Control channel transmitting and receiving method and apparatus in wireless communication system

A method performed by a base station in a communication system, the method comprising:

• transmitting, to a terminal, configuration information for a preemption indication via higher layer signaling;
• and
• transmitting, to the terminal, downlink control information (DCI) including a preemption indicator indicating resources on a physical downlink control channel (PDCCH), the DCI being scrambled by a radio network temporary identifier (RNTI) for the preemption indicator,
• wherein the preemption indicator indicates the resources where no transmission for the terminal exists.

A terminal in a communication system, the terminal comprising:

• a transceiver;
• a controller coupled with the transceiver and configured to:
• receive, from a base station, configuration information for a preemption indication via higher layer signaling,
• receive, from the base station, downlink control information (DCI) including a preemption indicator on a physical downlink control channel (PDCCH), the DCI being scrambled by a radio network temporary identifier (RNTI) for the preemption indicator, and
• identify resources indicated by the preemption indicator,
• wherein the preemption indicator indicates the resources where no transmission for the terminal exists.

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

• a transceiver;
• a controller coupled with the transceiver and configured to:
• transmit, to a terminal, configuration information for a preemption indication via higher layer signaling, and
• transmit, to the terminal, downlink control information (DCI) including a preemption indicator indicating resources on a physical downlink control channel (PDCCH), the DCI being scrambled by a radio network temporary identifier (RNTI) for the preemption indicator,
• wherein the preemption indicator indicates the resources where no transmission for the terminal exists.