WLAN-BASED POSITIONING SYSTEM
First Claim
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1. A method comprising:
- generating a plurality of beacons in a period of time from a single access point device, in which each beacon of the plurality of beacons has a unique identifier to differentiate each beacon from other beacons;
transmitting each beacon from the single access point device in a different direction from other beacons;
receiving at least one transmitted beacon at a mobile receiving device;
determining a received signal parameter from the at least one received beacon; and
using the received signal parameter to determine location of the mobile receiving device.
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Abstract
A technique to provide a WLAN-based positioning system to determine a location of a mobile wireless receiving device. A single access point is used to generate a plurality of beacons, in which each beacon of the plurality of beacons has a unique identifier. Each beacon is then transmitted in a different direction from other beacons. When the receiving device receives at least one of the transmitted beacons, signal strength or some other signal parameter is obtained from the at least one received beacon. The received signal parameter is used to determine the location of the mobile receiving device.
38 Citations
20 Claims
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1. A method comprising:
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generating a plurality of beacons in a period of time from a single access point device, in which each beacon of the plurality of beacons has a unique identifier to differentiate each beacon from other beacons; transmitting each beacon from the single access point device in a different direction from other beacons; receiving at least one transmitted beacon at a mobile receiving device; determining a received signal parameter from the at least one received beacon; and using the received signal parameter to determine location of the mobile receiving device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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generating a plurality of beacons in a period of time from a single access point device, in which each beacon of the plurality of beacons has a unique identifier to differentiate each beacon from other beacons; and transmitting each beacon from the single access point device in a different direction from other beacons, such that when a mobile receiving device receives at least one transmitted beacon, the mobile receiving device determines a received signal parameter from the at least one received beacon, and uses the received signal parameter to determine location of the mobile receiving device. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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a baseband module of an access point device to generate a plurality of unique identifiers in order for each beacon of a plurality of beacons to be assigned a different unique identifier to differentiate each beacon from other beacons; a transmitter of the access point device coupled to the baseband module to receive the unique identifiers and to generate the beacons at a radio frequency; and a directional antenna of the access point device coupled to the transmitter to transmit each beacon in a different direction from other beacons, such that when a mobile receiving device receives at least one transmitted beacon the mobile receiving device determines a received signal parameter from the at least one received beacon, and uses the received signal parameter to determine location of the mobile receiving device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification