Method and apparatus for communication using massive-beam MIMO phased array
US11245442B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2021 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Mar 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a long-distance (e.g. satellite-to-ground) wireless communication method and apparatus. Two-dimensional antenna arrays are operated pairwise to produce interleaved groupings of beams which are elongated in one direction and aligned in another direction. These groupings of beams can be provided using fixed analog beamforming arrays. An active beamformer can be used to form beams which are directed within each grouping of beams. Different ports of the analog beamforming arrays can be operated to produce beams in different groupings, or different bi-sector beams within a same grouping. A simplified parametric-based channel state information precoding operation using direction of arrival for MIMO processing is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.