Patent ID: 11877351
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A network node implementing a Session Management Function, SMF, node configured to act as a network function, NF, service producer operative in a Fifth Generation System, 5GS, that comprises a User Equipment, UE, associated with a Subscriber Permanent Identifier, SUPI, that is associated with subscription data of the UE, the network node comprising:
a network interface; and
processing circuitry associated with the network interface, the processing circuitry configured to cause the network node to implement the SMF node, the SMF node adapted to:
receive, from an Access and Mobility Management Function, AMF, node acting as a NF consumer, a request relating to a Protocol Data Unit, PDU, Session of the UE and comprising a Request Type that is set to Existing PDU Session; and
send, to the AMF node, a response comprising a Generic Public Subscription Identifier, GPSI, associated with the PDU session of the UE, which UE is associated with the SUPI and which GPSI is an external identifier to be used in networks outside the 5GS for addressing the subscription data of the UE.