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    • 2. 发明公开
    • 타임-슬롯 분할 이동 통신 시스템에서의 시간 변화 채널의정정 방법
    • 用于时间段移动通信系统中时变通道的校准方法
    • KR1020050086947A
    • 2005-08-30
    • KR1020057012127
    • 2003-12-26
    • 다 탕 모바일 커뮤니케이션즈 이큅먼트 코포레이션 리미티드
    • 양잉민
    • H04J3/10H04B1/7115
    • H04L25/022H04B1/707H04B1/7103H04B2201/70701H04L25/0236H04L25/024
    • A calibrating method for time-varying channel in a time-slot division mobile communication system is disclosed in the invention, including performing channel estimation and signal detection on a slot or abrupt received signals according to time- invariant block processing method; estimating the channel error by using the partial detection result close to the channel estimation code; utilizing the estimated channel error to modify the channel estimation; employing the modified channel estimation to demodulate the above mentioned detection result. This procedure can be performed once or several times. The present invention enables the block processing method adapt to some extent of variation of channel responses in a slot while maintaining its basic features, to achieve broadening slotted CDMA or the application range limitation of the block processing system, and also to improve the system performance in the case of larger frequency error, drifting and high-speed moving terminals.
    • 本发明公开了一种时隙分割移动通信系统中时变信道的校准方法,包括:根据时不变块处理方法对时隙或突发接收信号进行信道估计和信号检测; 通过使用靠近信道估计码的部分检测结果来估计信道误差; 利用估计的信道误差来修改信道估计; 采用经修改的信道估计来解调上述检测结果。 该过程可以执行一次或几次。 本发明使得块处理方法能够在保持其基本特征的同时适应时隙中的信道响应的一定程度的变化,实现扩展时隙CDMA或块处理系统的应用范围限制,并且还提高系统性能 频率误差较大,漂移和高速移动终端的情况。