The present invention relates to a fifth generation (5G) or pre-5G communication system to be provided to support a data transmission rate higher than that of a fourth generation (4G) communication system, such as long term evolution (LTE), and subsequent communication systems. The radio frequency (RF) processing device of the present invention comprises: at least one antenna; an RF unit for performing communication with a base station by using the at least one antenna; a signal filter unit for dividing and outputting, when a signal is received from another RF processing device connected through one interface, a radio signal and a control signal for communicating with the base station from the received signal; a clock signal detection unit for detecting a clock signal from the control signal when the control signal is output from the signal filter unit; and a control unit for performing an operation according to the control signal according to the clock signal-based timing.