Patent ID: 8320964

Claim:
A mobile station, comprising: a first layer function that communicates between the mobile station and a radio access network, and a second layer function that terminates between the mobile station and a service control network, wherein the first layer function comprises: a broadcast information reception unit configured to receive the broadcast information; an adjustment unit configured to generate second barring information based on access classes of the mobile station and the first barring information included in the broadcast information; and a notification unit configured to notify the second layer function of the second barring information, and the second layer function comprises a determination unit configured to determine whether or not it is possible to perform a call request process based on the second barring information, wherein the determination unit of the second layer function is configured to perform the determination by determining whether or not the period of prohibiting the call request process is occurring, which is decided based on the time information included in the second barring information, wherein the determination unit of the second layer function is configured to activate a timer for managing the period of prohibiting the call request process based on the information included in the second barring information, when it determines that the call request process cannot be performed.