Previously, we discussed Roaming and Network Sharing. In this final article of the series, we turn to service realization and how NTN enables 5G services such as voice, messaging, and data.
Service realization brings 5G experiences to space. Messaging, voice, and data services all require adaptations of terrestrial models. SMS over NAS supports IoT and emergency messaging, while IP Multimedia Subsystem-based (IMS-based) solutions enable rich communication and regulated voice calls.
For quick wins, OTT apps can deliver voice services without heavy infrastructure changes. Data services range from NB-IoT optimizations like Distributed Open Non-Access Stratum (DoNAS) to advanced 5G Core-based solutions with network slicing for premium tiers. These innovations ensure that whether you’re sending an emergency text from the middle of the ocean or streaming video from a remote location, the experience remains reliable.
Terrestrial networks alone cannot meet the demands of a world that expects seamless, always-available communication across borders, geographies, and environments. Non-Terrestrial Networks extend this foundation by filling critical coverage gaps and enabling continuity where terrestrial infrastructure cannot reach.
The MSSA Reference Architecture provides a common framework for coordination, roaming, and resource management. It enables collaboration across traditionally siloed domains, ensuring that satellite and terrestrial networks operate as a unified system rather than parallel technologies.
This shift marks a transition from isolated coverage solutions to a truly integrated global connectivity fabric. Through smart orchestration, flexible architectures, and strong industry alignment, NTN will deliver reliable, high-quality service anywhere on Earth where everyone is connected to everything, everywhere through a globally interoperable communications ecosystem.
Future updates in our Reference Architecture will explore emerging topics and provide deeper insights into areas introduced in this first release. If you have questions or want to connect, visit:
https://www.mss-association.org/contact-us/.