Flexible polar encoders and decoders
US10193578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6561
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Modern communication systems must cope with varying channel conditions and differing throughput constraints. Polar codes despite being the first error-correcting codes with an explicit construction to achieve the symmetric capacity of memoryless channels are not currently employed against other older coding protocols such as low-density parity check (LDPC) codes as their performance at short/moderate lengths has been inferior and their decoding algorithm is serial leading to low decoding throughput. Accordingly techniques to address these issues are identified and disclosed including decoders that decode constituent codes without recursion and/or recognize classes of constituent directly decodable codes thereby increasing the decoder throughput. Flexible encoders and decoders supporting polar codes of any length up to a design maximum allow adaptive polar code systems responsive to communication link characteristics, performance, etc. while maximizing throughput. Further, designers are provided flexibility in implementing either hardware or software implementations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.