Method and device for decoding polar codes
US9319070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Nov 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0858
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a method and a device for decoding Polar codes. A reliable subset is extracted from an information bit set of the Polar codes, where reliability of information bits in the reliable subset is higher than reliability of other information bits. The method includes: obtaining a probability value or an LLR of a current decoding bit of the Polar codes; when the current decoding bit belongs to the reliable subset, performing judgment according to the probability value or the LLR of the current decoding bit to determine a decoding value of the current decoding bit, keeping the number of decoding paths of the Polar codes unchanged, and modifying probability values of all the decoding paths by using the probability value or the LLR of the current decoding bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.