Satellites and smartphones are beginning to speak the same language, marking a new phase in the race to connect every corner of the planet. Direct-to-device (D2D), a once-niche capability, is becoming a catalyst for universal connectivity as space and telecommunications converge. The concept is simple yet revolutionary: instead of using relay stations or terrestrial towers, a regular smartphone or other modern cellular device can communicate directly with a satellite.
This concept is not new as satellite phones have been using it for a long time, but accessibility and scale are rapidly evolving. What was once limited to bulky satellite phones is now accessible to everyday users thanks to advancements in smartphone technology and satellite constellations. Communication can now be extended to smartphones, vehicles, and IoT systems, even beyond the reach of traditional networks. For consumers, this means they will no longer experience connectivity dead zones. For industries and governments, it creates new opportunities for emergency response, defense, and logistics.
The GSMA has highlighted this shift through its work on non-terrestrial networks (NTNs) within 5G standards, enabling satellites to operate as an integral part of mobile networks rather than standalone systems. This integration is key to enabling seamless roaming between terrestrial and satellite coverage, ensuring continuous, uninterrupted connectivity as users move beyond network boundaries.
Supporting this vision, the 3rd Generation Partnership Project (3GPP) has standardized NTNs in their Release 17. By addressing technical issues such as latency, Doppler effects, and spectrum efficiency, the initiative outlines how satellite networks can work with existing mobile architectures to improve network resilience in urban settings, support maritime and aviation communications, and provide reliable coverage to underserved and remote areas. This represents a pivotal step toward a unified global framework that supports both terrestrial and space-based communications.
The industry is now seeing significant advancements as a result. Lynk Global and Omnispace announced plans to merge, combining Omnispace’s S-band spectrum with Lynk’s satellite technology to promote global D2D connectivity. SES is supporting this effort by providing its ground infrastructure and multi-orbit satellite network. This partnership demonstrates how technology, spectrum, and infrastructure partners’ alignment is essential to scaling D2D services worldwide.
As integration advances, D2D is expected to become a defining layer of the global communications ecosystems, one that connects terrestrial and NTNs to deliver truly ubiquitous coverage. By embedding satellite connectivity into the broader 5G and future 6G frameworks, industry is building a more resilient, interoperable infrastructure that benefits both people and machines, everywhere.
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