Method and apparatus for geolocating a wireless communication unit
First Claim
1. A method comprising:
- receiving, by a device, measurement data for radio frequency (RF) signals between a wireless communication unit and at least one base transceiver station;
calculating, by the device, an RF measurement based geolocation estimate for the wireless communication unit based on the measurement data;
obtaining, by the device, geographical area data for at least two wireless coverage areas identifiable by the wireless communication unit;
determining, by the device, a geolocation validation area based on the geographical area data for the at least two wireless coverage areas identifiable by the wireless communication unit, where determining the geolocation validation area includes;
determining the geolocation validation area based on calculating an area of overlap of coverage areas for the at least two wireless coverage areas identifiable by the wireless communication unit;
determining, by the device, whether the RF measurement based geolocation estimate is located outside the geolocation validation area; and
deriving, by the device, a confidence factor for the RF measurement based geolocation estimate based on whether the RF measurement based geolocation estimate is located outside the geolocation validation area.
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Accused Products
Abstract
A method for geolocating a wireless communication unit. The method comprises receiving measurement data for radio frequency (RF) signals between the wireless communication unit and at least one base transceiver station, calculating an RF measurement based geolocation estimate for the wireless communication unit based at least partly on the received RF signal measurement data, obtaining geographical area data for at least one wireless coverage area visible to the wireless communication unit, determining a geolocation validation area based at least partly on the obtained geographical area data for the at least one wireless coverage area visible to the wireless communication unit, and deriving a confidence factor for the RF measurement based geolocation estimate based at least partly on the determined geolocation validation area.
6 Citations
20 Claims
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1. A method comprising:
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receiving, by a device, measurement data for radio frequency (RF) signals between a wireless communication unit and at least one base transceiver station; calculating, by the device, an RF measurement based geolocation estimate for the wireless communication unit based on the measurement data;
obtaining, by the device, geographical area data for at least two wireless coverage areas identifiable by the wireless communication unit;
determining, by the device, a geolocation validation area based on the geographical area data for the at least two wireless coverage areas identifiable by the wireless communication unit, where determining the geolocation validation area includes;determining the geolocation validation area based on calculating an area of overlap of coverage areas for the at least two wireless coverage areas identifiable by the wireless communication unit;
determining, by the device, whether the RF measurement based geolocation estimate is located outside the geolocation validation area; and
deriving, by the device, a confidence factor for the RF measurement based geolocation estimate based on whether the RF measurement based geolocation estimate is located outside the geolocation validation area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device comprising:
- one or more processors to;
receive measurement data for radio frequency (RF) signals between a wireless communication unit and at least one base transceiver station;
calculate an RF measurement based geolocation estimate for the wireless communication unit based at least partly on the measurement data;
obtain geographical area data for at least two wireless coverage areas identifiable by the wireless communication unit;
determine a geolocation validation area based on the geographical area data for the at least two wireless coverage areas identifiable by the wireless communication unit, where the one or more processors, when determining the geolocation validation area, are to;
determine the geolocation validation area based on calculating an area of overlap of coverage areas for the at least two wireless coverage areas identifiable by the wireless communication unit;
determine whether the RF measurement based geolocation estimate is located outside the geolocation validation area; and
derive a confidence factor for the RF measurement based geolocation estimate based on whether the RF measurement based geolocation estimate is located outside the geolocation validation area. - View Dependent Claims (18, 19)
- one or more processors to;
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20. One or more non-transitory computer-readable media storing instructions, the instructions comprising:
- one or more instructions that, when executed by a processor, cause the processor to;
receive measurement data for radio frequency (RF) signals between a wireless communication unit and at least one base transceiver station;
calculate an RF measurement based geolocation estimate for the wireless communication unit based on the measurement data;
obtain geographical area data for at least one wireless coverage area identifiable by the wireless communication unit, the geographical area data for the at least one wireless coverage area identifiable by the wireless communication unit comprising, for each of the least one wireless coverage area;
an indication of a geographical location representative of a central point within the wireless coverage area, and an indication of a radius of the wireless coverage area;
determine a geolocation validation area based on the geographical area data for the at least one wireless coverage area identifiable by the wireless communication unit;
determine whether the RF measurement based geolocation estimate is located outside the geolocation validation area; and
derive a confidence factor for the RF measurement based geolocation estimate based on whether the RF measurement based geolocation estimate is determined to be located outside the geolocation validation area.
- one or more instructions that, when executed by a processor, cause the processor to;
Specification