FIG. 16A and FIG. 16B are a flowchart of a case of transmitting a new failure report when a conditional PSCell change using an SRB3 fails according to an embodiment of the disclosure. Hereinafter, FIG. 16A and FIG. 16B are call FIG. 16.
FIG. 16 illustrates a solution of a case where the started conditional PSCell change fails. A terminal is in dual connection with a master node (MN) and a secondary node (SN). The terminal may inform at least one of the MN and the SN that a conditional PSCell change is possible. That is, the terminal may provide at least one of the MN and the SN with information on capability, which indicates that the terminal supports a conditional PSCell change. The information on capability, which indicates that the terminal supports a conditional PSCell change, may include performance information related a conditional handover (CHO), and performance information related to a conditional PSCell change (CPSC). When it is identified that the terminal supports a PSCell change, the SN may transfer measurement configuration information (Meas Configuration) (operation 16-05).
