Patent ID: 11874387
Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. An apparatus comprising:
a processing system including at least one processor; and
a computer-readable medium storing instructions which, when executed by the processing system, cause the processing system to perform operations, the operations comprising:
obtaining a location of a mobile device and a barometric pressure reading of the mobile device;
identifying a weather reference area and a first ground reference area containing the location, wherein the weather reference area contains a plurality of ground reference areas, wherein the first ground reference area is one of the plurality of ground reference areas;
calculating an elevation of the mobile device from the barometric pressure reading of the mobile device and a barometric pressure metric of a weather reference point of the weather reference area, wherein the weather reference point has a predetermined elevation, wherein the weather reference point is located in a second ground reference area of the plurality of ground reference areas that is different from the first ground reference area, wherein the elevation of the mobile device is calculated using the barometric pressure reading of the mobile device, the barometric pressure metric of the weather reference point, a temperature metric of the weather reference point, and the predetermined elevation of the weather reference point;
determining a height of the mobile device over a ground level of the location based upon the elevation of the mobile device that is calculated and based upon an elevation of the first ground reference area containing the location; and
providing a report of the location of the mobile device including the height of the mobile device over the ground level that is determined.