Apparatus and method for transmitting assistance information in a wireless communication system

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

• transmitting, to a terminal, a radio resource control (RRC) message including configuration information associated with other configurations, wherein the other configurations include a first configuration for the terminal to report overheating assistance information;
• and
• receiving, from the terminal, the overheating assistance information including first information indicating a terminal's preference on a reduce configuration,
• wherein the reduce configuration includes information on a maximum aggregated bandwidth across carriers of at least one of a first frequency range or a second frequency range, a highest frequency of the first frequency range being lower than a lowest frequency of the second frequency range, and
• wherein the information indicating at least one value for the maximum aggregated bandwidth, and a value of 0 is not used for the first frequency range.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a controller configured to:
• control the transceiver to receive, from a base station, a radio resource control (RRC) message including configuration information associated with other configurations;
• identify that the terminal is configured to provide overheating assistance information based on the configuration information;
• and
• in case that overheating is detected and a prohibit timer for reporting the overheating assistance information is not running, start the prohibit timer and control the transceiver to transmit, to the base station, the overheating assistance information including first information indicating a terminal's preference on a reduce configuration,
• wherein the reduce configuration includes second information on a maximum aggregated bandwidth across carriers of at least one of a first frequency range or a second frequency range, and a highest frequency of the first frequency range being lower than a lowest frequency of the second frequency range, and
• wherein the second information indicating at least one value for the maximum aggregated bandwidth, and a value of 0 is not used for the first frequency range.

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

• a transceiver;
• and
• a controller configured to:
• control the transceiver to transmit, to a terminal, a radio resource control (RRC) message including configuration information associated with other configurations, wherein the other configurations include a first configuration for the terminal to report overheating assistance information;
• and
• control the transceiver to receive, from the terminal, the overheating assistance information including first information indicating a terminal's preference on a reduce configuration,
• wherein the reduce configuration includes second information on a maximum aggregated bandwidth across carriers of at least one of a first frequency range or a second frequency range, a highest frequency of the first frequency range being lower than a lowest frequency of the second frequency range, and
• wherein the second information indicating at least one value for the maximum aggregated bandwidth, and a value of 0 is not used for the first frequency range.