Patent ID: 11057176

Abstract:
Disclosed are: a communication technique for merging, with IoT technology, 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 home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of 5G communication technology and an IoT-related technology. The present invention provides a method by which a base station transmits a DM-RS in a wireless mobile communication system supporting a first transmission time interval (TTI) and a second TTI, comprising the steps of: checking a TTI used in a downlink control channel transmission; determining, as a first pattern, a DM-RS for the downlink control channel if the TTI is the first TTI, and determining, as a second pattern, a DM-RS for the downlink control channel if the TTI is the second TTI; and transmitting, to the terminal, the downlink control channel and the DM-RS according to the determination.