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    • 25. 发明授权
    • Apparatus and method for generating (n,3) code and (n,4) code using simplex codes
    • 使用单字代码生成(n,3)码和(n,4)码的装置和方法
    • US07451382B2
    • 2008-11-11
    • US10848033
    • 2004-05-18
    • Jae-Yoel KimSung-Oh Hwang
    • Jae-Yoel KimSung-Oh Hwang
    • H03M13/00
    • H03M13/271H03M13/05H03M13/27
    • An apparatus and method for generating a (n, 3) code and a (n, 4) code using simplex codes are disclosed. To encode a 3-bit information bit stream to a (n, 3) codeword with n code symbols, a simplex encoder generates a first-order Reed-Muller codeword with (P+1) code symbols from the input information bit stream for n>P, and punctures the first code symbol of the (P+1) first-order Reed-Muller code symbols to produce a (P, 3) simplex codeword. An interleaver permutates the P code symbols of the (P, 3) simplex codeword by columns according to a predetermined pattern. A repeater repeats the column-permutated (P, 3) simplex codeword until the number of repeated codes is n and outputs a (n, 3) codeword with the n repeated code symbols.
    • 公开了一种使用单工码生成(n,3)码和(n,4)码的装置和方法。 为了将3位信息比特流编码为具有n个码符号的(n,3)码字,单工编码器从输入信息比特流生成具有(P + 1)个码符号的一阶里德 - 穆勒码字, (P + 1)一阶Reed-Muller码符号的第一代码符号,以产生(P,3)单数码字。 交织器根据预定模式将列(P,3)单码字的P码符号排列。 中继器重复列排列(P,3)单码字,直到重复码数为n,并输出具有n个重复码符号的(n,3)码字。
    • 30. 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。