Method and apparatus for transmitting and receiving signals in wireless communication system

A user equipment (UE) configured to transmit and receive signals in a wireless communication system comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one memory operatively connected to the at least one processor, and configured to store instructions such that the at least one processor performs specific operations by executing the instructions,
• wherein the specific operations include:
• receiving downlink control information (DCI) for uplink (UL) data transmission;
• performing a listen-before-talk (LBT) operation on a sub-band where physical uplink shared channel (PUSCH) resources are located;
• and
• transmitting the uplink (UL) data on the PUSCH resources based on the LBT operation,
• wherein, based on not only one fact that the PUSCH resources overlap at least one candidate physical uplink control channel (PUCCH) resource from among a plurality of candidate PUCCH resources, but also another fact that a processing time of a first candidate PUCCH resource indicating the earliest resource in a time domain from among the candidate PUCCH resources is equal to or longer than a minimum processing time of the UE, uplink control information (UCI) for the candidate PUCCH resources is piggybacked on the PUCCH resources.

A device configured to operate for a user equipment (UE) comprising:

• at least one processor;
• and
• at least one memory operatively connected to the at least one processor, and configured to store instructions such that the at least one processor performs specific operations by executing the instructions,
• wherein the specific operations include:
• receiving downlink control information (DCI) for uplink (UL) data transmission;
• performing a listen-before-talk (LBT) operation on a sub-band where physical uplink shared channel (PUSCH) resources are located;
• and
• transmitting the uplink (UL) data on the PUSCH resources based on the LBT operation,
• wherein, based on not only one fact that the PUSCH resources overlap at least one candidate physical uplink control channel (PUCCH) resource from among a plurality of candidate PUCCH resources, but also another fact that a processing time of a first candidate PUCCH resource indicating the earliest resource in a time domain from among the candidate PUCCH resources is equal to or longer than a minimum processing time of the UE, uplink control information (UCI) for the candidate PUCCH resources is piggybacked on the PUCCH resources.