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公开(公告)号:US20160049962A1
公开(公告)日:2016-02-18
申请号:US14779708
申请日:2013-04-25
申请人: LI, Jian , XUE, Yisheng , HUANG, Yin , XU, Changlong , HOU, Jilei , QUALCOMM INCORPORATED
发明人: Jian Li , Ylsheng Xue , Yin Huang , Changlong Xu , Jilei Hou
CPC分类号: H03M13/1174 , H03M13/1102 , H03M13/611 , H03M13/616
摘要: A method of data encoding is disclosed. A communications device receives a set of information bits to be encoded into a codeword (c), which includes the set of information bits and a set of parity bits. A first bit value is assigned to a first parity bit in the set of parity bits. The remaining parity bits are then encoded based, at least in part, on the first bit value assigned to the first parity bit. The device may encode the remaining parity bits using the set of information bits and a parity check matrix (H) for a low density parity check (LDPC) code. The device may also generate a new parity check matrix (H0) based on linearly independent rows of the parity check matrix H, and iteratively evaluate each of the remaining parity bits based on the equation: H0c=0. The device may then determine whether the encoded codeword c is a valid codeword given the LDPC code, and change one or more bit values of the codeword if c is not a valid codeword.
摘要翻译: 公开了一种数据编码方法。 通信设备接收要编码的一组信息比特的码字(c),其包括该组信息比特和一组奇偶校验位。 第一比特值被分配给奇偶校验位集合中的第一奇偶校验位。 然后,至少部分地基于分配给第一奇偶校验位的第一比特值来编码剩余的奇偶校验位。 该装置可以使用一组信息比特和用于低密度奇偶校验(LDPC)码的奇偶校验矩阵(H))来编码剩余的奇偶校验比特。 该装置还可以基于奇偶校验矩阵H的线性独立行生成新的奇偶校验矩阵(H0),并且基于以下等式迭代地评估剩余奇偶校验位中的每一个:H0c = 0。 然后,设备可以确定编码码字c是否是给定LDPC码的有效码字,并且如果c不是有效码字,则改变码字的一个或多个比特值。