发明名称 |
Apparatus and method for coding/decoding block low density parity check code in a mobile communication system |
摘要 |
A method for generating a parity check matrix of a block LDPC code is disclosed. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.
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申请公布号 |
US7313752(B2) |
申请公布日期 |
2007.12.25 |
申请号 |
US20040926932 |
申请日期 |
2004.08.26 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KYUNG GYU-BUM;JEONG HONG-SIL;KIM JAE-YOEL;PARK SUNG-EUN;YANG KYEONG-CHEOL;MYUNG SE-HO |
分类号 |
G06F11/00;H04L1/00;H03M13/11 |
主分类号 |
G06F11/00 |
代理机构 |
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