The present disclosure relates to: a communication technique for merging IoT technology with a 5G communication
system for supporting a
data transmission rate higher than that of a 4G
system; and a
system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smartcars or connected cars, healthcare,
digital education, small businesses, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to a method and a device for performing, on the basis of a sidelink in a
wireless communication system, a RAN notification area (
RNA) update operation of a remote terminal, in an RRC_INACTIVE state, connected to a
relay.