Apparatus and method for channel encoding/decoding in communication system using variable-length LDPC codes
US8261152B2 · kind B2 · utility
7Cited by
1References
18Claims
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Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Jun 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6393
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating Low-Density Parity Check (LDPC) codes of various block lengths from a structured LDPC code in a communication system is provided. To support various block lengths, predefined rules are applied to a parity check matrix of an LDPC code, and then shortening is selectively applied to the parity check matrix. Subsequently, if information data bits are input, the input data information bits are encoded into an LDPC codeword by using the parity check matrix according to a preset encoding scheme, and then the encoded LDPC codeword is transmitted after puncturing is selectively applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.