Downlink switching mechanism for a satellite
First Claim
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1. A satellite for routing signals on 0 to n channels to any one of M downlink beams, said satellite comprising:
- n first-stage switches each corresponding to one of the 0 to n channels;
M multiplexing devices each to combine n/2 channels into one output channel;
M second-stage switches to receive outputs from said M multiplexing devices; and
M downlink antenna ports coupled to said m second-stage switches;
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Abstract
A satellite is provided that routes signals on 0 to n channels to any one of M downlink beams. The satellite may include n first-stage switches each corresponding to one of the 0 to n channels, M multiplexing devices each to combine n/2 channels into one output channel, M second-stage switches to receive outputs from said M multiplexing devices and M downlink antenna ports coupled to the M second-stage switches.
19 Citations
23 Claims
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1. A satellite for routing signals on 0 to n channels to any one of M downlink beams, said satellite comprising:
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n first-stage switches each corresponding to one of the 0 to n channels;
M multiplexing devices each to combine n/2 channels into one output channel;
M second-stage switches to receive outputs from said M multiplexing devices; and
M downlink antenna ports coupled to said m second-stage switches;
- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A satellite mechanism for routing 0 to n signals to any one of M downlink beams, said satellite mechanism comprising:
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a plurality of first switching devices each to route an input signal to at least one of two outputs;
a plurality of multiplexing devices to receive inputs from said plurality of first switching devices and to provide a plurality of output signals; and
a plurality of second switching devices each corresponding to one of said plurality of multiplexing devices and provided to receive said plurality of output signals, each of said plurality of second switching devices to route a received signal to one of M antenna ports. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A switching mechanism for routing signals from up to n channels to any one of M downlink beams, said switching mechanism comprising:
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means for receiving a plurality of uplink signals each corresponding to one of n channels; and
means for directing signals corresponding to each of said uplink signals to one of M downlink antenna ports. - View Dependent Claims (18, 19)
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20. A method of routing signals on a satellite, said method comprising:
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receiving signals on 0 to n channels; and
routing said signals to any one of M downlink antenna ports. - View Dependent Claims (21)
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22. A method of routing n signals to any one of M downlink antenna ports on a satellite, said method comprising:
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receiving said n signals each corresponding to a different channel; and
directing each of said signals to one of said M downlink antenna ports using n first-stage switches, M multiplexing devices and M second-stage switches. - View Dependent Claims (23)
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Specification