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

1. A method for transmitting data on a physical shared channel in a wireless communication system, the method performed by a user equipment and 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 regarding 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.

2. The method of claim 1 , wherein the data is transmitted on a slot.

3. The method of claim 1 , wherein the first physical shared channel includes one or more consecutive symbols.

4. The method of claim 1 , wherein the first DMRS is mapped only to a symbol constructing a specific physical shared channel among the first physical shared channels which are transmitted repeatedly in the physical shared channel group.

5. The method of claim 1 , based on the physical shared channel group including two first physical shared channels, and the mapping information is applicable only to the physical shared channel transmitted first among the first physical shared channels which are transmitted repeatedly in the physical shared channel group,

wherein the first DMRS is mapped to a symbol constructing a symbol constructing the physical shared channel transmitted first, and

wherein a position of the symbol to which the first DMRS is mapped and the corresponding position are mapped to a DMRS in the physical shared channel transmitted second among the first physical shared channels which are transmitted repeatedly in the physical shared channel group.

6. The method of claim 1 , wherein the mapping information includes information for a position of a specific symbol to which the first DMRS is mapped.

7. The method of claim 1 , wherein, based on the physical shared channel group being configured on a plurality of slots,

the mapping information includes information for a position of a specific slot to which the first DMRS is mapped.

8. 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.

9. The UE of claim 8 , wherein the data is transmitted on a slot.

10. The UE of claim 8 , wherein the first physical shared channel includes one or more consecutive symbols.

11. The UE of claim 8 , wherein the first DMRS is mapped only to a symbol constructing a specific physical shared channel among the first physical shared channels which are transmitted repeatedly in the physical shared channel group.

12. The UE of claim 8 , based on the physical shared channel group including two first physical shared channels, and the mapping information is applicable only to the physical shared channel transmitted first among the first physical shared channels which are transmitted repeatedly in the physical shared channel group,

wherein the first DMRS is mapped to a symbol constructing a symbol constructing the physical shared channel transmitted first, and

wherein a position of the symbol to which the first DMRS is mapped and the corresponding position are mapped to a DMRS in the physical shared channel transmitted second among the first physical shared channels which are transmitted repeatedly in the physical shared channel group.

13. The UE of claim 8 , wherein the mapping information includes information for a position of a specific symbol to which the first DMRS is mapped.

14. The UE of claim 8 , wherein, based on the physical shared channel group being configured on a plurality of slots,

the mapping information includes information for a position of a specific slot to which the first DMRS is mapped.

15. 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.