Disclosed are a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system supporting an unlicensed band, and devices supporting same. More particularly, disclosed are a method for transmitting a signal by means of applying analog beam varying/independent for each symbol unit, and devices supporting same, the method characterized by transmitting a signal by means of applying an analog beam varying/independent for each symbol on the basis of the successful location of a channel access procedure (e.g., listen before talk (LBT)) for signal transmission in an unlicensed band.