SnT at work for continuous connectivity

SnT researchers are working to tackle connectivity interruptions between terrestrial and satellite networks.

As we rely more on global connectivity, switching between networks without losing signal has become essential. Yet, handovers between satellite and terrestrial networks still pose technical challenges. That’s where SnT’s new project SHINE comes in.

Supported by ESA’s ARTES 4.0 programme and backed by the Luxembourg Space Agency (LSA), the SHINE project aims to improve 5G handovers between terrestrial and non-terrestrial networks.

A machine learning engine to tackle interruptions

Combining terrestrial and non-terrestrial 5G networks presents technical challenges. Devices must switch between network types without disruption. Handover success rates are critical, as they affect service availability.

Traditional triggers like signal strength and location often operate with limited data, uncertainty, and fast-changing conditions, particularly in satellite environments. The new machine learning (ML) tool aims to give 5G non-terrestrial networks the intelligence needed to improve performance.

It targets a handover success rate above 95%, while reducing both service interruptions and signalling overhead. The modular ML engine will be compatible with any hardware. Researchers from SnT’s SIGCOM group will test the system in lab conditions using commercial platforms. The objective: better handover decisions across satellite and terrestrial 5G networks.

SES as a strategic partner

SnT will develop a software-based testbed to simulate handovers and gather key performance indicators. The research team is collaborating with SES Luxembourg, a leading satellite operator, as a subcontractor. This partnership brings essential industry expertise to the project.

The end goal is not only to enhance 5G Non-Terrestrial Network (NTN) performance, but also to lay the groundwork for commercial rollout.

Eva Lagunas, the project’s principal investigator, said SHINE marks a major step forward in 5G-NTN research. “By exploring AI-assisted handover, we aim to provide smart solutions that minimise connectivity interruptions,” said Lagunas.

The project reinforces SnT’s leadership position in satellite-based 5G communications across Europe.

About SIGCOM:

SIGCOM conducts research aimed at designing, emulating, and testing new high-performance systems for the future of mobile and satellite communications. Its work spans 5G/6G telecommunications and satellite-based internet technologies.