SATELLITE SYSTEM WITH ROLLING WAVE HANDOVERS
First Claim
Patent Images
1. A satellite system, comprising:
- a plurality of satellites adapted to be in a common orbit and to implement handovers of beams between adjacent satellites in sequence for pairs of adjacent satellites in a single direction around the orbit.
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Abstract
A constellation of non-geosynchronous satellites are in a common orbit. Each time one of the satellites is at a trigger location, a new rolling wave of handovers is started that includes performing handovers of a group of dependent spot beams between adjacent satellites in sequence for pairs of adjacent satellites in a single direction around the orbit.
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Citations
21 Claims
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1. A satellite system, comprising:
a plurality of satellites adapted to be in a common orbit and to implement handovers of beams between adjacent satellites in sequence for pairs of adjacent satellites in a single direction around the orbit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a satellite system, comprising:
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orbiting a plurality of non-geosynchronous satellites in a common orbit; and each time one of the satellites is at a trigger location, starting a new rolling wave of handovers that includes performing handovers of a group of dependent spot beams between adjacent satellites in sequence for pairs of adjacent satellites in a single direction around the orbit. - View Dependent Claims (11, 12, 13, 14)
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15. A satellite system, comprising:
a non-geosynchronous satellite configured to concurrently handover all of its beams of a group of dependent beams to a trailing adjacent satellite and subsequently reconfigure pointing of the group of dependent beams, the non-geosynchronous satellite is configured to concurrently receive handover of beams for the group of dependent beams from a leading adjacent satellite after reconfiguring the pointing of the group of dependent beams. - View Dependent Claims (16, 17, 18)
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19. A satellite system, comprising:
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a first satellite configured to travel in an orbit that is divided into zones with gaps between the zones, the first satellite is configured to travel in a gap between zone A and zone A+1, the first satellite is configured to point all of its beams of a group of beams at ground locations associated with zone A+1; and a second satellite configured to travel in the orbit, the first satellite is configured to move into zone A+1 while the second satellite is in zone A+1, the second satellite is configured to concurrently hand over all beams of its group of beams to the first satellite while the first satellite and the second satellite are in zone A+1, the second satellite is configured to move out of zone A+1 into a gap between zone A+1 and zone A+2, the first satellite is configured to update pointing of its beams of the group of beams while the first satellite traverses zone A+1 and maintains communication with ground terminals using its beams of the group. - View Dependent Claims (20)
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21. A method of operating a satellite system that includes a plurality of satellites including a first satellite and a second satellite in a common orbit that is divided into zones with gaps between the zones, the method comprising:
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the first satellite traveling in a gap between zone A and zone A+1; the first satellite pointing all of its beams of a group of beams at ground locations associated with zone A+1 while traveling in the gap between zone A and zone A+1; the first satellite moving into zone A+1 while the second satellite is in zone A+1; the second satellite concurrently handing over all beams of the group of beams to the first satellite while the first satellite and the second satellite are in zone A+1; the second satellite moving out of zone A+1 into a gap between zone A+1 and zone A+2; and the first satellite updating pointing of its beams of the group of beams while the first satellite traverses zone A+1 and maintains communication with ground terminals using its beams of the group.
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Specification