DE69807535D1 - Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen - Google Patents

Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen

Info

Publication number
DE69807535D1
DE69807535D1 DE69807535T DE69807535T DE69807535D1 DE 69807535 D1 DE69807535 D1 DE 69807535D1 DE 69807535 T DE69807535 T DE 69807535T DE 69807535 T DE69807535 T DE 69807535T DE 69807535 D1 DE69807535 D1 DE 69807535D1
Authority
DE
Germany
Prior art keywords
impulse response
received signals
channel
channel impulse
improving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69807535T
Other languages
English (en)
Other versions
DE69807535T2 (de
Inventor
Olli Piirainen
Aki Happonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69807535D1 publication Critical patent/DE69807535D1/de
Publication of DE69807535T2 publication Critical patent/DE69807535T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
DE69807535T 1998-11-18 1998-11-18 Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen Expired - Fee Related DE69807535T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/007393 WO2000030275A1 (en) 1998-11-18 1998-11-18 A method for improved channel impulse response estimation in tdma systems

Publications (2)

Publication Number Publication Date
DE69807535D1 true DE69807535D1 (de) 2002-10-02
DE69807535T2 DE69807535T2 (de) 2003-04-24

Family

ID=8167134

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69807535T Expired - Fee Related DE69807535T2 (de) 1998-11-18 1998-11-18 Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen

Country Status (7)

Country Link
US (1) US6631160B2 (de)
EP (1) EP1147624B1 (de)
AT (1) ATE223122T1 (de)
AU (1) AU1873899A (de)
DE (1) DE69807535T2 (de)
ES (1) ES2178296T3 (de)
WO (1) WO2000030275A1 (de)

