SATELLITE AIDED LOCATION TRACKING AND DATA SERVICES USING GEOSYNCHRONOUS AND LOW EARTH ORBIT SATELLITES WITH GLOBAL LOCATING SYSTEM
First Claim
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1. A mobile terminal, comprising:
- a first receiver for receiving signals from a plurality of global positioning system satellites;
a second receiver for receiving signals from a geosynchronous satellite; and
a transmitter module that includes a geosynchronous satellite transmitter and a low earth orbit satellite transmitter, wherein the mobile terminal selectively transmits, under control of a processor, measurements taken from said received global positioning system satellite signals to a centralized location via one of a geosynchronous satellite and a low earth orbit satellite, said measurements being used by said centralized location to calculate a position of the mobile terminal.
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Abstract
A system and method for satellite aided location tracking and data services using geosynchronous (GEO) and low earth orbit (LEO) satellites with global locating system. In one embodiment, a mobile terminal is designed for communication with both GEO and LEO satellites. This dual satellite functionality enables the asset tracking service to provide service across international service areas without hardware modification or reconfiguration of the mobile terminal device.
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Citations
20 Claims
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1. A mobile terminal, comprising:
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a first receiver for receiving signals from a plurality of global positioning system satellites; a second receiver for receiving signals from a geosynchronous satellite; and a transmitter module that includes a geosynchronous satellite transmitter and a low earth orbit satellite transmitter, wherein the mobile terminal selectively transmits, under control of a processor, measurements taken from said received global positioning system satellite signals to a centralized location via one of a geosynchronous satellite and a low earth orbit satellite, said measurements being used by said centralized location to calculate a position of the mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile terminal, comprising:
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a first receiver for receiving signals from a plurality of global positioning system satellites; and a transmitter module that includes a geosynchronous satellite transmitter and a low earth orbit satellite transmitter, wherein the mobile terminal selectively transmits, under control of a processor, measurements taken from said received global positioning system satellite signals to a centralized location via one of a geosynchronous satellite and a low earth orbit satellite, said measurements being used by said centralized location to calculate a position of the mobile terminal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A satellite communication method, comprising:
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receiving global positioning system signals from a plurality of global positioning system satellites; receiving signals from a geosynchronous satellite; and transmitting measurements taken from said received global positioning system satellite signals to a centralized location via a low earth orbit satellite, said measurements being used by said centralized location to calculate a position of the mobile terminal. - View Dependent Claims (18, 19, 20)
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Specification