Method and communication device for controlling beam-forming tracking
US9900133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2015 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method in a communication device for controlling beam-forming (BF) tracking is disclosed. The method comprises switching the communication device from a coarse BF tracking state to a non-BF tracking state when a first timer expires. The communication device transmits pilot signals for BF tracking, feedback information for BF tracking or both the pilot signals and the feedback information more frequently in the coarse BF tracking state than in the non-BF tracking state. Additionally or alternatively, the method comprises switching the communication device from a fine BF tracking state to a coarse BF tracking state or a non-BF tracking state when a second timer expires. The communication device transmits pilot signals for BF tracking, feedback information for BF tracking or both the pilot signals and the feedback information more frequently in the fine BF tracking state than in the coarse BF tracking state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.