Tail-biting convolutional decoder and decoding method
US8762822B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 17, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Aug 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/4169
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for decoding tail-biting convolutional codes by using information within the received data stream that traditionally has not been used or been available to the convolutional decoder, e.g., cyclic redundancy check (CRC) and bit information known by both the transmitter and receiver. Further, a single parallel trace-back is used that reduces implementation complexity. In addition, the least reliable decisions made during forward processing may be reversed in order to generate additional possible codeword candidates. These techniques can be used to reduce false detection rates (FDRs) and/or detection error rates (DERs).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.