System and method for enhanced Operator Determined Barring in 5G networks with coordinated AMF-SMF rejection of PDU session establishment.

Patentradars sammanfattning

This invention addresses Operator Determined Barring (ODB) in 5G/NR cellular systems by introducing a coordinated rejection mechanism between the Access and Mobility Management Function (AMF) and Session Management Function (SMF). The AMF receives a PDU session establishment request from User Equipment, determines rejection criteria based on ODB policies, and sends an indication to the SMF to reject the session. The SMF then responds with a failure message to deny the session establishment, improving network policy enforcement and resource management.

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