Radio reception device, radio transmission device, and feedback method
US8520760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Apr 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0224
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Provided are a radio reception device, a radio transmission device, and a feedback method which can uniformly guarantee the feedback accuracy of an average channel quality indicator (CQI) even when the transmission band width is different. A channel estimation unit uses a pilot signal to obtain SINR for each RB. A feedback information generation unit converts SINR of each RB into a corresponding CQI. Moreover, as the transmission band width increases, the number X of the quantization bits is decreased when quantizing the average CQI, thereby generating feedback information. A radio transmission unit transmits feedback information from an antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.