Method and apparatus for transmitting and receiving control information in wireless communication system

A method, performed by a base station (BS), of transmitting and receiving control information in a wireless communication system, the method comprising:

• providing an upper layer parameter about preemption to a user equipment (UE);
• providing, to the UE, a Radio Network Temporary Identifier (RNTI) for downlink control information (DCI) comprising a preemption indicator;
• and
• transmitting, to the UE, the DCI comprising the preemption indicator via a physical downlink control channel (PDCCH),
• wherein a resource block (RB) and a symbol that are indicated by the DCI comprising the preemption indicator are configured not to allow transmission for the UE, and
• the DCI comprising the preemption indicator is not applied to reception of at least one of a synchronization signal (SS) and a physical broadcast channel (PBCH).

A user equipment (UE) for transmitting and receiving control information in a wireless communication system, the UE comprising:

• a transceiver;
• a communicator;
• a memory storing one or more instructions;
• and
• a processor configured to execute the one or more instructions stored in the memory,
• wherein the processor is further configured to execute the one or more instructions to
• obtain a Radio Network Temporary Identifier (RNTI) for downlink control information (DCI) comprising a preemption indicator when an upper layer parameter about preemption is provided,
• perform monitoring on a physical downlink control channel (PDCCH) via which the DCI comprising the preemption indicator is transmitted, based on the RNTI for the DCI comprising the preemption indicator, and,
• when the DCI comprising the preemption indicator is detected as a result of the performing of the monitoring, determine that transmission for the UE does not exist in a resource block (RB) and a symbol, which are indicated by the DCI comprising the preemption indicator,
• wherein the DCI comprising the preemption indicator is not applied to reception of at least one of a synchronization signal (SS) and a physical broadcast channel (PBCH).

A base station (BS) for transmitting and receiving control information in a wireless communication system, the BS comprising:

• a transceiver;
• a communicator;
• a memory storing one or more instructions;
• and
• a processor configured to execute the one or more instructions stored in the memory,
• wherein the processor is further configured to execute the one or more instructions to
• provide an upper layer parameter about preemption to a user equipment (UE),
• provide, to the UE, a Radio Network Temporary Identifier (RNTI) for downlink control information (DCI) comprising a preemption indicator, and
• transmit, to the UE, the DCI comprising the preemption indicator via a physical downlink control channel (PDCCH),
• wherein a resource block (RB) and a symbol that are indicated by the DCI comprising the preemption indicator are configured not to allow transmission for the UE, and
• the DCI comprising the preemption indicator is not applied to reception of at least one of a synchronization signal (SS) and a physical broadcast channel (PBCH).