The 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 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. Methods and apparatuses for exchanging configuration information related to a demodulation reference signal (DMRS) are provided, and particularly, for providing DMRS ports included in a different code division multiplexing group for communication between a terminal and a base station.