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    • 63. 发明授权
    • Transmission timing control method, base station apparatus and mobile station apparatus
    • 发送定时控制方法,基站装置和移动站装置
    • US08493961B2
    • 2013-07-23
    • US11813582
    • 2006-01-11
    • Atsushi MatsumotoSadaki FutagiKenichi MiyoshiDaichi ImamuraAkihiko Nishio
    • Atsushi MatsumotoSadaki FutagiKenichi MiyoshiDaichi ImamuraAkihiko Nishio
    • H04J3/06
    • H04L5/1469H04L5/023H04L27/2646H04L27/2655
    • A wireless communication method for improving the transmission efficiency in an upstream communication in OFDMA-TDD system or the like. An upstream transmission timing control part (108), which employs this method, controls, based on the OFDMA-TDD scheme, the transmission timings of a mobile station (#p) and a mobile station (#M) communicating with a base station (100). The upstream transmission timing control part (108) acquires information about the propagation delay times τp and τM of the mobile station (#p) and mobile station (#M). When the propagation delay time τp is shorter than the propagation delay time τM, the upstream transmission timing control part (108) decides the transmission timings of the mobile station (#p) and mobile station (#M) such that the timing at which the base station (100) starts receiving symbols from the mobile station (#p) in an upstream section is earlier, by αp times an OFDM symbol length (L) (where αp is a natural number), than the timing at which the base station (100) starts receiving symbols from the mobile station (#M) in the same section.
    • 一种用于在OFDMA-TDD系统中提高上行通信中的传输效率的无线通信方法等。 使用该方法的上行发送定时控制部(108)基于OFDMA-TDD方式,控制与基站通信的移动台(#p)和移动台(#M)的发送定时 100)。 上游发送定时控制部(108)获取关于移动台(#p)和移动台(#M)的传播延迟时间taup和tauM的信息。 当传播延迟时间taup比传播延迟时间ττ短时,上游发送定时控制部(108)决定移动台(#p)和移动台(#M)的发送定时, 基站(100)开始在上游部分中从移动站(#p)开始接收符号的时间早于基站的时间(alphap是自然数) (100)开始从同一部分的移动台(#M)接收符号。
    • 66. 发明授权
    • Radio transmitting apparatus and radio transmitting method
    • 无线发送装置和无线发送方法
    • US07961811B2
    • 2011-06-14
    • US12064698
    • 2006-08-25
    • Kenichi MiyoshiAkihiko NishioDaichi Imamura
    • Kenichi MiyoshiAkihiko NishioDaichi Imamura
    • H04L27/00H04L7/06H04L7/00H04J11/00H04J3/06
    • H04L27/2605H04L27/2607
    • A radio transmitting apparatus and method thereof wherein a guard interval (GI) having a variable length allows a radio receiving apparatus to precisely and easily obtain a symbol synchronization. A GI adding part adds a short GI or a long GI to the head of each of a plurality of data parts. In a case of adding the long GI, the GI adding part copies the symbols of a portion of a second data part, which immediately follows a first data part, including the rear of the second data part, and then adds the copied symbols to the head of the first data part, thereby providing a second GI. Moreover, the GI adding part copies the symbols to a portion of the first data part including the rear thereof, and then adds the copied symbols to the head of the second GI, thereby providing the first GI.
    • 一种无线发送装置及其方法,其中具有可变长度的保护间隔(GI)允许无线电接收装置精确且容易地获得符号同步。 GI添加部分向多个数据部分的每一个的头部添加短GI或长GI。 在添加长GI的情况下,GI附加部分复制第二数据部分的一部分的符号,该第二数据部分紧随第一数据部分,包括第二数据部分的后部,然后将复制的符号添加到 第一数据部分的头部,从而提供第二GI。 此外,GI附加部分将符号复制到包括其后面的第一数据部分的一部分,然后将复制的符号添加到第二GI的头部,从而提供第一GI。
    • 68. 发明授权
    • Radio communication method, relay station device, and radio receiver device
    • 无线电通信方法,中继站设备和无线电接收设备
    • US08224238B2
    • 2012-07-17
    • US13046376
    • 2011-03-11
    • Ayako HoriuchiKenichi KuriKenichi MiyoshiAkihiko NishioTomohiro Imai
    • Ayako HoriuchiKenichi KuriKenichi MiyoshiAkihiko NishioTomohiro Imai
    • H04B7/15
    • H04L1/18H04B7/15557H04L2001/0097
    • Provided is a radio communication method or the like for making compatible an improvement in error rate characteristics and a reduction in delay. The radio communication method is used in a mobile communication system including a mobile station, a relay station and a base station. A transmitted signal containing a signal addressed to the base station is transmitted at first from the mobile station to the relay station. A non-reproduced relay signal obtained in the relay station from the transmitted signal is transmitted from the relay station to the base station. On the basis of the reception result of the non-reproduced relay signal at the base station, a re-transmission request of the transmitted signal is transmitted from the base station. A reproduced relay signal, as obtained from the transmitted signal in the relay station, is transmitted from the relay station to the base station in accordance with the re-transmission request transmitted from the base station.
    • 提供了一种用于使兼容的错误率特性的改善和延迟的减少的无线电通信方法等。 无线电通信方法用于包括移动台,中继站和基站的移动通信系统。 首先从移动台向中继站发送包含寻址到基站的信号的发送信号。 在中继站从所发送的信号获得的非再生中继信号从中继站发送到基站。 基于基站的未再生中继信号的接收结果,从基站发送发送信号的重发请求。 根据从基站发送的重传请求,从中继站向基站发送从中继站中的发送信号获得的再生中继信号。
    • 69. 发明申请
    • RADIO COMMUNICATION METHOD, RELAY STATION DEVICE, AND RADIO RECEIVER DEVICE
    • 无线电通信方法,中继站设备和无线接收设备
    • US20090017814A1
    • 2009-01-15
    • US11816824
    • 2006-02-20
    • Ayako HoriuchiKenichi KuriKenichi MiyoshiAkihiko NishioTomohiro Imai
    • Ayako HoriuchiKenichi KuriKenichi MiyoshiAkihiko NishioTomohiro Imai
    • H04Q7/20
    • H04L1/18H04B7/15557H04L2001/0097
    • Provided is a radio communication method or the like for making compatible an improvement in error rate characteristics and a reduction in delay. The radio communication method is used in a mobile communication system (1) including a mobile station (10), a relay station (20) and a base station (30). A transmitted signal containing a signal addressed to the base station (30) is transmitted at first from the mobile station (10) to the relay station (20). A non-reproduced relay signal obtained in the relay station (20) from the transmitted signal is transmitted from the relay station (20) to the base station (30). On the basis of the reception result of the non-reproduced relay signal at the base station (30), a re-transmission request of the transmitted signal is transmitted from the base station (30). A reproduced relay signal, as obtained from the transmitted signal in the relay station (20), is transmitted from the relay station (20) to the base station (30) in accordance with the re-transmission request transmitted from the base station (30).
    • 提供了一种用于使兼容的错误率特性的改善和延迟的减少的无线电通信方法等。 无线电通信方法用于包括移动台(10),中继站(20)和基站(30)的移动通信系统(1)中。 首先从移动台(10)向中继站(20)发送包含寻址到基站(30)的信号的发送信号。 从所述中继站(20)向所述基站(30)发送从所述发送信号在所述中继站(20)中获得的未再生的中继信号。 基于在基站(30)处的未再生的中继信号的接收结果,从基站(30)发送发送的信号的再发送请求。 根据从基站(30)发送的再发送请求,从中继站(20)向基站(30)发送从中继站(20)中的发送信号获得的再生中继信号, )。