As 5G continues its global rollout—now reaching roughly half of the population—the industry has already turned its attention to what comes next. Day 3 focused on the practical evolution from 5G to 6G, viewed through the lens of operators, standardization bodies, and real-world deployment challenges.

1. Where We Are Today: 5G in Context

• 5G is midway through deployment, with uneven coverage across urban and rural regions.
• Network design has evolved from coverage-first (1G–3G) to capacity and latency-driven (4G–5G).
• The smartphone revolution dramatically increased transaction volumes, forcing operators to redesign networks for scale and reliability.

2. Why 6G Is Already Necessary

• 6G development must start early due to long standardization and deployment cycles.
• A customer- and use-case-led approach is essential to avoid repeating past inefficiencies.
• Emerging services demand ubiquitous connectivity, extreme reliability, and AI-driven intelligence—beyond what 5G can sustainably deliver.

3. Role of ITU and Global Standardization

• ITU’s IMT-2030 framework defines the aspirations for 6G, including:
  • New spectrum allocation
  • Integrated terrestrial and non-terrestrial networks
  • AI-native architectures
• Standardization is a multi-year, multi-stakeholder effort, heavily dependent on vendors and academia.

4. AI as a Core Network Capability

• AI is moving from optimization tools to foundational network intelligence.
• Key focus areas:
  • Network automation and self-healing
  • Customer experience management
  • Resource optimization across heterogeneous networks
• GPU-powered data centers are becoming critical infrastructure for AI-native networks.

5. Coverage and Ubiquitous Connectivity Challenges

• Outdoor and rural coverage remains a major gap.
• Solutions include:
  • Integration of LEO satellite constellations
  • Hybrid terrestrial–non-terrestrial architectures
  • Shared infrastructure initiatives such as rural networks
• True 6G success depends on connectivity everywhere, not just higher speeds.

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6. O-RAN and Open Ecosystems

• O-RAN introduces flexibility, interoperability, and vendor diversity.
• A key debate emerges:
  • Does AI enable O-RAN?
  • Or does O-RAN enable scalable AI deployment?
• Early deployments (e.g., Virgin Media O2) show promise but also highlight integration complexity.

7. Trials, Use Cases, and Ecosystem Development

• Trials are increasingly market-driven, not technology-driven.
• Focus areas include:
  • Autonomous vehicles and drones
  • IoT at scale
  • Security, resilience, and sustainability
• Collaboration between operators, universities, and vendors is essential for innovation.

8. Trustworthy and Sustainable AI

• AI must be:
  • Transparent
  • Energy-efficient
  • Aligned with regulatory and ethical frameworks
• GPU power consumption and data center sustainability are emerging constraints that must be addressed early.

Key Takeaway

6G will not arrive as a sudden leap—it will be a gradual evolution, blending AI, open architectures, satellite connectivity, and sustainability into a unified, intelligent network fabric.