公开(公告)号：US07596172B2

公开(公告)日：2009-09-29

申请号：US10849844

申请日：2004-05-21

申请人： Myeong-Ae Kang

发明人： Myeong-Ae Kang

IPC分类号： H04B1/707

CPC分类号： H04B1/7115 ,  H04B1/7117

摘要： Disclosed is a rake receiver in a mobile communication system and a control method therefor which receives signals transmitted from a base transceiver subsystem through multiple paths. The rake receiver comprises a plurality of fingers for independently demodulating multipath signals when a signal is received through multiple paths; a searcher for checking intensity levels of received signals, detecting valid paths through which signals having intensity levels above a predetermined level are received, and outputting information about the valid paths; and a controller for selecting and enabling fingers corresponding to the valid paths and transmitting signals received through corresponding paths to the enabled fingers in accordance with the information about the valid paths output from the searcher, and if information about at least one new valid path is received from the searcher, selecting and enabling fingers corresponding to the new valid paths and simultaneously providing position information.

摘要翻译： 公开了一种移动通信系统中的耙式接收机及其控制方法，其接收通过多条路径从基地收发机子系统发送的信号。 耙式接收机包括多个手指，用于当通过多个路径接收信号时独立地解调多路径信号; 用于检查接收信号的强度水平的检测器，检测接收到具有高于预定水平的信号的有效路径，并输出有关有效路径的信息; 以及控制器，用于根据关于从搜索者输出的有效路径的信息，选择和启用与有效路径相对应的手指并将通过相应路径接收的信号发送到使能的手指，并且如果接收到关于至少一个新的有效路径的信息 从搜索器中选择并启用与新的有效路径对应的手指并同时提供位置信息。

公开(公告)号：US20080181325A1

公开(公告)日：2008-07-31

申请号：US12023215

申请日：2008-01-31

申请人： Jeong-Soon Park ,  Jong-Han Lim ,  Min-Cheol Park ,  Myeong-Ae Kang ,  Heon Huh ,  Jae-Yong Lee ,  Yoo-Chang Eun

发明人： Jeong-Soon Park ,  Jong-Han Lim ,  Min-Cheol Park ,  Myeong-Ae Kang ,  Heon Huh ,  Jae-Yong Lee ,  Yoo-Chang Eun

IPC分类号： H04K1/10

CPC分类号： H04L27/2647 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0232

摘要： An apparatus and method for estimating a channel in an Orthogonal Frequency Division Multiplexing (OFDM) system is provided. The apparatus and method includes estimating a channel corresponding to a pilot of a received signal, performing a first estimation on a data channel by performing time-domain linear interpolation on pilots of previous and next symbols of the pilot using the channel estimate, performing Infinite Impulse Response (IIR) filtering on the channel estimate and the data channel estimate of the pilots of the previous and next symbols of the pilot, and performing a second estimation on the data channel by performing frequency-domain linear interpolation on a remaining zone which excludes the pilot and the zone that underwent the first estimation.

摘要翻译： 提供了一种用于估计正交频分复用（OFDM）系统中的信道的装置和方法。 该装置和方法包括：估计与接收信号的导频相对应的信道，通过使用信道估计对导频的先前和下一个符号的导频执行时域线性插值，对数据信道执行第一估计，执行无限脉冲 对导频的前一个和下一个符号的信道估计和导频的数据信道估计进行响应（IIR）滤波，并且对剩余的区域执行频域线性插值，对数据信道执行第二估计， 飞行员和经过第一次估计的区域。