CN101924565B - Ldpc编码器、解码器、系统及方法 - Google Patents
Ldpc编码器、解码器、系统及方法 Download PDFInfo
- Publication number
- CN101924565B CN101924565B CN201010276240.6A CN201010276240A CN101924565B CN 101924565 B CN101924565 B CN 101924565B CN 201010276240 A CN201010276240 A CN 201010276240A CN 101924565 B CN101924565 B CN 101924565B
- Authority
- CN
- China
- Prior art keywords
- matrix
- code
- check
- interleaver
- node
- 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.)
- Active
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
- H03M13/03—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
- H03M13/11—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 using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1191—Codes on graphs other than LDPC codes
- H03M13/1194—Repeat-accumulate [RA] codes
-
- 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
- H03M13/11—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 using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1148—Structural properties of the code parity-check or generator matrix
-
- 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
- H03M13/11—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 using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1148—Structural properties of the code parity-check or generator matrix
- H03M13/118—Parity check matrix structured for simplifying encoding, e.g. by having a triangular or an approximate triangular structure
- H03M13/1185—Parity check matrix structured for simplifying encoding, e.g. by having a triangular or an approximate triangular structure wherein the parity-check matrix comprises a part with a double-diagonal
-
- 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
Abstract
Description
MCS索引 | 码率 | QAM | 有效载荷(bits/TTI(2ms)) | 用户速率(Mbits/s) |
1 | 0.125 | 2 | 2428 | 1.21 |
2 | 0.200 | 2 | 3863 | 1.93 |
3 | 0.250 | 2 | 4856 | 2.43 |
4 | 0.333 | 2 | 6512 | 3.26 |
5 | 0.500 | 2 | 9824 | 4.91 |
6 | 0.667 | 2 | 13135 | 6.57 |
7 | 0.800 | 2 | 15785 | 7.89 |
8 | 0.500 | 4 | 19759 | 9.88 |
9 | 0.667 | 4 | 26382 | 13.19 |
10 | 0.800 | 4 | 31681 | 15.84 |
11 | 0.667 | 6 | 39629 | 19.81 |
12 | 0.750 | 6 | 44596 | 22.30 |
13 | 0.800 | 6 | 47577 | 23.79 |
Claims (3)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55856604P | 2004-04-02 | 2004-04-02 | |
US60/558566 | 2004-04-02 | ||
US56381504P | 2004-04-21 | 2004-04-21 | |
US60/563815 | 2004-04-21 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2005800174426A Division CN1973440A (zh) | 2004-04-02 | 2005-04-04 | Ldpc编码器、解码器、系统及方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101924565A CN101924565A (zh) | 2010-12-22 |
CN101924565B true CN101924565B (zh) | 2014-10-15 |
Family
ID=35064124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201010276240.6A Active CN101924565B (zh) | 2004-04-02 | 2005-04-04 | Ldpc编码器、解码器、系统及方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7831883B2 (zh) |
CN (1) | CN101924565B (zh) |
WO (1) | WO2005096510A1 (zh) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006001015A2 (en) * | 2004-06-25 | 2006-01-05 | Runcom Technologies Ltd. | Multi-rate ldpc code system and method |
CA2604939A1 (en) * | 2005-04-15 | 2006-10-26 | Trellisware Technologies, Inc. | Clash-free irregular-repeat-accumulate code |
US7793190B1 (en) | 2005-08-10 | 2010-09-07 | Trellisware Technologies, Inc. | Reduced clash GRA interleavers |
JP4807063B2 (ja) * | 2005-12-20 | 2011-11-02 | ソニー株式会社 | 復号装置、制御方法、およびプログラム |
EP1968225A1 (en) | 2005-12-27 | 2008-09-10 | Matsushita Electric Industrial Co., Ltd. | Radio transmitting apparatus and multicarrier signal generating method |
US7783952B2 (en) | 2006-09-08 | 2010-08-24 | Motorola, Inc. | Method and apparatus for decoding data |
FR2909499B1 (fr) * | 2006-12-01 | 2009-01-16 | Commissariat Energie Atomique | Procede et dispositif de decodage pour codes ldpc, et appareil de communication comprenant un tel dispositif |
EP2109977A1 (en) * | 2007-02-09 | 2009-10-21 | Telefonaktiebolaget LM Ericsson (PUBL) | Ip tunneling optimisation |
