DE69941553D1 - Faltungsdekodierer mit geänderter Metrik - Google Patents

Faltungsdekodierer mit geänderter Metrik

Info

Publication number
DE69941553D1
DE69941553D1 DE69941553T DE69941553T DE69941553D1 DE 69941553 D1 DE69941553 D1 DE 69941553D1 DE 69941553 T DE69941553 T DE 69941553T DE 69941553 T DE69941553 T DE 69941553T DE 69941553 D1 DE69941553 D1 DE 69941553D1
Authority
DE
Germany
Prior art keywords
convolutional decoder
modified metric
metric
modified
convolutional
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.)
Expired - Lifetime
Application number
DE69941553T
Other languages
English (en)
Inventor
Syed Aon Mujtaba
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69941553D1 publication Critical patent/DE69941553D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03M13/6563—Implementations using multi-port memories
    • 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
    • H03M13/3961—Arrangements of methods for branch or transition metric calculation
    • 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
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization

Landscapes

  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
DE69941553T 1998-06-26 1999-06-15 Faltungsdekodierer mit geänderter Metrik Expired - Lifetime DE69941553D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/105,759 US6477680B2 (en) 1998-06-26 1998-06-26 Area-efficient convolutional decoder

Publications (1)

Publication Number Publication Date
DE69941553D1 true DE69941553D1 (de) 2009-12-03

Family

ID=22307632

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69941553T Expired - Lifetime DE69941553D1 (de) 1998-06-26 1999-06-15 Faltungsdekodierer mit geänderter Metrik

Country Status (4)

Country Link
US (1) US6477680B2 (de)
EP (1) EP0967730B1 (de)
JP (2) JP3604955B2 (de)
DE (1) DE69941553D1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7031407B1 (en) * 1998-09-28 2006-04-18 Ceva D.S.P. Ltd. Apparatus and method for decoding and trace back of convolution codes using the viterbi decoding algorithm
US6690750B1 (en) * 1999-12-23 2004-02-10 Texas Instruments Incorporated Flexible Viterbi decoder for wireless applications
US6741664B1 (en) * 1999-02-05 2004-05-25 Broadcom Corporation Low-latency high-speed trellis decoder
US6542492B1 (en) * 1999-05-28 2003-04-01 Koninklijke Philips Electronics N.V. Method and system of initializing state metrics for traffic, paging, and sync channels to enhance Viterbi decoder performance
US6587519B1 (en) * 1999-05-28 2003-07-01 Koninklijke Philips Electronics N.V. Efficient apparatus and method for generating a trellis code from a shared state counter
US6654929B1 (en) * 1999-10-01 2003-11-25 Matsushita Electric Industrial Co., Ltd. Viterbi decoder and Viterbi decoding method
US7225393B2 (en) 1999-10-01 2007-05-29 Matsushita Electric Industrial Co., Ltd. Viterbi decoder and Viterbi decoding method
US6901118B2 (en) * 1999-12-23 2005-05-31 Texas Instruments Incorporated Enhanced viterbi decoder for wireless applications
FI112711B (fi) 2000-03-17 2003-12-31 Nokia Corp Menetelmä ja laite muistinhallintaan digitaalisessa tiedonsiirrossa
FI109162B (fi) 2000-06-30 2002-05-31 Nokia Corp Menetelmä ja järjestely konvoluutiokoodatun koodisanan dekoodaamiseksi
US6865710B2 (en) * 2000-09-18 2005-03-08 Lucent Technologies Inc. Butterfly processor for telecommunications
JP3876662B2 (ja) 2001-08-03 2007-02-07 三菱電機株式会社 積符号の復号方法および積符号の復号装置
US7191387B1 (en) * 2002-01-15 2007-03-13 Ikanos Communication Inc. Method and apparatus for forward error correction
US6810093B1 (en) * 2002-05-03 2004-10-26 Atheros Communications, Inc. Sequence detection
US7173985B1 (en) * 2002-08-05 2007-02-06 Altera Corporation Method and apparatus for implementing a Viterbi decoder
FR2854747A1 (fr) * 2003-05-09 2004-11-12 St Microelectronics Sa Dispositif et procede d'addition-comparaison-selection- ajustement dans un decodeur
US20040255230A1 (en) * 2003-06-10 2004-12-16 Inching Chen Configurable decoder
US8577026B2 (en) 2010-12-29 2013-11-05 Ternarylogic Llc Methods and apparatus in alternate finite field based coders and decoders
US7877670B2 (en) * 2005-12-06 2011-01-25 Ternarylogic Llc Error correcting decoding for convolutional and recursive systematic convolutional encoded sequences
WO2005099100A1 (en) * 2004-03-22 2005-10-20 Matsushita Electric Industrial Co., Ltd. Local erasure map decoder
US7231586B2 (en) * 2004-07-21 2007-06-12 Freescale Semiconductor, Inc. Multi-rate viterbi decoder
US20060068911A1 (en) * 2004-09-30 2006-03-30 Microsoft Corporation Game console communication with a computer
US7275204B2 (en) * 2004-09-30 2007-09-25 Marvell International Ltd. Distributed ring control circuits for Viterbi traceback
US7797618B2 (en) * 2004-12-30 2010-09-14 Freescale Semiconductor, Inc. Parallel decoder for ultrawide bandwidth receiver
US7458008B2 (en) * 2004-12-30 2008-11-25 Freescale Semiconductor, Inc. Decision voting in a parallel decoder
JP4432781B2 (ja) * 2005-01-17 2010-03-17 株式会社日立製作所 誤り訂正復号器
US7404139B2 (en) * 2005-01-21 2008-07-22 Freescale Semiconductor, Inc. Decoder with M-AT-A-Time Traceback
US20070006058A1 (en) * 2005-06-30 2007-01-04 Seagate Technology Llc Path metric computation unit for use in a data detector
US7856579B2 (en) * 2006-04-28 2010-12-21 Industrial Technology Research Institute Network for permutation or de-permutation utilized by channel coding algorithm
US20070011557A1 (en) * 2005-07-07 2007-01-11 Highdimension Ltd. Inter-sequence permutation turbo code system and operation methods thereof
US7797615B2 (en) * 2005-07-07 2010-09-14 Acer Incorporated Utilizing variable-length inputs in an inter-sequence permutation turbo code system
US20070150332A1 (en) * 2005-12-22 2007-06-28 Caterpillar Inc. Heuristic supply chain modeling method and system
US20080152044A1 (en) * 2006-12-20 2008-06-26 Media Tek Inc. Veterbi decoding method for convolutionally encoded signal
EP2232378A1 (de) * 2007-12-10 2010-09-29 Sandbridge Technologies, Inc. Sich beschleunigende Rückverfolgung auf einem SIGNALPROzESSOR
EP2283579A1 (de) * 2008-06-10 2011-02-16 Telefonaktiebolaget L M Ericsson (PUBL) Kontinuierlicher paralleler viterbi-decoder
US8179999B2 (en) * 2008-08-08 2012-05-15 Nokia Corporation Decoding of blocks in radio communications
US20100299579A1 (en) * 2009-05-21 2010-11-25 Ternarylogic Llc Methods and Systems for Error-Correction in Convolutional and Systematic Convolutional Decoders in Galois Configuration
FR2946480B1 (fr) * 2009-06-09 2011-06-17 Thales Sa Recepteur equipe d'un decodeur de viterbi a treillis
US8644432B2 (en) * 2012-04-05 2014-02-04 Freescale Semiconductor, Inc. Viterbi decoder for decoding convolutionally encoded data stream
US9419656B2 (en) * 2014-07-29 2016-08-16 Intel IP Corporation Decoder and method for decoding an encoded sequence of bits

