SATELLITE BASED POSITIONING METHOD AND SYSTEM FOR COARSE LOCATION POSITIONING
First Claim
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1. A satellite based positioning system, comprising:
- a location server in a network, wherein the location server receives satellite positioning data, including global positioning system (GPS) data;
a base station in the network;
a mobile station configured to communicate with the base station, wherein the mobile station comprises,a memory that stores satellite sub-almanac data;
a central processing unit (CPU) configured to calculate a coarse position using the sub-almanac data; and
a transceiver configured to transmit the coarse position to the network.
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Abstract
A satellite based positioning method and system including storing satellite sub-almanac data on a mobile station. Embodiments include using the sub-almanac data to take measurements and calculate a coarse position of the mobile station. Embodiments further include a location server calculating a correction to the coarse position, and the location server determining whether any sub-almanacs used to calculate the coarse position require replacement.
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Citations
11 Claims
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1. A satellite based positioning system, comprising:
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a location server in a network, wherein the location server receives satellite positioning data, including global positioning system (GPS) data; a base station in the network; a mobile station configured to communicate with the base station, wherein the mobile station comprises, a memory that stores satellite sub-almanac data; a central processing unit (CPU) configured to calculate a coarse position using the sub-almanac data; and a transceiver configured to transmit the coarse position to the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification