Drones are operating increasingly in areas out of sight of the person controlling them. However, conventional remote controls have a limited range, which makes them unsuitable for these flights. On the other hand, simple mobile network-based systems have so far been unable to guarantee a reliable connection when mobile network loads are high or where there is a lack of network coverage. Researchers at the Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI have joined forces with partners in the SUCOM project to develop a new mobile network system that can be used to control drones even over long distances and over difficult terrain.