Position-based modulation system and method
First Claim
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1. A communications device comprising:
- a global positioning system (GPS) receiver capable of receiving position data;
a radio frequency (RF) transceiver having at least a first transceiving channel;
a geographical information system (GIS) database of topographical data; and
a processor configured for;
calculating a line-of-site from position data associated with the communications device and position data associated with a second communications device,calculating a link-loss value for the first transceiving channel based on the line-of-sight and the topographical data of the GIS database, andoptimizing a modulation mode for the first transceiving channel based on the link-loss value.
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Abstract
The present invention is a position-based modulation system for communications devices. The device may comprise one or more of the following features: (a) a global positioning system (GPS) receiver capable of receiving positioning data from GPS satellites; (b) a radio frequency (RF) transceiver having at least a first channel and a second channel; (c) a geographical information system (GIS) database of topographical data; (d) a processor capable of optimizing transceiving parameters of the RF transceiver based on the positioning data and topographical data; and (e) a bus linking the GPS receiver, RF transceiver, GIS database, and processor.
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Citations
12 Claims
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1. A communications device comprising:
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a global positioning system (GPS) receiver capable of receiving position data; a radio frequency (RF) transceiver having at least a first transceiving channel; a geographical information system (GIS) database of topographical data; and a processor configured for; calculating a line-of-site from position data associated with the communications device and position data associated with a second communications device, calculating a link-loss value for the first transceiving channel based on the line-of-sight and the topographical data of the GIS database, and optimizing a modulation mode for the first transceiving channel based on the link-loss value. - View Dependent Claims (2, 3, 4, 5)
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6. A method for data communications comprising the steps of:
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receiving position data associated with a first communications device; receiving position data associated with a second communications device; accessing a geographic information system (GIS) database having topographical data; calculating a line-of-site from position data associated with the communications device and position data associated with a second communications device; calculating a link-loss value for the first transceiving channel based on the line-of-sight and the topographical data of the GIS database; optimizing a modulation mode for the first transceiving channel based on the link-loss value; and transceiving communications data via the first transceiving channel. - View Dependent Claims (7, 8, 9)
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10. A non-transitory machine readable medium comprising machine executable instructions for executing a process, the process comprising:
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receiving position data associated with a communications device; receiving position data associated with a second communications device; calculating a line-of-site from position data associated with the communications device and position data associated with a second communications device; accessing a GIS database to obtain topographical data; calculating a link-loss value for the first transceiving channel based on the line-of-sight and the topographical data of the GIS database; optimizing a modulation mode for the first transceiving channel based on the link-loss; and transceiving instructions transceive communications data via the first transceiving channel. - View Dependent Claims (11, 12)
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Specification