Patent attributes
A method for determining a frequency usage pattern of one or more satellites includes receiving, at data processing hardware, identifications of one or more satellite communication frequencies used by a satellite at corresponding locations of the satellite along a non-geostationary satellite orbit. The method includes determining, by the data processing hardware, a pattern of frequency usage by the satellite at the corresponding locations of the satellite. The method also includes instructing, by the data processing hardware, communication between a high altitude platform and a ground terminal using an identified satellite communication frequency during a non-interfering period of time based on the pattern of frequency usage by the satellite. The high altitude platform has an altitude lower than the satellite.