Early termination in convolutional low density parity check decoding
US12244414B1 · kind B1 · utility
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18Claims
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Key dates
| Filing date | Jul 2, 2021 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Jul 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1102
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for more efficiently decoding convolutional LDPC encoded communication signals are described. A decoder circuit iteratively determines the values of received data bits and confidence values corresponding to the determined data bit values. Using the confidence values and one or both of check fail counters and log likelihood ratio (LLR) sign changes, the decoder circuit can determine that a desired level of confidence has been satisfied and can subsequently terminate decoding operations to save power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.