Method and device for communication using network-controlled repeater in wireless communication system

A network-controlled repeater (NCR) for amplifying and forwarding a signal to a user equipment (UE) in a wireless communication system, the NCR comprising:

• a transceiver;
• and
• a processor configured to:
• receive, via the transceiver from a base station, configuration information including information on time resources associated with an access link between the NCR and the UE, wherein information on at least one time resource among the information on the time resources further includes information on at least one first slot offset for the at least one time resource,
• transmit, to the base station via the transceiver, capability information including information indicating a value of a second slot offset for a reference slot,
• receive, via the transceiver from the base station, downlink control information (DCI) on a physical downlink control channel (PDCCH) in a first slot, the DCI including information on at least one beam and information on the at least one time resource corresponding to the at least one beam,
• identify the reference slot associated with the at least one time resource, based on the first slot and the value of the second slot offset,
• identify at least one second slot for the at least one time resource, based on the reference slot and the at least one first slot offset, wherein the at least one time resource starts at the at least one second slot that is offset by the at least one first slot offset from the reference slot, and
• transmit, to the UE via the transceiver, the signal by using the at least one beam and the at least one time resource corresponding to the at least one beam.

A method performed by a base station using a network-controlled repeater (NCR) for amplifying and forwarding a signal to a user equipment (UE) in a wireless communication system, the method comprising:

• transmitting, to the NCR, configuration information including information on time resources associated with an access link between the NCR and the UE, wherein information on at least one time resource among the information on the time resources further includes information on at least one first slot offset for the at least one time resource;
• receiving, from the NCR, capability information including information indicating a value of a second slot offset for a reference slot;
• transmitting, to the NCR, downlink control information (DCI) on a physical downlink control channel (PDCCH) in a first slot, the DCI including information on at least one beam and information on the at least one time resource corresponding to the at least one beam;
• identifying the reference slot associated with the at least one time resource, based on the first slot and the value of the second slot offset;
• identifying at least one second slot for the at least one time resource, based on the reference slot and the at least one first slot offset, wherein the at least one time resource starts at the at least one second slot that is offset by the at least one first slot offset from the reference slot;
• and
• transmitting the signal to the UE through the NCR using the at least one beam and the at least one time resource corresponding to the at least one beam.

A base station using a network-controlled repeater (NCR) for amplifying and forwarding a signal to a user equipment (UE) in a wireless communication system, the base station comprising:

• a transceiver;
• and
• a processor configured to:
• transmit, to the NCR via the transceiver, configuration information including information on time resources associated with an access link between the NCR and the UE, wherein information on at least one time resource among the information on the time resources further includes information on at least one first slot offset for the at least one time resource,
• receive, via the transceiver from the NCR, capability information including information indicating a value of a second slot offset for a reference slot,
• transmit, to the NCR via the transceiver, downlink control information (DCI) on a physical downlink control channel (PDCCH) in a first slot, the DCI including information on at least one beam and information on the at least one time resource corresponding to the at least one beam,
• identify the reference slot associated with the at least one time resource, based on the first slot and the value of the second slot offset,
• identify at least one second slot for the at least one time resource, based on the reference slot and the at least one first slot offset, wherein the at least one time resource starts at the at least one second slot that is offset by the at least one first slot offset from the reference slot, and
• transmit, via the transceiver, the signal to the UE through the NCR using the at least one beam and the at least one time resource corresponding to the at least one beam.