BR9901231A - Desmapeamento interativo. - Google Patents

Desmapeamento interativo.

Info

Publication number
BR9901231A
BR9901231A BR9901231-6A BR9901231A BR9901231A BR 9901231 A BR9901231 A BR 9901231A BR 9901231 A BR9901231 A BR 9901231A BR 9901231 A BR9901231 A BR 9901231A
Authority
BR
Brazil
Prior art keywords
temporary
generate
signal
decoding
unmapped
Prior art date
Application number
BR9901231-6A
Other languages
English (en)
Inventor
Stephan Tem Brink
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
Publication of BR9901231A publication Critical patent/BR9901231A/pt

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
    • 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
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • 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
    • H03M13/27—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
    • 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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957—Turbo codes and decoding
    • 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6325—Error control coding in combination with demodulation
    • 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
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated 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
    • H04L1/0071—Use of interleaving
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03286—Arrangements for operating in conjunction with other apparatus with channel-decoding circuitry

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)
  • Power Engineering (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

<B>DESMAPEAMENTO ITERATIVO<D>. A invenção compreende um método e aparelho para decodificar iterativamente um sinal modulado em multiníveis no qual as informações de saída temporárias de um decodificador de canal são realimentadas e utilizadas por um dispositivo de desmapeamento temporário moldado para aperfeiçoar o resultado de decodificação por etapas adicionais de decodificação iterativa. O receptor inclui um desmapeador para gerar um sinal desmapeado, desintercalador de bit para gerar um sinal desmapeado e desintercalado e um decodificador para gerar valores de confiabilidade temporários representativos do sinal decodificado. Estes valores de confiabilidade temporários são então intercalados em bit e realimentados para o desmapeador, como um conhecimento a priori, para uso em iterações adicionais do processo de decodificação.
BR9901231-6A 1998-04-03 1999-04-01 Desmapeamento interativo. BR9901231A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98302653 1998-04-03

Publications (1)

Publication Number Publication Date
BR9901231A true BR9901231A (pt) 2000-01-18

Family

ID=8234759

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9901231-6A BR9901231A (pt) 1998-04-03 1999-04-01 Desmapeamento interativo.

Country Status (10)

Country Link
US (1) US6353911B1 (pt)
EP (1) EP0948140B1 (pt)
JP (1) JP3662766B2 (pt)
KR (1) KR100403230B1 (pt)
CN (1) CN1140059C (pt)
AU (1) AU721048B2 (pt)
BR (1) BR9901231A (pt)
CA (1) CA2266108C (pt)
DE (1) DE69930467T2 (pt)
ES (1) ES2259227T3 (pt)

