The present disclosure provides an uplink signal transmission method, a terminal, and base station. The terminal receives, from a base station, control information for an uplink scheduling, the control information including information indicating a reference starting position of a physical uplink shared channel (PUSCH); and transmits, to the base station, data based on the information indicating the reference starting position of the PUSCH. The information indicating the reference starting position of the PUSCH includes a starting symbol and a starting position preceding the starting symbol.