Latest / The 5G Podcast with Fexingo: Wireless Networks, Carriers, and Mobile Infrastructure / How 5G Is Unlocking the Autonomous Mine
Transcript
- Lucas: There's this idea that 5G is still searching for its killer app — the thing it does that 4G couldn't. And in most cities, that's a fair criticism. But there's one industry where 5G is already delivering measurable, million-dollar improvements, and it's not manufacturing or healthcare. It's mining. Luna: Mining? I mean, I've heard about autonomous haul trucks, but isn't that mostly done with Wi-Fi or LTE? Lucas: Good question. And yes, the big mining companies have been using automation for years. But the problem is that Wi-Fi and LTE weren't designed for the scale and harshness of a mine. Wi-Fi has range issues, especially in open pits that can be over a kilometer deep. LTE is better, but its latency is still around 30 to 50 milliseconds — too sluggish for real-time remote control of a truck that weighs 400 tons and is moving at 60 kilometers per hour. Luna: Right, because if there's a delay, the operator sees what happened half a second ago, not what's happening now. Lucas: Exactly. That half-second can mean a collision or a missed turn. So enter 5G. Specifically, private 5G networks deployed on-site. One of the best examples I've come across is at an iron-ore mine in the Pilbara region of Western Australia. The operator, Rio Tinto, has been running autonomous trucks for over a decade, but they recently upgraded one of their pits to a dedicated 5G network from a local infrastructure partner. Luna: What kind of improvement did they see? Lucas: The headline number that caught my attention: they reduced the cycle time for each haul truck by about 14 percent. Cycle time is how long it takes a truck to load up, drive to the crusher, dump the ore, and come back. That 14 percent translates to more trips per shift, which means more ore moved without buying new trucks. For a site that moves 50 million tons a year, that's a huge efficiency gain. Luna: Fourteen percent is big. And that's just trucks. What about other equipment? Lucas: The same network also handles drills, excavators, and even the conveyor belts. But the real game-changer is remote operation. With LTE, operators had to be on-site — in a control room maybe a few hundred meters away. With 5G's sub-10 millisecond latency, they can now run equipment from a control center in Perth, which is 1,200 kilometers south. That changes the labor equation completely. Luna: So you're not commuting to a remote mine site for two-week shifts anymore. You can live in the city and operate a drill from an office. Lucas: Exactly. And that's not just a lifestyle perk. Mining companies struggle to attract skilled operators to remote locations. If you can hire someone in a capital city and have them run a drill from a desk, your talent pool expands dramatically. Rio Tinto has said they're aiming for 'zero-entry' mines — fully autonomous, no people on site — and 5G is the enabler they've been waiting for. Luna: But is this replicable globally? Not every mine has the budget for a private 5G network. Lucas: Fair point. A private 5G setup isn't cheap — you're looking at multiple millions for the spectrum license, the small cells, the core network, and the integration. But here's the thing: the cost is coming down. And more importantly, the economics work best for the largest mines — those producing over 10 million tons a year. For smaller operations, there are now managed services where a telco like Nokia or Ericsson runs the network as a service. You pay per device or per ton. Luna: So it's almost like a utility. You don't buy the power plant, you buy the electricity. Lucas: Exactly that. And the mining industry is vast. According to the International Energy Agency, the global mining sector moves about 80 billion tons of material every year. Even a 1 percent efficiency gain across that volume is enormous. And we're seeing 5G deliver more than 1 percent in almost every deployment. Luna: I'm curious about the underground part. Open pits are one thing, but what about underground mines? I'd imagine signal propagation is a nightmare. Lucas: You're right, and that's actually where 5G has an edge over Wi-Fi. In underground tunnels, Wi-Fi signals bounce off the walls and degrade quickly. 