Radio base station/radio base station controller equipped with inactivity timer, mobile station, and state control method

A state control method of a radio base station/radio base station controller, for controlling a connected state in which a radio channel for carrying out communication between the radio base station/radio base station controller and a mobile station is secured and a dormant state in which a call is brought into a suspended state and the radio channel is disconnected, wherein:

• in a case where the radio base station/radio base station controller transmits or receives data to or from the mobile station, a control unit acquires information of one of an application type, a connection destination type, and a traffic pattern in the transmitted or received data;
• an inactivity timer value as a timing when the connected state is changed to the dormant state is set on the basis of the acquired information of one of the application type, the connection destination type, and the traffic pattern, and
• when a count value of an inactivity timer, which starts to count up in response to transmission/reception of a packet from a specified mobile station or to the mobile station, reaches the set inactivity timer value, a control to change the connected state to the dormant state is carried out.

A state control method of a mobile station, for controlling a connected state in which a radio channel for carrying out communication between a radio base station/radio base station controller and the mobile station is secured and a dormant state in which a call is brought into a suspended state and the radio channel is disconnected, wherein:

• in a case where the mobile station transmits or receives data to or from the radio base station/radio base station controller, information of one of an application type, a connection destination type, and a traffic pattern in the transmitted or received data is acquired;
• an inactivity timer value as a timing when the connected state is changed to the dormant state is set on the basis of the acquired information of one of the application type, the connection destination type, and the traffic pattern, and
• when a count value of an inactivity timer, which starts to count up in response to transmission/reception of a packet from a specified radio base station/radio base station controller or to the radio base station/radio base station controller, reaches the set inactivity timer value, a control to change the connected state to the dormant state is carried out.