ES2172486T1 - Decodificador viterbi de canales multiples. - Google Patents

Decodificador viterbi de canales multiples.

Info

Publication number
ES2172486T1
ES2172486T1 ES01120761T ES01120761T ES2172486T1 ES 2172486 T1 ES2172486 T1 ES 2172486T1 ES 01120761 T ES01120761 T ES 01120761T ES 01120761 T ES01120761 T ES 01120761T ES 2172486 T1 ES2172486 T1 ES 2172486T1
Authority
ES
Spain
Prior art keywords
encoded
data signal
symbols
decoder
viterbi
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.)
Granted
Application number
ES01120761T
Other languages
English (en)
Other versions
ES2172486T3 (es
Inventor
John D Kaewell Jr
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology 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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of ES2172486T1 publication Critical patent/ES2172486T1/es
Application granted granted Critical
Publication of ES2172486T3 publication Critical patent/ES2172486T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4107—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing add, compare, select [ACS] operations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4161—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management
    • H03M13/4169—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management using traceback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • H03M13/6505—Memory efficient implementations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6569—Implementation on processors, e.g. DSPs, or software implementations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0046—Code rate detection or code type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • H04L1/0053—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables specially adapted for power saving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0075—Transmission of coding parameters to receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • 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
    • H04L2025/03675—Blind algorithms using gradient methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transceivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

Un decodificador para decodificar simultáneamente una pluralidad de señales de datos codificadas recibidos de forma convolucionada, teniendo al menos dos de las señales codificadas una velocidad de datos diferente, comprendiendo el decodificador: - un Circuito de Cálculo de Distancia Euclidiana que tiene una entrada configurada para recibir los símbolos I y Q no decodificados de la pluralidad de señales de datos codificadas y emitiendo distancias Euclidianas correspondientes a cada señal codificada basada en parte por los símbolos de I y Q recibidos; para cada señal de datos, un circuito de Suma-Comparación-Selección que tiene una entrada configurada para recibir estas distancias Euclidianas del canal y disponiendo estas distancias de señales de datos sobre un retículo; y - un circuito de proceso de seguimiento para seguir las decisiones en cada retículo de señal de datos para emitir los símbolos de decodificados de cada señal de datos.
ES01120761T 1997-03-12 1998-03-04 Descodificador de viterbi multicanal. Expired - Lifetime ES2172486T3 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4047797P 1997-03-12 1997-03-12
US40477P 1997-03-12
US871008 1997-06-06
US08/871,008 US6005898A (en) 1997-03-12 1997-06-06 Multichannel viterbi decoder

Publications (2)

Publication Number Publication Date
ES2172486T1 true ES2172486T1 (es) 2002-10-01
ES2172486T3 ES2172486T3 (es) 2004-12-16

Family

ID=26717094

Family Applications (8)

Application Number Title Priority Date Filing Date
ES01120763T Expired - Lifetime ES2172488T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.
ES01120761T Expired - Lifetime ES2172486T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.
ES10179535T Expired - Lifetime ES2387708T3 (es) 1997-03-12 1998-03-04 Método y aparato para comunicación inalámbrica
ES04009884T Expired - Lifetime ES2268532T3 (es) 1997-03-12 1998-03-04 Descodificador viterbi multicanal.
ES01120762T Expired - Lifetime ES2172487T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES07025032T Expired - Lifetime ES2386278T3 (es) 1997-03-12 1998-03-04 Método y aparato para la adaptación de la velocidad de datos en un sistema de comunicación de AMDC
ES98908938T Expired - Lifetime ES2146560T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES06012665T Expired - Lifetime ES2300083T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES01120763T Expired - Lifetime ES2172488T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.

Family Applications After (6)

Application Number Title Priority Date Filing Date
ES10179535T Expired - Lifetime ES2387708T3 (es) 1997-03-12 1998-03-04 Método y aparato para comunicación inalámbrica
ES04009884T Expired - Lifetime ES2268532T3 (es) 1997-03-12 1998-03-04 Descodificador viterbi multicanal.
ES01120762T Expired - Lifetime ES2172487T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES07025032T Expired - Lifetime ES2386278T3 (es) 1997-03-12 1998-03-04 Método y aparato para la adaptación de la velocidad de datos en un sistema de comunicación de AMDC
ES98908938T Expired - Lifetime ES2146560T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES06012665T Expired - Lifetime ES2300083T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.

