Method of decoding a turbo-code encoded signal in a receiver and corresponding receiver
US7277508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Nov 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0066
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for decoding a turbo-code encoded signal in a receiver. According to the method, the signal is received from a transmission channel, and the signal is digitally turbo-code decoded. Additionally, a quality information representative of conditions of the channel state estimation is dynamically determined, and the quality information is dynamically compared with a predetermined criteria for defining good or bad estimation conditions. A Maximum-A-Posteriori algorithm in the logarithmic domain is dynamically selected for good estimation conditions, or an approximation of the Maximum-A-Posteriori algorithm in the logarithmic domain is dynamically selected for bad estimation conditions. Also provided is a receiver that implements such a decoding method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.