JPWO2008096550A1 (ja) * | 2007-02-09 | 2010-05-20 | パナソニック株式会社 | 無線通信装置およびレピティション方法 |
US20090217126A1 (en) * | 2007-04-24 | 2009-08-27 | Manik Raina | Generation of tanner graphs for systematic group codes for efficient communication |
US8301963B2 (en) * | 2007-10-23 | 2012-10-30 | Spansion Llc | Low-density parity-check code based error correction for memory device |
US8230312B1 (en) | 2008-01-09 | 2012-07-24 | Marvell International Ltd. | Iterative decoder memory arrangement |
US8443033B2 (en) * | 2008-08-04 | 2013-05-14 | Lsi Corporation | Variable node processing unit |
EP2525498A1 (en) * | 2011-05-18 | 2012-11-21 | Panasonic Corporation | Bit-interleaved coding and modulation (BICM) with quasi-cyclic LDPC codes |
EP2525496A1 (en) * | 2011-05-18 | 2012-11-21 | Panasonic Corporation | Bit-interleaved coding and modulation (BICM) with quasi-cyclic LDPC codes |
KR101218658B1 (ko) | 2011-11-22 | 2013-01-04 | 단국대학교 산학협력단 | 불규칙 반복 다상 누산 코드를 이용한 부호화 방법 및 복호화 방법 |
US8914710B2 (en) | 2012-09-27 | 2014-12-16 | Apple Inc. | Soft message-passing decoder with efficient message computation |
CN104917536B (zh) * | 2014-03-11 | 2019-11-12 | 中兴通讯股份有限公司 | 一种支持低码率编码的方法及装置 |
US10432228B2 (en) * | 2014-03-27 | 2019-10-01 | Electronics And Telecommunications Research Institute | Bit interleaver for low-density parity check codeword having length of 64800 and code rate of 5/15 and 4096-symbol mapping, and bit interleaving method using same |
KR102240741B1 (ko) * | 2015-01-27 | 2021-04-16 | 한국전자통신연구원 | 길이가 16200이며, 부호율이 2/15인 ldpc 부호어 및 64-심볼 맵핑을 위한 비트 인터리버 및 이를 이용한 비트 인터리빙 방법 |
KR102287637B1 (ko) * | 2015-02-17 | 2021-08-10 | 한국전자통신연구원 | 길이가 16200이며, 부호율이 4/15인 ldpc 부호어 및 64-심볼 맵핑을 위한 비트 인터리버 및 이를 이용한 비트 인터리빙 방법 |
WO2016137234A1 (en) * | 2015-02-24 | 2016-09-01 | Samsung Electronics Co., Ltd. | Transmitter and repetition method thereof |
KR101776267B1 (ko) | 2015-02-24 | 2017-09-07 | 삼성전자주식회사 | 송신 장치 및 그의 리피티션 방법 |
CN105703783B (zh) * | 2016-03-30 | 2019-10-18 | 成都凯腾四方数字广播电视设备有限公司 | 一种准并行结构的ldpc编码器 |
WO2017173389A1 (en) * | 2016-04-01 | 2017-10-05 | Cohere Technologies | Iterative two dimensional equalization of orthogonal time frequency space modulated signals |
RU2730434C1 (ru) * | 2016-08-12 | 2020-08-21 | Телефонактиеболагет Л М Эрикссон (Пабл) | Способы согласования скорости для ldpc-кодов |
EP3316486B1 (en) * | 2016-10-25 | 2023-06-14 | Université de Bretagne Sud | Elementary check node-based syndrome decoding with input pre-sorting |
WO2018218466A1 (zh) | 2017-05-28 | 2018-12-06 | 华为技术有限公司 | 信息处理的方法和通信装置 |
WO2018218692A1 (zh) * | 2017-06-03 | 2018-12-06 | 华为技术有限公司 | 信息处理的方法和通信装置 |
KR102378706B1 (ko) * | 2017-06-23 | 2022-03-28 | 삼성전자 주식회사 | 통신 또는 방송 시스템에서 채널 부호화/복호화 방법 및 장치 |
US10623139B2 (en) * | 2017-06-23 | 2020-04-14 | Samsung Electronics Co., Ltd. | Method and apparatus for channel encoding and decoding in communication or broadcasting system |
FR3113214A1 (fr) * | 2020-07-31 | 2022-02-04 | Airbus Defence And Space Sas | Dispositif et procédé d’encodage de codes LDPC |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1359197A (zh) * | 2001-06-21 | 2002-07-17 | 张红雨 | 达到香农限的随机扩展迭代码方法 |
CN1481130A (zh) * | 2002-07-26 | 2004-03-10 | 产生低密度奇偶校验码的方法和系统 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6453442B1 (en) * | 1999-08-20 | 2002-09-17 | At&T Corp. | Two stage S—Random interleaver |
US7116710B1 (en) * | 2000-05-18 | 2006-10-03 | California Institute Of Technology | Serial concatenation of interleaved convolutional codes forming turbo-like codes |
EP1257064B1 (en) * | 2001-05-10 | 2008-11-19 | STMicroelectronics S.r.l. | Prunable S-random block interleaver method and corresponding interleaver |
US6938196B2 (en) * | 2001-06-15 | 2005-08-30 | Flarion Technologies, Inc. | Node processors for use in parity check decoders |
WO2003065591A2 (en) * | 2002-01-29 | 2003-08-07 | Seagate Technology Llc | A method and decoding apparatus using linear code with parity check matrices composed from circulants |
