公开(公告)号：KR20120070350A

公开(公告)日：2012-06-29

申请号：KR20100131871

申请日：2010-12-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHOI SUNG WOO ,  LEE WOO YONG ,  CHUNG HYUN KYU

IPC: H04W88/02 ,  H04B1/7103

CPC classification number: Y02D70/00 ,  Y02D70/40 ,  H04W88/02 ,  H03H17/0254 ,  H04B1/7093

Abstract: PURPOSE: A wireless communication terminal equipped with a matched filter is provided to execute a mode with low power according to characteristic of received signals by selectively operating the matched filter according to the existence of a multiple path. CONSTITUTION: A switch(10) separates and outputs channel estimation signals and data signals from a received frame. A cross correlator(20) receives the channel estimation signals and calculates pre-set channel estimation signals and cross correlation values. A comparing counter(30) counts the number of symbols with higher absolute values of the cross correlation values compared to a reference value. A matched filter(50) receives the cross correlation values and executes a matched filtering process. A multiplexer(40) receives the data signals from the switch and outputs the data signals to the matched filter or bypasses the data signals according to the output of the comparing counter.

Abstract translation: 目的：提供配备有匹配滤波器的无线通信终端，根据接收信号的特性，根据多路径的存在选择性地运行匹配滤波器，执行低功率模式。 构成：开关（10）从接收到的帧分离并输出信道估计信号和数据信号。 互相关器（20）接收信道估计信号并且计算预设信道估计信号和互相关值。 比较计数器（30）对与参考值相比较的具有较高的互相关值绝对值的符号数进行计数。 匹配滤波器（50）接收互相关值并执行匹配滤波处理。 复用器（40）从开关接收数据信号，并将数据信号输出到匹配滤波器，或者根据比较计数器的输出旁路数据信号。