Method for transmitting and receiving signal by terminal and base station in wireless communication system and device supporting same

A method of transmitting an uplink signal by a user equipment (UE) in a wireless communication system, the method comprising:

• obtaining first information related to at least one demodulation reference signal (DMRS) port index for a physical uplink shared channel (PUSCH);
• obtaining second information related to at least one resource among a plurality of resources in a DMRS transmission interval;
• and
• transmitting the uplink signal comprising a PUSCH signal and the DMRS, based on the first and second information,
• wherein frequency resources for the DMRS is determined based on the at least one DMRS port index, and
• wherein resources for the PUSCH signal in the DMRS transmission interval is determined based on the second information.

A user equipment (UE) for transmitting an uplink signal in a wireless communication system, the UE comprising:

• a transmitter;
• a receiver;
• and
• a processor controls the transmitter and the receiver,
• wherein the processor is configured to:
• obtain first information related to at least one demodulation reference signal (DMRS) port index for a physical uplink shared channel (PUSCH);
• obtain second information related to at least one resource among a plurality of resources in a DMRS transmission interval;
• and
• transmi the uplink signal comprising a PUSCH signal and the DMRS, based on the first and second information,
• wherein frequency resources for the DMRS is determined based on the at least one DMRS port index, and
• wherein resources for the PUSCH signal in the DMRS transmission interval is determined based on the second information.

A base station for receiving an uplink signal in a wireless communication system, the base station comprising:

• a transmitter;
• a receiver;
• and
• a processor controls the transmitter and the receiver,
• wherein the processor is configured to:
• transmit to a user equipment, first and second information,
• wherein the first information is related to at least one demodulation reference signal (DMRS) port index for a physical uplink shared channel (PUSCH),
• wherein the second information is related to at least one resource among a plurality of resources in a DMRS transmission interval;
• and
• receive from the user equipment, the uplink signal comprising a PUSCH signal and the DMRS, based on the first and second information,
• wherein frequency resources for the DMRS is determined based on the at least one DMRS port index, and
• wherein resources for the PUSCH signal in the DMRS transmission interval is determined based on the second information.