Methods for VFL operation by af as VFL server via nef in 5gc

Abstract

A method implemented by a network device, including receiving analytic identification information Network Data Analytics Functions (NWDAFs) for Vertical Federate Learning (VFL) for an analytic identifier. Analytic identification information includes a VFL configuration identifier for the analytic identifier and a learning model (LM) identifier or feature identifier for the VFL configuration identifier for the analytic identifier. A candidate NWDAF for VFL training is determined for the VFL configuration identifier for the analytic identifier. A service response is sent and indicates the candidate NWDAF using a temporary identifier and the LM identifier or the feature identifier fort the VFL configuration identifier. A service request for VFL training is received and includes the analytic identifier, VFL configuration identifier, and VFL correlation identifier identifying the VFL training session between a VFL server and VFL client. An indication of completed VFL training is sent to the candidate NWDAF, and includes the VFL correlation identifier.

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