Latest / The 5G Podcast with Fexingo: Wireless Networks, Carriers, and Mobile Infrastructure / How 5G Is Quietly Reshaping the Drone Industry
Transcript
- Lucas: So there's this moment from a few weeks ago that I think really frames where 5G and drones are headed. The FAA granted a waiver to a company called American Robotics — they're now allowed to fly drones beyond visual line of sight using cellular networks, no human observer needed. That's a first in the US. Luna: And that waiver is huge because up until now, most commercial drone flights required either a human spotter or a ground-based radar system. Cellular connectivity changes the economics entirely. Lucas: Exactly. The waiver specifically allows flights over rural areas for agricultural monitoring and pipeline inspection. The drone connects via standard 4G and 5G networks, streams HD video back to a remote pilot, and can fly routes miles long without anyone on site. Luna: What's the latency like? Because for beyond line of sight, you need near-instant control response. One second of lag could mean a crash. Lucas: That's where 5G network slicing comes in. The drone operators are reserving a dedicated slice of the network with guaranteed low latency — under 50 milliseconds round trip. With 5G standalone networks, that slice is isolated from consumer traffic. So even if the local cell tower is congested with people streaming video, the drone's control link stays rock solid. Luna: So the network itself becomes part of the safety system. That's a shift from Wi-Fi-based drones where you're competing with everything on the same frequency. Lucas: Right. And the energy company I mentioned — one of the major pipeline operators — they've been testing this for about eighteen months. They replaced a fleet of manned helicopters with three 5G-connected drones. The drones fly pipeline corridors at low altitude, about 150 feet, scanning for leaks or encroachments. They transmit thermal and visual data in real time to a central operations center. Luna: And the cost comparison? Helicopter hours are expensive. Lucas: They told me it's about a seventy percent reduction in inspection cost per mile. The drones can fly longer because they're not limited by fuel or pilot fatigue. And they can fly in weather that would ground a helicopter — light rain, wind up to 25 knots. Luna: But there's still the question of coverage. Cell towers are designed for ground level, not for an aircraft at 150 feet. How well does the signal actually work? Lucas: That's the engineering challenge. Standard cell antennas are tilted downward to cover streets and buildings. For drones, the antenna pattern creates a weak spot — literally a cone above the tower where the signal drops. Operators are working with carriers to adjust antenna tilts or add small cells specifically for low-altitude coverage. The FAA waiver requires proof that the network provides reliable coverage along the entire flight path. Luna: So the carriers are becoming de facto infrastructure providers for drone operations. That's a new revenue stream for them. Lucas: Absolutely. And it's not just rural pipelines. Think about logistics — a company like Zipline already uses dedicated 4G networks for medical drone deliveries in Rwanda and Ghana. They're starting to test 5G for urban routes where latency and reliability are even more critical. Luna: Speaking of the economics, this feels like a good moment to mention how this show stays going. A handful of listeners chip in monthly through buy me a coffee dot com slash fexingo, and that's literally what funds making this many of these episodes. Lucas: It's true. No ads, no sponsors — just people who find the topic useful enough to throw a few bucks at keeping the thing ad-free. It's a small group, but it's enough. Luna: So if today's tech conversation gave you something usable, that's the reason to consider joining them. No pressure, just the reality of how independent shows work. Lucas: Back to drones. The FAA waiver also mandates that the drone must have a 'detect and avoid' capability — it needs to sense other aircraft and avoid them automatically. That's where 5G's low latency helps again, because the drone can share its position with air traffic management systems in near real time. Luna: So we're moving toward a future where drones are essentially nodes on a 5G network, constantly broadcasting their location and receiving updates. That's a kind of drone traffic management system. Lucas: Exactly. The industry calls it UTM — Unmanned Traffic Management. Companies like Nokia and Ericsson are working on 5G-based UTM solutions that handle hundreds of drones per square kilometer. This is the same kind of problem as autonomous cars, but in three dimensions and at lower altitudes. Luna: What about the drone itself? Does 5G change the hardware requirements? Lucas: It does. Traditional drones use a radio controller on the 2.4 gigahertz band, which has limited range — maybe a few kilometers. With 5G, the drone just needs a cellular modem and a SIM card. That's it. The control and video feed travel over the mobile network. The drone doesn't need a dedicated ground station. That simplifies the drone design significantly. Luna: So the barrier to entry drops. Any drone with a 5G modem can potentially fly beyond line of sight, as long as the carrier coverage and regulatory approvals are in place. Lucas: Right. And we're seeing chipmakers like Qualcomm release reference designs for 5G drone modules. They combine the cellular modem with a GPS receiver and a flight controller. The whole module is about the size of a credit card. In volume, it adds maybe 50 dollars to the bill of materials. Luna: That's almost negligible for a commercial drone that costs several thousand dollars. So the adoption curve could be steep. Lucas: One area where it's already happening is agriculture. In Japan, for example, rice farmers are using 5G-connected drones to spray pesticides. The drones fly pre-programmed routes over terraced fields, and the farmer monitors from a tablet at home. Network slicing ensures the control link isn't interrupted by other traffic. Luna: And that's a country with an aging farming population. The drone becomes a labor multiplier. Lucas: Exactly. The same dynamic applies to construction site surveying, bridge inspection, even offshore wind turbine maintenance. Any task that requires a human to be in a dangerous location can potentially be handled by a 5G drone. Luna: What about security? If a drone's control link is over a public network, can it be hacked? Lucas: That's a real concern. The 3GPP standards for 5G include sim based authentication and encryption. The drone's SIM is provisioned specifically for that device, and the network slice is isolated. But if someone compromises the carrier's core network, the drone could be vulnerable. Operators are deploying private 5G networks for high-security applications — like military bases or critical infrastructure — where the entire network is on-premises. Luna: So we have a spectrum: from public 5G for agricultural drones all the way to private 5G for defense. And the same core technology scales across that range. Lucas: That's the promise. And I think we're only at the beginning. A lot of the regulatory framework is still being written. The FAA is expected to finalize rules for beyond visual line of sight flights by early 2027. The European Union Aviation Safety Agency already has a framework in place. So the next two years will be pivotal. Luna: Let me ask a forward-looking question. With 5G Advanced — sometimes called 5.5G — what new capabilities come to drones? Lucas: Great question. 5G Advanced includes features like improved positioning accuracy — down to tens of centimeters using carrier phase measurements. That means the drone can navigate precisely without relying solely on GPS, which can be jammed or spoofed. Also, 5G Advanced supports more efficient multicast, so one command can simultaneously update a whole swarm of drones. That's critical for applications like drone light shows or coordinated package delivery. Luna: So the network becomes the nervous system for the drone. Not just a pipe. Lucas: Exactly. And that's the bigger point — 5G isn't just faster internet for your phone. It's enabling an entirely new class of autonomous machines. Drones are just the most visible example. Luna: It's a real shift from where we were even three years ago. I remember covering drone deliveries and the big hurdle was always the control link range. Lucas: Right. And now that hurdle is essentially removed by the cellular network. The remaining questions are regulatory and operational. But technically, the pieces are in place. Luna: So next time we see a drone flying overhead, it might not just be a hobbyist. It could be a 5G-connected robot doing real work. Lucas: And that's happening faster than most people realize.