DE69634155T2 - Erfassung einer Konfidenz und eines Rahmen-Qualitäts-Signals in einem "soft decision"-Faltungs-Dekoder - Google Patents

Erfassung einer Konfidenz und eines Rahmen-Qualitäts-Signals in einem "soft decision"-Faltungs-Dekoder Download PDF

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Publication number
DE69634155T2
DE69634155T2 DE69634155T DE69634155T DE69634155T2 DE 69634155 T2 DE69634155 T2 DE 69634155T2 DE 69634155 T DE69634155 T DE 69634155T DE 69634155 T DE69634155 T DE 69634155T DE 69634155 T2 DE69634155 T2 DE 69634155T2
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DE
Germany
Prior art keywords
signals
frame
bits
confidence measure
received
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
DE69634155T
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German (de)
English (en)
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DE69634155D1 (de
Inventor
Tak Wing WONG
Yuk-Kun Danny WONG
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British Telecommunications PLC
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British Telecommunications PLC
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Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE69634155D1 publication Critical patent/DE69634155D1/de
Application granted granted Critical
Publication of DE69634155T2 publication Critical patent/DE69634155T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H03M13/37—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
    • 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
    • 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
    • H03M13/27—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 using interleaving techniques
    • H03M13/275—Interleaver wherein the permutation pattern is obtained using a congruential operation of the type y=ax+b modulo c
    • 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
    • H03M13/3723—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 using means or methods for the initialisation of the decoder
    • 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
    • H03M13/3738—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with judging correct decoding
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H04L1/0069—Puncturing patterns
    • 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
    • H04L1/0071—Use of interleaving
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/09—Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
    • 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
    • H04L2001/0098—Unequal error protection

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)
  • Quality & Reliability (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69634155T 1995-10-06 1996-10-03 Erfassung einer Konfidenz und eines Rahmen-Qualitäts-Signals in einem "soft decision"-Faltungs-Dekoder Expired - Lifetime DE69634155T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9520445 1995-10-06
GBGB9520445.9A GB9520445D0 (en) 1995-10-06 1995-10-06 Convolutional codes
PCT/GB1996/002423 WO1997014235A1 (en) 1995-10-06 1996-10-03 Confidence and frame signal quality detection in a soft decision convolutional decoder

Publications (2)

Publication Number Publication Date
DE69634155D1 DE69634155D1 (de) 2005-02-10
DE69634155T2 true DE69634155T2 (de) 2006-01-05

Family

ID=10781891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69634155T Expired - Lifetime DE69634155T2 (de) 1995-10-06 1996-10-03 Erfassung einer Konfidenz und eines Rahmen-Qualitäts-Signals in einem "soft decision"-Faltungs-Dekoder

Country Status (13)

Country Link
US (2) US5983174A (https=)
EP (2) EP0853848B1 (https=)
JP (1) JP3681759B2 (https=)
KR (1) KR19990064118A (https=)
CN (1) CN1140084C (https=)
AU (1) AU728399B2 (https=)
CA (1) CA2233980C (https=)
DE (1) DE69634155T2 (https=)
GB (1) GB9520445D0 (https=)
NO (1) NO981525L (https=)
NZ (1) NZ319215A (https=)
SG (1) SG92637A1 (https=)
WO (1) WO1997014235A1 (https=)