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346473A (en) * 1980-02-26 1982-08-24 Harris Corporation Error correction coding method and apparatus for multilevel signaling
US4583078A (en) * 1984-11-13 1986-04-15 Communications Satellite Corporation Serial Viterbi decoder
US5027374A (en) * 1990-03-26 1991-06-25 Motorola, Inc. Bit serial Viterbi decoder add/compare/select array
DE4038251A1 (de) 1990-11-30 1992-06-04 Philips Patentverwaltung Entzerrer fuer ein digitales uebertragungssystem
KR930004862B1 (ko) * 1990-12-17 1993-06-09 삼성전자 주식회사 상태 평가량 기억장치
US5418795A (en) * 1991-09-13 1995-05-23 Sony Corporation Viterbi decoder with path metric comparisons for increased decoding rate and with normalization timing calculation
KR940010435B1 (ko) * 1992-08-31 1994-10-22 삼성전자 주식회사 비터비 복호기의 경로기억장치
JPH06338808A (ja) * 1993-05-28 1994-12-06 Matsushita Electric Ind Co Ltd 加算比較選択装置
US5550870A (en) * 1994-03-02 1996-08-27 Lucent Technologies Inc. Viterbi processor
US5471500A (en) * 1994-03-08 1995-11-28 At&T Ipm Corp. Soft symbol decoding
US5822341A (en) * 1995-04-06 1998-10-13 Advanced Hardware Architectures, Inc. Multiport RAM for use within a viterbi decoder
EP0769853B1 (de) * 1995-10-21 2001-10-04 Micronas GmbH Logischer Block für einen Viterbi-Decoder
JPH09232973A (ja) * 1996-02-28 1997-09-05 Sony Corp ビタビ復号器
US5987638A (en) * 1997-04-22 1999-11-16 Lsi Logic Corporation Apparatus and method for computing the result of a viterbi equation in a single cycle

Also Published As

Publication number Publication date
US20020010895A1 (en) 2002-01-24
EP0967730B1 (de) 2009-10-21
JP2000031836A (ja) 2000-01-28
JP2003092536A (ja) 2003-03-28
EP0967730A1 (de) 1999-12-29
JP3604955B2 (ja) 2004-12-22
US6477680B2 (en) 2002-11-05
JP3677257B2 (ja) 2005-07-27

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