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    • 1. 发明公开
    • SC-FDMA TRANSMISSION DEVICE AND SC-FDMA TRANSMISSION SIGNAL FORMATION METHOD
    • SC-FDMA-ÜBERTRAGUNGSVORRICHTUNGUND VERFAHREN ZUR SC-FDMA-ÜBERTRAGUNGSSIGNALERZEUGUNG
    • EP2259463A1
    • 2010-12-08
    • EP09726340.4
    • 2009-02-06
    • Panasonic Corporation
    • SEKI, Yuta c/o Panasonic CorporationKU, Richol c/o Panasonic Corporation
    • H04J11/00H04L27/01H04W28/18
    • H04L25/03343H04L5/0007H04L5/003
    • It is possible to provide an SC-FDMA transmission device and an SC-FDMA transmission signal formation method which improve the transmission efficiency of the SC-FDMA transmission signal. The SC-FDMA transmission device (100) performs the discrete Fourier transform process on a primary modulation signal sequence formed by N primary modulation symbols to obtain a plurality of frequency components, which are respectively mapped onto different subcarriers. The obtained SC-FDMA symbol is subjected to the inverse Fourier transform process before being transmitted. A propagation path information decoding unit (155) acquires frequency selection characteristic in a propagation path to/from a reception side. A cyclic shift unit (110) and a correlation characteristic judgment unit (115) adjust the frequency response of the SC-FDMA symbol according to the frequency selection characteristic. The adjustment is performed by a result of correlation obtained by performing a correlation calculation between the propagation path frequency selection characteristic and the SC-FDMA symbol.
    • 可以提供提高SC-FDMA传输信号的传输效率的SC-FDMA传输设备和SC-FDMA传输信号形成方法。 SC-FDMA发送装置(100)对由N个一次调制符号构成的一次调制信号序列进行离散付里叶变换处理,得到分别映射到不同副载波上的多个频率成分。 所获得的SC-FDMA符号在发送之前进行傅立叶逆变换处理。 传播路径信息解码单元(155)从接收侧获取传播路径中的频率选择特性。 循环移位单元(110)和相关特性判断单元(115)根据频率选择特性调整SC-FDMA符号的频率响应。 由通过执行传播路径频率选择特性和SC-FDMA符号之间的相关计算得到的相关结果进行调整。