September 4, 2026 – In a significant move toward the unification of terrestrial and non-terrestrial telecommunications, ST Engineering iDirect has successfully demonstrated a pilot version of its multi-waveform 5G New Radio Non-Terrestrial Network (NR-NTN) user equipment (UE) modem. The demonstration, held this week at the European Space Agency (ESA) 5G NTN Forum, marks a pivotal shift in how satellite operators manage the transition from legacy broadcast-centric infrastructures to the high-speed, software-defined future of global 5G connectivity.
The technology, centered on the newly unveiled INT3000 modem platform, acts as a bridge between established satellite broadcast standards and the emerging 5G ecosystem, promising a seamless path for operators to modernize their networks without sacrificing legacy compatibility.
The Core Innovation: A Dual-Waveform Paradigm
The fundamental challenge facing satellite network operators today is the "bifurcation of technology." On one side, there is the highly efficient, mature ecosystem of DVB-S2X/MRC waveforms, which have powered satellite television and data distribution for years. On the other side is the 3GPP-standardized 5G NR-NTN, which is designed to integrate seamlessly with terrestrial mobile networks, allowing smartphones and IoT devices to connect directly to satellites.
ST Engineering iDirect’s INT3000 modem is designed to dismantle this divide. By supporting both DVB-S2X/MRC and 5G NR-NTN within a single hardware architecture, the device allows for a "hybrid" operational mode.
Key Technical Specifications and Capabilities:
- Multi-Waveform Agility: The ability to switch or concurrently support 5G NR-NTN and legacy DVB waveforms in one device.
- Intuition Integration: The pilot utilized iDirect’s proprietary Intuition ground system, an AI-driven, software-defined infrastructure that manages resource allocation across diverse orbital assets.
- Standards-Based Compliance: By strictly adhering to 3GPP protocols, the INT3000 ensures that satellite connectivity can be treated as just another "cell" in a global mobile network.
- Investment Protection: Operators can deploy the INT3000 today to maintain existing broadcast or broadband services, while gradually transitioning end-users to 5G NTN services via over-the-air updates or software-defined configurations.
Chronology of Development
The journey to this week’s demonstration at the ESA 5G NTN Forum is the result of several years of intensive research and development within the satellite industry, specifically targeting the convergence of mobile and space-based technologies.
- Q3 2024: ST Engineering iDirect identified a growing market demand for "future-proof" ground segment hardware. Internal research began on the INT3000 architecture, focusing on the high-compute requirements of dual-waveform processing.
- Q1 2025: The company began aligning its Intuition ground system to support the complex signaling requirements of 3GPP Release 17 and Release 18, which provide the framework for satellite-to-device communication.
- Q3 2025: Initial laboratory simulations were conducted to test waveform interoperability. The goal was to prove that a single modem could decode both DVB-S2X signals and 5G waveforms without introducing significant latency or power consumption penalties.
- September 2026 (The Current Milestone): The official demonstration at the ESA 5G NTN Forum marked the transition from "lab proof-of-concept" to a "pilot-ready" state. Using a simulated satellite link, iDirect proved that the modem could maintain a stable 5G NTN connection while simultaneously handling legacy data traffic.
Supporting Data: Why Convergence Matters
The transition to 5G NTN is not merely an upgrade in speed; it is an upgrade in accessibility. Industry analysts note that by 2028, the number of devices capable of connecting directly to satellites is expected to triple. However, most of these devices will rely on existing network backbones for some time.
Market Drivers for Multi-Waveform Integration:
- Spectrum Efficiency: 5G NR-NTN allows for more dynamic spectrum sharing compared to older DVB-based satellite protocols.
- Global Roaming: By using 3GPP standards, a user’s mobile device can theoretically roam from a terrestrial 5G tower in a city to a satellite-based 5G cell in a remote maritime or aviation environment without the need for specialized proprietary hardware.
- Operational Costs (OpEx): Maintaining two separate ground infrastructures—one for legacy DVB and one for 5G—is prohibitively expensive. The INT3000 effectively reduces the hardware footprint, allowing operators to consolidate ground stations.
Official Perspectives: Industry Leadership
The unveiling at the ESA Forum provided a platform for ST Engineering iDirect executives to articulate their vision for the future of telecommunications.
Shravan Gaddam, Vice President at ST Engineering iDirect, emphasized the pragmatism behind the engineering effort. "The industry is moving toward standards-based 5G NTN connectivity, but at the same time, operators must support existing satellite networks," Gaddam stated during the event. "Our vision for the INT3000 is to bring these worlds together in a single user equipment, providing a practical path for operators to evolve their networks while leveraging existing investments."
This sentiment reflects a broader industry trend of "evolutionary migration." Rather than asking operators to rip and replace their entire network (a multi-billion dollar endeavor), iDirect is offering a bridging technology that treats 5G as an additive layer to existing satellite capabilities.
Industry observers at the ESA forum noted that the involvement of European space authorities suggests this technology will play a central role in the European Union’s connectivity initiatives, which aim to provide universal coverage across the continent, including the "dead zones" of the Alps and maritime regions.
Implications for the Future of Connectivity
The success of the INT3000 demonstration has profound implications for the satellite, mobile, and 6G industries.
1. The Path to 6G
The development of this modem is being viewed as a "stepping stone" to 6G. While 5G NTN integrates satellites into the mobile fold, 6G is expected to rely on a non-terrestrial component as a native, inherent feature of the network architecture. By perfecting multi-waveform interoperability today, iDirect is positioning itself as a foundational player in the eventual rollout of 6G, which will require even tighter synchronization between ground and space assets.
2. Democratizing Access
For the consumer, the implications are profound. If a single modem can bridge these technologies, the cost of satellite-enabled smartphones and IoT sensors will likely decrease. The "barrier to entry" for manufacturers to create space-capable devices is lowered when they can rely on a standard 3GPP modem that also understands how to handle legacy satellite signals.
3. Resilience and Emergency Services
The ability to maintain a hybrid network is critical for disaster recovery. During natural disasters, when terrestrial cell towers are often destroyed, the INT3000’s capability to switch between legacy networks (which may have higher power availability) and 5G NTN (which provides higher bandwidth) ensures that first responders can maintain constant, reliable communication.
4. Competitive Landscape
ST Engineering iDirect is effectively setting the benchmark for ground segment manufacturers. Competitors in the satellite ground-station market—such as Kratos, Gilat, and Hughes—are all racing toward 5G integration. By proving its hardware is already capable of "multi-waveform" support, iDirect has gained a first-mover advantage in the "hybrid" hardware category.
Conclusion: A New Era of Unified Networks
The pilot demonstration of the INT3000 is more than just a successful engineering experiment; it is a clear signal that the era of "siloed" satellite technology is drawing to a close. By enabling the coexistence of legacy broadcast and 5G standards, ST Engineering iDirect has provided a viable, realistic roadmap for the satellite industry to integrate with the broader mobile telecommunications world.
As the industry looks toward the next five years, the focus will undoubtedly shift from "can we do it?" to "how quickly can we scale?" With the foundation laid at the ESA 5G NTN Forum, the industry is now equipped with the tools necessary to bridge the gap between the ground and the stars, ensuring that high-speed, interoperable connectivity becomes a standard feature of the modern human experience, regardless of geography.
