Iterative error-correction for turbo code decoding
US6654927B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/658
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An iterative error-correction for decoding digital data transmitted or broadcasted is disclosed. The present invention is especially effective when there is high transmission noise and is applicable in decoding Turbo codes. The iterative decoding generally utilizes at least two parallel decoding processes and comprises two iterations from which the decoded data is obtained by combining decoded elements of the iterations. Also, for each iteration, an intermediate decoded data element is multiplied by a scaling factor based upon parameters of the previously decoded data element block and is used on the next decoding iteration. By utilizing at least two parallel decoding processes, the number of errors is significantly reduced and the decoding process may be optimally terminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.