Techniques for estimating misalignment between antenna arrays
US12068814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2023 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/063
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit one or more reference signals to a second wireless device using a first antenna array at the first wireless device and in accordance with a first precoder matrix. The first wireless device may receive, from the second wireless device based on the one or more reference signals, a feedback message indicating an estimated rotational misalignment, an estimated spatial misalignment, or both, between the first antenna array at the first wireless device and a second antenna array at the second wireless device. The first wireless device may then transmit a message to the second wireless device in accordance with a second precoder matrix that is modified relative to the first precoder matrix based at least in part on the estimated rotational misalignment, the estimated spatial misalignment, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.