Satellite System Optimization
2 Assignments
0 Petitions
Accused Products
Abstract
A satellite system for broadband communication with a plurality of remote locations in a geography is described. The satellite system utilizes a plurality of service spot beams distributed over the geography in a fixed pattern and a plurality of return spot beams distributed over the geography, wherein the service spot beams and the return spot beams use overlapping frequencies.
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Citations
24 Claims
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1-12. -12. (canceled)
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13. A satellite for communication in a plurality of remote locations in a geography, the satellite system comprising:
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a downstream translator configured to produce a plurality of service spot beam signals which are each modulated with a single carrier and define a service coverage area distributed over the geography, the plurality of service spot beam signals using one of a plurality downlink frequency channels; and an upstream translator configured to produce a plurality of feeder spot beam signals, one of the plurality of feeder spot beam signals and one of the plurality of service spot beam signals using a common channel of the plurality of downlink frequency channels, the plurality of feeder spot beam signals corresponding to a plurality of feeder coverage areas distributed over the geography. - View Dependent Claims (14, 15, 16, 17)
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18. A system for communication in a plurality of remote locations, the system comprising:
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a satellite configured to emit a plurality of downlink service beams that collectively cover a predetermined geographic region in a fixed pattern, and to emit a plurality of downlink feeder beams distributed over the predetermined geographic region, the downlink service beams and the downlink feeder beams using at least one common frequency channel; and a gateway configured to modulate within a single carrier an uplink feeder beam used by the satellite to produce the downlink service beams. - View Dependent Claims (19)
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20. A method for communicating data in a satellite system, the method comprising:
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receiving at a geosynchronous satellite a plurality of uplink service beams, each using a common uplink frequency channel and modulated with a single carrier, each of the plurality of uplink service beams being associated with a different service beam coverage area which together form a combined service beam coverage area; transmitting a plurality of downlink service beams using a common downlink frequency channel; receiving an uplink feeder beam in the common uplink frequency channel from a gateway located within a feeder beam coverage area which is at least partially non-overlapping with the combined service beam coverage area and, in response to receiving the uplink feeder beam, forming the plurality of downlink service beams; and forming a downlink feeder beam responsive to the plurality of uplink service beams and transmitting the downlink feeder beam in the common downlink frequency channel. - View Dependent Claims (21, 22, 23)
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24. A satellite for communicating data, the satellite comprising:
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means for receiving at a geosynchronous satellite a plurality of uplink service beams, each using a common uplink frequency channel and modulated with a single carrier, each of the plurality of uplink service beams being associated with a different service beam coverage area which together form a combined service beam coverage area; means for transmitting a plurality of downlink service beams using a common downlink frequency channel; means for receiving an uplink feeder beam in the common uplink frequency channel from a gateway located within a feeder beam coverage area which is at least partially non-overlapping with the combined service beam coverage area and, in response to receiving the uplink feeder beam, forming the plurality of downlink service beams; and means for forming a downlink feeder beam responsive to the plurality of uplink service beams and transmitting the downlink feeder beam in the common downlink frequency channel.
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Specification