ATE223122T1 - Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen - Google Patents

Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen

Info

Publication number
ATE223122T1
ATE223122T1 AT98963478T AT98963478T ATE223122T1 AT E223122 T1 ATE223122 T1 AT E223122T1 AT 98963478 T AT98963478 T AT 98963478T AT 98963478 T AT98963478 T AT 98963478T AT E223122 T1 ATE223122 T1 AT E223122T1
Authority
AT
Austria
Prior art keywords
channel
received signals
pulse response
noise
channel pulse
Prior art date
Application number
AT98963478T
Other languages
English (en)
Inventor
Olli Piirainen
Aki Happonen
Original Assignee
Nokia Corp
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 Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE223122T1 publication Critical patent/ATE223122T1/de

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)
AT98963478T 1998-11-18 1998-11-18 Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen ATE223122T1 (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 (1)

Publication Number Publication Date
ATE223122T1 true ATE223122T1 (de) 2002-09-15

Family

ID=8167134

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98963478T ATE223122T1 (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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Publication number Priority date Publication date Assignee Title
CN1124699C (zh) * 1998-11-18 2003-10-15 诺基亚网络有限公司 一种修改tdma系统中信道脉冲响应的方法和设备
AU4362299A (en) * 1999-05-17 2000-12-05 Nokia Corporation A method for noise energy estimation in tdma systems
WO2001008341A1 (en) 1999-07-27 2001-02-01 Nokia Corporation A method for noise energy estimation
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 Industrial Co Ltd Reduced complexity dynamic tap search channel estimator
MXPA05007461A (es) * 2003-01-10 2005-09-12 Interdigital Tech Corp Estimacion generalizada de datos en dos etapas.
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
US8433005B2 (en) * 2004-01-28 2013-04-30 Qualcomm Incorporated Frame synchronization and initial symbol timing acquisition system and method
US8724447B2 (en) * 2004-01-28 2014-05-13 Qualcomm Incorporated Timing estimation in an OFDM receiver
US20050163263A1 (en) * 2004-01-28 2005-07-28 Gupta Alok K. Systems and methods for frequency acquisition in a wireless communication network
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI103539B1 (fi) * 1996-07-03 1999-07-15 Nokia Telecommunications Oy Menetelmä samankanavasignaalien voimakkuuden määrittämiseksi ja vastaanotin
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
US6631160B2 (en) 2003-10-07
ES2178296T3 (es) 2002-12-16
EP1147624A1 (de) 2001-10-24
US20020024994A1 (en) 2002-02-28
AU1873899A (en) 2000-06-05
WO2000030275A1 (en) 2000-05-25
DE69807535T2 (de) 2003-04-24
EP1147624B1 (de) 2002-08-28
DE69807535D1 (de) 2002-10-02

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Legal Events

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