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1.发明公开METHOD AND SYSTEM FOR PROVIDING LOW DENSITY PARITY CHECK (LDPC) CODING FOR SCRAMBLED CODED MULTIPLE ACCESS (SCMA) 审中-公开提供用于加扰编码多路访问（SCMA）的低密度奇偶校验（LDPC）编码的方法和系统
公开(公告)号：EP3261259A1
公开(公告)日：2017-12-27
申请号：EP17185474.8
申请日：2011-01-12
发明人： Lin-Nan, Lee , Mustafa, Eroz
IPC分类号： H03M13/11
CPC分类号： H03M13/13 , H03M13/1117 , H03M13/1134 , H03M13/1137 , H03M13/118 , H03M13/1194 , H03M13/63 , H03M13/6561 , H03M13/6566 , H04B1/7105 , H04J11/003 , H04J13/0003 , H04J13/0029
摘要： A multiple access scheme is described. One or more encoders are configured to encode a plurality of bit streams using Low Density Parity Check (LDPC) coding. The bit streams correspond to a respective plurality of terminals. The plurality of bit streams are converted to provide a multiple access scheme for the terminals.
摘要翻译： 描述了多路访问方案。 一个或多个编码器被配置为使用低密度奇偶校验（LDPC）编码对多个比特流进行编码。 比特流对应于相应的多个终端。 多个比特流被转换以为终端提供多址方案。
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公开(公告)号：EP1905157B1
公开(公告)日：2016-11-02
申请号：EP06778997.4
申请日：2006-06-30
申请人： Orange
IPC分类号： H03M13/11
CPC分类号： H03M13/1194 , H03M13/1105 , H03M13/116 , H03M13/118 , H03M13/1185 , H03M13/2906
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公开(公告)号：EP1974472B1
公开(公告)日：2009-04-15
申请号：EP07718051.1
申请日：2007-01-18
申请人： France Télécom
IPC分类号： H03M13/29
CPC分类号： H03M13/2972 , H03M13/1194 , H03M13/2771 , H03M13/2978 , H03M13/6566
摘要： The invention concerns a method for low latency encoding of an input bit sequence (SO) into an encoded bit sequence (S) and a corresponding decoding method, said encoding method including a first encoding step (E1) applied on bits of the input bit sequence (SO), based on a first code; an interleaving step (E3) for interleaving, with an interleaver, the bits derived from said first code; a second so-called parity encoding step (E4), applied to the bits derived from said interleaver, based on a second code, to generate said encoded bit sequence (S). The method is characterized in that said second parity encoding step (E4) starts after the interleaving of a predetermined number Δ of bits, said predetermined number Δ of bits ranging between a smaller number Δi of bits depending on at least one parameter of said interleaving step (E3), and a first greater number Δs of bits corresponding to the total number of bits to be processed during said first interleaving step (E3)
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公开(公告)号：EP1905157A2
公开(公告)日：2008-04-02
申请号：EP06778997.4
申请日：2006-06-30
申请人： France Télécom
IPC分类号： H03M13/11
CPC分类号： H03M13/1194 , H03M13/1105 , H03M13/116 , H03M13/118 , H03M13/1185 , H03M13/2906
摘要： The invention concerns a communication a method and a system comprising a first entity (3) including an information source (9) and a coding device (11), connected via a channel (7) transmitting data to a second entity (5) including a decoding device (13), the encoding device (11) being designed to encode a data sequence emitted by the information source (9) to form a set of code words from a parity check matrix comprising two matrix zones, each matrix zone including at least one processing matrix, one matrix including a single '1' per column and a single '1' per line, and a triangular matrix; and the decoding device being designed to decode an encoded reception signal received by the second entity, said encoded reception signal being derived from the set of code words constructed in accordance with said parity check matrix.
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5.发明授权Method and apparatus for weighted non-binary repeat coding and space-time coding 有权为加权非二进制重复编码和空时编码的方法和装置
公开(公告)号：EP1330062B1
公开(公告)日：2005-10-26
申请号：EP03000670.4
申请日：2003-01-16
IPC分类号： H04L1/06
CPC分类号： H03M13/1194 , H03M13/1171 , H03M13/23 , H03M13/25 , H03M13/29 , H04L1/0618 , H04L1/08
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公开(公告)号：EP2076988B1
公开(公告)日：2018-05-02
申请号：EP07844656.4
申请日：2007-10-26
CPC分类号： H04L1/0057 , H03M13/1137 , H03M13/116 , H03M13/1185 , H03M13/1194 , H03M13/6306 , H03M13/6362 , H04L1/0009 , H04L1/0068 , H04L1/1819
摘要： Systems and methodologies are described that facilitate transmitting low-density parity-check encoded communications in a wireless communications network and incrementing such codes in response to requests from receiving devices. The LDPC codes can have associated constraints allowing the codes to be error corrected upon receipt. The requests for incremented codes can be in cases of low transmission power or high interference, for example, where the original code can be too error-ridden to properly decode. In this case, additional nodes can be added to current and/or subsequent communications to facilitate adding a more complex constraint to the LDPC code. In this regard, the large codes can require less validly transmitted nodes to predict error-ridden values as the additional constraint renders less ambiguity in possible node value choices.
