Decoder performance for block product codes
US7260762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2004 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Sep 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/453
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of improving block turbo decoder performance that comprises receiving soft input information corresponding to a first set of constituent codes of a block product code, scaling soft extrinsic information from a second set of constituent codes of the block product code, processing the scaled soft extrinsic information and the soft input information to produce soft output information suitable for a soft-input soft-output decoder, and performing one or more of: modifying encoded bit positions of the block product code, modifying decoded bit positions of a the block product code, permuting decoding parameters of the block product code to effect a preferred decoding order, detecting cases where a number of test patterns is insufficient to decode the soft output information and thereafter providing a different number of test patterns suitable for decoding the soft output information, and adapting the number of test patterns in the soft-input soft-output decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.