State-of-the-art review and initial definition of BeGREEN O-RAN intelligent plane, and AI/ML algorithms for NFV user-plane and edge service control energy efficiency optimization

D4.1 reports the outcomes of T4.1, T4.2 and T4.3 on the SotA review, and will establish the design principles of the BeGREEN intelligent plane and the AI/ML-assisted procedures to enhance energy efficiency of the network user plane functions and the edge assisted service control. An initial design of the BeGREEN intelligent plane developed in T4.1 and the AI/ML algorithms developed in T4.2 and T4.3 will also be included in this deliverable.