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7.发明授权Channel encoding apparatus and method using a parallel concatenated low density parity check code 有权使用并行级联低密度奇偶校验码的信道编码设备和方法
公开(公告)号：EP1531552B1
公开(公告)日：2018-02-21
申请号：EP04027099.3
申请日：2004-11-15
发明人： Kyung, Gyu-Bum, c/o Samsung Electronics Co., Ltd. , Jeong, Hong-Sil, c/o Samsung Electronics Co., Ltd. , Kim, Jae-Yoel, c/o Samsung Electronics Co., Ltd.
CPC分类号： H03M13/2963 , H03M13/1102 , H03M13/1194 , H03M13/27 , H03M13/29
摘要： A channel encoding apparatus using a parallel concatenated low density parity check (LDPC) code. A first LDPC encoder generates a first component LDPC code according to information bits received. An interleaver interleaves the information bits according to a predetermined interleaving rule. A second LDPC encoder generates a second component LDPC code according to the interleaved information bits. A controller performs a control operation such that the information bits, the first component LDPC code which is first parity bits corresponding to the information bits, and the second component LDPC code which is second parity bits corresponding to the information bits are combined according to a predetermined code rate.
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公开(公告)号：EP1974472A1
公开(公告)日：2008-10-01
申请号：EP07718051.1
申请日：2007-01-18
申请人： France Télécom
IPC分类号： H03M13/29
CPC分类号： H03M13/2972 , H03M13/1194 , H03M13/2771 , H03M13/2978 , H03M13/6566
摘要： The invention concerns a method for low latency encoding of an input bit sequence (SO) into an encoded bit sequence (S) and a corresponding decoding method, said encoding method including a first encoding step (E1) applied on bits of the input bit sequence (SO), based on a first code; an interleaving step (E3) for interleaving, with an interleaver, the bits derived from said first code; a second so-called parity encoding step (E4), applied to the bits derived from said interleaver, based on a second code, to generate said encoded bit sequence (S). The method is characterized in that said second parity encoding step (E4) starts after the interleaving of a predetermined number Δ of bits, said predetermined number Δ of bits ranging between a smaller number Δi of bits depending on at least one parameter of said interleaving step (E3), and a first greater number Δs of bits corresponding to the total number of bits to be processed during said first interleaving step (E3)
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9.发明公开
公开(公告)号：EP1816750A1
公开(公告)日：2007-08-08
申请号：EP06002168.0
申请日：2006-02-02
IPC分类号： H03M13/11
CPC分类号： H03M13/1194 , H03M13/116
摘要： A novel construction of irregular LDPC codes based on block-permutation matrices is presented. It generalizes the existing constructions by introducing an additional row permutation of the parity check matrix. An optimization algorithm is presented for computing the permutation parameters.
摘要翻译： 提出了一种基于块置换矩阵的不规则LDPC码的新颖结构。 它通过引入奇偶校验矩阵的附加行排列来推广现有结构。 提出了一种用于计算置换参数的优化算法。
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10.发明公开Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权的装置和方法Blockkoden与niedriegem编码/解码泄漏奇偶校验在通信系统中
公开(公告)号：EP1511177A3
公开(公告)日：2006-07-26
申请号：EP04020337.4
申请日：2004-08-26
发明人： Kyung, Gyu-Bum, Samsung Electronics Co., Ltd. , Jeong, Hong-Sil, Samsung Electronics Co., Ltd. , Kim, Jae-Yoei, Samsung Electronics Co., Ltd. , Park, Sung-Eun, Samsung Electronics Co., Ltd. , Yang, Kyeong-Cheol, Samsung Electronics Co., Ltd. , Myung, Se-Ho, Samsung Electronics Co., Ltd.
IPC分类号： H03M13/11
CPC分类号： H03M13/1105 , H03M13/1102 , H03M13/1151 , H03M13/1162 , H03M13/1171 , H03M13/118 , H03M13/1185 , H03M13/1188 , H03M13/1194
摘要： A method for generating a parity check matrix of a block LDPC code is disclosed. The method includes determining a size of the parity check matrix based on a coding rate and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.
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