SYSTEM AND METHOD FOR DETERMINING A USER DEVICE LOCATION

摘要

A system determines a user's location by receiving communication signals from a user device carried by the user. The communication signals sent from the user devices to wireless communications network base stations may be received by location sensors that are able to determine angles of arrival of the communication signals and, in turn, origin locations of the communication signals. A single angle of arrival may be sufficient to unambiguously determine the position of the user device in one axis of a three dimensional space. A second angle of arrival may be determined from a second pair of antennas to unambiguously determine the position of the user device in a second axis of the three dimensional space. Similarly a third angle of arrival may be determined from a third pair of antennas to unambiguously determine the position of the user device in the last axis of the three dimensional space.