ROBNEWS
AT&T and Ericsson showed that 5G cell towers can spot small drones at 300 400 feet, the band where most UAVs fly and ground sensors are thinnest.
Cell towers were never built to watch the sky. The signals they already broadcast are now being used to spot small drones at 300 to 400 feet, the band where most consumer and commercial UAVs fly and where ground-based radar is thinnest. AT&T and Ericsson showed a working version of that approach outside AT&T Stadium in Arlington, Texas, during the 2026 FIFA World Cup, and they are pitching it as one layer in a counter-drone stack rather than a replacement for radar.
The technical name is Integrated Sensing and Communication, or ISAC. The ITU-R has listed ISAC as one of the six core usage scenarios in the IMT-2030 framework, the formal 6G specification work that is not expected to be standardized until around 2029 or 2030. AT&T and Ericsson are running the same idea on the 5G gear that is already on the towers: three cellular sites in a multi-static arrangement with Ericsson Massive MIMO radios listening for the small RF reflections a drone body gives off as it moves through the coverage area. Multi-static means the same drone is seen from three different angles at once, which is what lets the system localize and track it without the drone needing to be connected to the network.
The drones in the demo were passive, unconnected objects, picked up purely by how they disturb the existing 5G signal field. An AI/ML classifier then separated the drone signature from cars, people, and other clutter. Once the system flagged a target, an Ericsson-piloted drone was dispatched to intercept what the companies described as a simulated hostile UAV. None of this was a counter-drone engagement against a real intruder. The flight took place in authorized airspace with a cooperative aircraft, and the FAA's World Cup restrictions already barred drone operations within a one-nautical-mile radius of stadiums up to 1,000 feet above ground level.
The 2026 World Cup was the first U.S.-hosted men's tournament in decades, and the FAA and local authorities treated the airspace accordingly. Per NBC 5 DFW reporting cited by IEEE ComSoc, U.S. authorities detected roughly 1,500 drones and confiscated more than 700 across World Cup venues, including 53 near AT&T Stadium, one of 11 U.S. venues that hosted matches. Those are the kinds of numbers that turn "drone detection" from a niche procurement problem into a public airspace-awareness question.
Akhil Gokul told DroneLife that ISAC lets operators "see" the air around a cell site without adding new hardware, the same radios, the same towers, the same backhaul. The pitch covers energy sites, nuclear plants, data centers, and high-value buildings alongside the obvious public-safety and defense use cases, and the longer-horizon play, an Amazon or Walmart drone-delivery network that has to know what is in its own airspace, is the one the carriers care about most.
A single sensing layer, even one as widely deployed as a cellular network, has limits. Radar works well against metal in clear air and poorly against small plastic frames in clutter. RF passive systems can be defeated by a drone that goes radio-silent. Optical and acoustic sensors are weather-bound. The consensus across the counter-UAS field is layered coverage: multiple sensing modalities, fused, so the failure modes of one do not become the failure mode of the whole. ISAC's value to that stack is its footprint. The 5G macro network already covers most of the populated United States. Adding sensing costs an upgrade to the radio software and the classification pipeline, not a new tower.
ISAC is officially a 6G usage scenario, and the AT&T/Ericsson framing, "a 6G capability on 5G today," is mostly about getting ahead of the IMT-2030 timeline rather than rewriting it. Treat the "5G becoming 6G" line as carrier marketing. The defensible technical claim is that the same physical layer that carries phone calls can also be used to sense non-connected objects in low-altitude airspace, and that the 2026 World Cup is the first time the U.S. has had to take that band seriously at scale.
What is not in the demo is the part that should be watched. There is no independent third-party validation of detection range, false-positive rate, or how the system behaves against a swarm. The multi-static 5G sensing mechanism is academically described and now vendor-demonstrated, but the operational numbers remain Ericsson-and-AT&T numbers. The next test is whether a counter-drone program at an energy site or a stadium buys it as a layer, and whether the FAA, DHS, or DoD publishes a benchmark that lets a buyer compare cellular sensing to radar on equal terms.