Method for reporting channel state information in wireless communication system and apparatus for the same

A user equipment (UE) configured to report channel state information (CSI) in a wireless communication system, the UE comprising:

• a radio frequency (RF) module configured to transmit and receive radio signals;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
• receiving, via the RF module and from a base station (BS), downlink control information (DCI) related to an aperiodic CSI report that is to be performed by the UE in a slot n;
• determining, by the UE, a value nCQI_ref based on a number of symbols Z′ related to a time for computing the CSI;
• determining, by the UE, a CSI reference resource as being a slot n-nCQI_ref in a time domain that is to be used for the aperiodic CSI report;
• and
• transmitting, via the RF module and to the BS, the aperiodic CSI report in the slot n, based on the CSI reference resource being slot n-nCQI_ref.