Terminal and base station in the carrier aggregation communication system, and call admission control method using these

The present invention relates to a terminal, a base station and a call connection processing method in a carrier aggregation environment in a wireless communication system. According to one aspect of the invention the terminal it is possible to include a plurality of physical layer and a base station provides a plurality of units of frequency. And to send and receive with the subscriber station and the time a base station to send and receive messages relating to connection establishment, each of the physical layer is selected unit of frequency information, in the physical layer is to select the unit frequency information, uplink synchronization calculation information, message and based on and it is possible that the admission control and load control call. Therefore, the rapid call connection procedures and load balancing than the frequency set of the communication environment, it is possible to guarantee. carrier aggregation, component carrier, component carrier element