The main target of this document is to investigate the following aspects, which were not covered in phase 1.

• How to make services more decoupled to achieve independent Life Cycle Management (LCM) and flexible service deployment and management.
• How to achieve high performance, including low delay, high concurrency, high reliability, and security
• Investigate how to support roaming across different 5G core networks
• Case study for generation of network slicing and edge computing by service
• Case study and recommendations for a distribution strategy of network services