Method and apparatus for determining harq process id in communication system

A method of operating a base station in a communication system, the method comprising:

• transmitting configuration information associated with at least one semi-persistent scheduling (SPS) to a terminal;
• transmitting, to the terminal, an SPS activation signal indicating activation of a first SPS among the at least one SPS;
• identifying whether a first physical downlink shared channel (PDSCH) reception occurrence among at least one PDSCH reception occurrence associated with the first SPS comprises multiple slots, based on configuration information associated with the first SPS and the SPS activation signal;
• determining one slot among the multiple slots as a reference slot, in a case that the first PDSCH reception occurrence comprises the multiple slots;
• and
• determining a hybrid automatic repeat request (HARQ) process identifier (ID), based on information on the determined reference slot.

A terminal of a communication system, the terminal comprising:

• a transceiver;
• and
• a controller connected to the transceiver,
• wherein the controller is configured to:
• receive configuration information associated with at least one semi-persistent scheduling (SPS) from a base station,
• receive, from the base station, an SPS activation signal indicating activation of a first SPS among the at least one SPS,
• identify whether a first physical downlink shared channel (PDSCH) reception occurrence among at least one PDSCH reception occurrence associated with the first SPS comprises multiple slots, based on configuration information associated with the first SPS and the SPS activation signal,
• determine one slot among the multiple slots as a reference slot, in case that the first PDSCH reception occurrence comprises the multiple slots, and
• determine a hybrid automatic repeat request (HARQ) process identifier (ID), based on information on the determined reference slot.

A base station of a communication system, the base station comprising:

• a transceiver;
• and
• a controller connected to the transceiver,
• wherein the controller is configured to:
• transmit configuration information associated with at least one semi-persistent scheduling (SPS) to a terminal,
• transmit, to the terminal, an SPS activation signal indicating activation of a first SPS among the at least one SPS,
• identify whether a first physical downlink shared channel (PDSCH) reception occurrence among at least one PDSCH reception occurrence associated with the first SPS comprises multiple slots, based on configuration information associated with the first SPS and the SPS activation signal,
• determine one slot among the multiple slots as a reference slot, in case that the first PDSCH reception occurrence comprises the multiple slots, and
• determine a hybrid automatic repeat request (HARQ) process identifier (ID), based on information on the determined reference slot.