Hybrid automatic repeat request (HARQ) with polar coded transmissions
US11362769B2 · kind B2 · utility
2Cited by
3References
21Claims
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Key dates
| Filing date | Nov 4, 2016 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jul 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For communication utilizing polar codes, a hybrid automatic repeat request (HARQ) algorithm is provided that takes advantage of the benefits of chase combining HARQ (HARQ-CC) and incremental redundancy HARQ (HARQ-IR), by selecting one or the other in accordance with a code rate of the first transmission. In some examples, the HARQ algorithm utilizes HARQ-IR when the code rate in the first transmission is greater than a code rate threshold, and utilizes HARQ-CC when the code rate in the first transmission is less than the code rate threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.