Patent ID: 11910248
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by a user equipment (UE) in a communication system, the method comprising:
receiving, from a base station associated with new radio-radio access (NR), a command message for inter-radio access technology (RAT) handover from the NR to a target RAT, wherein the command message includes information on a type of the target RAT;
performing a procedure associated with the inter-RAT handover based on the command message;
in case that a failure condition for the inter-RAT handover is satisfied, identifying that the inter-RAT handover fails; and
in case that the type of the target RAT is set to evolved universal terrestrial radio access (EUTRA) and the UE supports a radio link failure report for inter-RAT mobility robustness optimization (MRO) EUTRA, storing handover failure information in a variable for the radio link failure report based on an identification that the inter-RAT handover fails.