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    • 10. 发明申请
    • System and method for channel estimation in an OFDM mobile communication system
    • OFDM移动通信系统中信道估计的系统和方法
    • US20050007983A1
    • 2005-01-13
    • US10840584
    • 2004-05-06
    • Jong-Hyeuk LeeYung-Soo KimGi-Hong ImHui-Chul WonCheol-Jin Park
    • Jong-Hyeuk LeeYung-Soo KimGi-Hong ImHui-Chul WonCheol-Jin Park
    • H04J11/00H04B7/06H04L1/06H04L25/02H04L27/26H04Q7/00
    • H04L27/2602H04B7/0669H04L1/0618H04L25/0204H04L25/022
    • A mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at least one odd carrier and at least one even carrier. The transmitter determines a first symbol and a second symbol to be used for initial channel estimation of a receiver, encodes the first symbol and the second symbol by a preset transmit diversity scheme for a preset time, and transmits the encoded first and second symbols to the receiver through odd carriers and even carriers of the first transmission antenna and the second transmission antenna. The receiver receives a signal for the preset period, estimates channel frequency responses of odd carriers of the first transmission antenna and channel frequency responses of even carriers of the second transmission antenna, and estimates channel frequency responses of even carriers of the first transmission antenna and channel frequency responses of odd carriers of the second transmission antenna by using the estimated channel frequency responses.
    • 移动通信系统,发射机包括第一发射天线和第二发射天线,第一和第二发射天线通过至少一个奇数载波和至少一个偶数载波发射信号。 发射机确定要用于接收机的初始信道估计的第一符号和第二符号,通过预设的发射分集方案对第一符号和第二符号进行预设时间编码,并将编码的第一和第二符号发送到 接收机通过第一发射天线和第二发射天线的奇数载波和偶数载波。 接收机接收预设周期的信号,估计第一发射天线的奇数载波的信道频率响应和第二发射天线的偶数载波的信道频率响应,并估计第一发射天线和信道的偶数载波的信道频率响应 通过使用估计的信道频率响应对第二发射天线的奇数载波的频率响应。