Method and arrangement for HARQ in wireless multi-carrier systems
US8205127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2005 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to automatic repeat request (ARQ) in wireless communication systems wherein a coded message block is spread over a plurality of sub-carriers or components. According to the invention an equalizing HARQ method is introduced. The equalizing HARQ identifies (215) and retransmits (230) the most distorted parts of a received coded message block. In addition, the retransmitted parts can optionally be relocated (225) to components of higher quality, which ensures good retransmission quality for those badly distorted parts in the prior transmission. After a soft-bit combination in a receiving node, the final received codeword experience an equalized quality variation with low multi-state performance loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.