Method for transmitting physical uplink control channel in wireless communication system supporting unlicensed band and device supporting same

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

receiving, through a radio resource control (RRC) signaling, physical uplink control channel (PUCCH) resource information;

receiving, through a first physical downlink control channel (PDCCH), downlink (DL) grant-downlink control information (DCI);

receiving, through a second PDCCH, uplink (UL) grant-DCI for scheduling a physical uplink shared channel (PUSCH);

transmitting, based on the DL grant-DCI, a physical uplink control channel (PUCCH); and

transmitting, based on the UL grant-DCI, the scheduled PUSCH,

wherein the PUCCH resource information includes a plurality of {resource block (RB) information, cyclic shift (CS) information}-sets for configuring a plurality of PUCCH resources in the UE, the RB information including an RB index related to a PUCCH frequency hopping,

wherein the DL-grant-DCI includes a PUCCH resource indicator field for indicating a PUCCH resource among the plurality of PUCCH resources, and

wherein the PUCCH is transmitted based on a {RB information, CS information}-set for the PUCCH resource indicated by the PUCCH resource indicator field in the DL-grant DCI.

2. The method of claim 1 , wherein the PUSCH is transmitted without a time gap after the PUCCH.

3. A device in a wireless communication system, the device comprising:

at least one processor; and

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

receiving, through a radio resource control (RRC) signaling, physical uplink control channel (PUCCH) resource information;

receiving, through a first physical downlink control channel (PDCCH), downlink (DL) grant-downlink control information (DCI);

receiving, through a second PDCCH, uplink (UL) grant-DCI for scheduling a physical uplink shared channel (PUSCH);

transmitting, based on the DL grant-DCI, a physical uplink control channel (PUCCH); and

transmitting, based on the UL grant-DCI, the scheduled PUSCH,

wherein the PUCCH resource information includes a plurality of {resource block (RB) information, cyclic shift (CS) information}-sets for configuring a plurality of PUCCH resources in the device, the RB information including an RB index related to a PUCCH frequency hopping,

wherein the DL-grant-DCI includes a PUCCH resource indicator field for indicating a PUCCH resource among the plurality of PUCCH resources, and

wherein the PUCCH is transmitted based on a {RB information, CS information}-set for the PUCCH resource indicated by the PUCCH resource indicator field in the DL-grant DCI.

4. The device of claim 3 , wherein the PUSCH is transmitted without a time gap after the PUCCH.

5. The device of claim 3 , further comprising:

a transceiver configured to transmit or receive a radio signal under control of the processor,

wherein the device is a user equipment (UE).

6. The method of claim 1 , wherein the PUCCH and the PUSCH are transmitted in an unlicensed band of the wireless communication system, and

wherein based on i) the PUCCH and the PUSCH being consecutive UL transmissions and ii) as a result of performing a listen before talk (LBT) procedure, the PUCCH having been transmitted by the UE before a transmission timing of the PUSCH, the UE continues to perform at least one remaining UL transmission of the set including the PUSCH.

7. The method of claim 1 , wherein the UL grant-DCI includes information related to a listen before talk (LBT) procedure.

8. The method of claim 1 , wherein the DL-grant DCI is DCI for scheduling a physical downlink shared channel (PDSCH).

9. The method of claim 1 , wherein a transmission timing of the PUCCH is indicated by the DL-grant DCI.

10. A method of receiving a signal by a base station (BS) in a wireless communication system, the method comprising:

transmitting, through a radio resource control (RRC) signaling, physical uplink control channel (PUCCH) resource information;

transmitting, through a first physical downlink control channel (PDCCH), downlink (DL) grant-downlink control information (DCI);

transmitting, through a second PDCCH, uplink (UL) grant-DCI for scheduling a physical uplink shared channel (PUSCH);

receiving, based on the DL grant-DCI, a physical uplink control channel (PUCCH); and

receiving, based on the UL grant-DCI, the scheduled PUSCH,

wherein the PUCCH resource information includes a plurality of {resource block (RB) information, cyclic shift (CS) information}-sets for configuring a plurality of PUCCH resources, the RB information including an RB index related to a PUCCH frequency hopping,

wherein the DL-grant-DCI includes a PUCCH resource indicator field for indicating a PUCCH resource among the plurality of PUCCH resources, and

wherein the PUCCH is transmitted based on a {RB information, CS information}-set for the PUCCH resource indicated by the PUCCH resource indicator field in the DL-grant DCI.

11. A base station (BS) comprising:

at least one processor; and

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

transmitting, through a radio resource control (RRC) signaling, physical uplink control channel (PUCCH) resource information;

transmitting, through a first physical downlink control channel (PDCCH), downlink (DL) grant-downlink control information (DCI);

transmitting, through a second PDCCH, uplink (UL) grant-DCI for scheduling a physical uplink shared channel (PUSCH);

receiving, based on the DL grant-DCI, a physical uplink control channel (PUCCH); and

receiving, based on the UL grant-DCI, the scheduled PUSCH,

wherein the PUCCH resource information includes a plurality of {resource block (RB) information, cyclic shift (CS) information}-sets for configuring a plurality of PUCCH resources, the RB information including an RB index related to a PUCCH frequency hopping,

wherein the DL-grant-DCI includes a PUCCH resource indicator field for indicating a PUCCH resource among the plurality of PUCCH resources, and

wherein the PUCCH is transmitted based on a {RB information, CS information}-set for the PUCCH resource indicated by the PUCCH resource indicator field in the DL-grant DCI.