Method for determining location of wireless devices
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United States of America Patent
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Feb 26, 2019
Grant Date -
Jan 11, 2018
app pub date -
Sep 22, 2017
filing date -
Jan 3, 2013
priority date (Note) -
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Abstract
To determine a location of a client device in a wireless network having at least first and second network devices, with known locations, one of the network devices transmits a message to the other network device and the other network device responds with an acknowledgement message. A client device receives the message and the acknowledgement message as well as respective times indicating actual times at which the message and the acknowledgement message were processed by one of the first and second network devices. The client device determines its location based on the times at which it received the message and the acknowledgement message and the difference between the actual processing times. This location may be refined by determining an angle between the client device and at least one of the network devices having multiple antennas and being configured for steered beam communications.
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