KR101068061B1 - 적응형 등화기 길이를 가진 통신 수신기 - Google Patents

적응형 등화기 길이를 가진 통신 수신기 Download PDF

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Publication number
KR101068061B1
KR101068061B1 KR1020057015257A KR20057015257A KR101068061B1 KR 101068061 B1 KR101068061 B1 KR 101068061B1 KR 1020057015257 A KR1020057015257 A KR 1020057015257A KR 20057015257 A KR20057015257 A KR 20057015257A KR 101068061 B1 KR101068061 B1 KR 101068061B1
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South Korea
Prior art keywords
equalizer
length
signal
estimating
delay
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Expired - Fee Related
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KR1020057015257A
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English (en)
Korean (ko)
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KR20050098953A (ko
Inventor
더가 프라사드 맬라디
요제프 블란츠
용빈 웨이
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퀄컴 인코포레이티드
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
KR1020057015257A 2003-02-18 2004-02-17 적응형 등화기 길이를 가진 통신 수신기 Expired - Fee Related KR101068061B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/369,287 US7085317B2 (en) 2003-02-18 2003-02-18 Communication receiver with an adaptive equalizer length
US10/369,287 2003-02-18

Publications (2)

Publication Number Publication Date
KR20050098953A KR20050098953A (ko) 2005-10-12
KR101068061B1 true KR101068061B1 (ko) 2011-09-28

Family

ID=32850311

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020057015257A Expired - Fee Related KR101068061B1 (ko) 2003-02-18 2004-02-17 적응형 등화기 길이를 가진 통신 수신기

Country Status (13)

Country Link
US (1) US7085317B2 (https=)
EP (1) EP1595375B1 (https=)
JP (2) JP4728216B2 (https=)
KR (1) KR101068061B1 (https=)
CN (1) CN100558091C (https=)
AT (1) ATE524908T1 (https=)
AU (1) AU2004213984A1 (https=)
BR (1) BRPI0407557A (https=)
CA (1) CA2516181A1 (https=)
MX (1) MXPA05008758A (https=)
RU (1) RU2005129096A (https=)
TW (1) TW200501572A (https=)
WO (1) WO2004075497A1 (https=)

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US7257377B2 (en) * 2003-02-18 2007-08-14 Qualcomm, Incorporated Systems and methods for improving channel estimation
US20040161057A1 (en) * 2003-02-18 2004-08-19 Malladi Durga Prasad Communication receiver with a rake-based adaptive equalizer
US7272176B2 (en) 2003-02-18 2007-09-18 Qualcomm Incorporated Communication receiver with an adaptive equalizer
JP2005159467A (ja) * 2003-11-20 2005-06-16 Sanyo Electric Co Ltd 等化方法およびそれを利用した受信装置
KR100585153B1 (ko) * 2004-08-04 2006-05-30 삼성전자주식회사 다중 경로 지연 추정을 통하여 등화기 성능을 개선한 유무선 통신을 위한 수신기 및 방법
KR101137322B1 (ko) 2005-02-25 2012-04-19 엘지전자 주식회사 디지털 방송 수신기의 채널 등화 장치
US7809336B2 (en) 2005-03-07 2010-10-05 Qualcomm Incorporated Rate selection for a quasi-orthogonal communication system
US7894514B2 (en) * 2005-09-29 2011-02-22 Alcatel-Lucent Usa Inc. Receiver techniques for wireless communication
US8559573B2 (en) * 2005-12-27 2013-10-15 Agere Systems Llc Communications circuit and method with re-positionable sampling span
US7978752B2 (en) * 2006-03-15 2011-07-12 Interdigital Technology Corporation Method and apparatus for switching operating modes of a receiver
US7733951B2 (en) * 2006-09-12 2010-06-08 Mediatek Inc. Equalization method with adjustable equalizer span
US20080240013A1 (en) * 2007-03-30 2008-10-02 Sony Ericsson Mobile Communications Ab Power Control for Compressed Mode in WCDMA System
US8571156B2 (en) * 2007-05-30 2013-10-29 Nxp, B.V. Receiver apparatus
GB201001389D0 (en) 2010-01-28 2010-03-17 Icera Inc A radio receiver in a wireless communication system
GB0806064D0 (en) * 2008-04-03 2008-05-14 Icera Inc Equalisation processing
US8787510B2 (en) * 2008-12-31 2014-07-22 Motorola Mobility Llc Channel selection exploiting multiple observations of the channel delay spread
KR20110018143A (ko) * 2009-08-17 2011-02-23 삼성전자주식회사 이동통신 시스템에서 등화기 수신기 및 방법
US8537884B2 (en) * 2010-11-19 2013-09-17 Qualcomm Incorporated Single path detection and equalizer optimization
GB2487226B (en) * 2011-01-14 2017-03-08 Nvidia Tech Uk Ltd Equalisation of a signal received over a wireless channel
CN102790734B (zh) * 2011-05-18 2014-12-31 中国科学院声学研究所 一种基于信道估计的线性自适应均衡器
US9479360B2 (en) 2014-06-27 2016-10-25 Samsung Electronics Co., Ltd Receiver apparatus and reception method in wireless communication system
US10524161B2 (en) * 2014-08-20 2019-12-31 Qualcomm Incorporated Delay spread estimation and utilization
US9712345B2 (en) 2015-04-06 2017-07-18 Samsung Electronics Co., Ltd Communication device and method of controlling same
CN112013505B (zh) * 2019-05-31 2021-11-02 青岛海尔空调电子有限公司 用于控制通讯补偿的方法及装置、空调

