Method for transmitting and receiving data in wireless communication system and apparatus for supporting same

A user equipment for transmitting and receiving data in a wireless communication system, the user equipment comprising:

• a transceiver configured to transmit and receive a radio signal;
• and
• a processor functionally coupled with the transceiver,
• wherein the processor is configured to:
• receive, from a base station, a system information block comprising backoff information for a random access, the backoff information comprising a first minimum backoff time and a first maximum backoff time,
• select a random backoff time between the first minimum backoff time and the first maximum backoff time,
• transmit, to the base station, a preamble for a random access after the selected random backoff time has elapsed,
• receive, from the base station, a response message including resource information for transmitting data in response to the preamble, and
• transmit, to the base station, the data based on the resource information.