5G, especially in the mid-band, can be shaped to follow the tunnel using beamforming. A mine in Canada — a copper-zinc operation — deployed 5G along a three-kilometer decline and got consistent coverage. They're now using it for remote-controlled loaders and ventilation-on-demand, which saves energy. Luna: Ventilation-on-demand — that's a big deal. Mines use massive fans to circulate air, and they run continuously even when no one's in that zone. If you can turn them off when the area is empty, you save a ton of electricity. Lucas: Exactly. The environmental angle is real too. Mining is energy-intensive, and anything that reduces power consumption helps with carbon targets. Plus, safer mines — fewer people exposed to rockfalls, dust, and heat. The long-term vision is that 5G enables a 'digital twin' of the entire mine, where every piece of equipment and every tunnel is mapped in real time. Luna: So you could simulate a blast or a new route before actually doing it. Lucas: Right. And that's where the data volumes get huge. A single autonomous haul truck generates about five terabytes of sensor data per day. Wi-Fi and LTE can't handle that backhaul. 5G's capacity and low latency make it feasible to upload that data to a cloud or edge server for analysis. That's how you get predictive maintenance — you know a bearing is failing before it seizes up and stops production. Luna: I want to push back a little. We're talking about the biggest miners — Rio Tinto, BHP, Vale. What about the thousands of small and medium mines around the world? Are they adopting 5G? Lucas: It's slower, but it's happening. In South Africa, for example, a platinum mine recently deployed a private 5G network from a local operator. They're using it for underground communication and tracking miners' locations. The key was that the 5G network cost about the same as a new Wi-Fi system, but with better performance. So the decision was easy. And there's a growing ecosystem of vendors offering pre-integrated 5G kits for mining. Luna: What about the spectrum? In the US, for example, there isn't dedicated spectrum for private industrial 5G. Companies have to use CBRS or lease from carriers. Lucas: That's a hurdle, but it's being addressed. In Europe, several countries have set aside 3.7 to 3.8 gigahertz for local industrial use. In Australia, the mining regulator has allocated a slice of the 3.6 gigahertz band specifically for mine-site private networks. So the regulatory environment is catching up. In the US, CBRS is usable, but it's shared, so you can't guarantee the same reliability as a dedicated license. Luna: Let's talk about the timeline. When do we see this becoming mainstream? Lucas: I think we're past the pilot phase. Most of the major miners have at least one 5G site in production. The next two years will be about scaling — rolling out from one pit to the entire mine complex. I'd expect by 2028 or 2029, a significant portion of the world's large-scale open-pit mines will have 5G coverage. Underground is slower, but the benefits are even greater there. Luna: And that's not just tech hype. The numbers are there. Lucas: Exactly. And honestly, if today's conversation about 5G in mining gave you something usable — even just one stat to mention in a meeting — then it was worth the time. If it was worth a coffee to you, the link to support the show is buy me a coffee dot com slash fexingo. That's buy me a coffee dot com slash fexingo. No pressure, just if you found it useful. Luna: Yeah, and it keeps these episodes ad-free, which we love. So thank you to anyone who chips in. Lucas: Alright, back to the mine. One more angle I want to touch on: the relationship between 5G and autonomous vehicles in mining is actually ahead of what we see on public roads. In a mine, the environment is controlled — no pedestrians, no traffic lights, no kids chasing a ball. So the safety case for autonomy is simpler. And with 5G, you can have a human operator supervising multiple vehicles remotely, rather than one per vehicle. Luna: So the mine becomes a testbed for the autonomous vehicle tech that might eventually reach highways. Lucas: Exactly. And that's already happening. Caterpillar, Komatsu, and Hitachi are all using 5G in their mining automation systems. The lessons they learn about latency, reliability, and redundancy will trickle down to their road-going autonomous programs. So in a way, mining is the proving ground for the future of mobility. Luna: I like that. So next time someone asks 'what's 5G good for?', you can say 'it's moving 80 billion tons of rock a year, and making it safer and cheaper'. Lucas: That's the line. And it's not an exaggeration. The data is there. Pilbara to Perth, Sudbury to Toronto, these are real production networks, not demos. Luna: Thanks, Lucas. Great episode.