Codebook based channel information feedback method, device and system
US9490888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2015 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Mar 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.