Apparatus for communicating using milimeter wave frequency bandwidth and method for communicating using the milimeter wave frequency bandwidth

Disclosed is a communication apparatus using a millimeter wave frequency bandwidth and a communication method thereof. The communication apparatus includes a beam scheduling unit to perform scheduling of a uplink beam and a downlink beam corresponding to movement of a terminal; a core network interface unit to transmit data provided from the beam scheduling unit to a core network and to provide data received from the core network to the beam scheduling unit; a mobile manager to configure uplink and downlink beam groups based on interference information between a beam provided from the beam scheduling unit; and an interface unit between base stations to exchange a control message with other base stations under control of the mobile manager. Accordingly, a cellular network using the millimeter wave frequency bandwidth may be efficiently established. [Reference numerals] (AA) Primary wireless backhaul link; (BB) Secondary wireless backhaul link; (CC) Wireless access link