： H04W56/0045

    摘要： A communication system has a server, base station devices, and terminal devices. The server notifies each base station device of a transmission order of a synchronization signal and of the base station device that is designated as a reference. Each one of the base station devices transmits a synchronization signal to the corresponding terminal device based on the transmission order in a case where the one base station device has been designated as the reference. In the case where the one base station device has not been designated as the reference, the one base station device transmits the synchronization signal to the corresponding terminal device at a timing calculated based on a reception timing by the corresponding terminal device of a synchronization signal received from the reference base station device, a transmission order of the reference base station device, and the transmission order of the one base station device.

    摘要翻译： 通信系统具有服务器，基站装置和终端装置。 服务器向每个基站装置通知同步信号的发送顺序和指定为基准的基站装置。 在一个基站装置被指定为基准的情况下，基站装置中的每一个基于发送顺序向对应的终端装置发送同步信号。 在一个基站装置未被指定为基准的情况下，一个基站装置以对应的终端装置接收到的同步信号的接收定时所计算出的定时，向对应的终端装置发送同步信号 来自参考基站装置的参考基站装置的发送顺序和一个基站装置的发送顺序。

    COMMUNICATION SYSTEM AND COMMUNICATION METHOD
    4.
    发明申请
    COMMUNICATION SYSTEM AND COMMUNICATION METHOD 有权
    通信系统和通信方法

    公开(公告)号：US20110207501A1

    公开(公告)日：2011-08-25

    申请号：US12737775

    申请日：2009-08-06

    申请人： Koichi Moriya ,  Yoshimasa Kimura ,  Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda

    发明人： Koichi Moriya ,  Yoshimasa Kimura ,  Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda

    IPC分类号： H04M1/00

    CPC分类号： H04W56/0045

    摘要： The present invention relates to a communication system capable of reducing processing loads imposed on a base station device and a server that sets a timing of a synchronization signal for the base station device. A management server (3) provides notification of a transmission order of the synchronization signal to each of a plurality of base station devices (1). The each of the plurality of base station devices (1) immediately transmits the synchronization signal to a terminal device (2) based on a timing of an already-operating clock in a case of receiving notification indicating the first in transmission order from the management server (3), and, in a case of receiving notification indicating another transmission order than the first from the management server (3), receives a synchronization signal transmitted at the earliest timing from another base station device (1), to thereby transmit the synchronization signal to the terminal device (2) at a timing calculated based on a reception timing of the received synchronization signal and the transmission order received by an own device.

    摘要翻译： 本发明涉及能够降低对基站装置施加的处理负荷的通信系统和设定基站装置的同步信号定时的服务器。 管理服务器（3）向多个基站装置（1）中的每一个提供同步信号的发送顺序的通知。 在从管理服务器接收到指示发送顺序的第一个的通知的情况下，多个基站装置（1）中的每一个基于已经工作的时钟的定时立即将同步信号发送到终端装置（2） （3），并且在从所述管理服务器（3）接收到指示与所述管理服务器（3）中的第一发送顺序相同的通知的情况下，从另一基站装置（1）接收在最早定时发送的同步信号，从而发送同步 在基于接收到的同步信号的接收定时和由本装置接收的发送顺序计算的定时向终端装置（2）发送信号。

    RADIO COMMUNICATION SYSTEM, RECEIVER, AND TRANSMITTER
    5.
    发明申请
    RADIO COMMUNICATION SYSTEM, RECEIVER, AND TRANSMITTER 有权
    无线电通信系统，接收机和发射机

    公开(公告)号：US20110182371A1

    公开(公告)日：2011-07-28

    申请号：US12737629

    申请日：2009-07-30

    申请人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

    发明人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

    IPC分类号： H04L27/00

    CPC分类号： H04W56/00 ,  H04L7/10 ,  H04W52/0229 ,  Y02D70/00

    摘要： Provided are a radio communication system, a receiver, and a transmitter, which are capable of reducing an operation time period of a reception circuit of the receiver and achieving reduction in power consumption even if there is a clock error between the transmitter and the receiver. In a case of a conventional method illustrated in FIG. 1(A), the receiver is operated earlier by a time period (Tm), to thereby achieve synchronization before the clock error of the receiver exceeds the time period (Tm). This requires an extended reception time period for achieving clock synchronization, which therefore prevents the receiver from reducing its power consumption. In view of this, according to the present invention, as illustrated in FIG. 1(B), a synchronization signal is continuously transmitted from the transmitter a plurality of times in a short period of time, and the receiver receives only one of the continuously-transmitted synchronization signals. With this, the receiver can achieve synchronization of a reference clock by starting a reception operation earlier only by a time period (Tm′) (Tm′≦Tm).

    摘要翻译： 提供一种无线电通信系统，接收机和发射机，其能够减少接收机的接收电路的操作时间段，并且即使在发射机和接收机之间存在时钟误差也能实现功率消耗的降低。 在图1所示的常规方法的情况下， 如图1（A）所示，接收机较早地运行时间（Tm），从而在接收机的时钟误差超过时间段（Tm）之前实现同步。 这需要用于实现时钟同步的扩展接收时间段，从而防止接收机降低其功耗。 鉴于此，根据本发明，如图1所示， 如图1（B）所示，在短时间内多次从发送器连续发送同步信号，接收机仅接收连续发送的同步信号之一。 由此，接收器可以通过仅通过时间段（Tm'）（Tm'＆nlE; Tm）开始接收操作来实现参考时钟的同步。

    Radio communication system, receiver, and transmitter
    6.
    发明授权
    Radio communication system, receiver, and transmitter 有权
    无线电通信系统，接收机和发射机

    公开(公告)号：US08660227B2

    公开(公告)日：2014-02-25

    申请号：US12737629

    申请日：2009-07-30

    申请人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

    发明人： Fumio Suzuki ,  Shoji Hatano ,  Noritoshi Hino ,  Masahito Taneda ,  Yoshimisa Kimura ,  Koichi Moriya

    IPC分类号： H04L7/00

    CPC分类号： H04W56/00 ,  H04L7/10 ,  H04W52/0229 ,  Y02D70/00

    摘要： A radio communication system has a transmitter and a receiver that transmits and receives, respectively, synchronization signals. The transmitter has a multiple-synchronization-signal generation section configured to generate the synchronization signals, a radio circuit configured to transmit the synchronization signals in a predetermined transmission cycle from a start time of the predetermined transmission cycle and with an interval shorter than the predetermined transmission cycle, and a synchronization signal sequence number generation section configured to assign a sequence number to each of the synchronization signals. The receiver has a synchronization signal detection section configured to detect any one of the synchronization signals transmitted by the transmitter, and has a clock error correction section configured to correct an error of a reference clock based on the sequence number assigned by the synchronization signal sequence number generation section to the synchronization signal detected by the synchronization signal detection section.

    摘要翻译： 无线电通信系统具有分别发送和接收同步信号的发射机和接收机。 发射机具有多个同步信号产生部分，被配置为产生同步信号，无线电电路被配置为从预定传输周期的开始时间以预定传输周期发射同步信号，并且间隔小于预定传输 以及同步信号序列号生成部，被配置为向每个同步信号分配序列号。 接收机具有同步信号检测部，其被配置为检测由发送器发送的同步信号中的任一个，并且具有时钟误差校正部，被配置为基于由同步信号序列号分配的序列号校正参考时钟的误差 由同步信号检测部检测到的同步信号。