Methods of ground based beamforming and on-board frequency translation and related systems
First Claim
1. A method of operating a communications system including a satellite and a satellite gateway, the method comprising:
- providing a feeder link between the satellite and the satellite gateway, wherein the feeder link is provided over a feeder link frequency band for communication of information between the satellite gateway and the satellite;
providing a service link between the satellite and at least one radioterminal in a coverage area of the satellite, wherein the service link is provided over a service link frequency band and wherein the feeder link and service link frequency bands are different; and
linearly frequency translating a frequency segment of the feeder link from the feeder link frequency band to the service link frequency band to provide a frequency segment of the service link.
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Accused Products
Abstract
Methods are provided to operate a communications system including a satellite and a satellite gateway. In particular, a feeder link may be provided between the satellite and the satellite gateway over a feeder link frequency band for communication of information between the satellite gateway and the satellite. A service link may be provided between the satellite and at least one radioterminal in a coverage area of the satellite over a service link frequency band. Moreover, the feeder link and service link frequency bands may be different. In addition, a frequency segment of the feeder link may be linearly translated from the feeder link frequency band to the service link frequency band to provide a frequency segment of the service link. Related satellites are also discussed.
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Citations
44 Claims
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1. A method of operating a communications system including a satellite and a satellite gateway, the method comprising:
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providing a feeder link between the satellite and the satellite gateway, wherein the feeder link is provided over a feeder link frequency band for communication of information between the satellite gateway and the satellite;
providing a service link between the satellite and at least one radioterminal in a coverage area of the satellite, wherein the service link is provided over a service link frequency band and wherein the feeder link and service link frequency bands are different; and
linearly frequency translating a frequency segment of the feeder link from the feeder link frequency band to the service link frequency band to provide a frequency segment of the service link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a communications system including a satellite and a satellite gateway, the method comprising:
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providing a feeder link between the satellite and the satellite gateway, wherein the feeder link is provided over a feeder link frequency band for communication of information between the satellite gateway and the satellite;
providing a service link between the satellite and at least one radioterminal in a coverage area of the satellite, wherein the service link is provided over a service link frequency band and wherein the feeder link and service link frequency bands are different; and
linearly frequency translating a frequency segment of the service link from the service link frequency band to the feeder link frequency band to provide a frequency segment of the feeder link. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A satellite for relaying communications between a satellite gateway and at least one radioterminal in a coverage area of the satellite, the satellite comprising;
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a feeder link receiver configured to receive information from the satellite gateway using a feeder link provided over a feeder link frequency band;
a service link transmitter configured to transmit information to the at least one radioterminal in the coverage area using a service link provided over a service link frequency band, wherein the service link frequency band and the feeder link frequency band are different; and
a frequency translator coupled between the feeder link receiver and the service link transmitter, wherein the frequency translator is configured to provide linear frequency translation of a frequency segment of the feeder link from the feeder link frequency band to the service link frequency band to provide a frequency segment of the service link. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A satellite for relaying communications between a satellite gateway and at least one radioterminal in a coverage area of the satellite, the satellite comprising:
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a service link receiver configured to receive information from the at least one radioterminal in the coverage area using a service link provided over a service link frequency band, a feeder link transmitter configured to transmit information to the satellite gateway using a feeder link provided over a feeder link frequency band, wherein the service link frequency band and the feeder link frequency band are different; and
a frequency translator coupled between the service link receiver and the feeder link transmitter, wherein the frequency translator is configured to provide linear frequency translation of a frequency segment of the service link from the service link frequency band to the feeder link frequency band to provide a frequency segment of the feeder link. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification