24th identification information is information indicating whether or not the network supports data communication using a communication path of a user plane. The 24th identification information may indicate that the network supports data communication using the N3 interface which is an interface between the gNB and the UPF. The 24th identification information may be an N3 data bit (N3 data transfer). The N3 data bit may indicate that data communication using the N3 interface is supported (N3 data transfer supported). The N3 data bit may constitute a 5GMM network feature support information element indicating the capability of the network in 5G. The 24th identification information may indicate that the network has accepted the data communication using the N3 interface.
The 23rd identification information and/or the 24th identification information may be identification information indicating that a communication path of a user plane is established or may be identification information indicating that the establishment of a communication path of a user plane can be executed in a case that the network is using user data communication using control plane CIoT 5GS optimization.
The 24th identification information may be information selected and determined via the network, based on the received fourth identification information, information associated with NSIs, capability information of the network, an operator policy, the state of the network, registration information of a user, and/or the like