FIELD: wireless communication.
SUBSTANCE: technical result is achieved by the fact that an application function (AF) transmits an indication of one or more protected service mode supported by this AF function to the UE using the communication backbone; prior to service initiation for the AF function, the UE may determine the protected service mode supported by this AF function, wherein each of the one or more secure service modes comprises authentication and key management for an application service or a common boot architecture service; UE initiates the correct procedure for establishing connection with the AF function based on the service mode supported by this AF function.
EFFECT: optimization of communication between a network element of an application function and a terminal device.
22 cl, 10 dwg
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