Radio communication apparatus for feeding back radio link quality information
US7583968B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Feb 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1671
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A base station has a time correlation calculating unit for estimating a variation-with-time characteristic of radio link quality using radio downlink quality information reported by a mobile station, a target error rate setting unit for changing over a target error rate adaptively using this variation-with-time characteristic, and an MCS decision unit for deciding a modulation scheme and/or encoding rate, in such a manner that packet error rate becomes equal to the target error rate, using the radio link quality information as well as reception success/failure information reported by the mobile station. The base station transmits a packet based upon the modulation scheme and/or encoding rate decided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.