Unified pattern for puncturing and shortening polar codes
US11398837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2017 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes encoding K information bits using a polar code with a mother code length, N, to generate a stream of encoded bits storing a portion of the encoded bits in a circular buffer of size N reordering P blocks of the circular buffer according to row weights of a Hadamard matrix J interlacing the encoded bits of the blocks having a same row weight selecting, based on the row weights, a subset of the encoded bits in the blocks to modify modifying the selected subset of the encoded bits and transmitting the encoded bits in the P blocks, subsequent to modifying the selected subset of the encoded bits, via transmission resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.