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    • 43. 发明申请
    • WIRELESS COMMUNICATION METHOD, BASE STATION APPARATUS AND MOBILE STATION APPARATUS
    • 无线通信方法,基站装置和移动站装置
    • US20090046604A1
    • 2009-02-19
    • US11813582
    • 2006-01-11
    • Atsushi MatsumotoSadaki FutagiKenichi MiyoshiDaichi ImamuraAkihiko Nishio
    • Atsushi MatsumotoSadaki FutagiKenichi MiyoshiDaichi ImamuraAkihiko Nishio
    • H04J3/00H04L7/00
    • 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。
    • 49. 发明申请
    • RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD
    • 无线电发射装置和无线电发射方法
    • US20090137230A1
    • 2009-05-28
    • US12282791
    • 2007-03-14
    • Kenichi MiyoshiDaichi ImamuraHidetoshi SuzukiTakashi Aramaki
    • Kenichi MiyoshiDaichi ImamuraHidetoshi SuzukiTakashi Aramaki
    • H04M3/42H04M1/00H04B1/38
    • H04L27/2607H04L1/0026H04L1/0081H04L1/0088H04L1/1607H04L25/03159
    • There is provided a wireless transmitting device, the reception quality of which can be improved by effectively using the cyclic prefix. In the wireless transmitting device, a data mapping determination unit (204) determines a data mapping method according to tmax information, and a data mapping unit (207) performs data mapping on the signals outputted from modulation units (205, 206) according to the data mapping method determined by the data mapping determination unit (204). The data mapping determination unit (204) acquires the tmax information transmitted from a communication party and determines to map important information, such as of a control channel, a systematic bit, a resending bit, ACK/NACK information (ACK or NACK), a CQI (Channel Quality Indicator), a TFCI (Transport Format Combination Indicator), information necessary for modulation, a pilot, a power control bit, etc., on the data from its tail end to the portion corresponding to (TGI-tmax).
    • 提供了一种通过有效地使用循环前缀来提高其接收质量的无线发送装置。 在无线发送装置中,数据映射决定部(204)根据tmax信息确定数据映射方法,数据映射部(207)根据调制部(205,206)输出的信号进行数据映射 数据映射确定单元(204)确定的数据映射方法。 数据映射确定单元(204)获取从通信方发送的tmax信息,并确定映射重要信息,例如控制信道,系统比特,重发位,ACK / NACK信息(ACK或NACK), CQI(信道质量指示符),TFCI(传输格式组合指示符),调制所需的信息,导频,功率控制位等,从其尾端到与(TGI-tmax)对应的部分的数据。