Detection and mitigation of antenna element failures
US10819448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In order to address the potential for antenna failure in large antenna arrays, a method, a computer-readable medium, and an apparatus are provided for wireless communication, e.g., at a base station or CPE. The apparatus detects a failure of a plurality of antenna elements in an antenna array associated with an antenna module in an antenna array comprising a plurality of antenna modules. The apparatus then applies a mitigation procedure in response to detecting the failure, e.g., when a fraction of antenna elements for which a failure is detected meets a threshold. The mitigation procedure may include any of switching to a different codebook, increasing DL or UL transmission power, or a VGA. The failure may be detected by transmitting pilot signals using sets of antenna elements of the antenna array and using signal strength measurements to detect antenna element failures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.