Method for determining location of wireless devices

A method of determining the direction of a client device 820 relative a network device 810 of known location and having plural antennas 812, 814. The client device receiving sounding signals transmitted by each antenna of the network device. The arrival times of the sounding signals being used to de...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Erik Lindskog, Ian Charles Blair, Hong Wan, Naveen Kumar Kakani, Ben Tarlow, Raja Banaerjea
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A method of determining the direction of a client device 820 relative a network device 810 of known location and having plural antennas 812, 814. The client device receiving sounding signals transmitted by each antenna of the network device. The arrival times of the sounding signals being used to determine an angle F of a straight-line path from a centroid of the antennas of the network device to the client device. The client device arranged to receive a steered beam communication channel between the network device and the client device. The method preferably includes multiple network devices each determining the angle an angle of a straight-line path from a centroid of its antennas to the client device. The method determining the location of the client device by triangulation using the determined angles.