Systems and methods for establishing protocol data unit sessions using session management subscription data

One or more devices, comprising:

• one or more processors, configured to execute a method stored in memory, the method comprising:
• transmitting, by an access and mobility management function (AMF) to a network repository function (NRF), a discovery message for discovering a plurality of data network names (DNNs) capable of being handled by a session management function (SMF) for a subscription permanent identifier (SUPI);
• receiving, by the AMF and from the NRF, an indication of the plurality of DNNs capable of being handled by the SMF;
• and
• transmitting, by the AMF to the SMF, an SMF protocol data unit (PDU) session message that indicates the plurality of DNNs capable of being handled by the SMF.

A non-transitory computer-readable medium, storing instructions thereon, the instructions comprising:

• transmitting, by an access and mobility management function (AMF) to a network repository function (NRF), a discovery message for discovering a plurality of data network names (DNNs) capable of being handled by a session management function (SMF) for a subscription permanent identifier (SUPI);
• receiving, by the AMF and from the NRF, an indication of the plurality of DNNs capable of being handled by the SMF;
• and
• transmitting, by the AMF to the SMF, an SMF protocol data unit (PDU) session message that indicates the plurality of DNNs capable of being handled by the SMF.