Method and device for supporting random access for low-capability terminal in wireless communication system

Abstract

The present 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 present 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. According to an embodiment of the present disclosure, a method of a terminal in a wireless communication system includes: receiving system information including a first parameter set for a random access of a type 1 terminal, a second parameter set for a random access of a type 2 terminal, and an indicator indicating whether the type 2 terminal is supported; in case that the terminal is the type 2 terminal, identifying whether a cell on which the system information is transmitted is available to access based on the indicator; and in case that the cell is identified to be available to access, transmitting a random access preamble based on the second parameter set, wherein a bandwidth supported by the type 2 terminal is less than a first threshold value and a data rate supported by the type 2 terminal is less than a second threshold value.