ML model support and model ID handling by UE and network

A method performed by a network node for configuring a machine learning (ML) model in a user equipment (UE), the method comprising:

• obtaining one or more indications of ML model support information from a UE that describe one or more ML models available at the UE, the one or more indications of ML model support information indicating at least one of:
• one or more model indicators;
• and one or more model version indicators;
• determining a ML model identifier based at least in part on the one or more indications of ML model support information, the ML model identifier identifying one of the one or more ML models available at the UE, wherein the ML model identifier comprises a long model identifier, the long model identifier configured to be unique for a same model type or model version over multiple sessions and for multiple UEs to allow consistent model identifier allocation over time and across the network;
• and
• signaling the ML model identifier to the UE.