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

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

receiving system information comprising at least one of a master information block (MB) or a system information block (SIB);

receiving configuration information for configuring a control resource set (CORESET),

wherein a first CORESET and a second CORESET are configured based on the configuration information,

wherein the configuration information includes an index of a CORESET group associated with each CORESET;

receiving first downlink control information (DCI) based on the first CORESET;

receiving second DCI based on the second CORESET;

receiving first Physical Downlink Shared channel (PDSCH) scheduled by the first DCI;

receiving second PDSCH scheduled by the second DCI;

transmitting first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH; and

transmitting second HARQ-ACK information corresponding to the second PDSCH,

wherein the method further comprising:

receiving information for determination of a HARQ-ACK codebook,

wherein the first HARQ-ACK information and the second HARQ-ACK information are based on the HARQ-ACK codebook determined by the information,

wherein based on an index of a CORESET group associated with the first CORESET being configured differently from an index of a CORESET group associated with the second CORESET, the first HARQ-ACK information and the second HARQ-ACK information are generated separately, and

wherein the first HARQ-ACK information is associated with the first CORESET and the second HARQ-ACK information is associated with the second CORESET.

2. The method of claim 1 ,

wherein the information for determination of the HARQ-ACK codebook indicates one of a dynamic type or a semi-static type.

3. The method of claim 2 ,

wherein each of the first DCI and the second DCI includes a downlink assignment indicator (DAI) field.

4. The method of claim 3 ,

wherein based on the information indicating the dynamic type, values of the HARQ-ACK codebook are determined as Acknowledgement (Ack) or Negative Acknowledgement (Nack) based on a value of the DAI field included in each DCI.

5. The method of claim 2 ,

wherein the first HARQ-ACK information is transmitted via a first physical uplink control channel (PUCCH) and the second HARQ-ACK information is transmitted via a second PUCCH.

6. The method of claim 5 ,

wherein the first PUCCH and the second PUCCH are transmitted in different resources within a slot.

7. The method of claim 6 ,

wherein a first PUCCH resource is scheduled by the first DCI, and a second PUCCH resource is scheduled by the second DCI.

8. The method of claim 7 ,

wherein the first PDSCH and the second PDSCH are received on overlapped resources in a time domain.

9. The method of claim 2 ,

wherein the first HARQ-ACK information is generated based on the index of the CORESET group associated with the first CORESET, and

wherein the second HARQ-ACK information is generated based on the index of the CORESET group associated with the second CORESET.

10. A user equipment (UE) configured to transmit and receive data in a wireless communication system, the UE comprising:

a transceiver;

at least one processor; and

at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:

receiving system information comprising at least one of a master information block (MIB) or a system information block (SIB);

receiving configuration information for configuring a control resource set (CORESET),

wherein a first CORESET and a second CORESET are configured based on the configuration information,

wherein the configuration information includes an index of a CORESET group associated with each CORESET;

receiving first downlink control information (DCI) based on the first CORESET;

receiving second DCI based on the second CORESET;

receiving first Physical Downlink Shared channel (PDSCH) scheduled by the first DCI;

receiving second PDSCH scheduled by the second DCI;

transmitting first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH; and

transmitting second HARQ-ACK information corresponding to the second PDSCH,

wherein the operations further comprising:

receiving information for determination of a HARQ-ACK codebook,

wherein the first HARQ-ACK information and the second HARQ-ACK information are based on the HARQ-ACK codebook determined by the information,

wherein based on an index of a CORESET group associated with the first CORESET being configured differently from an index of a CORESET group associated with the second CORESET, the first HARQ-ACK information and the second HARQ-ACK information are generated separately, and

wherein the first HARQ-ACK information is associated with the first CORESET and the second HARQ-ACK information is associated with the second CORESET.

11. The UE of claim 10 ,

wherein the information for determination of the HARQ-ACK codebook indicates one of a dynamic type or a semi-static type.

12. The UE of claim 11 ,

wherein each of the first DCI and the second DCI includes a downlink assignment indicator (DAI) field.

13. The UE of claim 12 ,

wherein based on the information indicating the dynamic type, values of the HARQ-ACK codebook are determined as Acknowledgement (Ack) or Negative Acknowledgement (Nack) based on a value of the DAI field included in each DCI.

14. The UE of claim 11 ,

wherein the first HARQ-ACK information is transmitted via a first physical uplink control channel (PUCCH) and the second HARQ-ACK information is transmitted via a second PUCCH.

15. The UE of claim 14 ,

wherein the first PUCCH and the second PUCCH are transmitted in different resources within a slot.

16. The UE of claim 15 ,

wherein a first PUCCH resource is scheduled by the first DCI, and a second PUCCH resource is scheduled by the second DCI.

17. The UE of claim 16 ,

wherein the first PDSCH and the second PDSCH are received on overlapped resources in a time domain.

18. The UE of claim 11 ,

wherein the first HARQ-ACK information is generated based on the index of the CORESET group associated with the first CORESET, and

wherein the second HARQ-ACK information is generated based on the index of the CORESET group associated with the second CORESET.

19. One or more non-transitory computer-readable medium storing one or more instructions, the one or more instructions executable by one ore more processors to cause a user equipment (UE) to:

receive system information comprising at least one of a master information block (MB) or a system information block (SIB);

receive configuration information for configuring a control resource set (CORESET),

wherein a first CORESET and a second CORESET are configured based on the configuration information,

wherein the configuration information includes an index of a CORESET group associated with each CORESET;

receive first downlink control information (DCI) based on the first CORESET;

receive second DCI based on the second CORESET;

receive first Physical Downlink Shared channel (PDSCH) scheduled by the first DCI;

receive second PDSCH scheduled by the second DCI;

transmit first Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information corresponding to the first PDSCH; and

transmit second HARQ-ACK information corresponding to the second PDSCH,

wherein the one or more instructions to cause the UE further to:

receive information for determination of a HARQ-ACK codebook,

wherein the first HARQ-ACK information and the second HARQ-ACK information are based on the HARQ-ACK codebook determined by the information,

wherein based on an index of a CORESET group associated with the first CORESET being configured differently from an index of a CORESET group associated with the second CORESET, the first HARQ-ACK information and the second HARQ-ACK information are generated separately, and

wherein the first HARQ-ACK information is associated with the first CORESET and the second HARQ-ACK information is associated with the second CORESET.