Iteration dependent bitwise bit flipping decoder
US12034455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2022 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/3723
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An LDPC decoder receives channel information and performs a bit flipping algorithm to correct unsatisfied checks with respect to a parity matrix H. The threshold condition for determining whether to flip a bit is a function of the channel information itself. A threshold Thk used to evaluate the threshold condition may vary between iterations based on the number of iterations, number of bits flipped in the previous iteration, and number of unsatisfied checks. A threshold Thki may be calculated for each bit position. Thki and the threshold condition may be a function of whether bit position i was flipped in a previous iteration. A binning approach for parameters of the threshold condition may be used to reduce hardware complexity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.