Jacobson Holman PLLC
Apparatus and method for tracking location of mobile station
Disclosed is an apparatus and method for determining a mobile station's precise three-dimensional location in a simple way, that includes a beam-forming antenna's receiving of a signal from the mobile station; measuring the distance between a wireless base station and the mobile station from the received signal; determining the mobile station's azimuth angle by horizontal scanning of the beam-forming antenna and the mobile station's elevation angle by vertical scanning of the beam-forming antenna; and updating the mobile station's distance, azimuth angle, and elevation angle at regular time intervals, thereby acquiring the mobile station's three-dimensional location simply and with precision.
Electronics and Telecommunications Research Institute
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Eung-Bae Seung-Hwan
Kim Lee