Validating Tomorrow’s SatComs Services Today: ESA Project Case Studies with SAC & Calnex

Calnex and Satellite Applications Catapult will present insights from two ESA programmes advancing next?generation SatComs-5G integration. Drawing on real constellation?level modelling from the TINA project and the hybrid 5G/LEO testbed created for NG?eCall, the session will show how high?fidelity network emulation accelerates innovation, derisks complex mission architectures, and enables reliable, real?world testing before deployment. Key Takeaways - How SAC and Calnex modelled dynamic, multi?orbit satellite networks-including OneWeb?scale constellations-to support ESA research - Learnings from building the ESA NG?eCall hybrid SatComs/5G testbed and validating performance under rapidly changing LEO conditions - Why advanced emulation is essential for application readiness, system optimisation, and mission assurance in modern space?enabled services