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US6732328B1 (en) * 1999-07-12 2004-05-04 Maxtor Corporation Two stage detector having viterbi detector matched to a channel and post processor matched to a channel code
US6891897B1 (en) * 1999-07-23 2005-05-10 Nortel Networks Limited Space-time coding and channel estimation scheme, arrangement and method
GB2354676B (en) * 1999-09-20 2001-10-10 Lucent Technologies Inc Turbo equalization with a decision feedback equalizer
US6795507B1 (en) * 1999-09-30 2004-09-21 Skyworks Solutions, Inc. Method and apparatus for turbo decoding of trellis coded modulated signal transmissions
GB2360425A (en) * 2000-03-16 2001-09-19 Siemens Ag Channel state information estimation for turbo-code decoders
DE10012874A1 (de) * 2000-03-16 2001-09-27 Infineon Technologies Ag Turbo-Decodierer und Turbo-Decodierverfahren
JP2001274698A (ja) * 2000-03-24 2001-10-05 Sony Corp 符号化装置、符号化方法及び符号化プログラムが記録された記録媒体、並びに、復号装置、復号方法及び復号プログラムが記録された記録媒体
US6963618B2 (en) * 2000-04-18 2005-11-08 Zenith Electronics Corporation Enhanced slice prediction feedback
JP4505953B2 (ja) * 2000-06-08 2010-07-21 ソニー株式会社 符号化装置及び符号化方法、並びに、復号装置及び復号方法
US6999530B2 (en) * 2000-08-22 2006-02-14 Texas Instruments Incorporated Using SISO decoder feedback to produce symbol probabilities for use in wireless communications that utilize turbo coding and transmit diversity
US6952458B1 (en) * 2000-10-02 2005-10-04 Globespanvirata, Inc. Demapping system and method
US7533320B2 (en) * 2000-11-14 2009-05-12 Interdigital Technology Corporation Wireless transmit/receive unit having a turbo decoder with circular redundancy code signature comparison and method
KR20030011076A (ko) * 2001-01-16 2003-02-06 코닌클리케 필립스 일렉트로닉스 엔.브이. 비트 인터리브 코드화 변조(ｂｉｃｍ) 매핑
US6996764B2 (en) * 2001-04-18 2006-02-07 Sharp Kabushiki Kaisha Coding method, recording medium, decoding method, and recording-medium reproducing apparatus
US7218692B2 (en) * 2001-06-15 2007-05-15 Texas Instruments Incorporated Multi-path interference cancellation for transmit diversity
WO2003007300A1 (en) * 2001-07-09 2003-01-23 Seagate Technology Llc Method and apparatus for suppressing low frequency content in digital data
US8064528B2 (en) 2003-05-21 2011-11-22 Regents Of The University Of Minnesota Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems
KR100713403B1 (ko) * 2003-09-30 2007-05-04 삼성전자주식회사 통신 시스템에서 채널 상태에 따른 송신 방식 제어 장치및 방법
US6995693B1 (en) * 2003-12-04 2006-02-07 Rockwell Collins, Inc. Method and apparatus for multiple input diversity decoding
US7395495B2 (en) * 2004-01-12 2008-07-01 Intel Corporation Method and apparatus for decoding forward error correction codes
CN100337479C (zh) * 2004-03-22 2007-09-12 上海奇普科技有限公司 一种针对tpc码与nr码级联编码的迭代译码方法
US8325826B2 (en) * 2005-03-09 2012-12-04 Qualcomm Incorporated Methods and apparatus for transmitting signals facilitating antenna control
KR100783807B1 (ko) * 2006-05-15 2007-12-10 삼성전자주식회사 디씨엠 디맵핑 방법 및 이를 이용한 디씨엠 디맵퍼
US8225186B2 (en) * 2006-07-14 2012-07-17 Qualcomm Incorporated Ecoding and decoding methods and apparatus for use in a wireless communication system
US8005166B2 (en) * 2006-11-14 2011-08-23 Samsung Electronics Co., Ltd. System for digital television broadcasting using modified 2/3 trellis coding
KR101214509B1 (ko) * 2007-05-17 2012-12-24 삼성전자주식회사 연판정 값 생성 장치 및 그 방법
US8065594B2 (en) * 2007-06-29 2011-11-22 Limberg Allen Leroy 8VSB DTV signals with PCCC and subsequent trellis coding
US8108749B2 (en) * 2008-03-06 2012-01-31 Zoran Corporation Diversity combining iterative decoder
US20090322961A1 (en) * 2008-06-27 2009-12-31 Limberg Allen Leroy System for digital television broadcasting using modified 2/3 trellis coding
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KR100948511B1 (ko) 2008-09-30 2010-03-23 주식회사 코아로직 디맵퍼의 하드 디시젼을 이용한 채널 추정장치 및 채널 추정방법과 그 추정장치를 포함한 ｏｆｄｍ 수신장치
JP5235629B2 (ja) * 2008-11-28 2013-07-10 株式会社日立製作所 無線通信装置の符号化及び変調方法、並びに復号方法
US8605829B2 (en) * 2009-12-01 2013-12-10 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for detecting a plurality of symbol blocks using a decoder
US8340202B2 (en) * 2010-03-11 2012-12-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient soft modulation for gray-mapped QAM symbols
GB201302386D0 (en) * 2013-02-11 2013-03-27 Newtec Cy Transmitter and receiver for performing digital communication
DK2957084T3 (en) 2013-02-14 2017-07-17 Newtec Cy MODULATION WITH A APPSK CONSTELLATION WITH ONE RING WITH IRREGULAR LOCATIONS
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CN104333435B (zh) * 2014-09-30 2017-11-07 扬智科技股份有限公司 迭代解映射译码装置
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Also Published As

Publication number Publication date
AU721048B2 (en) 2000-06-22
AU2251099A (en) 1999-10-14
EP0948140A1 (en) 1999-10-06
ES2259227T3 (es) 2006-09-16
CA2266108C (en) 2003-11-11
CA2266108A1 (en) 1999-10-03
DE69930467D1 (de) 2006-05-11
EP0948140B1 (en) 2006-03-22
KR100403230B1 (ko) 2003-10-24
JP3662766B2 (ja) 2005-06-22
CN1236229A (zh) 1999-11-24
CN1140059C (zh) 2004-02-25
DE69930467T2 (de) 2006-12-07
KR19990082874A (ko) 1999-11-25
US6353911B1 (en) 2002-03-05
JP2000041078A (ja) 2000-02-08

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Legal Events

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

Free format text: REFERENTE A 3A, 4A, 5A, 6A, 7A E 8A ANUIDADES

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 NAO CUMPRIMENTO DO DESPACHO 8.6 NA RPI 1910 DE 14/08/2007.