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JPH1117555A (ja) 1997-06-26 1999-01-22 Mitsubishi Electric Corp データ伝送システム、受信装置および記録媒体
WO1999023760A1 (en) 1997-11-03 1999-05-14 Harris Corporation Receiver for a reconfigurable radio system and method therefor
JP3249457B2 (ja) * 1997-11-28 2002-01-21 沖電気工業株式会社 ディジタル通信用音声送受信装置
JP2002501328A (ja) 1998-01-07 2002-01-15 シーメンス アクチエンゲゼルシヤフト 情報を、ソース制御チャネルデコーディングを使用してコーディング、デコーディングおよび伝送するための方法および装置
US6192500B1 (en) * 1998-02-11 2001-02-20 Conexant Systems, Inc. Method and apparatus for enhanced performance in a system employing convolutional decoding
EP1062758A1 (en) 1998-03-12 2000-12-27 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for signal degradation measurement
DE19845888A1 (de) * 1998-10-06 2000-05-11 Bosch Gmbh Robert Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
GB2348087B (en) 1999-03-13 2003-08-13 Nec Technologies Detection of unreliable frames in digital data transmission systems
EP1914895B1 (en) * 1999-05-10 2017-11-01 NTT DoCoMo, Inc. Data multiplexing method and data multiplexer, and data transmitting method and data transmitter
JP4449108B2 (ja) * 1999-08-05 2010-04-14 パナソニック株式会社 音声復号装置
US6915263B1 (en) * 1999-10-20 2005-07-05 Sony Corporation Digital audio decoder having error concealment using a dynamic recovery delay and frame repeating and also having fast audio muting capabilities
US6799294B1 (en) * 2000-04-06 2004-09-28 Lucent Technologies Inc. Method and apparatus for generating channel error flags for error mitigation and/or concealment in source decoders
US6760699B1 (en) * 2000-04-24 2004-07-06 Lucent Technologies Inc. Soft feature decoding in a distributed automatic speech recognition system for use over wireless channels
KR100403738B1 (ko) * 2000-05-24 2003-10-30 삼성전자주식회사 복합 재전송형식을 사용하는 데이터 통신시스템의 데이터송수신장치 및 방법
US7109970B1 (en) * 2000-07-01 2006-09-19 Miller Stephen S Apparatus for remotely controlling computers and other electronic appliances/devices using a combination of voice commands and finger movements
US7051268B1 (en) * 2000-09-29 2006-05-23 Qualcomm Incorporated Method and apparatus for reducing power consumption of a decoder in a communication system
FI115178B (fi) 2000-10-31 2005-03-15 Nokia Corp Menetelmä ja järjestely bittien suojaamiseksi parhaalla mahdollisella tavalla tiedonsiirtovirheitä vastaan
US6583735B2 (en) * 2001-02-01 2003-06-24 Nec Corporation Method and apparatus for adaptive bus coding for low power deep sub-micron designs
FR2821096A1 (fr) 2001-02-20 2002-08-23 Clotilde Martine Griguer Systeme de revetement permettant de former des pistes de circulation temporaire
GB2386808B (en) * 2001-06-28 2004-07-07 Samsung Electronics Co Ltd Apparatus and method for transmitting TFCI bits for a hard split mode in a CDMA mobile communication system
US6901550B2 (en) * 2001-10-17 2005-05-31 Actelis Networks Inc. Two-dimensional interleaving in a modem pool environment
WO2004100475A2 (en) * 2003-05-05 2004-11-18 Thomson Licensing S.A. Adaptive soft demodulation for reception of distorted signals
CN1788479A (zh) * 2003-05-12 2006-06-14 西门子公司 用于在无线lan中分配比特的信令
JP4417733B2 (ja) * 2004-01-15 2010-02-17 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 伝送方法及び装置
WO2005086138A1 (ja) * 2004-03-05 2005-09-15 Matsushita Electric Industrial Co., Ltd. エラー隠蔽装置およびエラー隠蔽方法
US7949074B2 (en) * 2004-04-24 2011-05-24 Thomson Licensing Apparatus and method for decoding in a hierarchical, modulation system
US7327714B2 (en) * 2004-06-02 2008-02-05 Samsung Electronics Co., Ltd. Apparatus and method for detecting a time division multiplexing frame in a mobile communication system
US8166354B2 (en) * 2006-11-30 2012-04-24 Research In Motion Limited Apparatus, and associated method, for estimating a bit error rate of data communicated in a communication system
JP5385513B2 (ja) * 2007-06-18 2014-01-08 富士通モバイルコミュニケーションズ株式会社 ディジタル通信システム、ディジタル無線送信装置、ディジタル無線受信装置
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US9489950B2 (en) * 2012-05-31 2016-11-08 Agency For Science, Technology And Research Method and system for dual scoring for text-dependent speaker verification
US12462814B2 (en) * 2023-10-06 2025-11-04 Digital Voice Systems, Inc. Bit error correction in digital speech
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Also Published As

Publication number Publication date
NO981525D0 (no) 1998-04-03
EP0853848A1 (en) 1998-07-22
JP3681759B2 (ja) 2005-08-10
CA2233980A1 (en) 1997-04-17
US6081778A (en) 2000-06-27
JPH11513551A (ja) 1999-11-16
CN1198861A (zh) 1998-11-11
NZ319215A (en) 2000-02-28
EP1508990A1 (en) 2005-02-23
EP0853848B1 (en) 2005-01-05
DE69634155D1 (de) 2005-02-10
KR19990064118A (ko) 1999-07-26
CA2233980C (en) 2002-12-17
WO1997014235A1 (en) 1997-04-17
CN1140084C (zh) 2004-02-25
AU7138996A (en) 1997-04-30
SG92637A1 (en) 2002-11-19
AU728399B2 (en) 2001-01-11
NO981525L (no) 1998-06-03
US5983174A (en) 1999-11-09
GB9520445D0 (en) 1995-12-06

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