System and method for forward error correction decoding using soft information
US7398454B2 · kind B2 · utility
46Cited by
3References
18Claims
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Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | May 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for soft decision forward error correction (FEC) decoding may be used to determine a possible error in a differential detection signal, for example, in a DPSK system. The system and method uses the constructive and destructive signals from a demodulator to provide an error locating signal. Using the error locating signal, the system and method converts the differential detection signal into a soft decision signal including multi-level soft values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.