Private LTE and CBRS Networks Are the Connectivity Infrastructure That Mining Operations Are Installing Underground

The Connectivity Problem That WiFi Could Not Solve Underground

Underground mining operations present some of the most technically demanding wireless connectivity environments in any industrial application. The confined geometry of mine tunnels and drifts, whose metallic rock walls reflect and absorb radio waves differently from the open-space propagation conditions that consumer cellular and WiFi systems are designed for, creates the multipath interference and coverage gap challenges that conventional wireless network design cannot address without the extensive infrastructure deployment that the kilometre-scale extents of modern underground mines require. WiFi, which has been the dominant underground communications technology for the past two decades, provides the data bandwidth that the IP-based communications that mine management systems use, but its coverage range in underground environments is limited to approximately 100 metres per access point in straight tunnel sections, requiring the dense access point deployment that cable infrastructure costs make prohibitively expensive to install and maintain across the full extent of a large underground mine whose development continuously extends its tunnelled footprint.

Private LTE and the US CBRS spectrum band's Citizens Broadband Radio Service whose three and a half gigahertz spectrum allocation provides licensed-lite access for private industrial networks have created the wireless connectivity infrastructure framework that mining companies are adopting as the replacement for or supplement to WiFi in underground environments where coverage range, mobility handoff, and quality of service management for the mission-critical communications that personnel safety, autonomous vehicle navigation, and real-time equipment monitoring require. The LTE radio protocol's superior coverage range in underground environments, where its lower frequency options including 700 and 900 megahertz bands penetrate deeper into rock and propagate further along tunnel geometries than WiFi's 2.4 and 5 gigahertz frequencies, combined with its managed quality of service whose voice and safety-critical data traffic prioritisation ensures that emergency communications maintain performance when the network is congested by data traffic, creates the commercial case for private LTE adoption in underground mining whose WiFi predecessor cannot match these operational requirements at equivalent infrastructure investment.

Nokia DAC and the Mining Network Standard

Nokia's Digital Automation Cloud platform, which provides the software-defined private LTE and 5G network infrastructure management that industrial private wireless network operators use to provision, monitor, and manage their network infrastructure, has been adopted by mining companies including Agnico Eagle, Newcrest, and Glencore for their underground private LTE deployments. Nokia's MX Industrial Edge and its AirScale indoor radio units whose compact form factor allows installation in mine development headings without the structural mounting that larger radio equipment requires create the underground mining private LTE commercial product that is defining the network infrastructure standard in the mining sector. The Nokia DAC platform's integration with the mine automation systems whose autonomous vehicle navigation, personnel tracking, and equipment monitoring create the network traffic whose prioritisation and quality of service management the LTE protocol enables creates the commercial network management product that positions Nokia as the private LTE standard for underground mining across multiple geographies and mining companies.

Ericsson's Industry Connect private wireless solution, whose LTE and 5G network products for industrial environments include underground mining configurations developed through deployments at BHP's Olympic Dam copper-uranium mine in Australia and other major underground operations, represents the competing telecommunications equipment vendor's mining private wireless commercial position. Ericsson's Dedicated Networks unit and its industry-specific network design expertise create the private wireless commercial offering that competes with Nokia DAC for the large underground mining operation deployments whose network scale and complexity require the enterprise-grade network management that consumer-grade private wireless solutions cannot provide. The competitive dynamic between Nokia and Ericsson in underground mining private LTE mirrors their competition in industrial 5G more broadly, with each company building reference installations in major mining operations whose published performance data and operational experience informs the network procurement decisions of other mining companies evaluating private wireless adoption.

