System and method for communicating via a satellite in an inclined geosynchronous orbit
US10587332B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 27, 2014 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Jul 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/34
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hub terminal and remote client communicate via a target satellite in an inclined geosynchronous orbit. As the target satellite ascends or descends away from the geostationary arc, the signal strength of the uplink channel is increased without increasing the level of interference with adjacent geostationary satellites. The increased angular separation from adjacent satellites also decreases downlink interference. The resulting increase in signal to interference ratio permits adjustment of the modulation and coding parameters to increase spectral efficiency. The antenna gain pattern is modeled based on antenna characteristics and the model may be supplemented with measurements of a signal relayed by adjacent satellites. The method permits intermittent communication from locations where the geostationary arc is blocked or using disadvantaged antennas that would be impractical for use with geostationary satellites. In some circumstances, it is desirable to deliberately mis-steer the antenna slightly away from the target satellite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.