Codebook based signal transmission/reception method in multi-antenna wireless communication system and apparatus therefor
US10491275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0634
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for transmitting/receiving signals by a UE based on a codebook in a multi-antenna wireless communication system according to an aspect of the present invention includes: receiving a channel state information reference signal (CSI-RS) from a base station through multiple antenna ports; and reporting channel state information to the base station, wherein the channel state information includes a precoding matrix indicator (PMI) for indicating a specific code vector among a plurality of code vectors included in the codebook, wherein elements included in each code vector included in the codebook are selected from elements of a predetermined circular vector using an azimuth angle of the UE with respect to the base station and an oversampling factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.