Multi-mode global positioning system for use with wireless networks
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United States of America Patent
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Feb 11, 2003
Grant Date -
Jul 4, 2002
app pub date -
Feb 5, 2002
filing date -
Aug 14, 2000
priority date (Note) -
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Abstract
The present invention discloses a GPS system that can operate in different modes depending on the network facilities and bandwidth available, the GPS information that can be acquired, or user or system requirements. The modes comprise standalone mode, where a mobile communications device computes the position of the device, an autonomous mode, where the mobile communications device transmits the computed position to a server, application, or PSAP in a communications network, a network aided mode, where the network aides the mobile communications device in determining the position of the device, a network based mode, and other modes.
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