Cellular Router SIM Authentication via Secondary Connection
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Solution Overview
Problem
Maintaining uninterrupted cellular connections using multiple SIM cards between a cellular router and a SIM station is challenging due to network problems and failures in receiving authentication responses, leading to connection failures.
Innovation Solution
The cellular router employs a second wireless communication module to establish an alternative connection with the SIM station when the primary connection fails, ensuring continuous authentication request and response transmission by switching to the secondary connection after detecting a failure in the primary one.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple SIM cards are used to establish multiple connections, then the quantity of simultaneous connections is improved, but the reliability of continuous authentication transmission deteriorates due to complex management and network failures
Solution Approach 1:
The system segments the authentication transmission process by separating it into independent connection-specific streams. Each SIM card has its own dedicated connection with independent authentication request-response transmission, allowing failure in one connection to not affect others. This segmentation enables reliable continuous authentication across multiple SIM cards despite network issues in individual connections.
2Ease of operation
If a single connection is used for authentication transmission, then the ease of operation is improved, but the reliability deteriorates when network problems occur
Solution Approach 1:
The system establishes multiple connections in advance before authentication failures occur. When network problems affect one connection, the pre-established alternative connections are ready to immediately take over authentication transmission, ensuring continuous operation without interruption. This preliminary preparation of backup connections maintains both ease of operation and high reliability.
3Reliability
If multiple connections are established for redundancy, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The system implements self-service mechanisms where each connection automatically manages its own authentication transmission independently. When a connection fails, the system automatically switches to alternative connections without requiring complex centralized management. Each SIM card's authentication process is self-contained, reducing overall system complexity while maintaining high reliability through multiple connections.
Data Source
AI summary
The present invention discloses methods and systems for using one or more substitute connections between a cellular router and a server. When the server detects that one or more connections fail, the server starts using one or more substitute connections to the one or more failed connections. The connections are used to transmit requests and responses between the cellular router and the server. The requests comprise authentication requests that are transmitted to the server from the cellular router. The responses comprise authentication responses that are transmitted to the cellular router from the server. The authentication requests and the authentication responses are to authenticate one or more SIM cards housed in the server. The cellular router authenticates the one or more SIM cards by utilizing the authentication responses to keep maintaining respective cellular connections established using the one or more SIM cards from the server.