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

A device for wireless communication, the device comprising:

• at least one memory configured to store one or more instructions;
• and
• at least one processor configured to perform operations by executing the one or more instructions, the operations comprising:
• receiving, through radio resource control (RRC) signaling, information for configuring a code block group (CBG)-based HARQ-ACK;
• receiving, through a physical downlink control channel (PDCCH), downlink control information (DCI) for scheduling one or more transport blocks (TBs);
• performing, based on the DCI, a data reception for the one or more TBs;
• and
• transmitting a HARQ-ACK response including ACK/negative-ACK(ACK/NACK) information for the one or more TBs,
• wherein the device determines, based on the DCI, whether to configure the ACK/NACK information in the HARQ-ACK response as the CBG-based HARQ-ACK or as a TB-based HARQ-ACK.

A method of receiving hybrid automatic repeat request-acknowledgement (HARQ-ACK) information by a device for wireless communication, the method comprising:

• transmitting, through radio resource control (RRC) signaling, information for configuring a code block group (CBG)-based HARQ-ACK;
• transmitting, through a physical downlink control channel (PDCCH), downlink control information (DCI) for scheduling one or more transport blocks (TBs);
• performing, based on the DCI, a data transmission for the one or more TBs;
• and
• receiving a HARQ-ACK response including ACK/negative-ACK(ACK/NACK) information for the one or more TBs,
• wherein the device determines, based on the DCI, whether the ACK/NACK information in the HARQ-ACK response is configured as the CBG-based HARQ-ACK or as a TB-based HARQ-ACK.

A device for wireless communication, the device comprising:

• at least one memory configured to store one or more instructions;
• and
• at least one processor configured to perform operations by executing the one or more instructions, the operations comprising:
• transmitting, through radio resource control (RRC) signaling, information for configuring a code block group (CBG)-based HARQ-ACK;
• transmitting, through a physical downlink control channel (PDCCH), downlink control information (DCI) for scheduling one or more transport blocks (TBs);
• performing, based on the DCI, a data transmission for the one or more TBs;
• and
• receiving a HARQ-ACK response including ACK/negative-ACK(ACK/NACK) information for the one or more TBs,
• wherein the at least one processor determines, based on the DCI, whether the ACK/NACK information in the HARQ-ACK response is configured as the CBG-based HARQ-ACK or as a TB-based HARQ-ACK.