Mode switching method for reducing training overheads in reconfigurable intelligent surface (RIS)-assisted communication system
US11848726B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 21, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Jul 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a mode switching method for reducing training overheads in a reconfigurable intelligent surface (RIS)-assisted communication system. The system includes one single-antenna base station, one single-antenna user terminal, and an RIS including N reflection elements, the single-antenna user terminal sends data to the single-antenna base station, however, when a direct link of a user-base station is blocked by a blockage, the data can be sent to the single-antenna base station only via the RIS; the RIS determines a proper reflection solution by using a controller, and dynamically adjusts a phase shift thereof to improve an achievable data rate of the system; and necessary information for phase shift adjustment can be obtained at the base station by uplink training, and transmitted to the RIS controller by using a control link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.