A significant demonstration in Arlington, Texas, has showcased how existing 5G cellular infrastructure can be repurposed for advanced airspace security. AT&T and Ericsson successfully demonstrated that standard 5G cell towers, without additional hardware, can detect and continuously track multiple drones in real-time. This capability, achieved through software-layered Integrated Sensing and Communication (ISAC), marks a pivotal step in leveraging ubiquitous wireless networks for broader security applications, though the legal challenges of acting on these detections remain complex.
5G Towers as Drone Detectors
The core of this new capability lies in a mechanism called multistatic sensing. Instead of a single radar unit, Ericsson configured three synchronized 5G tower sites near AT&T Stadium to function as a coordinated network. One tower transmits a signal, while the others listen for reflections bouncing off objects in the air. This networked approach enhances accuracy and provides overlapping views of the airspace.
A key advantage of this system is its ability to detect passive objects. Drones do not need to carry any electronic device or transmitter for detection; the system can spot a drone with its radio off, or even a vehicle or person on foot. It provides data on location, velocity, elevation, and an AI-generated classification with a confidence score. This means coverage is determined by the existing tower placement, not by the target's cooperation, offering a meaningfully different capability compared to current cell-based drone-location services that require a drone to be actively broadcasting.
The Real-World Drone Threat
The urgency for enhanced drone detection systems is underscored by real-world incidents. The demonstration itself was staged for an audience including dozens of federal, state, and local law enforcement agencies, and even detected a real, unscheduled drone approaching the stadium during the event.
Authorities have reported a significant number of drone incursions at major events. FBI Dallas agents, for instance, have seized 53 drones during the eight World Cup matches held at AT&T Stadium so far. Nationally, the White House's FIFA World Cup Task Force reported nearly 1,500 drone detections and over 700 mitigations across the tournament as of the demonstration date. These figures highlight the persistent challenge of unauthorized drone activity and the need for robust detection systems.
The Legal Landscape: Detection vs. Mitigation
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While the technological leap in drone detection is impressive, the legal framework for acting on these detections is still evolving. The AT&T and Ericsson system is designed to deliver fused sensing data to third parties, who can then combine it with their own radar, camera feeds, and other sources. However, turning a detected drone into a grounded one is left entirely to whoever receives that data, and under current federal law, the list of entities legally authorized to do so is very short.
Detection and mitigation are governed by entirely different rules. The SAFER SKIES Act, signed into law in December 2025, made progress by allowing trained and certified state and local law enforcement to support counter-UAS (unmanned aerial system) operations at major public events. Prior to this, only federal agencies could legally intercept or neutralize a drone. However, broader mitigation authorities for the Department of Justice (DOJ) and Department of Homeland Security (DHS) actually lapsed at the end of September 2025 due to a failure by Congress to renew them, leaving these departments without clear standing legal authority to disable a drone outside specific carve-outs, such as those written for the World Cup. A pending bill, the DEFENSE Act, aims to extend counter-drone authority to state and local law enforcement for regular-season games and other events that do not receive federal security details.
Implications for Field Crews and Site Security
For tower climbers, crew leads, and safety managers in the wireless infrastructure and construction industries, these developments have important implications. As 5G networks expand and evolve, the towers themselves are becoming more than just communication hubs; they are potential components of a vast, integrated security and sensing network.
- Increased Airspace Awareness: Field crews working on or near 5G towers, particularly those in urban areas or close to critical infrastructure and event venues, should be aware that their work environment's airspace may be under constant, sophisticated surveillance. This heightened awareness can contribute to overall site security.
- Reporting Suspicious Activity: While tower crews are not responsible for drone mitigation, understanding that unauthorized drones can be detected by the very infrastructure they maintain reinforces the importance of reporting any suspicious or unauthorized aerial activity around their worksites to site security or relevant authorities.
- Evolving Site Security Protocols: Crew leads and safety managers should consider how these advanced detection capabilities might integrate with or influence existing site security protocols. Early detection data could provide valuable lead time for security personnel to respond to potential threats, even if direct mitigation capabilities are limited to specific authorized agencies.
- Understanding Regulatory Shifts: The dynamic nature of drone regulations and counter-UAS authorities, as evidenced by the SAFER SKIES Act and the pending DEFENSE Act, means that the legal landscape around drone operations and interventions is constantly changing. Staying informed about these shifts can be crucial for planning operations, especially near sensitive sites or during major public events where airspace restrictions may be in effect.
This demonstration highlights a future where the infrastructure supporting our communications networks also plays a critical role in maintaining airspace security, creating a more monitored and potentially safer environment around valuable assets and public gatherings.