BR0203545A - Método e aparelho para inicialização de derivação de equalizador seletivo em um sistema ofdm - Google Patents

Método e aparelho para inicialização de derivação de equalizador seletivo em um sistema ofdm

Info

Publication number
BR0203545A
BR0203545A BR0203545-6A BR0203545A BR0203545A BR 0203545 A BR0203545 A BR 0203545A BR 0203545 A BR0203545 A BR 0203545A BR 0203545 A BR0203545 A BR 0203545A
Authority
BR
Brazil
Prior art keywords
equalizer
initialization
lead
derivation
less
Prior art date
Application number
BR0203545-6A
Other languages
English (en)
Portuguese (pt)
Inventor
Maxim B Belotserkovsky
Louis Robert Litwin
Original Assignee
Thonson Licensing S A
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 Thonson Licensing S A filed Critical Thonson Licensing S A
Publication of BR0203545A publication Critical patent/BR0203545A/pt

Links

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)
BR0203545-6A 2001-09-19 2002-09-11 Método e aparelho para inicialização de derivação de equalizador seletivo em um sistema ofdm BR0203545A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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
BR0203545A true BR0203545A (pt) 2003-06-03

Family

ID=25497142

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0203545-6A BR0203545A (pt) 2001-09-19 2002-09-11 Método e aparelho para inicialização de derivação de equalizador seletivo em um sistema ofdm

Country Status (7)

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

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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
WO2009058265A1 (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
CN105247806B (zh) * 2013-05-16 2018-10-09 中兴通讯(美国)公司 传输和接收正交频分复用信号的方法和装置以及光通信系统

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Also Published As

Publication number Publication date
JP2003124908A (ja) 2003-04-25
EP1303092A3 (en) 2006-07-12
EP1303092A2 (en) 2003-04-16
CN1409505A (zh) 2003-04-09
KR20030025175A (ko) 2003-03-28
MXPA02009137A (es) 2005-07-25
US20020021750A1 (en) 2002-02-21

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A E 6A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1980 DE 16/12/2008.