By Viet Nguyen, President, 5G Americas (February 2025) –
As the wireless industry evolves, ensuring seamless connectivity for everyone, everywhere has become a central goal. While terrestrial mobile networks have achieved remarkable coverage in urban and suburban areas, many rural, remote, and maritime regions remain out of reach. 5G Americas latest white paper, “New Developments in 5G and Non-Terrestrial Networks” takes a look at the latest information on the status of 5G and Non-Terrestrial Networks (NTN), building on previous updates and reports.
This new white paper shows how by integrating with existing 4G and 5G infrastructure, NTN is beginning to complement terrestrial networks, extend coverage, and enable critical communications in previously unreachable locations. Indeed, NTN encompasses a wide range of satellite systems, high-altitude platforms, and other aerial solutions—are playing a transformative role in the evolution of wireless connectivity.
As of February 2025, satellite-based NTN is now no longer just a concept. Indeed, the wholesale telecommunications market for satellite partnerships alone is expected to reach $28 billion by 2030. Over the past few years, initial proof-of-concept trials have matured into pre-commercial and commercial services, addressing real-world needs across various industries. Emergency communication services, such as E911 and Wireless Emergency Alerts (WEA), have been among the earliest applications to leverage these capabilities, underscoring NTN’s importance in disaster response and public safety. Notably, during the 2024 hurricane season, direct-to-cell messaging provided critical connectivity when terrestrial networks were compromised.
NTN’s potential extends far beyond emergency scenarios. Remote and rural connectivity is a key use case, enabling broadband services for communities historically left behind by traditional network deployments. In maritime and aviation sectors, NTN offers new possibilities for consistent communication across oceans and air routes—essential for safety, logistics, and passenger connectivity. Emerging applications in the Internet of Things (IoT) further highlight NTN’s versatility, supporting asset tracking, smart agriculture, and infrastructure monitoring.
A significant focus of NTN development lies in enabling direct-to-device (D2D) connectivity. By leveraging existing mobile network spectrum and technologies, NTN solutions are making it possible for standard smartphones to connect via satellite without the need for specialized hardware. This approach simplifies user adoption and provides network operators with an effective means of addressing coverage gaps—particularly in areas where terrestrial network expansion is difficult or cost-prohibitive.
Achieving seamless integration between terrestrial and non-terrestrial networks hinges on several factors, with spectrum allocation and standardization leading the list. Regulators, including the Federal Communications Commission (FCC) and international bodies, are actively defining policies to manage spectrum usage and minimize interference. Efforts are focused on leveraging FR1 and Mobile Satellite Services (MSS) spectrum bands, with spectrum-sharing mechanisms such as carrier aggregation under exploration. Ensuring harmonious coexistence between NTN and terrestrial networks is critical for service continuity, especially as operators look to expand coverage into coastal waters and offshore platforms.
Standardization efforts, particularly through the 3rd Generation Partnership Project (3GPP), are laying the foundation for NTN integration into the broader 5G ecosystem. Release 17 has established the initial framework, with further advancements anticipated in Release 19, including improvements in satellite payloads, mobility management, and network slicing. These enhancements aim to support a wide range of services—from low-data-rate messaging to high-throughput broadband connections—while ensuring interoperability between different network components.
Public safety remains a driving force behind NTN adoption. Initiatives like FirstNet in the United States are evaluating how NTN can enhance coverage for first responders in rural and remote areas. During recent hurricanes, NTN-based messaging and alert systems proved invaluable, providing lifelines for affected communities when traditional infrastructure was unavailable. Expanding NTN capabilities to coastal regions and Exclusive Economic Zones (EEZs) further reinforces its role in supporting emergency services, maritime operations, and law enforcement.
Looking ahead, collaboration across the ecosystem will be essential to unlock NTN’s full potential. Operators, technology providers, device manufacturers, and regulatory bodies must work together to address the technical, operational, and regulatory challenges of integrating terrestrial and non-terrestrial networks. Establishing robust standards, ensuring spectrum availability, and aligning network architectures will be key steps in delivering scalable and reliable NTN solutions.
As the industry moves toward a future where terrestrial and non-terrestrial networks operate in concert, the promise of universal connectivity becomes more attainable. NTN’s ability to reach beyond traditional network boundaries offers a powerful tool for closing the digital divide, enhancing network resilience, and ensuring that no community is left without access to essential communications.
