Method and base station for CSI process configuration and method and user equipment for CSI feedback
US10044477B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/325
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method in a base station for Channel State Information (CSI) process configuration and an associated base station. The method comprises: setting CSI process information for a User Equipment (UE) supporting three dimensional (3D) Multiple Input Multiple Output (MIMO), the CSI process information including at least an index of a CSI Reference Signal Resource (CSI-RS-R) for a vertical direction of a 3D MIMO antenna array; and transmitting the set CSI process information to the UE. Also disclosed are a method in a UE for CSI feedback and an associated UE. The method comprises: receiving CSI process information from a base station, the CSI process information including at least an index of a CSI Reference Signal Resource (CSI-RS-R) for a vertical direction of a three dimensional (3D) Multiple Input Multiple Output (MIMO) antenna array; measuring a CSI Reference Signal (CSI-RS) transmitted from the base station over the CSI-RS-R configured by the base station; and feeding CSI information back to the base station based on a measurement result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.