Patent ID: 8320931
Filing Date: 2012-11-27
Classification: G01S,H04W

Abstract:
1. A system for use in or by a wireless communications system, comprising: a links monitoring system (LMS) for monitoring one or more signaling links of the wireless communications system; a mechanism for defining a geo-fenced area by setting a common Location Area Code (LAC) in a broadcast control channel (BCCH) of a plurality of cells or sectors that cover an area to be geo-fenced, thereby enabling detection of a mobile device's entry into and exit out of the geo-fenced area by causing at least one of an automatic, mobile device initiated, location update transaction, a handover transaction, and a Network Measurement Report (NMR) transaction; and a mechanism for detecting that a mobile device has performed any of the following acts with respect to the geo-fenced area: (1) entered said geo-fenced area, (2) exited said geo-fenced area, and (3) come within a predefined degree of proximity near said geo-fenced area; wherein the system is configured to define a static geo-fenced area by setting a common LAC in a plurality of cells or sectors that cover a specified area to be geo-fenced, whereby entry into and exit out of the geo-fenced area is detectable even if the mobile device is idle before the entry and exit; wherein the system is configured to use a process for detecting an idle mobile device, the process comprising: setting triggers for cell global identities (CGIs) in the geo-fenced area and for any location update transactions; wherein the system is configured to use a process for detecting a mobile device during handover, the process comprising: wherein the system is configured to use a process for detecting a mobile device using proximity detection, the process comprising: