发明名称 |
Low density parity check (LDPC) coding in communication systems |
摘要 |
A communication device is configured to encode and/or decode low density parity check (LDPC) coded signals. Such LDPC coded signals are characterized by LDPC matrices having a particular form. An LDPC matrix may be partitioned into a left hand side matrix and the right hand side matrix. The right hand side matrix can be lower triangular such that all of the sub-matrices therein are all-zero-valued sub-matrices (e.g., all of the elements within an all-zero-valued sub-matrix have the value of “0”) except for those sub-matrices located on a main diagonal of the right hand side matrix and another diagonal that is adjacently located to the left of the main diagonal. A device may be configured to employ different LDPC codes having different LDPC matrices for different LDPC coded signals. The different LDPC matrices may be based generally on a common form (e.g., with a right hand side matrix as described above). |
申请公布号 |
US9154261(B2) |
申请公布日期 |
2015.10.06 |
申请号 |
US201314068479 |
申请日期 |
2013.10.31 |
申请人 |
Broadcom Corporation |
发明人 |
Shen Ba-Zhong;Lee Tak K.;Min Jonathan S.;Kliger Avi;Prodan Richard S. |
分类号 |
H04L1/00;H03M13/11 |
主分类号 |
H04L1/00 |
代理机构 |
Garlick & Markison |
代理人 |
Garlick & Markison ;Short Shayne X. |
主权项 |
1. A communication device comprising:
a communication interface configured to receive and process a low density parity check (LDPC) coded signal to generate a digital signal; and a processor configured to decode the digital signal using an LDPC matrix to make one or more estimates of one or more information bits, wherein the LDPC matrix includes a plurality of sub-matrices arranged in a left hand side matrix and a right hand side matrix, wherein the right hand side matrix is lower triangular and includes all-zero-valued sub-matrices except for CSI (Cyclic Shifted Identity) sub-matrices located on a main diagonal of the right hand side matrix and another diagonal that is adjacently located to a left of the main diagonal. |
地址 |
Irvine CA US |