Method and device for transmitting and receiving reference signal in millimeter wave wireless communication system

An operating method of a user equipment (UE) in a wireless communication system, the operating method comprising:

• receiving, via higher layer signaling, one or more reference signal configurations from a base station (BS) so as to transmit a reference signal by using a single carrier;
• receiving, from the BS, information about a reference signal configuration to be used for the UE from among the one or more reference signal configurations, via at least one of the higher layer signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE);
• and
• receiving, from the BS, the reference signal via a data channel, based on the information about the reference signal configuration to be used for the UE.

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

• a communicator;
• at least one memory comprising an instruction;
• and
• at least one processor configured to execute the instruction to control the BS to transmit, via higher layer signaling, one or more reference signal configurations to a user equipment (UE) so as to transmit a reference signal by using a single carrier, transmit, to the UE, information about a reference signal configuration to be used for the UE from among the one or more reference signal configurations, via at least one of the higher layer signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE), and transmit, to the UE, the reference signal via a data channel, based on the information about the reference signal configuration to be used for the UE.