Toward 6G – Collecting the Research Visions

This introductive chapter draws a panorama from 5G to 6G, by gathering several research visions for this shift. We first discuss the opportunity to develop a 6th generation of mobile networks, the foreseen services, and the moves in the value chain for standardization and development processes. The chapter then introduces the key innovations and elements to consider for shaping 6G networks, on society needs and attempts, access technologies, networking technologies, network management, and operation.