Patent ID: 11864098
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of accessing a Network Function, NF, segment by an NF consumer, the NF segment corresponds corresponding to an NF producer instance in charge of a set of user equipment, UE, for subscribers of a core network, the method executed at a first network node that implements an Access and Mobility Management Function, AMF, and the method comprising:
receiving at the first network node a UE registration message originated from a UE, the UE registration message comprising a Subscription Concealed Identifier, SUCI, which includes a Routing Indicator assigned to a subscription for the UE in the core network;
selecting, at the first network node, an NF segment assigned for the UE based on the Routing Indicator;
accessing, from the first network node to the NF segment assigned for the UE, to obtain UE related information;
receiving, at the first network node from the NF segment assigned for the UE, a Subscription Permanent Identifier, SUPI, for the UE; and
transmitting, from the first network node toward a second network node of the core network, an operation request with the SUPI and the Routing Indicator for the UE, to facilitate discovery by the second network node of the NF segment assigned for the UE.