Method for reporting beam failure of terminal in wireless communication system, and terminal and base station for supporting same

A user equipment (UE) operating based on one primary cell (PCell) and at least one secondary cell (SCell) in a wireless communication system, the UE comprising:

• at least one transmitter;
• at least one receiver;
• at least one processor;
• and
• at least one memory operatively coupled to the at least one processor and storing instructions which when executed, cause the at least one processor to perform a specific operation,
• wherein the specific operation includes:
• detecting occurrence of beam failure (BF) in a first SCell among the at least one SCell;
• and
• reporting the BF of the first SCell by transmitting, to a base station (BS), channel state information (CSI) information related to the BF of the first SCell in uplink resources configured for CSI reporting of the first SCell, and
• wherein the CSI information related to the BF of the first SCell is configured differently according to a CSI report configuration.

A base station (BS) including one primary cell (PCell) and at least one secondary cell (SCell) in a wireless communication system, the BS comprising:

• at least one transmitter;
• at least one receiver;
• at least one processor;
• and
• at least one memory operatively coupled to the at least one processor and storing instructions which when executed, cause the at least one processor to perform a specific operation,
• wherein the specific operation includes:
• receiving, from a user equipment (UE), channel state information (CSI) information related to beam failure (BF) of a first SCell among the at least one SCell in uplink resources configured for CSI reporting of the first SCell;
• and
• identifying occurrence of the BF of the first SCell based on the CSI information, and
• wherein the CSI information related to the BF of the first SCell is configured differently according to a CSI report configuration.