According to an embodiment of the present invention a UE may receive a first system information block (SIB) including a system information (SI) request-related configuration including a physical random access channel configuration; transmit a random access (RA) preamble for an SI request based on the PRACH configuration; and receive, in response to the RA preamble, a second SIB different from the first SIB, wherein the SI request-related configuration may include first information related only to a first type UE with reduced capability to support a smaller bandwidth than a second type UE, and second information common for the first type UE and the second type UE, and the UE may be the first type UE and may perform the RA preamble transmission by determining an RA association period and an RA occasion based on both of the first information and the second information in the SI request-related configuration.