Patent ID: 9681253
Date: 2017-06-13
CPC Classifications: H04L,H04W

Claim:
1. A method of improving location determination accuracy of a mobile device comprising: monitoring, on the mobile device, a parent geofence that geographically encompasses a plurality of child geofences, each of the child geofences representing a physical location within the parent geofence; detecting, based at least in part on a first location of the mobile device, entry into a first child geofence of the plurality of child geofences within the parent geofence; detecting, based at least in part on a second location of the mobile device, entry into a second child geofence of the plurality of child geofences within the parent geofence; tracking a chronology of the plurality of child geofences entered by the mobile device, the chronology indicating a chronological sorting of location data indicative of locations of the mobile device within the parent geofence, the location data including at least first location data corresponding to the first location of the mobile device and second location data corresponding to the second location of the mobile device; and calculating a trajectory of the mobile device based on the chronology of child geofences.