Method and device for transmitting and receiving signal in wireless communication system

A terminal for transmitting and receiving signals in a wireless communication system, the terminal comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one memory operatively connected to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform a specific operation,
• wherein the specific operation comprises:
• performing a random access procedure;
• after performing the random access procedure, monitoring a Physical Downlink Control Channel (PDCCH) for an on duration based on configured Discontinuous Reception (DRX);
• and
• based on the PDCCH successfully received for the on duration, operating an inactivity timer,
• wherein, during the random access procedure, a random access preamble is transmitted in one or two Physical Random Access Channel (PRACH) slots,
• wherein the one or two PRACH slots are determined among N slots corresponding to a reference slot,
• wherein, based on a SubCarrier Spacing (SCS) configuration value applied to the N slots being 5 or 6, an SCS configuration value for the reference slot is 2.