Method and device for control plane-based registration and remote provisioning in communication system

A method of an authentication server function (AUSF) in a communication network, the method comprising:

• receiving, from a security anchor function (SEAF), a first request message for an authentication of a terminal, the first request message including a subscription concealed identifier (SUCI), a serving network (SN) name, and indicator indicating that the authentication is associated with remote provisioning of subscription owner—standalone non public network (SO-SNPN) via control plane;
• transmitting, to a unified data management (UDM), a second request message for the authentication including the SUCI, the SN name, and the indicator;
• receiving, from the UDM, a second response message including a subscription permanent identifier (SUPI) of the terminal de-concealed from the SUCI;
• and
• transmitting, to the SEAF, a first response message including the SUPI,
• wherein a message for requesting configuration information for the remote provisioning is transmitted from the SEAF to a provisioning server (PVS) of the SO-SNPN, based on the first response message.

A security anchor function (SEAF) in a communication network, the SEAF comprising:

• a transceiver;
• a processor coupled to the transceiver;
• and
• memory coupled to the processor and storing instructions executable by the processor to cause the SEAF to:
• receive, from a terminal, a non-access stratum (NAS) message including a subscription concealed identifier (SUCI) of the terminal,
• transmit, to an authentication server function (AUSF), a first request message for an authentication of the terminal, the first request message including the SUCI, a serving network (SN) name, and indicator indicating that the authentication is associated with remote provisioning of subscription owner-standalone non public network (SO-SNPN) via control plane,
• receive, from the AUSF, a first response message including a subscription permanent identifier (SUPI) of the terminal de-concealed from the SUCI, and
• transmit, to a provisioning server (PVS) of the SO-SNPN, a message for requesting configuration information for the remote provisioning based on the first response message.

An authentication server function (AUSF) in a communication network, the AUSF comprising:

• a transceiver;
• a processor coupled to the transceiver;
• and
• memory coupled to the processor and storing instructions executable by the processor to cause the AUSF to:
• receive, from a security anchor function (SEAF), a first request message for an authentication of a terminal, the first request message including a subscription concealed identifier (SUCI), a serving network (SN) name, and indicator indicating that the authentication is associated with remote provisioning of subscription owner—standalone non public network (SO-SNPN) via control plane,
• transmit, to a unified data management (UDM), a second request message for the authentication including the SUCI, the SN name, and the indicator,
• receive, from the UDM, a second response message including a subscription permanent identifier (SUPI) of the terminal de-concealed from the SUCI, and
• transmit, to the SEAF, a first response message including the SUPI,
• wherein a message for requesting configuration information for the remote provisioning is transmitted from the SEAF to a provisioning server (PVS) of the SO-SNPN, based on the first response message.