Testing Regenerative And Transparent 5G NTN Architectures With The ACE9600

As 5G Non-Terrestrial Networks (NTN) evolve from transparent satellite payloads to regenerative architectures with onboard gNB functionality, validating system performance has become increasingly complex. This application note explores how the Maury Microwave ACE9600 Advanced Channel Emulator enables engineers to recreate realistic satellite environments in the lab, helping accelerate development while reducing deployment risk.

Unlike terrestrial wireless systems, NTN communications must contend with constantly changing propagation delays, Doppler shifts, path loss, beam transitions, and satellite handovers. Traditional RF validation methods cannot accurately reproduce these dynamic conditions, making advanced channel emulation essential for testing modems, user equipment (UE), gateways, and network infrastructure.

The application note details how the ACE9600 generates synchronized, time-varying RF impairments across multiple channels to emulate realistic satellite movement and orbital dynamics. Engineers can evaluate carrier synchronization, waveform stability, receiver performance, beam transitions, multi-link scenarios, fading, and dynamic attenuation using configurable scenarios generated with SATGEN II or integrated with Ansys STK.

Supporting both transparent and regenerative 5G NTN architectures, the ACE9600 provides a flexible platform for emulating LEO, MEO, GEO, and multi-orbit constellations without dedicated hardware changes. By delivering controlled, repeatable testing of real-world satellite channel conditions, it enables developers to improve interoperability, validate next-generation network designs, and confidently prepare satellite communication systems for deployment.