US7395484B2 (en) * | 2002-07-02 | 2008-07-01 | Mitsubishi Denki Kabushiki Kaisha | Check matrix generation method and check matrix generation device |
US7178080B2 (en) * | 2002-08-15 | 2007-02-13 | Texas Instruments Incorporated | Hardware-efficient low density parity check code for digital communications |
US7120856B2 (en) * | 2002-09-25 | 2006-10-10 | Leanics Corporation | LDPC code and encoder/decoder regarding same |
KR100809619B1 (ko) * | 2003-08-26 | 2008-03-05 | 삼성전자주식회사 | 이동 통신 시스템에서 블록 저밀도 패러티 검사 부호부호화/복호 장치 및 방법 |
KR100922956B1 (ko) * | 2003-10-14 | 2009-10-22 | 삼성전자주식회사 | 저밀도 패리티 검사 코드의 부호화 방법 |
US7418051B2 (en) * | 2003-11-26 | 2008-08-26 | Lucent Technologies Inc. | Nonsystematic repeat-accumulate codes for encoding and decoding information in a communication system |
US7568145B2 (en) * | 2004-04-15 | 2009-07-28 | Libero Dinoi | Prunable S-random interleavers |
-
2005
- 2005-04-04 CN CN201010276240.6A patent/CN101924565B/zh active Active
- 2005-04-04 US US11/547,078 patent/US7831883B2/en active Active
- 2005-04-04 WO PCT/CA2005/000505 patent/WO2005096510A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1359197A (zh) * | 2001-06-21 | 2002-07-17 | 张红雨 | 达到香农限的随机扩展迭代码方法 |
CN1481130A (zh) * | 2002-07-26 | 2004-03-10 | 产生低密度奇偶校验码的方法和系统 |
Also Published As
Publication number | Publication date |
---|---|
CN101924565A (zh) | 2010-12-22 |
US7831883B2 (en) | 2010-11-09 |
WO2005096510A1 (en) | 2005-10-13 |
US20090083604A1 (en) | 2009-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101924565B (zh) | Ldpc编码器、解码器、系统及方法 | |
CN100546205C (zh) | 构造低密度奇偶校验码的方法、译码方法及其传输系统 | |
US8196025B2 (en) | Turbo LDPC decoding | |
Johnson | Iterative error correction: Turbo, low-density parity-check and repeat-accumulate codes | |
US8185797B2 (en) | Basic matrix, coder/encoder and generation method of the low density parity check codes | |
US7536623B2 (en) | Method and apparatus for generating a low-density parity check code | |
US7343548B2 (en) | Method and apparatus for encoding and decoding data | |
EP2387157B1 (en) | Efficient encoding of LDPC codes using structured parity-check matrices | |
CN101162907B (zh) | 一种利用低密度奇偶校验码实现编码的方法及装置 | |
EP1850484A1 (en) | Basic matrix based on irregular ldcp, codec and generation method thereof | |
CN100505555C (zh) | 一种无线通信系统中非正则低密度奇偶校验码的生成方法 | |
US7934147B2 (en) | Turbo LDPC decoding | |
CN109586732B (zh) | 中短码ldpc编解码系统和方法 | |
CN100425000C (zh) | 双涡轮结构低密度奇偶校验码解码器及解码方法 | |
CN103746708A (zh) | 一种Polar-LDPC级联码的构造方法 | |
CN102006085B (zh) | 类eIRA准循环低密度奇偶校验码的校验矩阵构造方法 | |
US7493548B2 (en) | Method and apparatus for encoding and decoding data | |
CN101796488A (zh) | 奇偶校验矩阵的产生 | |
CN1973440A (zh) | Ldpc编码器、解码器、系统及方法 | |
CN101465655B (zh) | 极短码长低密度奇偶校验码的编码方法 | |
CN103199877B (zh) | 一种结构化ldpc卷积码构造编码方法 | |
Lou et al. | Channel Coding | |
CN105871385B (zh) | 一种ldpc卷积码构造方法 | |
CN106685432A (zh) | 一种基于完备循环差集的大围长Type‑II QC‑LDPC码构造方法 | |
CN103338044B (zh) | 一种适用于深空光通信系统的原模图码 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: APPLE COMPUTER, INC. Free format text: FORMER OWNER: YANXING BIDEKE CO., LTD. Effective date: 20130407 Owner name: YANXING BIDEKE CO., LTD. Free format text: FORMER OWNER: NORTEL NETWORKS LTD (CA) Effective date: 20130407 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20130407 Address after: American California Applicant after: APPLE Inc. Address before: American New York Applicant before: NORTEL NETWORKS LTD. Effective date of registration: 20130407 Address after: American New York Applicant after: NORTEL NETWORKS LTD. Address before: Quebec Applicant before: NORTEL NETWORKS Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101222 Assignee: HUAWEI TECHNOLOGIES Co.,Ltd. Assignor: APPLE Inc. Contract record no.: 2015990000754 Denomination of invention: LDPC encoders, decoders, systems and methods Granted publication date: 20141015 License type: Common License Record date: 20150827 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |