Airspan and Space Compass unveil 5G HAPS for Maritime Domain Awareness
A new partnership aims to prove that 5G air-to-ground links from high-altitude platforms can deliver persistent coastal and open-ocean surveillance at scale.
Partnership details and system scope
Airspan plans to supply a 5G Air-to-Ground (ATG) system for Space Compass’s High-Altitude Platform Station (HAPS) program, using an aircraft operating around 16–18 km to act as a stratospheric node for maritime monitoring. The end-to-end solution—airborne radios and antennas, onboard 5G processing, and a complete ground-based 5G RAN, core, and management stack—targets secure command-and-control plus real-time sensor data exchange between the HAPS and ground stations up to roughly 300 km away. After lab and pre-flight work, the team intends to validate the system on a light aircraft in 2026, followed by stratospheric trials in 2027.
MDA demand drivers and mission needs
Maritime Domain Awareness (MDA) is under pressure as shipping lanes grow busier, “dark” vessel activity becomes more sophisticated, and coastal infrastructure expands. Operators and agencies need surveillance that is continuous, wide-area, and resilient to weather and coverage gaps. HAPS-based 5G promises an attractive middle ground between terrestrial networks and satellites: persistent regional coverage with lower latency than space links and greater reach than towers, delivered using commercial 5G components adapted for the stratosphere.
Stratospheric 5G ATG Architecture Overview
The system marries carrier-grade 5G with aeronautical constraints to maintain high-throughput, long-range links from tens of kilometers up.
ATG radio, beamforming, and coverage model
The proposed ATG link combines high-gain antennas with advanced beamforming to maintain 360-degree connectivity as the aircraft loiters. At 16–18 km, the platform can illuminate broad maritime areas, supporting persistent monitoring of shipping lanes and coastal zones. The 300 km ground link target implies carefully engineered link budgets, interference management, and mobility control to keep performance stable across large cells and dynamic sea conditions.
Airborne–ground integration and 5G SA features
Airspan’s package integrates airborne radios and onboard 5G processing with a ground RAN, a 5G core, and management tooling optimized for size, weight, power, and thermal demands. Expect tight orchestration between the onboard edge and the ground core for tasks such as mission telemetry, health monitoring, and prioritization of sensor feeds. The platform design lends itself to 5G Standalone features—network slicing for mission segregation, deterministic QoS for command-and-control, and enhanced security—while leveraging Open RAN building blocks where appropriate to improve flexibility and supply chain diversity.
Mission resilience, encryption, and zero-trust security
Mission networks for MDA must tolerate weather, link interruptions, and adversarial conditions. A stratospheric node above most weather improves line-of-sight and reduces blockage risk, while multi-beam designs and redundant ground stations can add failover paths. End-to-end encryption, secure boot, and hardened management interfaces are table stakes for protecting command-and-control and sensitive sensor data. Integration with terrestrial and satellite backhaul provides additional resilience for beyond-coast operations.
Operational benefits for maritime surveillance
Stratospheric 5G can compress decision timelines for defense, safety, and environmental missions by moving data faster and closer to where it is needed.
Maritime use cases and edge data flows
Key applications include continuous AIS and radar augmentation, dark vessel detection, search and rescue support, illegal fishing monitoring, and protection of offshore energy assets. With edge processing aboard the aircraft, the system can pre-filter imagery and sensor outputs to send only high-value events over constrained links, cutting backhaul demand and latency to command centers. Real-time uplinks enable retasking of sensors, dynamic geofencing, and coordination with maritime patrol assets.
Coverage constraints and architecture trade-offs
The stated 300 km ground reach suits coastal arcs, chokepoints, and EEZ boundaries where ground stations are feasible. For blue-water missions, operators will likely blend HAPS ATG with satellite feeder links or distributed coastal gateways to extend coverage. Persistence targets will depend on aircraft endurance and fleet rotation; continuous coverage typically requires multiple platforms and intelligent handover to keep surveillance uninterrupted.
HAPS–5G market landscape and ecosystem
The initiative sits at the intersection of HAPS, 5G evolution, and a growing need for sovereign, resilient maritime sensing.
Competitive programs and industry alliances
HAPS has re-emerged as a credible layer in non-terrestrial networks, with programs exploring stratospheric aircraft, airships, and balloon systems. Companies pursuing high-altitude connectivity and sensing include platforms and integrators working on solar-electric aircraft and high-altitude aerostats. Industry collaboration forums such as the HAPS Alliance are pushing reference architectures and ecosystem maturity. Airspan brings 5G RAN and ATG expertise, while Space Compass advances the mission and platform strategy focused on stratospheric services.
5G NTN standards, spectrum coordination, and regulation
5G standards continue to add non-terrestrial and mission-critical capabilities that are relevant to HAPS deployments, while regulatory frameworks define how stratospheric platforms share spectrum and airspace across borders. Operators will need to plan spectrum coordination for long-range cells over water, ensure compliance with aviation safety rules, and align with maritime authorities on data governance and service-level expectations.
Roadmap, trials, and KPIs to watch
The program outlines a staged path from lab validation to flight trials, with several technical and operational checkpoints.
Phased testing plan and performance KPIs
Following lab and pre-flight work, a light aircraft campaign in 2026 should validate radios, beam control, mobility, and interference management under real flight dynamics. Stratospheric trials in 2027 will pressure-test link budgets, coverage uniformity, and endurance. KPIs to track include sustained throughput per link, round-trip latency for command-and-control, availability across full 360-degree operation, handover stability to multiple ground sites, and energy/thermal performance over long sorties.
Next steps for operators, agencies, and enterprises
Map MDA gaps and prioritize coastal corridors where HAPS can augment radars and satellite data; engage in pilots to define SLAs, coverage targets, and integration points with existing C2 and data lakes; plan spectrum and regulatory pathways early with telecom and aviation authorities; adopt 5G SA cores with network slicing and strong Zero Trust postures for mission segregation; design multi-layer resilience using terrestrial, HAPS, and satellite backhaul; and align procurement on SWaP, security, and lifecycle support for stratospheric platforms.
Strategic takeaways for telecom and edge leaders
This partnership advances a practical blueprint for stratospheric 5G in maritime surveillance, combining ATG radios, onboard edge, and a full 5G core to deliver persistent coastal coverage. The approach complements terrestrial and satellite networks, targeting lower latency and higher revisit over regional waters. Success depends on end-to-end optimization for SWaP and security, robust spectrum and regulatory planning, and integration into mission workflows. If flight trials hit their marks in 2026–2027, HAPS-enabled 5G could become a standard layer in MDA architectures for defense, public safety, and critical infrastructure operators.