Country Status (10)

Country Link
US (2) US6005898A (es)
EP (8) EP1161018B1 (es)
JP (1) JP3988956B2 (es)
CN (2) CN1109414C (es)
AT (7) ATE382208T1 (es)
DE (7) DE69825328T2 (es)
DK (6) DK1161017T3 (es)
ES (8) ES2172488T3 (es)
HK (3) HK1041385B (es)
WO (1) WO1998040971A1 (es)

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Also Published As

Publication number Publication date
ES2172488T1 (es) 2002-10-01
DE69835177D1 (de) 2006-08-17
EP1161018A2 (en) 2001-12-05
ATE272271T1 (de) 2004-08-15
EP1895671A2 (en) 2008-03-05
ATE224118T1 (de) 2002-09-15
EP1161017B1 (en) 2004-05-26
ES2172486T3 (es) 2004-12-16
DE69838922D1 (de) 2008-02-07
CN1278498C (zh) 2006-10-04
HK1041387B (en) 2004-12-10
DE69824051T2 (de) 2004-10-21
HK1067253A1 (en) 2005-04-01
CN1442957A (zh) 2003-09-17
DE69835177T2 (de) 2007-06-14
EP2259440B1 (en) 2012-05-23
HK1041386B (en) 2005-02-04
DK1161019T3 (da) 2004-08-16
ES2386278T3 (es) 2012-08-16
HK1114509A1 (en) 2008-10-31
DE69824051D1 (de) 2004-06-24
EP1439640A2 (en) 2004-07-21
DK1696584T3 (da) 2008-03-17
ATE332592T1 (de) 2006-07-15
CN1250558A (zh) 2000-04-12
EP2259440A1 (en) 2010-12-08
ES2146560T3 (es) 2003-03-16
EP0966796B1 (en) 2002-09-11
ATE267483T1 (de) 2004-06-15
DE69824208T2 (de) 2005-06-23
HK1041385B (en) 2004-10-08
DE69824208D1 (de) 2004-07-01
ES2172487T1 (es) 2002-10-01
EP1439640B1 (en) 2006-07-05
JP3988956B2 (ja) 2007-10-10
HK1094840A1 (en) 2007-04-13
ES2172488T3 (es) 2004-12-01
JP2001514829A (ja) 2001-09-11
DE69807850T2 (de) 2003-05-28
DK1161018T3 (da) 2004-11-29
CN1109414C (zh) 2003-05-21
US6256339B1 (en) 2001-07-03
EP1161017A3 (en) 2002-10-30
ATE382208T1 (de) 2008-01-15
EP1161019A3 (en) 2002-10-30
ATE555552T1 (de) 2012-05-15
DE69825328D1 (de) 2004-09-02
WO1998040971A1 (en) 1998-09-17
EP1161019B1 (en) 2004-05-19
DE69838922T2 (de) 2008-12-18
EP1161019A2 (en) 2001-12-05
DK1161017T3 (da) 2004-08-16
EP1895671A3 (en) 2008-04-30
DK2259440T3 (da) 2012-08-20
ES2146560T1 (es) 2000-08-16
ES2387708T3 (es) 2012-09-28
HK1041387A1 (en) 2002-07-05
EP1161018B1 (en) 2004-07-28
US6005898A (en) 1999-12-21
EP1161017A2 (en) 2001-12-05
EP1696584B1 (en) 2007-12-26
ATE268074T1 (de) 2004-06-15
EP0966796A1 (en) 1999-12-29
DE966796T1 (de) 2000-10-05
DE69825328T2 (de) 2005-08-18
DE69807850D1 (de) 2002-10-17
HK1041386A1 (en) 2002-07-05
ES2172487T3 (es) 2004-12-16
EP1696584A1 (en) 2006-08-30
DK1439640T3 (da) 2006-10-30
ES2268532T3 (es) 2007-03-16
EP1161018A3 (en) 2002-10-30
ES2300083T3 (es) 2008-06-01
HK1041385A1 (en) 2002-07-05
EP1895671B1 (en) 2012-04-25
EP1439640A3 (en) 2005-05-11
HK1024357A1 (en) 2000-10-27

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