1 The Status of Open Source for 5G TABLE OF CONTENTS Executive Summary .................................................................................................................................... 4 1. Introduction ............................................................................................................................................. 4 2. Open Source (OS) Model ........................................................................................................................ 5 2.1 What is Open Source? ...................................................................................................................... 5 2.2 Governance Models Make a Difference........................................................................................... 6 2.3 Standards-based Open Source vs. Open Source implementations ............................................ 6 3. 5G Architecture ....................................................................................................................................... 7 3.1 5G Core Network ............................................................................................................................... 7 3.1.1 Control Plane (CP) ...................................................................................................................... 8 3.1.2 User Plane (UP) ......................................................................................................................... 10 3.2 5G Radio Network............................................................................................................................ 10 3.3 Convergence – Support for non-3GPP Access ............................................................................ 12 4. OS Applicability in 5G........................................................................................................................... 13 4.1 5G Infrastructure ............................................................................................................................. 14 4.2 5G Radio Network............................................................................................................................ 15 4.3 5G Core Network ............................................................................................................................. 15 4.3.1 Control Plane (CP) .................................................................................................................... 16 4.3.2 User Plane (UP) ......................................................................................................................... 16 4.4 Convergence .................................................................................................................................... 17 4.5 Management & Control ................................................................................................................... 17 4.6 Security ............................................................................................................................................ 18 4.7 Services ............................................................................................................................................ 20 4.8 Considerations for Open Source Applicability ............................................................................ 20 4.9 Open Source Efforts........................................................................................................................ 22 5. Conclusion ............................................................................................................................................. 22 Appendix .................................................................................................................................................... 24 A.1 Applicable Open Source Effort Inventory .................................................................................... 24 2 The Status of Open Source for 5G A.2 Glossary ........................................................................................................................................... 26 Acknowledgements .................................................................................................................................. 28 3 The Status of Open Source for 5G EXECUTIVE SUMM ARY “5G” and “open source” are by far two of the hottest topics in the telecom industry over