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    • 65. 发明授权
    • Apparatus and method for encoding and decoding a space-time low density parity check code with full diversity gain
    • 用于对具有全分集增益的时空低密度奇偶校验码进行编码和解码的装置和方法
    • US07389464B2
    • 2008-06-17
    • US11052673
    • 2005-02-07
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • H03M13/25H03M13/29H04B7/06H04B7/07
    • H04L1/0057H03M13/1102H04L1/0625H04L1/0631
    • In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.
    • 在包括发射机和接收机的移动通信系统中,通过编码所接收的信息数据来生成LDPC码,使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵 第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列,以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵, 第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。 通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。
    • 67. 发明授权
    • Apparatus and method for coding and decoding irregular repeat accumulate codes
    • 用于编码和解码不规则重复累加码的装置和方法
    • US07302629B2
    • 2007-11-27
    • US11009231
    • 2004-12-10
    • Gyu-Bum KyungHong-Sil JeongJae-Yoel Kim
    • Gyu-Bum KyungHong-Sil JeongJae-Yoel Kim
    • H03M13/29H03M13/45
    • H03M13/2972H03M13/1148H03M13/1185H03M13/1194H03M13/27
    • An apparatus and method for coding an irregular Repeat Accumulate (RA) code. A repeater repeats a received information word such that the information word corresponds to weights of a first information part and a second information part of a parity check matrix in which permutation matrixes are arranged in the first information part and the second information part corresponding to the information word such that a minimum length of a cycle on a factor graph of the irregular RA code becomes a predetermined length and weights are irregular, and a dual diagonal matrix is arranged in a parity part corresponding to a parity. An interleaver interleaves a signal output from the repeater using an interleaving scheme predefined for the parity check matrix. An accumulator generates the irregular RA code by accumulating a signal output from the interleaver according to a weight of the parity part.
    • 用于对不规则重复累积(RA)代码进行编码的装置和方法。 中继器重复接收到的信息字,使得信息字对应于奇偶校验矩阵的第一信息部分和第二信息部分的权重,其中排列矩阵排列在第一信息部分中,第二信息部分对应于信息 字,使得不规则RA码的因子图上的周期的最小长度变为预定长度,并且权重是不规则的,并且在对应于奇偶校验的奇偶校验部分中布置双对角矩阵。 交织器使用为奇偶校验矩阵预定义的交织方案来交织从中继器输出的信号。 累加器通过根据奇偶校验部分的权重累加从交织器输出的信号来产生不规则RAD码。