公开(公告)号：US07966544B2

公开(公告)日：2011-06-21

申请号：US11737442

申请日：2007-04-19

Applicant: Laurent Paumier ,  Pascal Urard

Inventor： Laurent Paumier ,  Pascal Urard

IPC: H03M13/00

CPC classification number: H03M13/1165 ,  H03M13/1105 ,  H03M13/1134 ,  H03M13/1137 ,  H03M13/27 ,  H03M13/2757 ,  H03M13/2792

Abstract: An input memory of an LDPC decoder is loaded with data corresponding to an LDPC frame to be decoded and including N LLRs, of which K are information LLRs and N−K are parity LLRs. At least one stream is formed of binary words of a first type, each corresponding to multiple information LLRS, with the aid of a serial/parallel conversion module, and at least one stream is formed of binary words of a second type, each corresponding to multiple parity LLRs, with the aid of a row/column interlacing device comprising a two-dimensional first-in first-out ring buffer. The first memory accesses are made in page mode in order to write the binary words of the first type to a first zone of the input memory, and the second memory accesses are made in page mode in order to write the binary words of the second type to a second zone.

Abstract translation: LDPC解码器的输入存储器加载与要解码的LDPC帧相对应的数据，并且包括N个LLR，其中K是信息LLR，N-K是奇偶校验LLR。 借助于串行/并行转换模块，至少一个流由第二类型的二进制字形成，每个二进制字对应于多个信息LLRS，并且至少一个流由第二类型的二进制字形成，每一个对应于 借助于包括二维先进先出环形缓冲器的行/列交织装置的多个奇偶校验LLR。 第一存储器访问是以页模式进行的，以便将第一类型的二进制字写入输入存储器的第一区，并且第二存储器访问以页模式进行，以便写入第二类的二进制字 到第二区。