Optical satellite feeder links
First Claim
Patent Images
1. A cellular communication system, comprising:
- a plurality of ground-based base stations;
a plurality of mobile stations;
at least one orbiting satellite for relaying information signals between said base stations and said mobile stations; and
a plurality of feederlinks between said base stations and said satellites for simultaneously transmitting said information signals and power from the ground stations to said satellite.
1 Assignment
0 Petitions
Accused Products
Abstract
A cellular communications satellite system is disclosed which comprises a plurality of ground-based base stations, mobile stations, and at least one orbiting satellite for relaying signals between the base stations and mobile stations. A Plurality of feederlinks are used between the base stations and the satellite for transmitting signals and power from the ground stations to the satellite.
43 Citations
12 Claims
-
1. A cellular communication system, comprising:
-
a plurality of ground-based base stations; a plurality of mobile stations; at least one orbiting satellite for relaying information signals between said base stations and said mobile stations; and a plurality of feederlinks between said base stations and said satellites for simultaneously transmitting said information signals and power from the ground stations to said satellite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for transmitting information from ground-based base stations to an orbiting satellite in a cellular communication system, comprising the steps of:
-
processing information signals intended for at least one mobile station to form drive signals for satellite-borne phased array elements; time multiplexing said drive signals; amplitude or frequency-shift keying said time multiplexed drive signals onto laser beam feederlink signals which are transmitted to said satellite; demodulating said feederlink signals received at said satellite to reconstruct said time multiplexed drive signals; and demultiplexing said drive signals at said satellite using a plurality of distributed demultiplexing circuits.
-
-
12. A method for transmitting information from ground-based base stations to an orbiting satellite in a cellular communication system, comprising the steps of:
-
processing information signals intended for at least one mobile station to form drive signals for satellite-borne phased array elements; time multiplexing said drive signals; modulating said time multiplexed drive signals onto microwave feederlink signals which are transmitted to said satellite; demodulating said feederlink signals received at said satellite to reconstruct said time multiplexed drive signals; and demultiplexing said drive signals at said satellite using a plurality of distributed demultiplexing circuits.
-
Specification