Wireless communication system, wireless base station, mobile station, and wireless communication method

A wireless base station, comprising:

• a controller configured to determine a priority of a call signal to be transmitted to a mobile station;
• and
• a baseband unit configured to transmit a first call signal having a first priority to the mobile station and to store a second call signal having a second priority which is lower than the first priority in a queue and perform a transmission process,
• wherein when the second call signal has been discarded since a limit of the queue is exceeded, the baseband unit notifies the mobile station of information representing that the second call signal has been discarded.

A wireless communication method in a wireless base station,

• comprising:
• determining a priority of a call signal to be transmitted to a mobile station;
• transmitting a first call signal having a first priority to the mobile station;
• storing a second call signal having a second priority which is lower than the first priority in a queue and performing a transmission process;
• and
• notifying, when the second call signal has been discarded since a limit of the queue is exceeded, the mobile station of information representing that the second call signal has been discarded, and
• in the mobile station
• executing, when discarding of the second call signal is recognized, an inquiry response to the wireless base station.