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EP1147623B1 (de) * 1998-11-18 2003-07-02 Nokia Corporation Verfahren zum verändern der kanalimpulsantwort in tdma-systemen
JP2003500897A (ja) * 1999-05-17 2003-01-07 ノキア コーポレイション Ｔｄｍａシステムにおけるノイズエネルギー推定方法
EP1197027A1 (de) 1999-07-27 2002-04-17 Nokia Corporation Geräuschschätzungs-verfahren
US7079601B2 (en) * 2001-06-19 2006-07-18 Telefonaktiebolaget Lm Ericsson (Publ) Efficient channel estimation in a digital communications system
US6816470B2 (en) * 2001-09-18 2004-11-09 Interdigital Technology Corporation Method and apparatus for interference signal code power and noise variance estimation
GB0124321D0 (en) * 2001-10-10 2001-11-28 Nokia Corp Modulation determination
US7190665B2 (en) * 2002-04-19 2007-03-13 Texas Instruments Incorporated Blind crosstalk cancellation for multicarrier modulation
US7239679B2 (en) * 2002-05-29 2007-07-03 Zenith Electronics Corporation Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (CIR) estimate
EP1379040A1 (de) * 2002-07-03 2004-01-07 Motorola, Inc. Anordnung und Verfahren zur iterativen Schätzung der Kanalimpulsantwort
GB2395623B (en) * 2002-11-19 2006-02-22 Matsushita Electric Ind Co Ltd Reduced complexity dynamic tap search channel estimator
KR100708272B1 (ko) * 2003-01-10 2007-04-17 인터디지탈 테크날러지 코포레이션 일반화 2단 데이터 추정
US7203257B2 (en) * 2003-05-23 2007-04-10 Zenith Electronics Corporation Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads
US8149960B2 (en) * 2003-05-23 2012-04-03 Zenith Electronics Llc Channel estimation for frequency selective multipath channels with long delay spreads based on an assumed physical channel
US20050031018A1 (en) * 2003-06-27 2005-02-10 Nokia Corporation Zero-padded OFDM with improved performance over multipath channels
US20050063298A1 (en) * 2003-09-02 2005-03-24 Qualcomm Incorporated Synchronization in a broadcast OFDM system using time division multiplexed pilots
KR20050040615A (ko) * 2003-10-29 2005-05-03 삼성전자주식회사 훈련열 데이터를 이용하여 채널을 추정하는 디지털수신기를 위한 채널 추정 장치 및 그 방법
US20050163263A1 (en) * 2004-01-28 2005-07-28 Gupta Alok K. Systems and methods for frequency acquisition in a wireless communication network
US8724447B2 (en) * 2004-01-28 2014-05-13 Qualcomm Incorporated Timing estimation in an OFDM receiver
US8433005B2 (en) * 2004-01-28 2013-04-30 Qualcomm Incorporated Frame synchronization and initial symbol timing acquisition system and method
US20090190675A1 (en) * 2004-08-31 2009-07-30 Qualcomm Incorporated Synchronization in a broadcast ofdm system using time division multiplexed pilots
FI20055368A0 (fi) * 2005-06-30 2005-06-30 Nokia Corp Vastaanotin ja menetelmä vastaanotetun datan käsittelemiseksi
US8345733B2 (en) * 2005-09-13 2013-01-01 At&T Intellectual Property I, Lp Method and apparatus for equalizing signals
WO2009003129A2 (en) * 2007-06-27 2008-12-31 Rambus Inc. Methods and circuits for adaptive equalization and channel characterization using live data
FI20085457A0 (fi) * 2008-05-15 2008-05-15 Nokia Corp Laite, menetelmä ja tietokoneohjelma demodulaatiota varten
JP4561880B2 (ja) * 2008-06-11 2010-10-13 ソニー株式会社 通信装置、通信方法およびコンピュータプログラム
KR101152808B1 (ko) * 2010-03-16 2012-06-12 서강대학교산학협력단 잡음 분산 추정 방법 및 이를 이용하는 수신기
US8509330B2 (en) * 2010-09-30 2013-08-13 Mitsubishi Electric Research Laboratories, Inc. Method for estimating time-varying and frequency-selective channels
KR20120047449A (ko) * 2010-11-04 2012-05-14 삼성전자주식회사 가중치를 고려하는 피아이씨 채널 추정기를 위한 방법 및 장치
JP2013046131A (ja) * 2011-08-23 2013-03-04 Mitsubishi Electric Research Laboratories Inc 時間変化的および周波数選択的なチャネルを推定するための方法
US9007942B2 (en) * 2012-08-02 2015-04-14 Qualcomm Incorporated Iterative covariance inversion based on linear receiver designs
RU2544178C1 (ru) * 2013-10-11 2015-03-10 Открытое акционерное общество "Камчатский гидрофизический институт" (ОАО "КГФИ") Устройство для приема дискретных сигналов, прошедших многолучевой канал связи
CN114866167B (zh) * 2022-04-18 2024-08-06 哲库科技(北京)有限公司 信道参数估计方法、装置、设备、存储介质及程序产品

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US5251233A (en) 1990-12-20 1993-10-05 Motorola, Inc. Apparatus and method for equalizing a corrupted signal in a receiver
US5214675A (en) * 1991-07-02 1993-05-25 Motorola, Inc. System and method for calculating channel gain and noise variance of a communication channel
FI98018C (fi) 1994-08-18 1997-03-25 Nokia Mobile Phones Ltd Menetelmä ja laite radiokanavan impulssivasteen mittaamiseksi
FI103539B (fi) * 1996-07-03 1999-07-15 Nokia Telecommunications Oy Menetelmä samankanavasignaalien voimakkuuden määrittämiseksi ja vastaa notin
ATE270482T1 (de) 1998-07-21 2004-07-15 Nokia Corp Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal
US6373888B1 (en) * 1998-10-09 2002-04-16 Telefonaktiebolaget Lm Ericsson (Publ) Estimated channel with variable number of taps

Also Published As

Publication number Publication date
AU1873899A (en) 2000-06-05
ATE223122T1 (de) 2002-09-15
WO2000030275A1 (en) 2000-05-25
EP1147624A1 (de) 2001-10-24
DE69807535T2 (de) 2003-04-24
US20020024994A1 (en) 2002-02-28
EP1147624B1 (de) 2002-08-28
ES2178296T3 (es) 2002-12-16
US6631160B2 (en) 2003-10-07

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee