公开(公告)号：US20040032842A1

公开(公告)日：2004-02-19

申请号：US10643792

申请日：2003-08-19

Applicant: InterDigital Technology Corporation

Inventor： David K. Mesecher ,  Rui Yang ,  Ramon Cerda

IPC: H04B007/216

CPC classification number: H04B1/7085 ,  H04B1/707 ,  H04B1/7117 ,  H04L27/0014 ,  H04L27/2332 ,  H04L2027/0053 ,  H04L2027/0055 ,  H04L2027/0069 ,  H04L2027/0081

Abstract: A receiver for receiving a CDMA communication signal that is wirelessly transmitted includes a system for correcting phase errors in an information signal which has been transmitted. The correction system comprises circuitry for generating a mixing signal and for combining the mixing signal with said information signal to produce a correction signal. An analyzer analyzes the phase of said correction signal and generates an error signal based on the deviation of the analyzed phase from a reference phase. A bandwidth controller which recursively adjusts the phase of the correction signal such that the phase of said correction signal is substantially equal to said reference phase. The bandwidth controller then selects a bandwidth within an adjustable range based on the correction signal, estimates an offset by interrogating the error signal, and modifies said correction signal by the offset.

Abstract translation: 用于接收无线发送的CDMA通信信号的接收机包括用于校正已发送的信息信号中的相位误差的系统。 校正系统包括用于产生混合信号并将混合信号与所述信息信号组合以产生校正信号的电路。 分析器分析所述校正信号的相位，并且基于分析的相位与参考相位的偏差产生误差信号。 带宽控制器，递归地调整校正信号的相位，使得所述校正信号的相位基本上等于所述参考相位。 然后，带宽控制器基于校正信号选择可调整范围内的带宽，通过询问误差信号来估计偏移量，并通过偏移来修改所述校正信号。