A method and device for determining occupied slots, a storage medium, and a user equipment. The method comprises: receiving a slot format indication index and a number N of slots indicated by a slot format from a base station by means of a PDCCH, and according to the slot format indication index, determining a starting position in the PDCCH of the slots indicated by the slot format; receiving a number M of spatial directions from the base station, and receiving multiple indication signals transmitted from the M spatial directions from the base station; determining the M spatial directions according to the indication signals; and in the M spatial directions, determining slots occupied by the base station in each spatial direction according to the starting position in the PDCCH of the slots indicated by the slot format and the number N of the slots indicated by the slot format.