Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissions
First Claim
1. A communication system comprising:
- a high altitude communication device generating a plurality of user link beams having a first communication characteristic and a feeder link beam having the first communication characteristic;
a gateway terminal receiving the feeder link beam;
a user terminal receiving at least one of said user link beams;
wherein said plurality of user link beams comprises a first user link beam within a first cell and a first isolation zone outside said first cell, and a second user link beam having a second isolation zone overlapping said first isolation zone, said feeder link positioned within said first isolation zone and said second isolation zone.
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Abstract
A communication system has a high altitude communication device generating a plurality of user link beams having a first communication characteristic and a feeder link having a first communication characteristic. A gateway terminal receives the user link beam. A user terminal receives at least one of the user link beams. The plurality of user link beams comprises a first user link beam within a first cell and a first isolation zone outside the first cell. The plurality of user link beams comprises a second user link beam having the first communication characteristic and positioned within a second cell and a second isolation zone outside said second cell. The second isolation zone overlaps the first isolation zone. The feeder link is positioned within the first isolation zone and the second isolation zone. The feeder link has the first communication characteristic.
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Citations
21 Claims
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1. A communication system comprising:
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a high altitude communication device generating a plurality of user link beams having a first communication characteristic and a feeder link beam having the first communication characteristic;
a gateway terminal receiving the feeder link beam;
a user terminal receiving at least one of said user link beams;
wherein said plurality of user link beams comprises a first user link beam within a first cell and a first isolation zone outside said first cell, and a second user link beam having a second isolation zone overlapping said first isolation zone, said feeder link positioned within said first isolation zone and said second isolation zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a communication system comprises the steps of:
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generating a first user link beam having a first communication characteristic and a first isolation zone;
generating a second user link beam having the first communication characteristic and a second isolation zone at least partially overlapping said first isolation zone; and
,generating a first feeder link beam having said first communication characteristic and positioned within said first isolation zone and said second isolation zone. - View Dependent Claims (10, 11, 12)
generating a second feeder link beam having the first communication characteristic and positioned within the second and third isolation zone.
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11. A method as recited in claim 9 wherein the first communication characteristic comprises a code.
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12. A method as recited in claim 9 wherein the first communication characteristic comprises a frequency.
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13. A communication system having a first cell, a second cell and a third cell comprising:
a high altitude communication device generating a first user link beam having a first communication characteristic having a first center portion located within first cell and a first isolation zone located within the second cell, a second user link beam having the first communication characteristic having a second center portion located within a third cell and a second isolation zone located within the second cell and a first feeder link beam having the first communication characteristic located within the second cell. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
Specification