Method for measuring and reporting channel state information in wireless communication system and device therefor

A UE reporting channel state information (CSI) in a wireless communication system, the UE comprising:

• a radio frequency (RF) module for transmitting and receiving a radio signal;
• and
• a processor functionally connected with the RF module,
• wherein the processor controls to
• receive CSI configuration information related to a CSI reporting procedure, wherein the CSI configuration information includes information representing measurement setting for the CSI, information representing reporting setting for the CSI, and information representing resource setting for the CSI,
• receive one or more channel state information (CSI)-reference signals (CSI-RSs) based on the information representing the resource setting, and
• report the CSI determined by measurement values estimated by the one or more CSI-RSs, based on the information representing the measurement setting and the information representing the reporting setting, and
• wherein first triggering for transmission of the one or more CSI-RSs and second triggering for reporting of the CSI are indicated through downlink control information.