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101.
公开(公告)号:WO2008092040A3
公开(公告)日:2008-12-31
申请号:PCT/US2008051961
申请日:2008-01-24
Applicant: QUALCOMM INC , KHANDEKAR AAMOD , RICHARDSON THOMAS
Inventor: KHANDEKAR AAMOD , RICHARDSON THOMAS
IPC: H03M13/11
CPC classification number: H03M13/116 , H03M13/1137 , H03M13/1185 , H03M13/1188 , H03M13/616 , H03M13/6393 , H03M13/6516 , H04L1/0007 , H04L1/0009 , H04L1/1812
Abstract: Techniques to support low density parity check (LDPC) encoding and decoding are described. In an aspect, LDPC encoding and decoding of packets of varying sizes may be supported with a set of base parity check matrices of different dimensions and a set of lifting values of different powers of two. A base parity check matrix G of dimension mBOEB may be used to encode a packet of kB=nB-mB information bits to obtain a codeword of nB code bits. This base parity check matrix may be "lifted" by a lifting value of L to obtain a lifted parity check matrix H of dimension L·mBOE·nB. The lifted parity check matrix may be used to encode a packet of up to L·kB information bits to obtain a codeword of L·nB code bits. A wide range of packet sizes may be supported with the set of base parity check matrices and the set of lifting values.
Abstract translation: 描述了支持低密度奇偶校验(LDPC)编码和解码的技术。 在一方面,可以用不同维度的一组基本奇偶校验矩阵和两个不同功率的提升值的集合来支持不同大小的分组的LDPC编码和解码。 尺寸mBOEB的基本奇偶校验矩阵G可以用于对kB = nB-mB信息比特的分组进行编码,以获得nB个码比特的码字。 该基本奇偶校验矩阵可以通过提升值L“提升”,以获得尺寸L·mBOE·nB的升高的奇偶校验矩阵H. 提升奇偶校验矩阵可以用于编码高达L·kB信息比特的分组,以获得L·nB码比特的码字。 可以使用一组基本奇偶校验矩阵和提升值集来支持大范围的分组大小。