Method and device for transmitting data

A method of a base station in a wireless communication system, the method comprising:

• transmitting, to a user equipment (UE), a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) format;
• and
• receiving hybrid automatic request acknowledgement (HARQ-ACK) information for the PDSCH from the UE,
• wherein the HARQ-ACK information for the PDSCH is generated based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback,
• wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes a HARQ-ACK information bit per CBG, and
• wherein in case that the DCI format is the second DCI format for fallback, the HARQ-ACK information includes a HARQ-ACK information bit per transport block.

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver;
• and
• at least one processor configured to:
• receive, from a base station, a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) form;
• generate hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the PDSCH based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback;
• and
• transmit the HARQ-ACK information to the base station,
• wherein the at least one processor is further configured to generate the HARQ-ACK information by:
• in case that the DCI format is the first DCI format supporting CBG, generating a HARQ-ACK information bit per CBG, and
• in case that the DCI format is the second DCI format for fallback, generating a HARQ-ACK information bit per transport block.

A base station in a wireless communication system, the base station comprising:

• a transceiver;
• and
• at least one processor configured to:
• transmit, to a user equipment (UE), a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) format, and
• receive hybrid automatic request acknowledgement (HARQ-ACK) information for the PDSCH from the UE,
• wherein the HARQ-ACK information for the PDSCH is generated based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback,
• wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes a HARQ-ACK information bit per CBG, and
• wherein in case that the DCI format is the second DCI format for fallback, the HARQ-ACK information includes a HARQ-ACK information bit per transport block.