Method and device for transmitting or receiving uplink or downlink in wireless communication system

A user equipment (UE) comprising:

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• transmit, to a base station through the at least one transceiver, capability information including first information related to whether the UE supports an activation of only a single panel among a plurality of panels in a single time unit or activation of the plurality of panels in a single time unit;
• receive, from the base station through the at least one transceiver, second information related to at least one transmission occasion (TO) based on the capability information;
• and
• based on the second information, perform uplink transmission or downlink reception in the at least one TO,
• wherein the capability information includes information on a time it takes to activate a single panel, and a minimum time offset between a time when downlink control information (DCI) including the second information is received and an initial TO at which the uplink transmission or the downlink reception is performed, and
• wherein based on the UE supporting an activation of the plurality of panels in a single time unit and only a first panel of the plurality of panels being activated:
• i) a first time offset between a time when the DCI including the second information is received and a time when the downlink reception scheduled by the DCI is performed and ii) a second time offset between a time when the downlink reception is performed and a TO at which the uplink transmission related to the downlink reception is first performed are received from the base station, and
• a sum of the first time offset and the second time offset has a value equal to or greater than at least one of the time it takes to activate the single panel or the minimum time offset.

A base station comprising:

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• receive, from a user equipment (UE) through the at least one transceiver, capability information including first information related to whether the UE supports an activation of only a single panel among a plurality of panels in a single time unit or activation of the plurality of panels in a single time unit;
• transmit, to the UE through the at least one transceiver, second information related to at least one transmission occasion (TO) based on the capability information;
• and
• based on the second information, perform uplink reception or downlink transmission in the at least one TO,
• wherein the capability information includes information on a time it takes to activate a single panel, and a minimum time offset between a time when downlink control information (DCI) including the second information is transmitted and an initial TO at which the uplink reception or the downlink transmission is performed, and
• wherein based on the UE supporting an activation of the plurality of panels in a single time unit and only a first panel of the plurality of panels being activated:
• i) a first time offset between a time when the DCI including the second information is transmitted and a time when the downlink transmission scheduled by the DCI is performed and ii) a second time offset between a time when the downlink transmission is performed and a TO at which the uplink reception related to the downlink transmission is first performed are transmitted to the UE, and
• a sum of the first time offset and the second time offset has a value equal to or greater than at least one of the time it takes to activate the single panel or the minimum time offset.