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    • 32. 发明申请
    • WIRELESS RECEIVING APPARATUS AND PROGRAM
    • 无线接收设备和程序
    • US20140177763A1
    • 2014-06-26
    • US14235537
    • 2012-07-19
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • Hiromichi TomebaTakashi OnoderaHiroshi NakanoAlvaro Ruiz Delgado
    • H04B7/04H04L25/02
    • H04B7/0478H04B7/0456H04J11/0036H04J11/0063H04L25/0212H04L25/0224H04L25/025H04L27/2647
    • A data signal component output from a reference signal demultiplexer and channel state information obtained by using DM-RS output from a channel estimating unit are input into a modulo estimating unit. In a channel compensator, a first provisional decision value sequence is calculated on the basis of the channel state information. The first provisional decision value sequence is input into a modulo calculator, and modulo calculations are performed on the first provisional decision value sequence to obtain a second provisional decision value sequence. A decision-feedback channel estimating section finds a first channel estimation value based on the first provisional decision value sequence and a second channel estimation value based on the second provisional decision value sequence. A modulo decision section decides whether or not a perturbation term has been added to a code, and uses a decision result for the selection of a demodulation method.
    • 从参考信号解复用器输出的数据信号分量和通过使用从信道估计单元输出的DM-RS获得的信道状态信息被输入到模估计单元中。 在信道补偿器中,基于信道状态信息来计算第一临时判定值序列。 第一临时判定值序列被输入到模运算器中,并且对第一临时判定值序列进行模运算以获得第二临时判定值序列。 判定反馈信道估计部基于第一临时判定值序列和基于第二临时判定值序列的第二信道估计值,求出第一信道估计值。 模决定部判定是否将扰动项添加到代码中,并且使用用于选择解调方法的判定结果。
    • 34. 发明授权
    • Radio communication system and receiving apparatus
    • 无线电通信系统和接收装置
    • US09225557B2
    • 2015-12-29
    • US13636054
    • 2011-03-29
    • Hiromichi TomebaOsamu NakamuraShinpei Toh
    • Hiromichi TomebaOsamu NakamuraShinpei Toh
    • H04L25/02H04L27/26
    • H04L25/0226H04L25/0204H04L25/022H04L25/0228H04L27/2647
    • A radio communication system includes a multiple number of transmitting apparatus and a receiving apparatus including a multiple number of receive antennas, in which the transmitting apparatus generates a reference signal that is obtained by adding a different time shift to a known signal between the transmitting apparatus and the receiving apparatus, multiplexes a data signal with the reference signal and transmits the resultant signal. The receiving apparatus separates reference signals multiplexed on the signals received from the multiple transmitting apparatus, and estimates channel information from the reference signals, which have been transmitted through common frequencies in part or whole of the signal spectra. Then, the data signal is decoded based on the estimated channel information.
    • 无线电通信系统包括多个发送装置和包括多个接收天线的接收装置,其中发送装置生成通过在发送装置和发送装置之间向已知信号添加不同的时移而获得的参考信号, 接收装置将数据信号与参考信号进行复用,并发送所得到的信号。 接收装置分离从多个发送装置接收到的信号上多路复用的参考信号,并从信号频谱的一部分或全部通过公共频率发送的参考信号估计信道信息。 然后,基于估计的信道信息对数据信号进行解码。
    • 35. 发明授权
    • Wireless communication apparatus and wireless communication method
    • 无线通信装置和无线通信方法
    • US07920659B2
    • 2011-04-05
    • US11912476
    • 2006-04-24
    • Akihiko NishioKatsuhiko HiramatsuFumiyuki AdachiKazuaki TakedaHiromichi Tomeba
    • Akihiko NishioKatsuhiko HiramatsuFumiyuki AdachiKazuaki TakedaHiromichi Tomeba
    • H04L27/06
    • H04L27/2662H04L25/0216H04L27/265
    • A wireless communication apparatus capable of enhancing the transmission efficiency, while maintaining a good BER characteristic. In this apparatus, a setting part (13) sets, based on the maximum delay amount of a delayed wave and also based on the expansion of impulse response of FDE, an FFT part (14) to establish an FFT section of Nc symbol, and also sets a selecting part (17) to establish a selection section of Nc−2M−Δ symbol that is shorter than the FFT section. The setting part (13) also sets the start points of FFT and selection sections established at this time for such timings that they are shifted by Nc−2M−Δ symbol from the start points of the FFT and selection sections previously established. It should be noted that the maximum delay amount of the delayed wave is Δ symbol, the expansion of impulse response of FDE is plus/minus M symbols, and the symbol block length is Nc.
    • 一种能够在保持良好的BER特性的同时提高传输效率的无线通信装置。 在该装置中,设置部分(13)基于延迟波的最大延迟量并且还基于FDE的脉冲响应的扩展来设置FFT部分(14),以建立Nc符号的FFT部分,以及 还设置选择部分(17)以建立Nc-2M-&Dgr的选择部分; 比FFT部分短的符号。 设置部分(13)还设置这样的定时的FFT和选择部分的开始点,使它们被Nc-2M-&Dgr移位; 来自先前建立的FFT和选择部分的起点的符号。 应该注意的是,延迟波的最大延迟量为&Dgr; 符号,FDE的脉冲响应的扩展是加/减M个符号,符号块长度是Nc。
    • 37. 发明申请
    • RADIO COMMUNICATION SYSTEM AND RECEIVING APPARATUS
    • 无线电通信系统和接收设备
    • US20130016712A1
    • 2013-01-17
    • US13636054
    • 2011-03-29
    • Hiromichi TomebaOsamu NakamuraShinpei Toh
    • Hiromichi TomebaOsamu NakamuraShinpei Toh
    • H04J3/00
    • H04L25/0226H04L25/0204H04L25/022H04L25/0228H04L27/2647
    • A radio communication system includes a multiple number of transmitting apparatus and a receiving apparatus including a multiple number of receive antennas, in which the transmitting apparatus generates a reference signal that is obtained by adding a different time shift to a known signal between the transmitting apparatus and the receiving apparatus, multiplexes a data signal with the reference signal and transmits the resultant signal. The receiving apparatus separates reference signals multiplexed on the signals received from the multiple transmitting apparatus, and estimates channel information from the reference signals, which have been transmitted through common frequencies in part or whole of the signal spectra. Then, the data signal is decoded based on the estimated channel information.
    • 无线电通信系统包括多个发送装置和包括多个接收天线的接收装置,其中发送装置生成通过在发送装置和发送装置之间向已知信号添加不同的时移而获得的参考信号, 接收装置将数据信号与参考信号进行复用,并发送所得到的信号。 接收装置分离从多个发送装置接收到的信号上多路复用的参考信号,并从信号频谱的一部分或全部通过公共频率发送的参考信号估计信道信息。 然后,基于估计的信道信息对数据信号进行解码。