Method and apparatus for reporting channel state information in wireless communication system
US9432099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jun 24, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method and an apparatus for reporting channel state information. According to one embodiment of the present invention, receiving a channel state information-reference signal (CSI-RS) based on CSI-RS setting information that is provided by a base station; and reporting to the base station the CSI generated by using the CSI-RS, wherein the CSI includes precoding information selected from a specific codebook, wherein elements of the specific codebook are configured based on a precoding vector W, wherein the precoding vector W isW1 is a precoding vector applied to a first domain antenna group having a 2D antenna structure, W2 is a precoding vector applied to a second domain antenna group having the 2D antenna structure, and wherein “a” can be a value representing phase difference between the first domain antenna group and the second domain antenna group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.