Method and apparatus for transmitting and receiving reference signal in communication system

A method for transmitting a reference signal (RS) by a base station, the method comprising:

• transmitting, to a first user equipment (UE), configuration information of a periodic channel state information (CSI) RS;
• receiving, from the first UE, CSI of the periodic CSI-RS;
• and
• transmitting, to the first UE, information indicating that subsequent measurement of the periodic CSI-RS is required to be performed in a first subframe subsequent to a second subframe through which the periodic CSI-RS is to be transmitted in case that the second subframe is to be overlapped with a third subframe through which an aperiodic CSI-RS for a second UE is to be transmitted.

A first user equipment (UE) for receiving a reference signal (RS), the first UE comprising:

• a transceiver;
• and
• a processor configured to:
• control the transceiver to receive, from a base station (BS), configuration information of a periodic channel state information (CSI) RS,
• measure the periodic CSI-RS in a subframe based on the received configuration information,
• control the transceiver to transmit, to the BS, CSI based on a result of the measurement of the periodic CSI-RS,
• control the transceiver to receive, from the BS, information indicating that subsequent measurement of the periodic CSI-RS is required to be performed in a first subframe subsequent to a second subframe through which the periodic CSI-RS is to be transmitted in case that the second subframe is to be overlapped with a third subframe through which an aperiodic CSI-RS for a second UE is to be transmitted, and
• control the transceiver to transmit, to the BS, CSI based on a result of measurement of the periodic CSI-RS which is based on the information.

A base station (BS) for transmitting a reference signal (RS), the BS comprising:

• a transceiver;
• and
• a processor configured to:
• control the transceiver to transmit, to a first user equipment (UE), configuration information of a periodic channel state information (CSI)-RS,
• control the transceiver to receive, from the first UE, CSI of the periodic CSI-RS,
• control the transceiver to transmit, to the first UE, information indicating that subsequent measurement of the periodic CSI-RS is required to be performed in a first subframe subsequent to a second subframe through which the periodic CSI-RS is to be transmitted in case that the second subframe is to be overlapped with a third subframe through which an aperiodic CSI-RS for a second UE is to be transmitted, and
• control the transceiver to receive, from the first UE, CSI based on a result of measurement of the periodic CSI-RS which is based on the information.