Location-based positioning method and system
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United States of America Patent
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Aug 11, 2015
Grant Date -
Oct 23, 2014
app pub date -
Nov 16, 2012
filing date -
Nov 16, 2011
priority date (Note) -
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Abstract
Provided are a location-based positioning method and system. The method comprises the following steps. A positioning request is received from a terminal and a location and a moving trajectory of the terminal are determined. A predicted trajectory is calculated according to the moving trajectory and road network information. A positioning request is received from the terminal at a position correction point, and a moving direction and a moving speed of the terminal is received in accordance with a location of the position correction point and the predicted trajectory. A next location of the terminal in the determined moving direction is determined based on the predicted trajectory.
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