Method related to a timing to transmit a feedback information in a wireless communication system

1. A method of performing an operation for a first user equipment (UE) in a wireless communication system, the method comprising:

determining a slot for transmitting a physical uplink control channel (PUCCH) based on a value related to the number of slots from a physical sidelink feedback channel (PSFCH) to the PUCCH by the first UE; and

transmitting, to a base station (BS), feedback information based on the PSFCH through the PUCCH in the slot by the first UE,

wherein the value related to the number of slots is applied based on a last of slots for the PUCCH, overlapped with a slot for the PSFCH on a time axis.

2. The method according to claim 1 , wherein the slot for transmitting the PUCCH is a slot related to the value related to the number of slots, counted from a slot following the last slot.

3. The method according to claim 1 , wherein the slot for the PSFCH and a slot for the PUCCH are of different sizes.

4. The method according to claim 1 , wherein the slots for the PUCCH are slots available for transmission of the PUCCH.

5. The method according to claim 1 , wherein the slot for the PSFCH are one of a slot in which the PSFCH is received and a slot scheduled for reception of the PSFCH.

6. The method according to claim 1 , wherein the feedback information is hybrid automatic repeat request (HARD)-acknowledgment (ACK) information related to the PSFCH for a physical sidelink shared channel (PSSCH) transmitted by the first UE, and

wherein the HARQ-ACK information related to the PSFCH is 1 bit.

7. The method according to claim 6 , wherein the value related to the number of slots is included in downlink control information (DCI) received by the first UE.

8. The method according to claim 1 , wherein the DCI is received on a physical downlink control channel (PDCCH) related to the PSSCH transmitted by the first UE.

9. The method according to claim 1 , wherein the value related to the number of slots is received by higher-layer signaling.

10. The method according to claim 1 , further comprising:

transmitting a PSSCH to a second UE by the first UE; and

receiving the PSFCH for the PSSCH from the second UE by the first UE.

11. An apparatus in a wireless communication system, comprising:

at least one processor; and

at least one computer memory operatively coupled to the at least one processor and storing instructions causing the at least one processor to perform operations, wherein the operations include:

determining a slot for transmitting a physical uplink control channel (PUCCH) based on a value related to the number of slots from a physical sidelink feedback channel (PSFCH) to the PUCCH by a first user equipment (UE); and

transmitting, to a base station (BS), feedback information based on the PSFCH through the PUCCH in the slot by the first UE,

wherein the value related to the number of slots is applied based on a last of slots for the PUCCH, overlapped with a slot for the PSFCH on a time axis.

12. A computer-readable storage medium storing at least one computer program including instructions which, when executed by at least one processor, cause the at least one processor to perform operations for a user equipment (UE),

wherein the operations include:

determining a slot for transmitting a physical uplink control channel (PUCCH) based on a value related to the number of slots from a physical sidelink feedback channel (PSFCH) to the PUCCH by a first UE; and

transmitting, to a base station (BS), feedback information based on the PSFCH through the PUCCH in the slot by the first UE,

wherein the value related to the number of slots is applied based on a last of slots for the PUCCH, overlapped with a slot for the PSFCH on a time axis.

13. The apparatus according to claim 11 , wherein the first UE is an autonomous driving vehicle or included in the autonomous driving vehicle.