ARQ retransmission with reordering scheme employing multiple redudancy versions and receiver/transmitter therefor
US6798846B2 · kind B2 · utility
20Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03318
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An ARQ retransmission method in a communication system, wherein data packets comprising modulation symbols are retransmitted based on an automatic repeat request and subsequently combined with previously received data packets, the symbols of said data packets being modulated by a mapping unit employing a predetermined signal constellation. The retransmitted data packets being retransmitted in form of a selected one of a plurality of different redundancy versions. According to the invention, the bits to be transmitted are reordered prior to modulation over the retransmissions in accordance with the selected redundancy version.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.