The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
A method by a first base station, which includes receiving, from a second base station, a first message for requesting cell global identity (CGI) measurement; transmitting, to a terminal, a second message including configuration information for the CGI measurement based on the first message; and transmitting, to the second base station, a third message including a measurement report based on the configuration information.