COMBINED FINE TIMING MEASUREMENT (FTM) AND NON-FTM MESSAGING FOR POSITION DETERMINATION
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United States of America Patent
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Issued Date -
Dec 28, 2017
app pub date -
Jun 22, 2016
filing date -
Jun 22, 2016
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Abstract
In one aspect, a method includes performing, by a wireless station, a fine timing measurement (FTM) procedure with each of one or more FTM-enabled access points (APs) to obtain a respective one or more FTM-based round-trip time (RTT) measurement between the wireless station and each of the one or more FTM-enabled APs. The method also includes performing a non-FTM procedure with each of one or more non-FTM-enabled APs to obtain a respective one or more non-FTM-based RTT measurement. The wireless station then calculates a position of the wireless device based on both the one or more FTM-based RTT measurements and the one or more non-FTM-based RTT measurements.
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