High Quality Content by WIKIPEDIA articles! A radio access network (RAN) is part of a mobile Telecommunication system. It implements a radio access technology. Conceptually, it resides between a device such as a Mobile phone, a computer, or any remotely controlled machine and provides connection with its core network (CN). Depending on the standard mobile phone and other wireless connected devices are varyingly known as user equipment (UE), terminal equipment, mobile station (MS), etc.. Run functionality is typically provided by a silicon chip residing in both the core network as well as the user equipments. See the following diagram: