Method and apparatus for selecting pre-coding vectors
US8300727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for selecting pre-coding vectors in a base station of a multi-user MIMO system, comprising: transmitting a plurality of pilot signals without being precoded to the plurality of terminals; receiving a plurality of feedback signals from the terminals, wherein at least one feedback signal includes a plurality of recommended pre-coding vector information and a plurality of channel status information, and each of the channel status information corresponds to a recommended pre-coding vector information; generate a pre-coding codebook based on the plurality feedback signals, wherein at least one pre-coding vector in the pre-coding codebook is determined based on a correlation coefficient between at least two recommended pre-coding vectors; and performing a transmission operation using the pre-coding codebook.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.