Precoding vector indication method, precoding vector determining method, and communications apparatus
US12284018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Nov 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1614
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Example precoding vector indication methods, precoding vector determining methods, and communications apparatus to reduce feedback overheads are described. One example method includes generating and sending a channel state information (CSI) report by a terminal device. A network device determines a precoding vector of one or more frequency domain units based on the CSI report. The CSI report is used to indicate M space-frequency units and a weighting coefficient of a part or all of the M space-frequency units, each of the M space-frequency units corresponds to one beam vector and one frequency domain vector, and a weighted sum of the part or all of the M space-frequency units is used to determine the precoding vector of the one or more frequency domain units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.