Autonomous Mining and the Network Dependency

The commercial case for private LTE in underground mining is strengthened by the increasing deployment of autonomous and semi-autonomous mining equipment whose real-time communication requirements are incompatible with the coverage gaps and handoff latency that WiFi underground networks create. An autonomous underground load-haul-dump vehicle whose navigation, obstacle detection, and remote supervision systems require continuous low-latency communication with the surface control centre cannot safely operate in the coverage gaps that characterise typical underground WiFi deployments, whose access point spacing creates the dead zones whose network connectivity loss triggers the fail-safe stop that interrupts the autonomous cycle and eliminates the productivity gain that automation is intended to create. The private LTE network whose seamless coverage throughout the mine's active development areas and production zones, combined with the LTE protocol's handoff management that transfers the vehicle's network connection between base stations without the service interruption that WiFi roaming creates, enables the autonomous vehicle operation that justifies the private LTE infrastructure investment whose cost is evaluated against the productivity and safety improvement that automation delivers.

Top 10 Companies in Underground Mining Private Wireless Networks Globally

1. Nokia (Digital Automation Cloud): Finnish telecommunications company with DAC private LTE and 5G platform for industrial and mining applications; its underground mining deployments at Agnico Eagle, Newcrest, and Glencore and its AirScale indoor radio units for tunnel environments create the commercial underground mining private wireless standard that the most mine deployments globally have adopted.
2. Ericsson (Industry Connect): Swedish telecommunications company with Dedicated Networks private LTE and 5G for industrial environments including underground mining; its BHP Olympic Dam deployment and its Dedicated Networks unit's mining sector expertise create the competing commercial private wireless offer whose enterprise-grade network management serves the largest underground mining operations.
3. Rajant Corporation: US industrial wireless network company with Kinetic Mesh wireless networking for underground mining; its multi-radio mesh network whose nodes maintain connectivity with all adjacent nodes simultaneously creates the redundant wireless topology that underground mining safety systems require, whose mesh architecture provides the network resilience that LTE's base-station-dependent architecture cannot achieve in environments where infrastructure damage from blasting and mining activity is a routine operational event.
4. Cisco: US networking company with industrial wireless LAN and private cellular solutions for mining and industrial environments; its Ultra-Reliable Wireless Backhaul and its Catalyst industrial wireless access points create the enterprise networking company's industrial wireless position whose integration with mine-wide networking and cybersecurity infrastructure serves the IT-OT convergence requirements of digitally transforming mining operations.
5. BEC Technologies: Taiwanese wireless equipment company with CBRS private LTE base stations for industrial and mining applications; its cost-competitive CBRS radio equipment and its underground mining installation capability create the private LTE infrastructure supplier for mining operations whose capital cost constraints favour equipment that achieves the required technical performance at lower hardware cost than the premium telecommunications vendor products.
6. CommScope: US network infrastructure company with leaky feeder radiating cable systems for underground mining communications alongside private LTE; its ERA leaky feeder systems and its private wireless transition strategy create the underground communications infrastructure company whose installed leaky feeder base is the legacy system that private LTE is progressively supplementing and replacing in underground mining operations.
7. Hitachi: Japanese technology company with private wireless network integration for smart mining and underground operations; its Lumada IoT platform and its mining automation integration create the Japanese industrial technology company's underground mining connectivity commercial position whose automation platform integration differentiates it from pure-play wireless infrastructure vendors.
8. ST Engineering iDirect: Singapore technology company with satellite and private wireless backhaul for remote mining operations; its satellite-LTE hybrid network for mining operations in remote locations where terrestrial backhaul is unavailable creates the complete connectivity solution for the mining operations whose underground private LTE network requires satellite backhaul to connect the mine site to the corporate network.
9. Exelius Wireless: Mining industry specialist wireless company with underground CBRS LTE deployment capability; its mining-specific network design and installation expertise and its underground radio propagation modelling create the specialist contractor that mining operations use for the detailed engineering and implementation of private LTE networks whose underground environment requires application-specific expertise beyond generic LTE network deployment experience.
10. Telstra Purple: Australian telecommunications company with private wireless network managed services for Australian mining operations; its managed private LTE service model and its Australian mining sector relationships create the telecommunications carrier's mining private wireless offering whose managed service approach reduces the operational complexity of private wireless network management for mining companies whose IT organisations prefer to outsource network operations to a managed service provider.