The 5GC architecture relies on a “Service-Based Architecture” (SBA) framework, where the architecture elements are defined in terms of “Network Functions” (NFs) rather than by “traditional” Network Entities. Via interfaces of a common framework, any given NF offers its services to all the other authorized NFs and/or to any “consumers” that are permitted to make […]

In LTE Core Network, all data plane traffic must go through a single node type called Packet Data Network Gateway (P-GW). This centralized architecture is advantageous in terms of operation and management. Yet, it could potentially pose a severe limitation when there is a huge amount of backhaul traffics in 5G. The following figure illustrates […]

As the VoLTE adoption cycle, it took the industry a few years to plan, test, and commercialize new voice services, and I believe VoNR will follow a similar timeline. And since 4G is the foundation for 5G NR deployments, I expect VoLTE to remain the 5G voice solution for many years to come. 5G NSA […]

5G Core Network  End-to-end flexibility is confirmed to be one of the core features of future 5G networks. This flexibility will result in large part from the introduction of network softwarization, i.e., the network hardware and the software functions are separate. Network softwarization through network functional virtualization (NFV), software-defined networking (SDN), network slicing and Cloud-RAN […]