Apparatus and method for transmitting or receiving signal in wireless communication system

Abstract

The present disclosure relates to a communication technique for combining IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety-related services, and the like) on the basis of 5G communication technologies and IoT-related technologies. According to various embodiments of the present disclosure, a method of a first terminal (user equipment, UE) in a wireless communication system may comprise the steps of: when reception of a first physical sidelink feedback channel (PSFCH) for a first physical sidelink shared channel (PSSCH) and transmission of a second PSFCH for a second PSFCH overlap in a time domain, determining a PSFCH on the basis of first sidelink control information (SCI) related to the first PSFCH and second SCI related to the second PSFCH; and transmitting or receiving feedback information through the determined PSFCH.