Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor
US11271625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2636
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method for transmitting and receiving channel state information in wireless communication system and an apparatus therefor. Specifically, a method for transmitting, by a user equipment (UE), Channel State Information (CSI) in a wireless communication system may include: receiving, from a base station, a channel state information reference signal (CSI-RS) through multiple antenna ports; and reporting, to the base station, CSI, in which the CSI may include selection information indicating a plurality of codewords used for generating a precoding matrix in a codebook for reporting the CSI, and a power coefficient, a phase offset, and a phase shift value applied to each of the plurality of codewords in terms of a configured bandwidth, and the precoding matrix may be generated in units of subbands within the configured bandwidth based on a linear combination of the power coefficient, the phase offset, and the phase change value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.