Method and apparatus for transmitting and receiving data in hybrid automatic repeat request process

User equipment (UE) for transmitting uplink data, the UE comprising:

• a transceiver;
• and
• at least one processor coupled to the transceiver and configured to:
• receive, from a base station, configuration information for an uplink resource,
• identify a Hybrid Automatic Repeat Request (HARQ) process identifier (ID) based on the configuration information,
• start a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) based on a transmission for the uplink data of the HARQ process ID, wherein the CGRT runs for a duration when a retransmission by the UE for the uplink data of the HARQ process ID is restricted after the transmission for the uplink data of the HARQ process ID,
• in case that downlink feedback information (DFI) for the uplink data is received, stop the CGRT, and stop the CGT based on the DFI indicating acknowledgement,
• in case that the started CGT is running, restart the CGRT based on a retransmission for the uplink data of the HARQ process ID, and
• in case that the started CGT is expired and the CGRT is running, stop the CGRT.

A method, performed by a base station, of receiving uplink data, the method comprising:

• transmitting, to user equipment (UE), configuration information for an uplink resource;
• and
• receiving, from the UE, the uplink data of a Hybrid Automatic Repeat Request (HARQ) process identifier (ID), wherein the HARQ process ID is identified based on the configuration information,
• wherein a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) start, based on a transmission for the uplink data of the HARQ process ID, wherein the CGRT runs for a duration when a retransmission by the UE for the uplink data of the HARQ process ID is restricted after the transmission for the uplink data of the HARQ process ID,
• wherein in case that downlink feedback information (DFI) for the uplink data is received, the CGRT stops, and the CGT stops based on the DFI indicating acknowledgement,
• wherein in case that the started CGT is running, the CGRT restarts based on a retransmission for the uplink data corresponding to the HARQ process ID, and
• wherein in case that the started CGT is expired and the CGRT is running, the CGRT stops.

A base station for receiving uplink data, the base station comprising:

• a transceiver;
• and
• at least one processor coupled to the transceiver and configured to:
• transmit, to user equipment (UE), configuration information for an uplink resource, and
• receive, from the UE, the uplink data of a Hybrid Automatic Repeat Request (HARQ) process identifier (ID), wherein the HARQ process ID is identified based on the configuration information,
• wherein a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) start, based on a transmission for the uplink data of the HARQ process ID, wherein the CGRT runs for a duration when a retransmission by the UE for the uplink data of the HARQ process ID is restricted after the transmission for the uplink data of the HARQ process ID,
• wherein in case that downlink feedback information (DFI) for the uplink data is received, the CGRT stops, and the CGT stops based on the DFI indicating acknowledgement,
• wherein in case that the started CGT is running, the CGRT restarts based on a retransmission for the uplink data of the HARQ process ID, and
• wherein in case that the started CGT is expired and the CGRT is running, the CGRT stops.