Method and apparatus of determining location of an unauthorized communication unit

摘要

Location of an unauthorized communication unit 102 may be detected in a wireless communication system 100 by determining that an identification code being used by the communication unit has been validated in an unauthorized manner. Having determined this, the site from which the communication unit is transmitting is determined. With the transmitting site determined, RF receivers 110, 111 in the proximity of the transmitting site are enabled to receive a subsequent RF transmission from the communication unit. The RF transmissions received by the RF receivers are then used to calculate the location of the communication unit.