Citations (1)

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US20020012391A1 (en) * 2000-06-20 2002-01-31 Ahn Young-Ho Apparatus and method for adjusting filter tap length of adaptive equalizer by using training sequence

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US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5297165A (en) * 1990-07-06 1994-03-22 Nippon Telegraph And Telephone Corporation Equalizer for radio receive signal
JP2541378B2 (ja) * 1990-12-27 1996-10-09 日本電気株式会社 アダプティブ・フィルタによる未知システム近似の方法及び装置
EP0615347B1 (en) 1992-09-18 2002-05-22 Oki Electric Industry Company, Limited Adaptative equalizing receiver and maximum likelihood sequence estimation receiver
WO1995034139A1 (en) * 1994-06-03 1995-12-14 Motorola Inc. Method and apparatus for subscriber power level adjustment in a communication system
JPH0865205A (ja) * 1994-08-24 1996-03-08 Matsushita Electric Ind Co Ltd Ｃｄｍａ方式移動通信装置
US5636244A (en) * 1995-07-26 1997-06-03 Motorola, Inc. Method and apparatus for initializing equalizer coefficents using peridioc training sequences
JP2991170B2 (ja) * 1997-10-01 1999-12-20 日本電気株式会社 Ｃｄｍａ受信装置および方法
US6466616B1 (en) * 1999-07-02 2002-10-15 Telefonaktiebolaget Lm Ericsson (Publ) Power efficient equalization
JP2001177451A (ja) * 1999-12-15 2001-06-29 Matsushita Electric Ind Co Ltd データ受信装置
US6810070B1 (en) * 2000-01-12 2004-10-26 Ericsson Inc. Selective multi-carrier direct sequence spread spectrum communication systems and methods
JP3435392B2 (ja) * 2000-09-06 2003-08-11 三菱電機株式会社 無線通信方法および無線通信装置
US7193983B2 (en) * 2002-01-17 2007-03-20 Agency For Science, Technology And Research Path diversity equalization CDMA downlink receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020012391A1 (en) * 2000-06-20 2002-01-31 Ahn Young-Ho Apparatus and method for adjusting filter tap length of adaptive equalizer by using training sequence

Also Published As

Publication number Publication date
CN100558091C (zh) 2009-11-04
MXPA05008758A (es) 2006-03-21
EP1595375B1 (en) 2011-09-14
US7085317B2 (en) 2006-08-01
TW200501572A (en) 2005-01-01
EP1595375A1 (en) 2005-11-16
WO2004075497A1 (en) 2004-09-02
JP2006518164A (ja) 2006-08-03
US20040161029A1 (en) 2004-08-19
CN1751487A (zh) 2006-03-22
JP4728216B2 (ja) 2011-07-20
CA2516181A1 (en) 2004-09-02
KR20050098953A (ko) 2005-10-12
RU2005129096A (ru) 2006-01-27
JP2011176808A (ja) 2011-09-08
BRPI0407557A (pt) 2006-02-14
AU2004213984A1 (en) 2004-09-02
ATE524908T1 (de) 2011-09-15

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