Patent ID: 11849506

Abstract:
A method for routing inter-public land mobile network (inter-PLMN) messages relating to existing subscriptions with a network function (NF) repository functions (NRFs) includes, at a security edge protection proxy (SEPP) implemented using at least one processor, automatically populating, by the SEPP, a subscription identifier to target NRF resource identification information mapping database accessible to the SEPP with mappings between subscription identifiers and target NRF resource identification information. The method further includes receiving an inter-PLMN message for modifying or deleting a subscription. The method further includes reading a subscription identifier from the message for modifying or deleting the subscription. The method further includes using the subscription identifier from the message for modifying or deleting the subscription to access the database and obtain an identifier associated with an NRF that created the subscription. The method further includes forwarding the message for updating or deleting the subscription to the NRF.