Holistic Network Virtualization and Pervasive Network Intelligence for 6G

In this tutorial paper, we look into the evolution and prospect of network architecture propose a novel conceptual for 6th generation (6G) networks. The proposed has two key elements, i.e., holistic virtualization pervasive artificial intelligence (AI). consists slicing digital twin, from aspects service provision demand, respectively, to incorporate service-centric user-centric networking. integrates AI future networks perspectives networking networking, respectively. Building on intelligence, can facilitate three types interplay, interplay between twin paradigms, model-driven data-driven methods management, AI, maximize flexibility, scalability, adaptivity, 6G We also identify challenges open issues related architecture. By providing our vision, aim inspire further discussions developments potential 6G.