Overview

Underground communications infrastructure is now central to modern mining – powering
everything from autonomous operations to real-time safety systems. Yet, the underground
environment continues to expose technical limitations and implementation gaps. This
summary captures key insights from a GMG Underground Communications Infrastructure
workshop that brought together multiple mining companies and technology experts to
share what’s working, what’s not, and where collaborative innovation is most needed to
move underground communications forward.

1. What’s Working / What’s Not

• Underground Design Constraints: The workshop highlighted significant practical
  limitations imposed by the underground mining environment that affect
  communications system design and implementation, creating unique deployment
  challenges unlike surface applications.
• Vendor Information Challenges: Participants noted concerns about biased or
  unreliable information provided by communications product vendors, making it
  difficult to evaluate solutions objectively.
• Implementation Challenges: A lack of proven templated patterns and insufficient
  collaboration between system implementers was identified as a barrier to
  successful deployment.
• Maintenance Bottlenecks: The group emphasized that maintenance remains
  problematic due to insufficient numbers of trained personnel who can support
  complex underground communications systems.
• Wi-Fi Performance Issues: While Wi-Fi works, teams struggle with roaming
  capabilities and throughput requirements as application demands increase.
• Connection Continuity Problems: Teams struggle with handover between different
  underground zones, resulting in crews losing connection during movement.
• Budget Allocation: Extending communications infrastructure underground faces
  ongoing budget constraints that limit comprehensive coverage.
• Contractor Ownership Issues: It was noted that mine contractors often aren’t
  responsible for maintaining communications infrastructure, creating accountability
  gaps.
• Mixed Effectiveness by Area: Systems work well in production areas (providing
  higher ROI) but perform poorly in development faces and areas (with lower ROI),
  especially when moving deeper

2. Must-Have Applications and Capabilities

These applications highlight the current functional requirements of underground
operations, driven by the need for automation, safety, optimization, and mobile field
support:

Application Area and Specific Needs

Remote Operations: Tele-remote control, zero entry mining

Real-time Systems: Production data, short interval control, asset health
monitoring

Mobility: In-field smartphone apps for inspections and data entry

Automation: Loader automation during shift changes, traffic management
systems

Equipment Management: BEV optimization, integration of mixed fleets

Infrastructure Control: Ventilation on demand, dewatering systems

3. Big Question and Future Needs

Participants explored longer-term considerations that the industry must address:

Theme and Future-Focused Needs and Questions 

Architecture Concerns: Scalability, vendor-neutral design, keeping pace with
technology

Security Issues: Cybersecurity risks, integration with enterprise systems

Emerging Technologies: AI/GenAI, drones, camera-based positioning and mapping

Implementation Challenges: System simplicity needs, power constraints, mining methodspecific guidelines

Industry Limitations: Small market size affecting technology development, higher
security requirements, connectivity to mining faces

4. Conclusion

The workshop revealed that while many underground sites have achieved basic connectivity success, the increasing demands of automation, electrification, and datadriven decision-making are quickly outpacing current capabilities. Addressing these gaps requires coordinated industry action, investment in scalable infrastructure, and open
collaboration on standards and best practices.