Method for transmitting and receiving physical downlink shared channel and demodulation reference signal and apparatus therefor

An apparatus for receiving a Physical Downlink Shared Channel (PDSCH) in a wireless communication system, the apparatus comprising:

• 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:
• receiving first information related to at least one control resource set (CORESET),
• receiving second information related to a CORESET not used for the PDSCH among the at least one CORESET, and
• receiving the PDSCH in first resources other than the CORESET not used for the PDSCH,
• wherein, when the first resources for the PDSCH overlap second resources for the at least one CORESET, a demodulation reference signal (DMRS) for the PDSCH is received in an orthogonal frequency division multiplexing (OFDM) symbol after the at least one CORESET.

A method for transmitting a Physical Downlink Shared Channel (PDSCH) by a base station (BS) to user equipment (UE) in a wireless communication system, the method comprising:

• transmitting first information related to at least one control resource set (CORESET);
• transmitting second information related to a CORESET not used for the PDSCH among the at least one CORESET;
• and
• transmitting the PDSCH in first resources other than the CORESET not used for the PDSCH, and
• wherein, when the first resources for the PDSCH overlap second resources for the at least one CORESET, a demodulation reference signal (DMRS) for the PDSCH is transmitted in an orthogonal frequency division multiplexing (OFDM) symbol after the at least one CORESET.