Radio access network slice

A radio access network (RAN) slice provides radio access to a communication network for a user equipment. The RAN slice is uniquely identified by a RAN slice identifier. The RAN slice includes: a base station for providing access to the RAN slice for the user equipment; an access and mobility management function (AMF) entity configured to handle the RAN slice identifier identifying the RAN slice; and a session management function (SMF) entity configured to handle data communications of the user equipment over the RAN slice. The base station is configured to receive an attach request originating from the user equipment to connect to the RAN slice, and to reject access to the RAN slice in response to the attach request not comprising the RAN slice identifier.