Mediation Server Network Load Balancing
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Solution Overview
Problem
In scenarios where multiple mobile networks have equal signal strength, communication devices face challenges in selecting the optimal network for authentication, leading to random connections and network overload when a large number of devices attempt to connect simultaneously, as described in 3GPP TR 33.812, which does not account for realistic urban environments with multiple operators.
Innovation Solution
A mediation server is introduced to communicate with multiple account managing servers, selecting the most appropriate one based on current operational status and prioritizing requests using identification information with varying priority levels to manage subscription information requests efficiently, thereby optimizing network connections and reducing overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals select network connections at random when signal strengths are equal, then network overload is reduced, but connection reliability deteriorates
Solution Approach 1:
The patent introduces a mediation server as an intermediary between terminals and account managing servers. This mediator receives authentication requests from terminals, selects appropriate account managing servers based on their operational status, and forwards requests accordingly. This resolves the contradiction by providing centralized intelligent routing that improves connection reliability while distributing load across multiple servers to maintain network throughput.
Solution Approach 2:
The mediation server performs preliminary actions by maintaining a database of account managing server operational statuses and pre-evaluating server availability. When authentication requests arrive, the server has already prepared the information needed to make optimal routing decisions, eliminating the need for terminals to randomly select servers and ensuring reliable connections are established efficiently.
2Productivity
If multiple account managing servers are used to handle authentication requests, then system capacity increases, but system complexity increases
Solution Approach 1:
The mediation server acts as a centralized intermediary that manages multiple account managing servers. It maintains a database of server statuses and implements the selection logic, thereby increasing authentication capacity through parallel server operations while keeping the system manageable by centralizing control and abstraction of complexity from individual terminals.
Solution Approach 2:
The mediation server performs multiple functions: it acts as an authentication request receiver, a server status monitor, a selection decision-maker, and a request router. This multi-functionality allows the system to handle multiple account managing servers efficiently without proportionally increasing overall system complexity, as one component performs all necessary coordination tasks.
3Device complexity
If a single account managing server is used, then system complexity is reduced, but network overload occurs during simultaneous connection attempts
Solution Approach 1:
The patent segments the authentication system into multiple account managing servers that can independently handle authentication requests. The mediation server divides incoming requests and distributes them to different account managing servers based on their operational status. This segmentation increases network stability during simultaneous connection attempts while keeping each individual server relatively simple.
Solution Approach 2:
The mediation server combines the functions of multiple account managing servers into a unified authentication system. By merging resources and coordinating through a central mediator, the system achieves the reliability benefits of multiple servers while presenting a simplified interface to terminals and maintaining manageable overall complexity through centralized control.
Data Source
AI summary
A mediation server which is able to communicate with a plurality of account managing servers (104) and mediates requests for issuing subscription information transmitted from a plurality of communication devices between each communication device and any one of the plurality of account managing servers (104), the mediation server comprising, a selection unit configured to select the account managing server to which the request is to be transmitted based on information regarding a current operational status of each account managing server stored in a database, when the request is received from the communication device, and a transmission unit configured to transmit the request for issuing the subscription information to the selected account managing server.