Method and device for channel state information feedback
US11522587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Aug 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method in a terminal device for Channel State Information, CSI, feedback. The method includes: determining, for each of a plurality of candidate ranks, a power offset between a CSI Reference Signal, CSI-RS, and a downlink data transmission; calculating, for each of the plurality of candidate ranks, a Signal-to-Noise Ratio, SNR, of the downlink data transmission based on the power offset determined for the corresponding candidate rank; selecting a rank from the plurality of candidate ranks based on the respective SNRs calculated for the plurality of candidate ranks; and transmitting a Rank Indicator, RI, indicating the selected rank to a network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.