公开(公告)号：KR1020010064261A

公开(公告)日：2001-07-09

申请号：KR1019990062411

申请日：1999-12-27

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  박승영 ,  강충구 ,  오행석 ,  진병문

IPC: H04B1/7097

CPC classification number: H04L25/0232 ,  H04L5/0048 ,  H04L27/2695

Abstract: PURPOSE: A channel estimator of a multi channel CDMA(Code Division Multiple Access) system and an estimating method thereof are provided to set up mutually different average blocks per each channel, so that more than two data channels requesting different quality of service exist. CONSTITUTION: Pilot signal processing units(31,32) de-spread pilot channels, and average pilot symbols during predetermined blocks, to output an estimating temporary channel coefficient. A temporary data detector(33) detects temporary data for each data channel, using signals of multi data channels and the estimating temporary channel coefficient. Multi data channel averaging units(35,37) average corresponding data channels during predetermined blocks, to estimate a temporary channel coefficient reducing the influence by a symbol error and interruption of the data channel. A summer(39) sums channel coefficients estimated from the pilot signal processing units(31,32) and the multi data channel averaging units(35,37), to output a final channel coefficient.

Abstract translation: 目的：提供多通道CDMA（码分多址）系统的信道估计器及其估计方法，以建立每个信道的相互不同的平均块，从而存在两个以上请求不同服务质量的数据信道。 构成：导频信号处理单元（31,32）解扩导频信道，以及预定块期间的平均导频符号，以输出估计临时信道系数。 临时数据检测器（33）使用多数据信道的信号和估计临时信道系数来检测每个数据信道的临时数据。 多数据信道平均单元（35,37）在预定块期间平均相应的数据信道，以估计减少符号误差和数据信道中断的影响的临时信道系数。 夏季（39）对从导频信号处理单元（31,32）和多数据信道平均单元（35,37）估计的信道系数求和，以输出最终的信道系数。