Adaptive feedback for multi-cell cooperative communication and an adaptive transmission mode determining method and device
US8971272B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2011 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Feb 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0639
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present description relates to a method of using a terminal to adaptively feed back channel information relating to multi-cell cooperative communication includes: measuring an average signal-to-noise ratio of a virtual multi-antenna channel between a terminal and at least one cell to transmit same to a base station; receiving, from a base station, a number of allowable feedback bits determined on the basis of the average signal-to-noise ratio and cooperative communication information; selecting a codebook from a plurality of predetermined codebooks on the basis of the number of allowable feedback bits and the cooperative communication information; and quantizing channel information on a virtual multi-antenna channel using the selected codebook, and transmitting feedback information including the quantized channel information to a base station. The codebook may be selected to transmit the feedback information using the entire number of allowable feedback bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.