Harq process management method and apparatus for slot aggregation

A method performed by a base station for transmitting repetitive data in consecutive slots, the method comprising:

• transmitting, to a terminal, configuration information including first information on repetitive data across consecutive slots and second information on a set of candidates of hybrid automatic repeat request (HARQ) feedback timing via a radio resource control (RRC) signaling;
• transmitting, to the terminal, downlink control information (DCI), wherein the DCI includes third information on resource assignment and fourth information for indicating the HARQ feedback timing;
• transmitting, to the terminal, the repetitive data across the consecutive slots based on the first information on the repetitive data and the third information on the resource assignment;
• and
• receiving, from the terminal, an acknowledgement (ACK) indicating that the repetitive data across the consecutive slots are successfully received based on the HARQ feedback timing,
• wherein the HARQ feedback timing is identified among the set of candidates based on the second information on the set of candidates and the fourth information for indicating the HARQ feedback timing.

A terminal comprising:

• a transmitter configured to transmit a signal to a base station;
• a receiver configured to receive a signal from the base station;
• and
• a controller coupled with the transmitter and the receiver and configured to:
• receive, from the base station via the receiver, configuration information including first information on repetitive data across consecutive slots and second information on a set of candidates of hybrid automatic repeat request (HARQ) feedback timing via a radio resource control (RRC) signaling,
• receive, from the base station via the receiver, downlink control information (DCI), wherein the DCI includes third information on resource assignment and fourth information for indicating the HARQ feedback timing,
• receive, from the base station via the receiver, the repetitive data across the consecutive slots based on the first information on the repetitive data and the third information on the resource assignment,
• in case that the repetitive data across the consecutive slots are successfully received, identify the HARQ feedback timing among the set of candidates based on the second information on the set of candidates and the fourth information for indicating the HARQ feedback timing, and
• transmit, to the base station via the transmitter, an acknowledgment (ACK) based on the HARQ feedback timing.

A base station comprising:

• a transmitter configured to transmit a signal to a terminal;
• a receiver configured to receive a signal from the terminal;
• and
• a controller coupled with the transmitter and the receiver and configured to:
• transmit, to the terminal via the transmitter, configuration information including first information on repetitive data across consecutive slots and second information on a set of candidates of hybrid automatic repeat request (HARQ) feedback timing via a radio resource control (RRC) signaling,
• transmit, to the terminal via the transmitter, downlink control information (DCI), wherein the DCI includes third information on resource assignment and fourth information for indicating the HARQ feedback timing,
• transmit, to the terminal via the transmitter, the repetitive data across the consecutive slots based on the first information on the repetitive data and the third information on the resource assignment, and
• receive, from the terminal via the receiver, an acknowledgement (ACK) indicating that the repetitive data across the consecutive slots are successfully received based on the HARQ feedback timing,
• wherein the HARQ feedback timing is identified among the set of candidates based on the second information on the set of candidates and the fourth information for indicating the HARQ feedback timing.