Objective: The objective of the activity is to develop and test NGSO networking techniques for 5G V2X services. The developments will be implemented and verified in a simulator modelling realistic system scenarios of 5G LEO satellites. Targeted Improvements: Enabling the provision of 5G V2X services by satellite. Description:Due to their low altitudes, LEO satellite systems may offer low-latency 5G connectivity that, paired with on-board edge computing, enables their use for 5G V2X services from space such as traffic/congestion control, situational awareness or mapping information that can be used for self-driving vehicles. On the other hand, the continuous motion of LEO satellites brings about several challenges such as satellite handover and integration with the terrestrial networks. In addition, reliable multicasting for software and database updates with LEO satellites call for feedback suppression and routing protocols. To address these issues, the proposed activity will identify the networking challenges for NGSO satcom systems to provide 5G V2X services. The activity will then develop handover, terrestrial integration, multicast routing and reliable multicast feedback suppression techniques. The developments together with promising edge computing solutions will be implemented and verified in a simulator modelling realistic system scenarios of 5G LEO satellites.