Location information determination based on timing measurements in wireless networks
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United States of America Patent
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Aug 17, 2021
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app pub date -
Aug 27, 2018
filing date -
Aug 27, 2018
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Abstract
Method, systems and devices for location information determination based on timing measurements are described. One example method includes transmitting, by a communication apparatus, a timing request to a plurality of network devices, where the timing request comprises a respective expected response time for each of the plurality of network devices, receiving, at a plurality of times, a plurality of timing measurements from each of the plurality of network devices, wherein each of the plurality of times is based on the corresponding expected response time, and the plurality of timing measurements comprises a respective time of arrival (ToA) timestamp and a respective time of departure (ToD) timestamp, and determining a location information of the communication apparatus based on an estimate of a round trip delay that is computed using a difference of the respective ToA and ToD timestamps from the plurality of timing measurements.
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