Method for transmitting/receiving data in wireless communication system, and device therefor

1. A method for receiving, by a user equipment (UE), data in a wireless communication system, the method comprising:

receiving configuration information including resource allocation information related to a plurality of resource set groups, wherein each of the resource set groups includes a plurality of resource sets;

receiving a first demodulation reference signal (DMRS) and first data from a first resource set; and

receiving a second DMRS and second data from a second resource set,

wherein the first resource set and the second resource set are included in the same resource set group,

wherein Quasi-co-Location (QCL) related information associated with each resource set included in the same resource set group is the same, and

wherein a location of a frequency resource of the second DMRS is not overlapped by being shifted from a location of a frequency resource of the first DMRS,

wherein the second DMRS is omitted in the second resource set, and the second data is received in a resource location of the second DMRS.

2. The method of claim 1 , wherein the first DMRS is omitted and the first data is received in some of frequency resources of the first DMRS, and

the second DMRS is omitted and the first data is received in some of frequency resources of the second DMRS.

3. The method of claim 2 , wherein the DMRS is not omitted in a first resource set and a last resource set among the plurality of resource sets.

4. The method of claim 3 , further comprising:

receiving information related to omission of the DMRS which is in form of a bitmap,

wherein whether the DMRS is omitted in the plurality of resource sets is configured based on the information in form of the bitmap.

5. The method of claim 1 , further comprising:

receiving information indicating whether a same precoder is applied to the plurality of resource sets included in a same resource set group.

6. The method of claim 5 , wherein the plurality of resource sets are consecutively located in a time domain based on that the same precoder is applied to the plurality of resource sets.

7. The method of claim 1 , wherein a same precoder is applied to the plurality of resource sets based on that the plurality of resource sets are consecutively located in the time domain.

8. The method of claim 1 , further comprising:

receiving information related to activation of frequency hopping,

wherein locations of the plurality of resource sets in the time domain are determined based on the information related to the activation of the frequency hopping.

9. The method of claim 1 , wherein whether the frequency hopping is activated is determined based on locations of the plurality of resource sets in the time domain.

10. The method of claim 1 , wherein the first data and the second data are included in a same transport block.

11. The method of claim 10 , wherein each resource set is comprised of one of one or more symbols, sub-slots, or slots.

12. The method of claim 11 , further comprising:

receiving information on a number of times at which the transport block is repeatedly transmitted,

wherein resource units comprising each resource set are calculated based on the information on the number of times at which the transport block is repeatedly transmitted and the number of plurality of resource set groups.

13. A user equipment (UE) for transmitting and receiving data in a wireless communication system, the UE comprising:

one or more transceivers;

one or more processors; and

one or more memories storing instructions for operations executed by the one or more processors and connected to the one or more processors,

wherein the operations include:

receiving configuration information including resource allocation information related to a plurality of resource set groups, wherein each of the resource set groups includes a plurality of resource sets;

receiving a first demodulation reference signal (DMRS) and first data from a first resource set; and

receiving a second DMRS and second data from a second resource set,

wherein the first resource set and the second resource set are included in the same resource set group,

wherein Quasi-co-Location (QCL) related information associated with each resource set included in the same resource set group is the same, and

wherein a location of a frequency resource of the second DMRS is not overlapped by being shifted from a location of a frequency resource of the first DMRS,

wherein the second DMRS is omitted in the second resource set, and the second data is received in a resource location of the second DMRS.

14. A device comprising:

one or more memories and one or more processors functionally connected to the one or more memories,

wherein the one or more processors control the device to:

receive configuration information including resource allocation information related to a plurality of resource set groups, wherein each of the resource set groups includes a plurality of resource sets;

receive a first demodulation reference signal (DMRS) and first data from a first resource set; and

receive a second DMRS and second data from a second resource set,

wherein the first resource set and the second resource set are included in the same resource set group,

wherein Quasi-co-Location (QCL) related information associated with each resource set included in the same resource set group is the same, and

wherein a location of a frequency resource of the second DMRS is not overlapped by being shifted from a location of a frequency resource of the first DMRS,

wherein the second DMRS is omitted in the second resource set, and the second data is received in a resource location of the second DMRS.