Advanced triggers for location-based service applications in a wireless location system
AssigneeTruePosition, Inc.
InventorsRobert J. Anderson, Jeffrey F. Bull, Paul Matthew Czarnecki, Thomas Stephen Ginter, Matthew L. Ward
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Abstract
Methods and systems are employed by a wireless location system (WLS) for locating a wireless device operating in a geographic area served by a wireless communications system. An exemplary method includes monitoring a set of signaling links of the wireless communications system, and detecting at least one predefined signaling transaction occurring on at least one of the predefined signaling links. Then, in response to the detection of the at least one predefined network transaction, at least one predefined location service is triggered.
Claims21
A method for locating a wireless device operating in a geographic area served by a wireless communications system, comprising:
- monitoring a set of signaling links of the wireless communications system, wherein said signaling links include at least one radio link between the wireless device and a base transceiver station, wherein said monitoring of said radio link comprises receiving messages on at least one of Random Access Channel (RACH), Access Grant Channel (AGCH), and Standalone Dedicated Control Channel (SDCCH) channels, and wherein said monitoring comprises passively monitoring said set of links such that the operation of said wireless communications system is unaffected by said monitoring;
- detecting at least one predefined network transaction involving a predefined trigger occurring on at least one of said signaling links;
- and
- in response to the detection of said at least one predefined network transaction involving a predefined trigger, initiating at least one predefined location service involving locating said wireless device.
A system for use in or by a wireless communications system, comprising:
- a monitoring subsystem for monitoring a set of signaling links of the wireless communications system, wherein said signaling links include at least one radio link between a wireless device and a base transceiver station, wherein said monitoring of said radio link comprises receiving Random Access Channel (RACH) and Access Grant Channel (AGCH) messages, and wherein said monitoring comprises passively monitoring said set of links such that the operation of said wireless communications system is unaffected by said monitoring;
- and
- a mechanism for detecting at least one predefined network transaction involving a predefined trigger occurring on at least one of said predefined signaling links.
Dependencies are inferred from the claim text.