Ultra-wideband positioning rules in the United States have stayed essentially frozen for more than two decades, and the FCC now wants to change that. PI North America and the omlox community have publicly endorsed the Commission's Notice of Proposed Rulemaking (NPRM) on UWB spectrum, arguing that modernized rules would remove a regulatory barrier that industrial deployers have worked around case by case for years.

The physics is straightforward. UWB radios transmit short, low-power pulses across a wide frequency band, and receivers derive position from time-of-flight measurements between tags and fixed anchors. That yields real-time location accuracy well beyond what BLE or Wi-Fi ranging can deliver indoors — which is exactly what mobile robots, cobots, and now humanoid robots need as they leave segregated automation cells and enter dynamic spaces shared with people, AGVs, and other machines.

Why the rules matter now

The FCC issued its original UWB framework in 2002, when the technology's industrial footprint was negligible. Since then, UWB has become a workhorse for tracking equipment, vehicles, robots, and personnel on factory floors and in warehouses, while the rules governing emission limits and deployment categories have not kept pace. According to PI North America, companies deploying proven applications have had to seek case-by-case regulatory waivers — an overhead that scales poorly across hundreds of sites.

The NPRM, in PI's reading, could open the door to broader industrial UWB deployment without those individual exemptions. The group did not publish specific power-mask or frequency-plan changes it expects; its endorsement rests on the direction of the proposal rather than particular technical parameters.

What omlox adds to the picture

omlox, PI's open location-tracking standard, provides the vendor-neutral layer that could make any rule change stick. It is designed to combine multiple locating and identification technologies depending on the application:

• UWB for highly accurate real-time positioning
• BLE and Wi-Fi for infrastructure-based locating
• GNSS for outdoor positioning
• RFID for identification and location events
• Camera- or SLAM-based systems for robots and vehicles

"Interoperability only works if the rules behind it are stable and well understood," said Matthias Joest of Flowgate — omlox president at Flowcate — in the announcement. "UWB, together with other technologies, can become part of a shared spatial infrastructure for the next generation of logistics and industrial automation. Physical AI, autonomous mobile systems, and humanoid robots need to understand and safely interact with the physical world around them."

Beyond the consumer iceberg

Michael Bowne, executive director of PI North America, framed the NPRM as bigger than the UWB use cases most people see daily — smartphone precision finding, keyless entry, and the like. "Modernizing the UWB framework is about more than the well-known UWB use-cases in the consumer world," Bowne said. "These applications are just the tip of the iceberg... But there remain the less-conspicuous applications: the hundreds of use-cases for UWB in industrial settings."

Those industrial use cases map directly onto safety functions. Accurate UWB positioning supports dynamic geofencing, proximity warning, collision avoidance, safe-zone monitoring, and contact tracing. Infrastructure-based positioning also complements a robot's onboard sensors, adding an independent spatial reference for the surrounding operating environment — useful redundancy when lidar or vision degrades in dust, glare, or occlusion.

The open question

The FCC has not finalized anything; an NPRM invites comment before rules change. For integrators and plant engineers, the practical question is what the final emission and deployment provisions will permit — and whether the adopted text eliminates the waiver process that has so far defined large-scale industrial UWB rollout in the US.