Patent ID: 8965335
Filing Date: 2015-02-24
Classification: H04W

Abstract:
1. A device to detect use of a mobile device without altering an uplink signal and a downlink signal associated with the use of the mobile device, comprising: at least one antenna for detecting a mobile device uplink signal and for detecting a cell tower downlink signal; a plurality of uplink filters and uplink amplifiers for enhancing the mobile device uplink signal detected by the at least one antenna; an uplink power detector for detecting the enhanced mobile device uplink signal; a plurality of downlink filters and downlink amplifiers for enhancing the cell tower downlink signal; a downlink power detector for detecting the enhanced cell tower downlink signal; and a logic circuit comparing an output from the uplink power detector with an output from the downlink power detector to determine whether an unauthorized mobile device is being used in a predefined area.