Section: 5.8.2 Scenario
Content: A UAV control center operates a UAV using 3GPP communication. Through this 3GPP communication link toward the UAV, the UAV control center can see the video image transmitted by the UAV and sends flight command to the UAV. To avoid collision among UAVs, the UAV transmits identification messages to identify itself to other UAVs, using direct device connection. These identification messages can be received also by observation devices deployed by UAV service operator on the ground. These ground-based observation devices report the location and the identity of the detected UAVs to the UAV control center, to assist the control of the UAV. Furthermore, national ATC system can be enhanced to receive identification messages transmitted by UAVs using 3GPP communication, to have a nation-wide view of aerospace.