Wireless base station apparatus and communication control method

A radio base station apparatus,

• wherein the radio base station apparatus is configured to shift to a first state in which transmission and reception of a radio signal are stopped, a second state in which transmission and reception of a radio signal are started, and a third state in which a radio signal is transmitted in transmission power necessary for maintaining a predetermined communication range, the radio base station apparatus comprising:
• a downlink transmission signal processing section configured to instruct, in the second state and the third state, a terminal apparatus timing for transmitting an initial connection signal;
• an uplink received signal processing section configured to receive the initial connection signal transmitted by the terminal apparatus at the timing for transmitting the initial connection signal;
• and
• an uplink reception determining section configured to determine the timing for transmitting the initial connection signal such that the initial connection signal is sent more frequently in the second state than in the third state.