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    • 51. 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。
    • 57. 发明授权
    • Channel coding/decoding apparatus and method for a CDMA mobile communication system
    • CDMA移动通信系统的信道编码/解码装置和方法
    • US07050417B2
    • 2006-05-23
    • US09933091
    • 2001-08-20
    • Jae-Yoel Kim
    • Jae-Yoel Kim
    • H04B7/216
    • H04L1/0057H03M13/136H03M13/6362H04L1/0069
    • Disclosed is a method for generating (2k−2t) first order Reed-Muller codes from 2k first order Reed-Muller codes based on k input information bits. The method comprises selecting t linearly independent kth order vectors; generating 2t linear combinations by linearly combining the t selected vectors; calculating 2t puncturing positions corresponding to the 2t linear combinations; selecting one k×k matrix out of a plurality of k×k matrixes having k×k inverse matrixes; calculating 2t new puncturing positions by multiplying each of the 2t puncturing positions by the selecting k×k matrix; and generating (2k−2t) first order Reed-Muller codes by puncturing the 2t new puncturing positions from the 2k first order Reed-Muller codes.
    • 公开了一种用于从基于第一阶Reed-Muller码的第二阶Reed-Muller码产生(2-k2-2)的第一阶Reed-Muller码的方法 在k个输入信息位上。 该方法包括选择t个线性独立的第k个次序矢量; 通过线性组合t个所选择的向量来产生2 计算与2条线性组合对应的2个删截位置; 从具有k×k个逆矩阵的多个k×k矩阵中选择一个k×k矩阵; 通过将2个删截位置乘以选择kxk矩阵来计算2个新的删截位置; 并通过从第2阶段中删除2个新的删截位置来产生第一阶Reed-Muller码(2-k2-2) k一次Reed-Muller码。