BR9811553A - Receptor de dados em rajada auto-adaptavelmente equalizado e processo para dados de banda larga de fluxo contrário - Google Patents

Receptor de dados em rajada auto-adaptavelmente equalizado e processo para dados de banda larga de fluxo contrário

Info

Publication number
BR9811553A
BR9811553A BR9811553-7A BR9811553A BR9811553A BR 9811553 A BR9811553 A BR 9811553A BR 9811553 A BR9811553 A BR 9811553A BR 9811553 A BR9811553 A BR 9811553A
Authority
BR
Brazil
Prior art keywords
burst
preamble
self
reverse flow
data transmission
Prior art date
Application number
BR9811553-7A
Other languages
English (en)
Inventor
Bruce Currivan
Original Assignee
Stanford Telecomm Inc
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 Stanford Telecomm Inc filed Critical Stanford Telecomm Inc
Publication of BR9811553A publication Critical patent/BR9811553A/pt

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
    • H04L25/03—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
    • H04L2025/03401—PSK
    • 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
    • H04L2025/0342—QAM
    • 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
    • H04L2025/03605—Block 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
    • H04L2025/03617—Time recursive 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
    • H04L2025/03726—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
    • 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
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03783—Details of reference signals
    • H04L2025/03789—Codes therefore
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H04L2027/0042—Correction of carrier offset using an equaliser the equaliser providing the offset correction per se
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Sliding Valves (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Dc Digital Transmission (AREA)
  • Circuits Of Receivers In General (AREA)
  • Communication Control (AREA)

Abstract

Patente de Invenção: <B>"RECEPTOR DE DADOS EM RAJADA AUTO-ADAPTAVELMENTE EQUALIZADO E PROCESSO PARA DADOS DE BANDA LARGA DE FLUXO CONTRáRIO"<D>. Um receptor de modo digital para a recepção de sinais provenientes de múltiplos assinantes independentes, como em um sistema de transmissão de dados de banda larga bidirecional de televisão a cabo, apropriado para consultas de assinante e transmissão de dados bidirecional. Cada rajada (fig. 2) compreende uma parte de preâmbulo fixa e uma parte de dados variável. A rajada recebida é amostrada e alimentada a uma memória intermediária de amostras (4). A saída da parte de preâmbulo é usada para inicializar um equalizador (6), e sincronizar portadora e relógio de modulação. Pelo repetir o processamento do preâmbulo e opcionalmente toda ou parte de cada rajada, a precisão de detecção dos dados variáveis é aperfeiçoada, de forma que é viável receber rajada individual sem coordenação de rajada para rajada, enquanto usando um curto preâmbulo para eficiência aumentada.
BR9811553-7A 1997-07-25 1998-07-24 Receptor de dados em rajada auto-adaptavelmente equalizado e processo para dados de banda larga de fluxo contrário BR9811553A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/898,849 US5970092A (en) 1997-07-25 1997-07-25 Adaptively equalized burst receiver and method for upstream broadband data
PCT/US1998/014809 WO1999005787A1 (en) 1997-07-25 1998-07-24 Adaptively equalized burst receiver and method for upstream broadband data

Publications (1)

Publication Number Publication Date
BR9811553A true BR9811553A (pt) 2000-09-12

Family

ID=25410124

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811553-7A BR9811553A (pt) 1997-07-25 1998-07-24 Receptor de dados em rajada auto-adaptavelmente equalizado e processo para dados de banda larga de fluxo contrário

Country Status (7)

Country Link
US (1) US5970092A (pt)
EP (2) EP1062444A4 (pt)
AT (1) ATE408293T1 (pt)
BR (1) BR9811553A (pt)
CA (1) CA2295969A1 (pt)
DE (1) DE69839998D1 (pt)
WO (1) WO1999005787A1 (pt)

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US6721365B1 (en) * 2000-04-18 2004-04-13 Shih-Chung Yin Receiver for a home phone-lines LAN system
US20020021750A1 (en) * 2000-05-12 2002-02-21 Belotserkovsky Maxim B. Method and apparatus for selective equalizer tap initialization in an OFDM system
US6654594B1 (en) * 2000-05-30 2003-11-25 Motorola, Inc. Digitized automatic gain control system and methods for a controlled gain receiver
US8363744B2 (en) 2001-06-10 2013-01-29 Aloft Media, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
WO2002101341A2 (en) * 2001-06-08 2002-12-19 Broadcom Corporation Receiver having integrated spectral analysis capability
US7394864B2 (en) * 2001-07-06 2008-07-01 Conexant, Inc. Mixed waveform configuration for wireless communications
US7110447B2 (en) 2002-05-09 2006-09-19 Zenith Electronics Corporation Channel estimator for an adaptive equalizer
US7289580B2 (en) * 2002-05-31 2007-10-30 Zenith Electronics Corporation Channel estimator using one or more correlation reference vectors to eliminate data related noise
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Also Published As

Publication number Publication date
EP0998785B1 (en) 2008-09-10
WO1999005787B1 (en) 1999-04-15
EP1062444A1 (en) 2000-12-27
US5970092A (en) 1999-10-19
ATE408293T1 (de) 2008-09-15
DE69839998D1 (de) 2008-10-23
WO1999005787A1 (en) 1999-02-04
EP1062444A4 (en) 2001-04-11
EP0998785A1 (en) 2000-05-10
CA2295969A1 (en) 1999-02-04
EP0998785A4 (en) 2004-05-26

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

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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 8.6 PUBLICADO NA RPI 1909 DE 07/08/2007.