Apparatus and method of encoding/decoding block low density parity check codes in a communication system
    2.
    发明公开
    Apparatus and method of encoding/decoding block low density parity check codes in a communication system 有权
    装置和方法用于在通信系统中编码/的低密度奇偶校验块码解码

    公开(公告)号:EP1868294A1

    公开(公告)日:2007-12-19

    申请号:EP07011789.0

    申请日:2007-06-15

    IPC分类号: H03M13/11

    摘要: The present invention provides an apparatus and method of transmitting/receiving a signal supporting a plurality of code rates in a communication system using a block LDPC code. The child parity check matrix used for encoding/decoding includes a plurality of parity blocks comprising permutation or zero matrixes in order to facilitate encoding. Furthermore, the used child parity check matrix has an extended structure of a parent parity check matrix. Puncturing can be employed in order to obtain more code rates. Hence a parent codeword, a child codeword having code rate less that the code rate of the parent codeword, and a child codeword having code rate greater than the code rate of the parent codeword can be generated by only using the child parity check matrix.

    摘要翻译: 本发明提供的装置和发送/接收使用的块LDPC码支持码率的多个通信系统中的信号的方法。 用于编码/解码的子奇偶校验矩阵包括奇偶校验块包含置换或零矩阵,以便于编码的复数。 进一步,所述usedchild奇偶校验矩阵具有到父奇偶校验矩阵的扩展结构。 打孔可以为了获得更多的码率来使用。 因此,一个码字母,一个具有子码字编码率少做可以通过仅使用子奇偶校验矩阵来生成父码字的编码率,和一个具有子码字编码率比亲本的码字的码速率。