Method for transmitting/receiving HARQ ACK/NACK signal in wireless communication system, and device therefor
AssigneeLG Electronics Inc.
InventorsBonghoe Kim, Kijun Kim, Byounghoon Kim, Joonkui Ahn
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Abstract
A method for transmitting a hybrid automatic repeat and request (HARQ) ACK/NACK signal by a reception side in a wireless communication system may further comprise the steps of: receiving a transmission block including a plurality of code blocks from a transmission side; decoding the received transmission block; and transmitting an ACK/NACK for the transmission block in units of code block groups, wherein the code block group includes at least one code block.
Claims18
A method for transmitting a hybrid automatic repeat and request acknowledgement (HARQ-ACK) signal by a user equipment in a wireless communication system, the method comprising:
- receiving information about a maximum number of code block groups (CBGs) per transport block (TB) from a base station;
- receiving a TB containing a plurality of code blocks from the base station, one or more CBGs being determined from the plurality of code blocks;
- based on a number of the one or more CBGs being less than the maximum number of CBGs for the TB, generating a negative-acknowledgement (NACK) value for each of at least one remaining CBG other than the one or more CBGs from among the maximum number of CBGs for the TB;
- and
- transmitting the HARQ-ACK signal including the generated NACK value to the base station.
A user equipment configured to transmit a hybrid automatic repeat and request acknowledgement (HARQ-ACK) signal in a wireless communication system, the user equipment comprising:
- a receiver configured to receive information about a maximum number of code block groups (CBGs) per transport block (TB) from a base station and receive a TB containing a plurality of code blocks from the base station, one or more CBGs being determined from the plurality of code blocks;
- a processor configured to, based on a number of the one or more CBGs being less than the maximum number of CBGs for the TB, generate a negative-acknowledgement (NACK) value for each of at least one remaining CBG other than the one or more CBGs from among the maximum number of CBGs for the TB;
- and
- a transmitter configured to transmit the HARQ-ACK signal including the generated NACK value to the base station.
An apparatus for a user equipment configured to transmit a hybrid automatic repeat and request acknowledgement (HARQ-ACK) signal in a wireless communication system, the apparatus comprising:
- a memory containing executable codes;
- and
- a processor operatively coupled to the memory and configured to perform the executable codes to implement operations comprising:
- receiving information about a maximum number of code block groups (CBGs) per transport block (TB) from a base station;
- receiving a TB containing a plurality of code blocks from the base station, one or more CBGs being determined from the plurality of code blocks;
- based on a number of the one or more CBGs being less than the maximum number of CBGs for the TB, generating a negative-acknowledgement (NACK) value for each of at least one remaining CBG other than the one or more CBGs from among the maximum number of CBGs for the TB;
- and
- transmitting the HARQ-ACK signal including the generated NACK value to the base station.
Dependencies are inferred from the claim text.