Method and apparatus for logging and reporting radio link failure information in next-generation mobile communication system

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

• transmitting, to a terminal, a user equipment (UE) information request including information indicating whether the terminal reports a radio link failure (RLF), the first base station operating based on a first radio access technology (RAT);
• and
• in case that the information indicates a reporting of the terminal for the RLF, receiving, from the terminal, a UE information response including an RLF report including logging information for a cell of a second base station that operates based on a second RAT,
• wherein the logging information includes cell related information including a public land mobile network (PLMN) identity,
• wherein the PLMN identity is identified based on a first PLMN entry of a PLMN identity list included in system information, the system information being transmitted from the second base station to the terminal, and
• wherein the PLMN identity list corresponds to a core network of a second RAT to which the cell is connected, the cell being where the RLF is detected or being a source cell of a failed handover.

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

• a transceiver;
• and
• a controller configured to:
• control the transceiver to receive, from a first base station operating based on a first radio access technology (RAT), a user equipment (UE) information request including information indicating whether the terminal reports a radio link failure (RLF), and
• in case that the information indicates a reporting of the terminal for the RLF, control the transceiver to transmit, to the first base station, a UE information response including an RLF report including logging information for a cell of a second base station that operates based on a second RAT,
• wherein the logging information includes cell related information including a public land mobile network (PLMN) identity,
• wherein the PLMN identity is identified based on a first PLMN entry of a PLMN identity list included in system information, the system information being transmitted from the second base station to the terminal, and
• wherein the PLMN identity list corresponds to a core network of a second RAT to which the cell is connected, the cell being where the RLF is detected or being a source cell of a failed handover.

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

• a transceiver;
• and
• a controller configured to:
• control the transceiver to transmit, to a terminal, a user equipment (UE) information request including information indicating whether the terminal reports a radio link failure (RLF), the first base station operating based on a first radio access technology (RAT);
• and.
• in case that the information indicates a reporting of the terminal for the RLF, control the transceiver to receive, from the terminal, a UE information response including an RLF report including logging information for a cell of a second base station that operates based on a second RAT,
• wherein the logging information includes cell related information including a public land mobile network (PLMN) identity,
• wherein the PLMN identity is identified based on a first PLMN entry of a PLMN identity list included in system information, the system information being transmitted from the second base station to the terminal, and
• wherein the PLMN identity list corresponds to a core network of a second RAT to which the cell is connected, the cell being where the RLF is detected or being a source cell of a failed handover.