Methods and apparatus for beam search and tracking in mm-wave access systems
US9686695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2014 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Sep 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus, and a computer program product for operating a user equipment (UE) are provided. The apparatus determines a first coarse set of beamforming paths between the UE and a first millimeter wave base station (mmW-BS), receives on a first set of narrow beamforming paths close to a first beamforming path within the first coarse set of beamforming paths, requests the first mmW-BS to transmit on a second set of narrow beamforming paths close to a second beamforming path within the first coarse set of beamforming paths when a signal quality of the first beamforming path and the first set of narrow beamforming paths are less than a first threshold, and communicates through one of the second beamforming path or a path within the second set of narrow beamforming paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.