Hrvatski Telekom Deploys Standalone 5G Private Networks at Three Croatian Airports, Showcasing Critical Infrastructure Blueprint

According to an announcement from Deutsche Telekom Group, its Croatian subsidiary Hrvatski Telekom has commenced the deployment of standalone 5G private networks at three major Croatian airports: Zagreb, Zadar, and Pula. This initiative, branded “NextGen 5G Airports,” is a flagship project partially funded by the European Union’s Connecting Europe Facility (CEF) Digital program, with a total investment of 7.5 million euros. The deployment represents a significant step in validating the technical and commercial model for 5G SA in high-stakes, mission-critical environments, moving beyond pilot phases into operational integration for airside safety, AI-driven analytics, and real-time ground coordination.

Technical Architecture and Deployment Scope of the “NextGen 5G Airports” Project

The core of Hrvatski Telekom’s deployment is a dedicated, on-premise 5G Standalone (SA) private network infrastructure. Unlike non-standalone (NSA) networks that rely on a 4G core, the SA architecture provides a fully isolated network slice with ultra-low latency, guaranteed bandwidth, and enhanced security—non-negotiable requirements for airport operations. The network utilizes dedicated spectrum, likely within the 3.5 GHz range allocated for private networks in Europe, ensuring no interference from public mobile traffic.

The physical rollout involves installing 5G radio units (RUs), distributed units (DUs), and centralized units (CUs) across critical airport zones: runways, taxiways, aprons, perimeter fencing, and baggage handling areas. A key technical component is the integration of Multi-access Edge Computing (MEC) nodes directly at the airport sites. This edge infrastructure is crucial for processing data from a suite of connected devices in real-time, including:

• Autonomous Airside Inspection Vehicles: Equipped with high-definition cameras and LiDAR sensors, these vehicles continuously patrol runways and taxiways, transmitting vast data streams to edge servers for immediate AI analysis to detect Foreign Object Debris (FOD), pavement cracks, or wildlife intrusions.
• Fixed and Pan-Tilt-Zoom (PTZ) Surveillance Cameras: Enhanced with AI-video analytics for perimeter security, monitoring restricted areas, and analyzing crowd flow in terminals.
• IoT Sensors on Ground Support Equipment (GSE): Real-time tracking of baggage carts, fuel trucks, and aircraft tow tractors to optimize logistics, prevent collisions, and reduce aircraft turnaround times.
• Wearable Devices for Staff: Enabling secure, high-quality voice and video communication for maintenance crews, security personnel, and ground handlers in high-noise environments.

The project timeline, backed by EU CEF Digital funding, targets full operational capability across all three airports by the end of 2026. This coordinated, multi-airport deployment serves as a scalable template for other European transport hubs.

Strategic Impact on Telecom Operators and the Private Network Ecosystem

This deployment is a strategic case study for telecom operators globally, demonstrating how to transition from selling connectivity to becoming a mission-critical digital infrastructure partner. For Hrvatski Telekom (and by extension, Deutsche Telekom), the airports project creates a high-value, multi-year revenue stream beyond consumer ARPU. It encompasses network design, hardware deployment, software integration, ongoing managed services, and security operations.

For the broader telecom industry, the project validates several key trends:

• Public Funding as a Catalyst: The 7.5 million euro EU grant underscores how public investment in digital infrastructure is de-risking large-scale private network deployments for operators. This model is replicable across the EU and in other regions with similar digital sovereignty agendas.
• Vertical-Specific Solution Stacking: Operators must move beyond providing “dumb pipe” 5G. The value is in bundling the network with vertical-specific applications—AI analytics for FOD detection, real-time asset tracking software, and integrated security platforms. This requires deep partnerships with ISVs (Independent Software Vendors) and systems integrators.
• Network Slicing and Sovereignty: A private 5G SA network is the ultimate expression of a dedicated network slice. For critical national infrastructure like airports, the guarantee of data sovereignty and localized processing is a decisive competitive advantage over public cloud-based solutions, appealing to regulators and airport authorities.
• Competitive Landscape with Neutral Hosts: While MNOs like Hrvatski Telekom have an advantage with licensed spectrum and existing fiber backhaul, neutral host providers and specialized private network vendors are also targeting this space. This project raises the bar, requiring competitors to offer similar end-to-edge, fully managed service level agreements (SLAs).

The operational efficiencies promised to the airports—such as a projected 30% reduction in aircraft turnaround times through optimized GSE coordination—provide the tangible ROI that operators must quantify and contractually back to win such deals.

Implications for European and Global Critical Infrastructure Modernization

The Croatian airport project is not an isolated event but part of a concerted European push to modernize critical infrastructure with secure, EU-backed technology. It aligns with the EU’s Digital Decade targets and the “5G for Smart Communities” initiatives. The use of CEF Digital funding sets a precedent for other transport nodes—seaports, railway hubs, and major highway systems—across Central and Eastern Europe to pursue similar upgrades, creating a substantial pipeline for telecom vendors and operators.

For global markets, particularly in regions like the Middle East and Asia-Pacific where airport expansion is rapid, this deployment serves as a reference architecture. Airports in the UAE, Saudi Arabia, Singapore, and India are actively exploring private 5G for smart operations. The Croatian model demonstrates the integration points with existing airport operational systems (AODB, RMS) and highlights the importance of a single managed service provider to simplify complexity.

Furthermore, the focus on airside safety and AI analytics addresses universal aviation pain points. The data generated by the 5G-connected sensors creates a continuous feedback loop for predictive maintenance and safety management, potentially reducing insurance costs and improving regulatory compliance—arguments that resonate with airport boards worldwide.

Conclusion: The Runway for 5G’s Enterprise Future

Hrvatski Telekom’s deployment at Zagreb, Zadar, and Pula airports is a definitive signal that 5G’s enterprise and critical infrastructure phase is operational. It moves the technology from lab demonstrations and limited factory trials into environments where network failure is not an option. The success of this project, measured by uptime, security incidents prevented, and operational cost savings, will be closely watched by the entire telecom industry.

For network operators, the blueprint is clear: secure dedicated spectrum, invest in edge compute capabilities, forge deep vertical partnerships, and leverage public-private funding mechanisms. The race is on to become the digital backbone for the world’s ports, factories, utilities, and transport hubs. This Croatian initiative shows that the telecom operator that can deliver not just connectivity, but guaranteed performance, integrated intelligence, and sovereign data control, will capture the high-margin future of the industry.