Method and device for repeatedly transmitting downlink control information when performing network cooperative communication

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

• transmitting, to a terminal, semi persistent scheduling (SPS) configuration information and control channel configuration information;
• determining deactivation of an activated SPS physical downlink shared channel (PDSCH);
• producing repetitively transmitted downlink control information (DCI) each including information for deactivating the activated SPS PDSCH;
• and
• transmitting, to the terminal, the repetitively transmitted DCI via a plurality of physical downlink control channels (PDCCHs) based on the control channel configuration information,
• wherein data is not transmitted in the deactivated SPS PDSCH.

A terminal in a communication system, the terminal comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a base station, semi persistent scheduling (SPS) configuration information and control channel configuration information,
• receive, from the base station, repetitively transmitted downlink control information (DCI) via a plurality of physical downlink control channels (PDCCHs) based on the control channel configuration information, and
• identify whether an activated SPS PDSCH is deactivated based on information included in each of the repetitively transmitted DCI,
• wherein, in a case that the activated SPS PDSCH is deactivated, decoding of data in the deactivated SPS PDSCH is not attempted.

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

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• transmit, to a terminal, semi persistent scheduling (SPS) configuration information and control channel configuration information,
• determine deactivation of an activated SPS physical downlink shared channel (PDSCH),
• produce repetitively transmitted downlink control information (DCI) each including information for deactivating the activated SPS PDSCH, and
• control to transmit, to the terminal, the repetitively transmitted DCI via a plurality of physical downlink control channels (PDCCHs) based on the control channel configuration information,
• wherein the data is not transmitted in the deactivated SPS PDSCH.