Angle of arrival (AOA) positioning method and system for positional finding and tracking objects using reduced attenuation RF technology
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United States of America Patent
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Aug 8, 2023
Grant Date -
Sep 30, 2021
app pub date -
Jun 8, 2021
filing date -
Aug 3, 2012
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Abstract
Systems and methods for determining user equipment (UE) locations within a wireless network using reference signals of the wireless network are described. The disclosed systems and methods utilize a plurality of in-phase and quadrature (I/Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. Based on received reference signal parameters the reference signal within the signals from each receive channel among the receive channels is identified. Based on the identified reference signal from each receive channel, an angle of arrival between a baseline of the two or more antennas and incident energy from the UE to the two or more antennas is determined. That angle of arrival is then used to calculate the location of the UE. The angle of arrival may be a horizontal angle of arrival and/or a vertical angle of arrival.
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