Design of Session State Migration Middleware for Disruption-Free Services

Various services, such as streaming, network games and thin clients, which keep a session state of user equipments (UEs) for a long period, are provided from servers. This paper proposes a session state migration which relocates session states from one server to multiple servers where the service of the relocated session state succeeds to be processed. Distributing the session states into the multiple servers increases a chance for relocating the session states, and results in allows the service provider to conduct the server maintenance at their convenience, and saving servers´ energy consumption. In this paper we clarify common procedures in the session state migration, design a middleware dedicated to the common procedures, and implement it as a proof of concept.