HARQ of polar codes with parity check bits
US11646828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Dec 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1819
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices (e.g., base stations, user equipment (UEs), etc.) may utilize polar coding along with hybrid automatic repeat request (HARQ) techniques. In these systems, a device may encode bits for transmission by mapping information and parity check bits to a first set of polarized bit channels of a polar code. If this transmission is not successfully received at a decoding device, the encoding device may generate a HARQ retransmission. The device may copy information bits to a second set of polarized bit channels of a second polar code containing the first polar code and may assign parity check bits to the second set of bit channels for the copied information bits. These additional parity check bits for the repeated information bits may increase transmission reliability and may support improved early termination at the decoding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.