3MSG3 METHOD AND APPARATUS FOR SIGNALING MULTIPLE RESOURCES FOR MESSAGE 3MSG3 TRANSMISSIONS

摘要

Provided is a communication method and system for converting a 5G communication system supporting a higher data rate than a 4G (fourth generation) system using the Internet of Things (IOT) technology. This communication method and system is based on 5G communication technology such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services, and intelligent services based on IoT related technologies. Can be applied. A method of a terminal for performing a random access procedure is provided. The method comprises transmitting a random access preamble to a base station, receiving a random access response (RAR) from a base station, and each media access control (MAC) sub-protocol data unit (subPDU) within the received RAR accesses randomly. And identifying whether a random access preamble identifier (RAPID) corresponding to the preamble is included. The RAR includes a plurality of MAC subPDUs including RAPID corresponding to the random access preamble.