A user equipment, UE, comprising: a selecting unit, configured to select from multiple core network types, a core network type to be used for providing a service; a transceiver, configured to select an access control information corresponding to the selected core network type, from multiple pieces of access control information corresponding to multiple core network types and broadcasted by a base station, wherein the UE receives one piece of access control information corresponding to the selected network type, so as to perform a corresponding access control check based on the received access control information; a checking unit, configured to perform a corresponding access control check for the selected core network type using the received one piece of access control information while the user equipment is in an RRC inactive state or an RRC idle state; a starting unit, configured to start an access barring timer when a result of the access control check indicates that the access to the selected core network type is barred; an informing unit, configured to inform an upper layer of the user equipment that the barring is alleviated when the access barring timer expires; and when the result of the access control check indicates that the access is not barred, the UE initiates a RRC connection establishment request, wherein the UE selects the core network type to be used for providing a service based on one of the following: receiving an indication from an upper layer of the UE and comprising the network type; core network type priority information contained in system information or dedicated signalling received from the base station; a core network type that has been registered by the UE. a selecting unit, configured to select from multiple core network types, a core network type to be used for providing a service; a transceiver, configured to select an access control information corresponding to the selected core network type, from multiple pieces of access control information corresponding to multiple core network types and broadcasted by a base station, wherein the UE receives one piece of access control information corresponding to the selected network type, so as to perform a corresponding access control check based on the received access control information; a checking unit, configured to perform a corresponding access control check for the selected core network type using the received one piece of access control information while the user equipment is in an RRC inactive state or an RRC idle state; a starting unit, configured to start an access barring timer when a result of the access control check indicates that the access to the selected core network type is barred; an informing unit, configured to inform an upper layer of the user equipment that the barring is alleviated when the access barring timer expires; and when the result of the access control check indicates that the access is not barred, the UE initiates a RRC connection establishment request, wherein the UE selects the core network type to be used for providing a service based on one of the following: receiving an indication from an upper layer of the UE and comprising the network type; core network type priority information contained in system information or dedicated signalling received from the base station; a core network type that has been registered by the UE.