Connection method of a wireless communication system, specially correlated to reducing time for a connection and a likelihood of a connection channel collision

PURPOSE: A connection method of a wireless communication system is provided to perform a connection process by using information on a currently unused connection channel notified from a base station when a mobile station requests a connection, thereby reducing a likelihood of a collision caused by a channel connection. CONSTITUTION: The first MS(201) receives a broadcasting channel(501), and decides information included in the broadcasting channel(502). The first MS(201) requests a connection to an unused connection channel(503), and waits for a connection permissive signal to be received from a BS(100)(504-506). If a driving of the first timer is completed, the first MS(201) decides whether the connection permissive signal is received from the BS(100)(507). If so, the BS(100) receives the connection request through the unused connection channel, and is connected with the first MS(201)(510).