Method for transmitting data on physical shared channel in wireless communication system, and device for same

A user equipment (UE) configured to transmit data on a physical shared channel in a wireless communication system, the UE comprising:

• a transceiver configured to transmit and receive a radio signal;
• and
• a processor functionally connected to the transceiver,
• wherein the processor is configured to perform operations comprising:
• receiving, from a base station, configuration information including mapping information;
• receiving, from the base station, resource allocation information related to a first physical shared channel allocated to transmit the data;
• and
• transmitting, to the base station, the data using the allocated first physical shared channel,
• wherein the data is transmitted repeatedly as much as a number of the first physical shared channel on a physical shared channel group including a predetermined number of the first physical shared channels,
• wherein a first dedicated demodulation-Reference Signal (DMRS) for the data is mapped to a symbol constructing the physical shared channel group according to the mapping information and transmitted to the base station,
• wherein the mapping information is information for mapping a second DMRS for a second physical shared channel including symbols of a same number as a symbol number constructing the physical shared channel group, and
• wherein the second DMRS is transmitted only for the second physical shared channel related to a configured redundancy version (RV), and the second physical shared channel not related to the configured RV shares the first DMRS with the first physical shared channel.

A method for receiving data on a physical shared channel in a wireless communication system, the method performed by a base station and comprising:

• transmitting, to a user equipment (UE), configuration information including mapping information;
• transmitting, to the UE, resource allocation information related to a first physical shared channel allocated to transmit the data;
• and
• receiving, from the UE, the data transmitted using the allocated first physical shared channel,
• wherein the data is transmitted repeatedly as much as a number of the first physical shared channel on a physical shared channel group including a predetermined number of the first physical shared channels,
• wherein a first dedicated demodulation-Reference Signal (DMRS) for the data is mapped to a symbol constructing the physical shared channel group according to the mapping information and transmitted to the base station,
• wherein the mapping information is information for mapping a second DMRS for a second physical shared channel including symbols of a same number as a symbol number constructing the physical shared channel group, and
• wherein the second DMRS is transmitted only for the second physical shared channel related to a configured redundancy version (RV), and the second physical shared channel not related to the configured RV shares the first DMRS with the first physical shared channel.