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
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.
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) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7180955B2 (en) | 2000-08-22 | 2007-02-20 | Texas Instruments Incorporated | Parallel concatenated trellis-coded modulation with asymmetric signal mapping |
US6226318B1 (en) * | 1998-03-31 | 2001-05-01 | Zenith Electronics Corporation | Detection of code vectors in single frequency, multiple transmitter networks |
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 |
DE10012874A1 (de) * | 2000-03-16 | 2001-09-27 | Infineon Technologies Ag | Turbo-Decodierer und Turbo-Decodierverfahren |
GB2360425A (en) * | 2000-03-16 | 2001-09-19 | Siemens Ag | Channel state information estimation for turbo-code decoders |
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 |
WO2002056559A1 (en) * | 2001-01-16 | 2002-07-18 | Koninklijke Philips Electronics N.V. | Bit interleaved coded modulation (bicm) mapping |
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 |
CN102132348B (zh) * | 2008-07-01 | 2015-06-17 | Lsi公司 | 用于闪存存储器中写入端单元间干扰减轻的方法和装置 |
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 |
PL2957084T3 (pl) | 2013-02-14 | 2017-10-31 | Newtec Cy | Modulacja z konstelacją apsk posiadającą jeden pierścień z nierównomiernie rozłożonymi punktami |
EP2916507B1 (en) | 2014-03-04 | 2019-11-06 | Alcatel Lucent | Method for digitally modulating a signal in a communication network |
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 |
EP3994858B1 (en) * | 2020-05-06 | 2023-08-02 | Huawei Technologies Co., Ltd. | Device and method for decoding and equalizing |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2730370B1 (fr) * | 1995-02-07 | 1997-04-25 | France Telecom | Dispositif de reception de signaux numeriques a structure iterative, module et procede correspondants |
DE19526416A1 (de) * | 1995-07-19 | 1997-01-23 | Siemens Ag | Verfahren und Anordnung zur Bestimmung eines adaptiven Abbruchkriteriums beim iterativen Decodieren multidimensional codierter Infomation |
JP2815343B2 (ja) * | 1996-10-01 | 1998-10-27 | 株式会社次世代デジタルテレビジョン放送システム研究所 | 符号化伝送方式とその送受信装置 |
-
1999
- 1999-01-19 ES ES99300334T patent/ES2259227T3/es not_active Expired - Lifetime
- 1999-01-19 EP EP99300334A patent/EP0948140B1/en not_active Expired - Lifetime
- 1999-01-19 DE DE69930467T patent/DE69930467T2/de not_active Expired - Lifetime
- 1999-03-18 CA CA002266108A patent/CA2266108C/en not_active Expired - Fee Related
- 1999-03-30 AU AU22510/99A patent/AU721048B2/en not_active Ceased
- 1999-04-01 BR BR9901231-6A patent/BR9901231A/pt not_active IP Right Cessation
- 1999-04-02 JP JP09573099A patent/JP3662766B2/ja not_active Expired - Fee Related
- 1999-04-02 US US09/285,580 patent/US6353911B1/en not_active Expired - Lifetime
- 1999-04-02 KR KR10-1999-0011557A patent/KR100403230B1/ko not_active IP Right Cessation
- 1999-04-02 CN CNB99104794XA patent/CN1140059C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69930467T2 (de) | 2006-12-07 |
EP0948140B1 (en) | 2006-03-22 |
AU2251099A (en) | 1999-10-14 |
CN1140059C (zh) | 2004-02-25 |
DE69930467D1 (de) | 2006-05-11 |
EP0948140A1 (en) | 1999-10-06 |
JP3662766B2 (ja) | 2005-06-22 |
KR100403230B1 (ko) | 2003-10-24 |
JP2000041078A (ja) | 2000-02-08 |
CA2266108C (en) | 2003-11-11 |
CA2266108A1 (en) | 1999-10-03 |
CN1236229A (zh) | 1999-11-24 |
AU721048B2 (en) | 2000-06-22 |
ES2259227T3 (es) | 2006-09-16 |
KR19990082874A (ko) | 1999-11-25 |
US6353911B1 (en) | 2002-03-05 |
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Legal Events
Date | Code | Title | Description |
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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 |
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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. |