XCAT-SmartShield transmits a reference signal through probe antennas. It measures RSRP in a field MIMO environment to allow 1 to 1 connection between BS Tx and UE Rx antenna with physical RF cable connection in a lab area. However some of the recent UE device do not have externally figured antenna connector and unable to open the back cover. XCAT-SmartShield ease this hassle with providing virtual 1 to 1 wireless connection between BS and UE.