Photo by Francesco Ungaro on Pexels

The Satellite-Terrestrial Merge Is Getting Complicated

For years, satellite connectivity existed in a largely parallel universe to terrestrial telecom — complementary, occasionally competitive, but rarely subject to the same regulatory machinery that governs mobile network operators. That era is ending. As non-terrestrial networks (NTN) become formally integrated into 3GPP-defined 5G architecture, they are inheriting all the complexity that comes with being critical communications infrastructure: supply chain scrutiny, certification requirements, spectrum coordination, and the full weight of geopolitical rivalry.

The confluence of events shaping NTN policy in 2024 and into 2025 is striking. A proposed U.S. Senate measure targeting Chinese-manufactured satellite and NTN equipment is gaining traction, new certification and interoperability testing frameworks are being developed to govern NTN device integration, and major satellite operators — Starlink chief among them — are navigating an increasingly fraught geopolitical landscape that affects where and how their services can be deployed. Taken together, these threads are weaving a new regulatory reality for an industry that once prided itself on orbiting above terrestrial concerns.

Senate Moves to Extend the China Equipment Ban to Orbit

The United States has spent the better part of half a decade methodically excising Chinese telecommunications equipment from its networks. The FCC’s “Covered List,” which includes Huawei, ZTE, Hytera, Hikvision, and Dahua, has effectively blacklisted these vendors from federally subsidized network builds. Now, lawmakers are eyeing the satellite supply chain as a potential vulnerability that has so far escaped similar scrutiny.

Proposed Senate legislation would extend restrictions to NTN-related hardware and components with ties to Chinese manufacturers or entities under the influence of the Chinese government. The concern is straightforward: as NTN becomes embedded in 5G core architecture — particularly through 3GPP Release 17 and Release 18 NTN specifications — a compromised satellite segment could theoretically expose terrestrial network traffic to interception or disruption. Legislators are increasingly treating low Earth orbit (LEO) infrastructure with the same national security seriousness as terrestrial radio access networks.

The practical implications for the industry are significant. Satellite component manufacturing has a complex, globally distributed supply chain, and many subsystems — from application-specific integrated circuits to ground station hardware — involve Chinese suppliers at various tiers. A broad prohibition could force manufacturers to undertake costly supply chain audits and re-sourcing efforts, not unlike what terrestrial operators faced when ripping and replacing Huawei radio equipment.

3GPP and the Certification Challenge

On the standards front, 3GPP’s integration of NTN into the 5G framework — formalized beginning in Release 17 — has created a new set of technical requirements that satellite operators and device manufacturers must now satisfy. NTN support covers both GSO (geostationary orbit) and NGSO (non-geostationary orbit) constellations, with the latter presenting unique challenges around Doppler shift compensation, handover management across rapidly moving satellites, and timing advance adjustments that can stretch into the tens of milliseconds.

The certification ecosystem is still catching up. Testing bodies and industry groups are working to define conformance and interoperability test suites for NTN-capable devices — particularly smartphones and IoT modules that leverage direct-to-device (D2D) satellite connectivity. Apple’s satellite SOS feature and similar implementations from Qualcomm-chipset Android devices have demonstrated consumer appetite for the capability, but ensuring these implementations meet carrier-grade reliability and interoperability standards across different satellite networks remains an open engineering challenge.

Device Certification in a Multi-Orbit World

The certification complexity is compounded by the multi-orbit nature of today’s NTN landscape. A device that seamlessly hands off between a LEO Starlink connection and a GEO backup, while also maintaining a 5G NR terrestrial session, must satisfy distinct timing, power, and protocol requirements for each link. Testing laboratories are working to build the methodologies and RF simulation environments capable of validating these scenarios — a process that industry stakeholders say is still in relatively early stages compared to the mature LTE and 5G device certification pipelines.

Starlink Operators and the Geopolitics of Coverage

SpaceX’s Starlink has become the world’s dominant LEO broadband constellation by nearly every metric — subscriber count, coverage breadth, and bandwidth capacity. But its operator relationships are increasingly shaped by geopolitical factors that no amount of engineering elegance can fully resolve. The war in Ukraine made Starlink a household name and a battlefield utility, but it also exposed the tensions inherent in a private U.S. company providing connectivity infrastructure in active conflict zones, with decisions about service activation and geographic coverage carrying life-or-death consequences.

For Mobile Network Operators (MNOs) partnering with Starlink — through agreements like those with T-Mobile in the U.S. and various carriers internationally for the direct-to-cell service — the geopolitical footprint of their satellite partner is now a business consideration. Governments in certain regions have either delayed licensing for Starlink operations or imposed conditions tied to data sovereignty and lawful intercept compliance. This creates a patchwork of availability that operators must navigate when designing resilient hybrid NTN-terrestrial network strategies.

Industry Outlook: Integration Without Immunity

The overarching narrative of NTN in 2025 is integration — technical, commercial, and regulatory. Satellite connectivity is no longer a niche fallback for remote areas; it is becoming a designed-in layer of resilient, standards-compliant 5G architecture. But integration into that ecosystem means inheriting its responsibilities and its battles.

The same forces that reshaped terrestrial telecom — national security reviews, vendor diversification mandates, rigorous certification requirements, and spectrum governance — are now arriving in orbit. For operators, vendors, and policymakers alike, the message is increasingly clear: in the age of NTN-integrated 5G, there is no such thing as being above the fray.