Method and device for transmitting data in wireless cellular communication system

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

• transmitting, to a terminal through a radio resource control (RRC) signaling, information on a number of code block groups per transport block (TB), wherein each code block group comprises at least one code block;
• identifying code block groups for a TB, based on a number of code blocks (CBs) for the TB and the number of code block groups per TB;
• transmitting, to the terminal, the identified code block groups for the TB and control information scheduling the TB;
• and
• receiving, from the terminal, hybrid automatic repeat request (HARQ) feedback information for the identified code block groups of the TB.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a controller configured to:
• control the transceiver to receive, from a base station through a radio resource control (RRC) signaling, information on a number of code block groups per transport block (TB), wherein each code block group comprises at least one code block,
• control the transceiver to receive, from the base station, a TB and control information scheduling the TB,
• identify code block groups for the TB, based on a number of code blocks (CBs) for the TB and the number of code block groups per TB, wherein the number of CBs for the TB is determined based on the control information, and wherein the number of code block groups per TB is determined based on the information,
• generate hybrid automatic repeat request (HARQ) feedback information for the identified code block groups of the TB, and
• control the transceiver to transmit, to the base station, the generated HARQ feedback information.

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

• a transceiver;
• and
• a controller configured to:
• control the transceiver to transmit, to a terminal through a radio resource control (RRC) signaling, information on a number of code block groups per transport block (TB), wherein each code block group comprises at least one code block,
• identify code block groups for a TB based on a number of code blocks (CBs) for the TB and the number of code block groups per TB,
• control the transceiver to transmit, to the terminal, the identified code block groups for the TB and control information scheduling the TB, and
• control the transceiver to receive, from the terminal, hybrid automatic repeat request (HARQ) feedback information for the identified code block groups of the TB.