Absorb decode algorithm for 10GBase-T LDPC decoder
US8381069B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2011 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Oct 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.