Method for transmitting and receiving uplink data between terminal and base station in wireless communication system and device supporting same

A user equipment (UE) for performing a random access procedure by a user equipment (UE) in a wireless communication system, the UE comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
• determining whether a value of a counter for a preamble transmission is greater than a specific value based on a failure of a transmission of a random access preamble;
• based on the value of the counter for the preamble transmission being less than or equal to a specific value, transmitting a message A including the random access preamble and a physical uplink shared channel (PUSCH);
• based on the value of the counter for the preamble transmission greater than the specific value, transmitting the random access preamble and the PUSCH separately.