Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1998-02-23
2000-07-11
Hunter, Daniel S.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455 121, 455427, H04Q 720
Patent
active
060885726
ABSTRACT:
Multiple, different, independent constellations (10, 20) of satellites (2, 21-23) share a portion of a common frequency spectrum such as a single carrier frequency. The satellites' antennas (11) may be either multi-beam or omni-directional, while those of earth stations (13, 14) are directional. When interference occurs between communications of a satellite (31) of a first constellation (10) and a satellite (41) of a second constellation (20), any of several interference-mitigation options may be employed, such as the first satellite (31) handing off communications to a second satellite (32) of the same constellation (10), or temporarily suspending communications. The remedial action may occur in response to either predicted or detected interference.
REFERENCES:
patent: 5641134 (1997-06-01), Vatt
patent: 5697056 (1997-12-01), Tayloe
patent: 5774787 (1998-06-01), Leopold et al.
patent: 5839053 (1998-11-01), Bosch et al.
Diekelman Dennis Paul
Major John E.
Vatt Gregory Barton
Hunter Daniel S.
Klekotka James E.
Limon Jeff D.
Motorola Inc.
Whitney Sherry J.
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