Soft input-soft output forward error correction decoding for turbo codes
US7117418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2001 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6502
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of turbo decoding using soft input-soft output information. A vector of data is sampled from a channel of data. The vector of data is then processed to output a final code word of bits. A final reliability vector of reliability values associated with the final code word is generated, such that each bit of the final code word of bits has a corresponding reliability value in the final reliability vector. Corresponding reliability values for one or more bit positions of the final code word are determined by a difference of distance metrics, and corresponding reliability values for one or more bit positions of the final code word are determined utilizing a numerical approximation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.