A Design of Stateless 5G Core Network with Procedural Processing

In standard Mobile Core Network (CN), a single Network Function (NF) serves a large number of User Equipments (UEs), and the context of a UE is kept across multiple NFs. This architecture has a large impact range when a problem or operation occurs in a NF, which may cause a major outage. In this paper, we propose novel 5G Core Network (5GC) architecture named Procedure-based 5GC (Proc5GC) that provides reactive and stateless procedural processing for each UE. This paper describes a proof-of-concept implementation of a minimum system of Proc5GC and confirms that it works.