Puncture-constrained interleaving for concatenated codes
US7827472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Nov 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6362
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to an encoding system and method for generating concatenated codes which utilize interleaving and data puncturing. The method includes selecting first and second puncture location sets defining desired puncture locations in non-interleaved and interleaved data sequences, respectively. A puncture-constrained interleaver is provided, which permutes the first puncture location set into the second puncture location set, so as to provide desired regular puncture patterns for all constituent codes. In a preferred embodiment, the puncture-constrained interleaving alters a symbol location relative to a puncture mask so as to satisfy a pre-defined spread or distance constraint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.