Closed-loop pointing system for wireless communication with spot beams and wide-area beams
US7130578B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2003 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication system includes platforms that generate spot beams and wide-area beams. The system includes a network operations controller that receives signals from user terminals. User terminals determine the signal strengths of the spot beams and the wide-area beams and a ratio may therefore be calculated between the spot beam and the wide-area beams. Based upon the ratio of the spot beam strength and the wide-area beam strength, the network operations controller may adjust the orientation of the platforms relative to the earth to correct for pointing errors and, the network operation controller may compensate as is best possible depending on the type of antenna, a correction for distortion in the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.