Technique for sharing radio frequency spectrum in multiple satel

Details Technique for sharing radio frequency spectrum in multiple satel Technique for sharing radio frequency spectrum in multiple satel

1997-08-22

1999-11-30

Chin, Wellington

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455427, 455450, 455 63, H04Q 720

Patent

active

059958413

ABSTRACT:
A technique for sharing radio frequency spectrum in a multiple communication satellite system with a plurality of satellites in each of a plurality of non-geostationary (non-GSO) Earth orbits. A first satellite communication system uses a plurality of predefined non-GSO Earth orbits and a second satellite communication system uses a plurality of predefined orbits that are interleaved with the orbital planes of the first satellite communication system. In this manner, it is possible to achieve satisfactory discrimination between satellites and Earth-based stations. With near polar orbits, the topocentric separation between satellites decreases as the latitude of the Earth-based stations increases due to the convergence of orbital planes near the poles. To compensate for the decreased topocentric separation, the system utilizes one or more mitigation techniques to select one of a plurality of possible satellites to communicate with the Earth-based station in order to effectively increase topocentric separation.

REFERENCES:
patent: 4189675 (1980-02-01), Reilly et al.
patent: 5268694 (1993-12-01), Jan et al.
patent: 5448621 (1995-09-01), Knudsen
patent: 5551058 (1996-08-01), Hutcheson et al.
patent: 5625867 (1997-04-01), Rouffet et al.
patent: 5655217 (1997-08-01), Lemson
patent: 5758261 (1998-05-01), Wiedeman
patent: 5805633 (1998-09-01), Uddenfeldt

Affiliated with

Also associated with

Rating

Technique for sharing radio frequency spectrum in multiple satel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Technique for sharing radio frequency spectrum in multiple satel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Technique for sharing radio frequency spectrum in multiple satel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1686334