公开(公告)号：WO2004073185A2

公开(公告)日：2004-08-26

申请号：PCT/US2004/004424

申请日：2004-02-11

Applicant: MOTOROLA INC. A CORPORATION OF THE STATE OF DELEWARE ,  BUCKLEY, Michael E. ,  BACHU, Raja S. ,  STEWART, Kenneth A. ,  WILKINS, Clint S.

Inventor： BUCKLEY, Michael E. ,  BACHU, Raja S. ,  STEWART, Kenneth A. ,  WILKINS, Clint S.

IPC: H04B

CPC classification number: H04L25/0244 ,  H04L25/0224 ,  H04L27/2017 ,  H04L2025/03407 ,  H04L2025/03414

Abstract: A method for reducing interference in a desired signal in a GSM communication system uses a finite-impulse-response filter for alternate linear equalization. The method includes a first step (300) of inputting a burst of data of a received waveform including interference from a channel of the communication system. A next step (302) includes training the finite-impulse-response filter with a set of symbols of specific quadrature phase, known a priori, in the burst of data of the received waveform. For example known real only and imaginary only symbols are alternatively selected from a midamble of the data burst. A next step (304) includes operating on the received waveform with the finite-impulse-response filter to alternately linearly equalize the burst of data to provide an estimate of the desired signal.

Abstract translation: 在GSM通信系统中用于减少期望信号中的干扰的方法使用用于交替线性均衡的有限脉冲响应滤波器。 该方法包括输入包括来自通信系统的信道的干扰的接收波形的数据的突发的第一步骤（300）。 下一个步骤（302）包括在接收波形的数据突发中用一组特定正交相位的先验已知的符号来训练有限脉冲响应滤波器。 例如，从数据突发的中间码中可选地选择已知的仅有和仅有虚符号。 下一个步骤（304）包括利用有限脉冲响应滤波器对接收的波形进行操作以交替地线性均衡数据突发以提供对所需信号的估计。