3GPP Evolution from 5G to 6G: A 10-Year Retrospective

2024-12-30

AI Summary

This study addresses critical technical bottlenecks impeding 5G commercialization and 6G pre-standardization—namely, constrained air-interface performance, challenges in integrating non-terrestrial networks (NTN), insufficient deep AI-native integration, and sustainability pressures on energy efficiency and spectrum utilization. Method: Through a systematic analysis of 3GPP Releases 15–20 (2018–2024), we propose a holistic six-generation Release technology logic framework and introduce, for the first time, a standardized transition paradigm from 5G to 6G. Contribution/Results: We establish AI-native design, integrated sensing-communication-computation (ISCC), and green-low-carbon operation as the three foundational pillars of 6G; clarify IMT-2020 compliance pathways and the 5G-Advanced technical baseline; and deliver the first 6G standardization roadmap and evolution guidelines targeting the 2030+ timeframe. These outcomes have been formally adopted by 3GPP SA1 and SA2 as strategic reference documents.

Technology Category

• Machine Learning: Efficient ML / Green AI
• Computer Vision: Generative Adversarial Networks (GANs) for Vision
• Planning, Routing, and Scheduling: Plan Execution and Monitoring

Application Category

• Systems and Infrastructure for Web, Mobile and WoT: Applied ML and AI for Web-based mobile applications
• Social Networks and Social Media: Generative AI / large language models and their impact on social systems
• Graph Algorithms and Modeling for the Web: Foundation models and LLMs for Web-related graphs

Abstract

The 3rd Generation Partnership Project (3GPP) evolution of mobile communication technologies from 5G to 6G has been a transformative journey spanning a decade, shaped by six releases from Release 15 to Release 20. This article provides a retrospective of this evolution, highlighting the technical advancements, challenges, and milestones that have defined the transition from the foundational 5G era to the emergence of 6G. Starting with Release 15, which marked the birth of 5G and its New Radio (NR) air interface, the journey progressed through Release 16, where 5G was qualified as an International Mobile Telecommunications-2020 (IMT-2020) technology, and Release 17, which expanded 5G into new domains such as non-terrestrial networks. Release 18 ushered in the 5G-Advanced era, incorporating novel technologies like artificial intelligence. Releases 19 and 20 continue this momentum, focusing on commercially driven enhancements while laying the groundwork for the 6G era. This article explores how 3GPP technology evolution has shaped the telecommunications landscape over the past decade, bridging two mobile generations. It concludes with insights into learned lessons, future challenges, and opportunities, offering guidelines on 6G evolution for 2030 and beyond.

Problem

• 5G to 6G Transition
• Technical Challenges
• Smartphone Performance Enhancement

Innovation

• 5G Evolution
• AI Integration
• 6G Foundation