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 execute the one or more instructions in the at least one memory,
• wherein, upon the execution of the one or more instructions, the at least one processor obtains, through a radio resource control (RRC) signaling, a CBG number configuration per a single transport block (TB);
• performs a data reception for a first TB including a plurality of CBGs, and determines, in response to the data reception, respective Hybrid ARQ Acknowledgement (HARQ-ACK) information per each CBG of the first TB, based on a result of the data reception for the first TB, and
• wherein, for M<K, where M denotes a value configured through the CBG number configuration, and K denotes a total number of code blocks (CBs) in the first TB:
• the plurality of CBGs in the first TB comprise ‘mod (K, M)’ CBGs each having a first number of CBs, and ‘M−mod (K, M)’ CBGs each having a second number of CBs, and
• the first number satisfies ‘ceiling (K/M)’, and the second number satisfies ‘floor (K/M)’.

A method of receiving code block group (CBG)-based Hybrid ARQ Acknowledgement (HARQ-ACK) information by a wireless communication device, the method comprising:

• transmitting, through a radio resource control (RRC) signaling, a CBG number configuration per a single transport block (TB);
• performing a data transmission for a first TB including a plurality of CBGs;
• receiving, in response to the data transmission, respective HARQ-ACK information per each CBG of the first TB,
• wherein, for M<K, where M denotes a value configured through the CBG number configuration, and K denotes a total number of code blocks (CBs) in the first TB,
• the plurality of CBGs in the first TB comprise ‘mod (K, M)’ CBGs each having a first number of CBs, and ‘M−mod (K, M)’ CBGs each having a second number of CBs, and
• the first number satisfies ‘ceiling (K/M)’, and the second number satisfies ‘floor (K/M)’.

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 execute the one or more instructions in the at least one memory,
• wherein, upon the execution of the one or more instructions, the at least one processor performing a radio resource control (RRC) signaling for transmitting a CBG number configuration per a single transport block (TB), performs a data transmission for a first TB including a plurality of CBGs and obtains, in response to the data transmission, respective HARQ-ACK information per each CBG of the first TB,
• wherein, for M<K, where M denotes a value configured through the CBG number configuration, and K denotes a total number of code blocks (CBs) in the first TB:
• the plurality of CBGs in the first TB comprise ‘mod (K, M)’ CBGs each having a first number of CBs, and ‘M−mod (K, M)’ CBGs each having a second number of CBs, and
• the first number satisfies ‘ceiling (K/M)’, and the second number satisfies ‘floor (K/M)’.