Network registration and network slice selection system and method

A computing system comprising:

• a processor;
• and
• a non-transitory computer-readable medium storing computer-readable instructions which, when executed by the processor cause the computing system to implement an access and mobility function that is configured to:
• receiving, by an access and mobility function (AMF), a registration request sent by a user equipment (UE), the registration request comprising:
• Network Slice Selection Assistance Information (NSSAI) including at least one Single Network Slice Selection Assistance Information (S-NSSAI), the at least one S-NSSAI identifying a network slice requested by the UE;
• and indicator for one or more Protocol Data Unit (PDU) session associated with the at least one S-NSSAI, wherein the indicator for each of the one or more PDU session indicates a PDU session that is to be activated for the slice/service type identified by at least one S-NSSAI;
• and
• transmit to a session management function (SMF) associated with the network slice identified by the at least one S-NSSAI, a request to establish the one or more PDU sessions to be activated for network slice identified by the at least one S-NSSAI.

A non-transitory computer-readable medium storing computer-readable instructions which, when executed by a processor of a computing system to cause the computing system to implement an access and mobility (AMF) function that is configured to:

• receive a registration request sent by a user equipment (UE), the registration request comprising:
• Network Slice Selection Assistance Information (NSSAI) including at least one Single Network Slice Selection Assistance Information (S-NSSAI), the at least one S-NSSAI identifying a slice/service type requested by the UE;
• and indicator for one or more Protocol Data Unit (PDU) session associated with the at least one S-NSSAI, wherein the indicator for each of the one or more PDU session indicates a PDU session that is to be activated for the network slice identified by at least one S-NSSAI;
• and
• transmit to a session management function (SMF) associated with the network slice identified by the at least one S-NSSAI, a request establish the one or more PDU sessions that are to be activated for the network slice identified by at least one S-NSSAI.