Method and device related to improvement of user equipment assistance information in mobile communication system

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver;
• and
• at least one processor, wherein the at least one processor is configured to:
• transmit, to a base station, capability information on support for a report of first user equipment (UE) assistance information (UAI);
• receive, from the base station, first configuration information for reporting the first UAI;
• and
• report, to the base station, the first UAI based on the first configuration information, and start a first prohibit timer related to the reporting of the first UAI.

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

• receiving, from a user equipment (UE), capability information on support for a report of first UE assistance information (UAI);
• transmitting, to the UE, first configuration information for reporting the first UAI;
• and
• receiving, from the UE, the first UAI based on the first configuration information,
• wherein a first prohibit timer related to the reporting of the first UAI starts in case that a first UAI message is reported.

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

• a transceiver;
• and
• at least one processor, wherein the at least one processor is configured to:
• receive, from a user equipment (UE), capability information on support for a report of first UE assistance information (UAI),
• transmit, to the UE, first configuration information for reporting the first UAI, and
• receive, from the UE, the first UAI based on the first configuration information,
• wherein a first prohibit timer related to the reporting of the first UAI starts in case that a first UAI message is reported.