Method and apparatus for indicating preempted resource information

A base station (BS) for transmitting a downlink signal in a wireless communication system, the BS 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 by the at least one processor, perform operations comprising:
• transmitting, via the at least one transceiver, information for informing whether a downlink signal is transmitted in each of a plurality of durations included in a specific time region;
• and
• transmitting, via the at least one transceiver, the downlink signal based on the information,
• wherein a number of the plurality of durations is M,
• wherein the plurality of durations include i) one or more first durations in which each of the first durations has a first size and ii) one or more second durations in which each of the second durations has a second size, and
• wherein the first size is defined by Ceil(T/M), the second size is defined by Floor(T/M),
• where T denotes a number of symbols of the specific time region.