Method and location server for determining a postion of a target device
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United States of America Patent
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Dec 23, 2014
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N/A
app pub date -
Apr 29, 2010
filing date -
Sep 10, 2009
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Abstract
A method and location server (120) enable determining a position of a target device (105). The method includes receiving at the location server (120), from the target device (105), a distance message identifying a relative distance between the target device (105) and one or more base stations (115). Next, it is determined at the location server (120) that a primary positioning method is unavailable. In response to the primary positioning method being unavailable, a position of the target device (105) is determined using both a) an alternative positioning method and b) the relative distance between the target device (105) and the one or more base stations (115) that was identified in the distance message.
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