Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1997-06-02
2000-09-26
Trost, William G.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455427, 370316, H04Q 720
Patent
active
061252611
ABSTRACT:
A satellite-based communications system operating at high data rates includes a plurality of communications satellites each having an uplink and a downlink antenna for receiving and transmitting a plurality of spot beams corresponding to a plurality of coverage areas at a plurality of frequencies. The system further includes a plurality of dedicated communications links between a source location in one of the plurality of coverage areas and a destination location in another one of the plurality of coverage areas wherein the plurality of dedicated communications links are each assigned an exclusive time interval for transmitting and receiving communications signals to and from each of the plurality of satellites. The plurality of satellites each have an uplink and downlink antenna beam switch coupled to the uplink and downlink antennas for selecting a reconfigurable subset of the plurality of spot beams based on the time interval. The plurality of satellites each further have a primary communication payload for receiving and transmitting signals at a primary range of frequencies in each of the plurality of spot beams and a secondary communication payload for receiving and transmitting signals at a secondary range of frequencies in each of the plurality of spot beams upon occurring a drop-out of the primary communication payload. The system further includes a plurality of user terminals having a primary communication antenna for transmitting and receiving signals to and from each of the plurality of satellites at the primary range of frequencies.
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Anselmo Carl S.
Houston Sam W.
Sullivan Daniel P.
Duraiswamy Vijayalakshmi D.
Hughes Electronics Corporation
Lortz Bradley K.
Sales Michael W.
Trost William G.
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