Beam failure recovery
US11082286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0833
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems, methods and instrumentalities are disclosed for WTRU-initiated beam recovery including beam switching and/or beam sweeping. A WTRU may be configured to detect a beam failure condition, identify a candidate beam for resolving the beam failure condition, and send a beam failure recovery request to a network entity. The WTRU may include the candidate beam in the beam failure recovery request and may receive a response from the network entity regarding the request and/or a solution for the beam failure condition. WTRU-initiated beam recovery may be used to resolve radio link failures and improve system performance by avoiding the necessity to perform an acquisition procedure. Additionally, beam sweeping may be performed at a sub-time unit level to provide a fast sweeping mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.