Method and apparatus for distributing information in an assisted-SPS system
First Claim
1. A method of distributing information to a mobile receiver, comprising;
- receiving information representing at least one of ionosphere information, clock information, and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a second satellite network;
combining at least a portion of the received information with assistance data to form augmented assistance data; and
coupling the augmented assistance data to a mobile receiver, where the mobile receiver uses the augmented assistance data to process satellite signals from at least one satellite in the second satellite network.
5 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for distributing information in an assisted-SPS system. The method and apparatus receive information comprising at least one of ionospheric information, clock information, and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a second satellite. The received information is combined with assistance data to form augmented assistance data. The augmented assistance data is coupled to a mobile receiver, where the mobile receiver uses the augmented assistance data to process satellite signals from at least one satellite in the second satellite system. Alternatively, the received information can be used by a server to improve the accuracy of a position computation for the mobile receiver.
45 Citations
22 Claims
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1. A method of distributing information to a mobile receiver, comprising;
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receiving information representing at least one of ionosphere information, clock information, and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a second satellite network;
combining at least a portion of the received information with assistance data to form augmented assistance data; and
coupling the augmented assistance data to a mobile receiver, where the mobile receiver uses the augmented assistance data to process satellite signals from at least one satellite in the second satellite network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of generating assistance data for an assisted-SPS system comprising:
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receiving information representing at least one of ionosphere information, clock information, and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a satellite positioning system (SPS) satellite network;
combining the received information with assistance data to form augmented assistance data that can be used to process satellite signals transmitted by at least one SPS satellite. - View Dependent Claims (9, 10, 12, 13, 14)
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11. The method of claim 11 wherein the SPS is part of at least one of a Global Positioning System, GLONASS and Galileo.
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15. Apparatus for providing atmospheric information to a mobile receiver comprising:
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a receiver adapted to receive information representing at least one of ionosphere information, clock information, and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a second satellite network;
a server, coupled to the receiver, for combining at least a portion of the received information with assistance data to form augmented assistance data that can be used by a mobile device to process satellite signals from at least one satellite in the second satellite network. - View Dependent Claims (16, 17, 18)
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19. A method of improving a position computation accurately comprising:
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receiving information at an A-GPS server representing at least one of ionosphere information, clock information and satellite integrity information from a first satellite in a first satellite network, where the received information pertains to at least one satellite in a second satellite network;
computing within a mobile receiver at least one pseudorange measurement, where the pseudorange measurement represents a relative distance between a mobile receiver and at least one satellite in the second satellite network;
sending the at least one pseudorange measurement to the A-GPS server;
correcting the at least one pseudorange measurement using the received information; and
computing a position of the mobile receiver using the corrected at least one pseudorange. - View Dependent Claims (20, 21, 22)
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Specification