KR20030025175A - Ｏｆｄｍ 시스템에서의 선택적인 등화기 탭 초기화를 위한방법 및 장치 - Google Patents

Ｏｆｄｍ 시스템에서의 선택적인 등화기 탭 초기화를 위한방법 및 장치 Download PDF

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Publication number
KR20030025175A
KR20030025175A KR1020020052698A KR20020052698A KR20030025175A KR 20030025175 A KR20030025175 A KR 20030025175A KR 1020020052698 A KR1020020052698 A KR 1020020052698A KR 20020052698 A KR20020052698 A KR 20020052698A KR 20030025175 A KR20030025175 A KR 20030025175A
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KR
South Korea
Prior art keywords
tap
equalizer
initialization
initializing
ofdm signal
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.)
Withdrawn
Application number
KR1020020052698A
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English (en)
Korean (ko)
Inventor
맥심 비. 베로트세르코브스키
루이스 로버트 쥬니어. 리트윈
Original Assignee
톰슨 라이센싱 소시에떼 아노님
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.)
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Application filed by 톰슨 라이센싱 소시에떼 아노님 filed Critical 톰슨 라이센싱 소시에떼 아노님
Publication of KR20030025175A publication Critical patent/KR20030025175A/ko
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03656—Initialisation
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03681—Control of adaptation
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03681—Control of adaptation
    • H04L2025/037—Detection of convergence state
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03726—Switching between algorithms
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03745—Timing of adaptation
    • H04L2025/03764—Timing of adaptation only during predefined intervals
    • H04L2025/0377—Timing of adaptation only during predefined intervals during the reception of training signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
KR1020020052698A 2001-09-19 2002-09-03 Ｏｆｄｍ 시스템에서의 선택적인 등화기 탭 초기화를 위한방법 및 장치 Withdrawn KR20030025175A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/955,651 2001-09-19
US09/955,651 US20020021750A1 (en) 2000-05-12 2001-09-19 Method and apparatus for selective equalizer tap initialization in an OFDM system

Publications (1)

Publication Number Publication Date
KR20030025175A true KR20030025175A (ko) 2003-03-28

Family

ID=25497142

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020052698A Withdrawn KR20030025175A (ko) 2001-09-19 2002-09-03 Ｏｆｄｍ 시스템에서의 선택적인 등화기 탭 초기화를 위한방법 및 장치

Country Status (7)

Country Link
US (1) US20020021750A1 (https=)
EP (1) EP1303092A3 (https=)
JP (1) JP2003124908A (https=)
KR (1) KR20030025175A (https=)
CN (1) CN1409505A (https=)
BR (1) BR0203545A (https=)
MX (1) MXPA02009137A (https=)

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US20030161415A1 (en) * 2002-02-26 2003-08-28 Eyal Krupka Iterative channel tracking
US7103098B2 (en) * 2002-03-15 2006-09-05 Intel Corporation Adaptive receiver for multiplex/multi-access communications
US7177354B2 (en) * 2003-04-22 2007-02-13 Zenith Electronics Corporation Method and apparatus for the control of a decision feedback equalizer
GB2406758B (en) * 2003-09-30 2006-04-19 Ubinetics Ltd Equalisation techniques
US7437135B2 (en) * 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) * 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7321550B2 (en) * 2004-02-17 2008-01-22 Industrial Technology Research Institute Method of equalization in an OFDM system
GB2439366A (en) * 2006-06-20 2007-12-27 Nec Technologies Resource block scheduling in communication networks
US7852914B2 (en) * 2006-12-20 2010-12-14 Broadcom Corporation Fade equalizer
US7738548B2 (en) * 2007-01-08 2010-06-15 Harris Corporation System and method for communicating at low signal-to-noise ratio using injected training symbols
CA2703484A1 (en) * 2007-10-31 2009-05-07 Thomson Licensing Synchronizing initialization data to time bursts in a mobile communications system
US8934526B2 (en) * 2010-06-28 2015-01-13 Miguel Marquina Improvements relating to equalizers
US9197455B2 (en) * 2011-08-12 2015-11-24 Tektronix, Inc. Two stage adaptive equalizer for a batch receiver
US8971463B2 (en) * 2011-11-18 2015-03-03 Vixs Systems, Inc. Channel estimation in a communications system
WO2014186610A1 (en) * 2013-05-16 2014-11-20 Zte (Usa) Inc. Half-cycled orthogonal frequency divisional multiplexing transmission and reception

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JP2649766B2 (ja) * 1993-01-20 1997-09-03 国際電信電話株式会社 等化後選択合成ダイバーシチ受信方式
US5841484A (en) * 1994-02-10 1998-11-24 Philips Electronics North North America Corporation Blind equalizer method and apparatus for HDTY transmission using an NTSC rejection filter for mitigating co-channel interference
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DE69725995T2 (de) * 1996-08-29 2004-11-11 Cisco Technology, Inc., San Jose Raumzeitliche signalverarbeitung für übertragungssysteme
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Also Published As

Publication number Publication date
EP1303092A2 (en) 2003-04-16
JP2003124908A (ja) 2003-04-25
CN1409505A (zh) 2003-04-09
US20020021750A1 (en) 2002-02-21
MXPA02009137A (es) 2005-07-25
BR0203545A (pt) 2003-06-03
EP1303092A3 (en) 2006-07-12

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20020903

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid