CA2079287A1 - Modulation codee a protection non uniforme contre les erreurs pour les canaux sujets aux evanouissements - Google Patents

Modulation codee a protection non uniforme contre les erreurs pour les canaux sujets aux evanouissements

Info

Publication number
CA2079287A1
CA2079287A1 CA2079287A CA2079287A CA2079287A1 CA 2079287 A1 CA2079287 A1 CA 2079287A1 CA 2079287 A CA2079287 A CA 2079287A CA 2079287 A CA2079287 A CA 2079287A CA 2079287 A1 CA2079287 A1 CA 2079287A1
Authority
CA
Canada
Prior art keywords
error protection
coded modulation
fading channels
unequal error
celp
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
CA2079287A
Other languages
English (en)
Other versions
CA2079287C (fr
Inventor
Nambirajan Seshadri
Carl-Erik Wilhelm Sundberg
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co 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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2079287A1 publication Critical patent/CA2079287A1/fr
Application granted granted Critical
Publication of CA2079287C publication Critical patent/CA2079287C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • 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
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/186—Phase-modulated carrier systems, i.e. using phase-shift keying in which the information is carried by both the individual signal points and the subset to which the individual signal points belong, e.g. coset coding or related schemes
    • 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)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002079287A 1991-11-26 1992-09-28 Modulation codee a protection non uniforme contre les erreurs pour les canaux sujets aux evanouissements Expired - Fee Related CA2079287C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US797,831 1991-11-26
US07/797,831 US5289501A (en) 1991-11-26 1991-11-26 Coded modulation with unequal error protection for fading channels

Publications (2)

Publication Number Publication Date
CA2079287A1 true CA2079287A1 (fr) 1993-05-27
CA2079287C CA2079287C (fr) 1996-11-26

Family

ID=25171911

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002079287A Expired - Fee Related CA2079287C (fr) 1991-11-26 1992-09-28 Modulation codee a protection non uniforme contre les erreurs pour les canaux sujets aux evanouissements

Country Status (4)

Country Link
US (1) US5289501A (fr)
EP (1) EP0544463A3 (fr)
JP (1) JP2509784B2 (fr)
CA (1) CA2079287C (fr)

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US6125150A (en) * 1995-10-30 2000-09-26 The Board Of Trustees Of The Leland Stanford, Junior University Transmission system using code designed for transmission with periodic interleaving
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JP3634082B2 (ja) * 1996-08-29 2005-03-30 富士通株式会社 送信装置および受信装置
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KR100374032B1 (ko) * 1997-09-11 2003-05-22 삼성전자주식회사 이동통신시스템의코딩및주파수다이버시티구현방법및장치
US6031874A (en) * 1997-09-26 2000-02-29 Ericsson Inc. Unequal error protection in coded modulation schemes
AU9576198A (en) * 1997-09-26 1999-04-23 Ericsson Inc. Symbol mappings for coded modulations
US6405338B1 (en) * 1998-02-11 2002-06-11 Lucent Technologies Inc. Unequal error protection for perceptual audio coders
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KR100585829B1 (ko) 1999-05-27 2006-06-01 에스케이 텔레콤주식회사 음성 부호화기의 오류 제어 방법
KR100585828B1 (ko) 1999-05-27 2006-06-01 에스케이 텔레콤주식회사 음성 부호화기의 오류 제어 방법
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US6801499B1 (en) 1999-08-10 2004-10-05 Texas Instruments Incorporated Diversity schemes for packet communications
US6678267B1 (en) * 1999-08-10 2004-01-13 Texas Instruments Incorporated Wireless telephone with excitation reconstruction of lost packet
US6757256B1 (en) 1999-08-10 2004-06-29 Texas Instruments Incorporated Process of sending packets of real-time information
US6801532B1 (en) 1999-08-10 2004-10-05 Texas Instruments Incorporated Packet reconstruction processes for packet communications
US6914934B1 (en) * 1999-09-03 2005-07-05 Agere Systems Inc. Multiplier-free methods and apparatus for signal processing in a digital communication system
US6307890B1 (en) * 1999-12-06 2001-10-23 Cue Corporation High density FM subcarrier modulation with standardized network layer
DE60011933T2 (de) * 1999-12-10 2005-07-14 Nokia Corp. Verfahren und gerät zur bereitstellung von bit zu symbol-abbildung für raum-zeit-koden
US6700926B1 (en) * 1999-12-10 2004-03-02 Nokia Corporation Method and apparatus providing bit-to-symbol mapping for space-time codes
US7574351B2 (en) * 1999-12-14 2009-08-11 Texas Instruments Incorporated Arranging CELP information of one frame in a second packet
EP1262027B1 (fr) * 2000-02-07 2005-08-31 Ericsson Inc. Procede de codage differentiel et de modulation
KR100834019B1 (ko) * 2000-07-17 2008-06-02 코닌클리케 필립스 일렉트로닉스 엔.브이. 인코딩된 데이터 스트림을 송신하기 위한 방법과 송신기 및 인코딩된 데이터 스트림을 수신하기 위한 방법과 수신기
US7126930B2 (en) * 2001-02-10 2006-10-24 Qualcomm, Incorporated Method and apparatus for transmitting messages in a wireless communication system
JP3545726B2 (ja) * 2001-02-27 2004-07-21 松下電器産業株式会社 受信側装置
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ES2886158T3 (es) 2007-06-05 2021-12-16 Constellation Designs Llc Método y aparato para la señalización con constelaciones de capacidad optimizada
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US5105442A (en) * 1990-11-07 1992-04-14 At&T Bell Laboratories Coded modulation with unequal error protection

Also Published As

Publication number Publication date
JPH0669971A (ja) 1994-03-11
JP2509784B2 (ja) 1996-06-26
CA2079287C (fr) 1996-11-26
US5289501A (en) 1994-02-22
EP0544463A2 (fr) 1993-06-02
EP0544463A3 (en) 1993-06-30

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