Device for service-based interface (sbi) communication with at least one control function of a telecommunication network, and method of operating said device

A method of operating a device for Service-Based Interface, SBI, communication with at least one control function of a telecommunication network,

• the method comprising:
• retrieving, via a Generative Pretrained Transformer, GPT, model interface of the device, a GPT model of an API communication of the SBI;
• retrieving, via a Network Repository Function, NRF, interface of the device, an indication of available services provided by the control functions;
• retrieving, via a Network Data Analytics Function, NWDAF, interface of the device, a real-time state information of the telecommunication network;
• receiving a first service intent or first service request;
• validating, using the GPT model, the received first service intent or first service request;
• determining, one or more implementing services of the available services using the GPT model, based on the validated first service intent or first service request and the real-time state information;
• and
• sending a second service intent or second service request for at least one of the implementing services.

A user equipment, UE, comprising

• a processor, being configured to:
• send a first service intent or first service request to a device for Service-Based Interface, SBI, communication with at least one control function of a telecommunication network;
• and
• receive a first service response to the received first service intent or first service request.