Apparatus and method for transmitting data in a wireless communication system

PURPOSE: A data transmission device and a method in a wireless communication system are provided to increase the availability of a channel/frequency. CONSTITUTION: A transmitting unit(903) transmits a data receives from at least one node to a connection point. A control unit(904) controls a reception from a node during a communication with a connection point. If a specific node is completes with a communication with a connection point, the control unit controls a transmitting unit and a receiving unit to perform a procedure for communicating with a connection point. The control unit controls the transmission unit which transmits a data stored in a memory as a connection point.