Terminal apparatus, communication system, access control method, and integrated circuit

A terminal apparatus comprising:

• a radio resource control unit configured to obtain barring skip information included in broadcast information, and obtain, from a higher layer of the terminal apparatus, a request for establishing a radio resource control connection, and a cause for establishing the radio resource control connection, wherein
• the radio resource control unit is configured to, in a case that the radio resource control connection is established for a specific call and the barring skip information is broadcast, determine that access is not barred regardless of a running state of a timer which is used to determine whether or not access by a call is barred, and
• the radio resource control unit is configured to, in a case that the radio resource control connection is established for a specific call and the barring skip information is not broadcast, perform an access barring check based on a cause for establishing a normal call.

An integrated circuit mountable on a terminal apparatus comprising:

• a radio resource control unit configured to obtain barring skip information included in broadcast information, and obtain, from a higher layer of the terminal apparatus, a request for establishing a radio resource control connection, and a cause for establishing the radio resource control connection, wherein
• the radio resource control unit is configured to, in a case that the radio resource control connection is established for a specific call and the barring skip information is broadcast, determine that access is not barred regardless of a running state of a timer which is used to determine whether or not access by a call is barred, and
• the radio resource control unit is configured to, in a case that the radio resource control connection is established for a specific call and the barring skip information is not broadcast, perform an access barring check based on a cause for establishing a normal call.