Determining wireless device locations
First Claim
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1. An apparatus comprising:
- an access point including;
a wireless communication interface to communicate data with a wireless mobile device; and
logic coupled to the wireless communication interface to receive a time signal from the wireless mobile device through the wireless communication interface.
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Abstract
Wireless network devices can obtain their geographical location by triangulating with access points that have precise time information. In response to a location prompt, a wireless device can send a transmission to multiple access points that are within its range. The different times at which the transmission is received at different access points can be collected and forwarded to a server, which can compute the location of the wireless device using triangulation techniques. The access points can calibrate their own time bases from time services received from global position satellites.
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Citations
8 Claims
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1. An apparatus comprising:
an access point including;
a wireless communication interface to communicate data with a wireless mobile device; and
logic coupled to the wireless communication interface to receive a time signal from the wireless mobile device through the wireless communication interface. - View Dependent Claims (2, 3, 4)
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5. An apparatus comprising:
an access point including;
a wireless communication interface to communicate data with a wireless mobile device; and
logic coupled to the wireless communication interface to transmit a time signal to the wireless mobile device through the wireless communication interface. - View Dependent Claims (6, 7, 8)
Specification