Interleaver for turbo codes as a function of the puncturing pattern
US10560124B2 · kind B2 · utility
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Inventors
Key dates
| Filing date | Jun 20, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6362
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method is provided for encoding an input digital message bearing K information symbols using a turbo-encoder forming a turbocode, the turbo-encoder including an interleaver and first and second encoders for encoding according to at least one elementary code and delivering the information symbols and redundancy symbols. With a puncturing of the symbols delivered by the turbo-encoder being done according to at least one periodic puncturing pattern of a length N, defining the puncturing period N, the interleaver distributes the information symbols of the input message into Q layers of the interleaved input message in complying with an interleaving function defined from the at least one puncturing pattern, according to the relationship: π(i)=Pi+S(i mod Q)mod K=Pi+(Tl+AlQ)mod K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.