Method for transmitting or receiving signal in wireless communication system and apparatus therefor

A method of transmitting a downlink signal by a base station (BS) in a wireless communication system, the method comprising:

• transmitting a configuration for a channel state information-reference signal (CSI-RS) resource;
• and
• transmitting slot format-related information (SFI) through a group common-physical downlink control channel (GC-PDCCH) to a user equipment (UE) group including at least one UE,
• wherein the BS indicates to the UE group by the SFI whether each of a plurality of resources included in a slot is a downlink (D) resource, an uplink (U) resource, or a third resource for which D or U is not determined, and the third resource is indicated by the SFI of the GC-PDCCH from among third resource candidates which are indicated to the UE through a semi-static configuration, and
• wherein the BS deactivates reception of a CSI-RS of the UE group which was scheduled in a CSR-RS resource by configuring, through the SFI of the GC-PDCCH, at least one of the U resource or the third resource to the CSI-RS resource.

A user equipment (UE) comprising:

• a transceiver;
• and
• a processor configured to receive a configuration for a channel state information-reference signal (CSI-RS) resource, and to receive slot format-related information (SFI) through a group common-physical downlink control channel (GC-PDCCH), by controlling the transceiver,
• wherein the processor is configured to receive a CSI-RS in a CSI-RS resource or deactivate the reception of the CSI-RS in the CSI-RS resource, according to the SFI received through the GC-PDCCH,
• wherein the SFI indicates whether each of a plurality of resources included in a slot is a downlink (D) resource, an uplink (U) resource, or a third resource for which D or U is not determined, and the third resource is indicated by the SFI of the GC-PDCCH from among third resource candidates which are indicated to the UE through a semi-static configuration, and
• wherein if the SFI of the GC-PDCCH configures any one of the U resource or the third resource to the CSI-RS resource, the processor is configured to deactivate the reception of the CSI-RS scheduled in the CSI-RS resource.