Systems and procedures for mobility management in a distributed packet core system of a software-defined network
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A distributed packet core system of a software-defined network (SDN packet core system) includes a plurality of interconnected local mobility domains (LMDs). Each LMD includes a plurality of radio access technology-specific (RAT-specific) front-end modules that are assigned to at least one RAT, and a mobility manager. Each RAT-specific front-end module is configured to treat RAT internal and LMD-internal mobility events that switching the connectivity of client devices between two radio access points that are coupled to the LMD and a first common RAT are associated, that also this RAT is associated with specific front-end module include. The mobility manager is coupled to the front-end modules, and is configured to treat RAT internal and LMD-mobility across events. The Mobility Manager can also be configured to handle RAT cross and LMD internal mobility events if the SDN packet core system supports more than one RAT.