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

A user equipment (UE) for receiving a channel state information reference signal (CSI-RS) in a wireless communication system, the UE comprising:

• a transceiver transmitting and receiving a radio signal;
• and
• a processor functionally connected to the transceiver and controlling the UE,
• wherein the processor is configured to:
• receive, from a base station, CSI-RS resource configuration information related to a numbering for a plurality of CSI-RS resources through a radio resource control (RRC) signaling,
• wherein the plurality of CSI-RS resources are aggregated to obtain a total number of antenna ports for the CSI-RS using more than eight antenna ports, and
• wherein the CSI-RS resource configuration information includes first CSI-RS configuration information and at least one second CSI-RS configuration information, and
• determine numbers for the plurality of CSI-RS resources based on the received CSI-RS resource configuration information,
• wherein a specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the first CSI-RS configuration information, and at least one CSI-RS resource except the specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the second CSI-RS configuration information.