Combined satellite and terrestrial communication system for terminals located on a vehicle such as an aircraft using a common set of frequencies
First Claim
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1. A combined satellite and terrestrial communication system, comprising:
- at least one satellite earth station, for communication via a satellite with a plurality of terminals using one or more satellite links; and
a plurality of terrestrial stations, for communication with the plurality of terminals using one or more terrestrial links;
wherein the satellite links include a satellite uplink, for transmissions from the terminals to the satellite, and the terrestrial links include a terrestrial uplink, for transmissions from the terminals to the terrestrial stations, wherein at least some of frequencies of the satellite uplink coincide with, and are used simultaneously with, the frequencies of the terrestrial uplink,wherein the terminals are each provided in or on a respective vehicle having at least one satellite antenna, for communication with the satellite, and at least one terrestrial antenna, for communication with the terrestrial stations, such that interference is attenuated between the satellite and terrestrial antennas such that interference between the satellite uplink and the terrestrial uplink is suppressed, andwherein at least part of the body of the respective vehicle provides interference isolation between the satellite antenna and the terrestrial antenna.
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Abstract
A combined satellite and terrestrial communication system may include at least one satellite earth station, for communication via a satellite with a plurality of terminals using one or more satellite links; a plurality of terrestrial stations, for communication with the plurality of terminals using one or more terrestrial links; wherein the satellite links overlap or coincide in frequency with the terrestrial links; and each of the terminals includes means for inhibiting interference between the satellite links and the terrestrial links.
25 Citations
20 Claims
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1. A combined satellite and terrestrial communication system, comprising:
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at least one satellite earth station, for communication via a satellite with a plurality of terminals using one or more satellite links; and a plurality of terrestrial stations, for communication with the plurality of terminals using one or more terrestrial links;
wherein the satellite links include a satellite uplink, for transmissions from the terminals to the satellite, and the terrestrial links include a terrestrial uplink, for transmissions from the terminals to the terrestrial stations, wherein at least some of frequencies of the satellite uplink coincide with, and are used simultaneously with, the frequencies of the terrestrial uplink,wherein the terminals are each provided in or on a respective vehicle having at least one satellite antenna, for communication with the satellite, and at least one terrestrial antenna, for communication with the terrestrial stations, such that interference is attenuated between the satellite and terrestrial antennas such that interference between the satellite uplink and the terrestrial uplink is suppressed, and wherein at least part of the body of the respective vehicle provides interference isolation between the satellite antenna and the terrestrial antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A combined satellite and terrestrial communication system, comprising:
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at least one satellite earth station, for communication via a satellite with a plurality of terminals using one or more satellite links; and a plurality of terrestrial stations, for communication with the plurality of terminals using one or more terrestrial links, wherein the satellite links include a satellite downlink, for transmissions to the terminals from the satellite, and the terrestrial links include a terrestrial downlink, for transmissions to the terminals from the terrestrial stations, wherein at least some of the frequencies of the satellite downlink coincide with, and are used simultaneously with, the frequencies of the terrestrial downlink, wherein the terminals are each provided in or on a respective vehicle having at least one satellite antenna, for communication with the satellite, and at least one terrestrial antenna, for communication with the terrestrial stations, such that interference is attenuated between the satellite and terrestrial antennas such that interference between the satellite uplink and the terrestrial uplink is suppressed, and wherein at least part of the body of the respective vehicle provides interference isolation between the satellite antenna and the terrestrial antenna. - View Dependent Claims (19, 20)
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Specification