Method and device for transmitting and receiving feedback signal in wireless communication system

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

• receiving, from a base station, a higher layer signaling including information associated with a number of a plurality of antenna ports and information associated with a code division multiplexing (CDM) type;
• identifying a plurality of resources for a channel state information reference signal (CSI-RS) based on the CDM type and the number of the plurality of antenna ports;
• and
• receiving, from the base station, the CSI-RS through the plurality of resources associated with the plurality of antenna ports,
• wherein CDM values and CDM pattern are defined based on the CDM type.

A base station in a wireless communication system, the base station comprising:

• a transceiver;
• and at least one processor configured to:
• transmit, to a user equipment via the transceiver, a higher layer signaling including information associated with a number of a plurality of antenna ports and information associated with a code division multiplexing (CDM) type;
• configure a plurality of resources for a channel state information reference signal (CSI-RS) based on the CDM type and the number of the plurality of antenna ports;
• and
• transmit, to the UE, the CSI-RS through the plurality of resources associated with the plurality of antenna ports, wherein CDM values and CDM pattern are defined based on the CDM type.

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver;
• and
• at least one processor configured to:
• receive, from a base station via the transceiver, a higher layer signaling including information associated with a number of a plurality of antenna ports and information associated with a code division multiplexing (CDM) type;
• identify a plurality of resources for a channel state information reference signal (CSI-RS) based on the CDM type and the number of the plurality of antenna ports;
• and
• receive, from the base station via the transceiver, the CSI-RS through the plurality of resources associated with the plurality of antenna ports,
• wherein CDM values and CDM pattern are defined based on the CDM type.