The present invention relates to a communication technique for converging a 5G communication system for supporting a higher data rate beyond a 4G system with an IoT technology, and a system therefor. The present invention may be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related service, and the like) on the basis of a 5G communication technology and an IoT-related technology. A communication method for a terminal according to an embodiment of the present invention may comprise the steps of: transmitting a RAT discovery request message to a base station through a CDCH; receiving, from the base station, a RAT discovery response message and system information associated with the RAT; and receiving, from the base station, a UE-specific configuration message through a resource area configured according to the system information.