Modem Network Access Management via Multi-Profile SIM
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Solution Overview
Problem
Connected objects in the Internet of Things often experience degraded or lost network access due to radio coverage issues, such as technical defects or incomplete territorial coverage, leading to insufficient throughput and impaired communication services, which existing methods fail to adequately address.
Innovation Solution
A method for managing access to telecommunications infrastructure that involves a modem with an attachment module and a decision module capable of dynamically selecting the best network based on quality of service criteria, using a preferred network and multi-operator subscriber profiles to ensure resilient connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connected object uses a single preferred network for communication, then service quality and preferential rates are improved, but network accessibility and resilience are degraded when radio coverage is lost or degraded
Solution Approach 1:
The SIM card is configured with multiple operator subscriber profiles, enabling it to access multiple different telecommunications networks. This multi-functionality allows the connected object to switch between networks based on availability, ensuring both service quality on the preferred network and accessibility on alternative networks when needed.
Solution Approach 2:
The system dynamically selects which network to connect to based on real-time conditions. The modem continuously evaluates network availability and automatically switches between the preferred network and alternative networks, creating a dynamic adaptation to changing radio coverage conditions while maintaining connectivity.
2Adaptability or versatility
If a connected object switches to alternative networks when preferred network coverage is lost, then network resilience is improved, but service quality and preferential rates are degraded
Solution Approach 1:
The SIM card is pre-configured with multiple operator subscriber profiles before deployment. This beforehand preparation ensures that when the preferred network becomes unavailable, the connected object can immediately switch to an alternative network without service interruption, cushioning against the loss of preferred network coverage.
Solution Approach 2:
The modem acts as an intermediary between the connected object and multiple telecommunications networks. It manages the switching logic, selecting the preferred network when available for optimal service quality, and automatically transitioning to alternative networks when the preferred network is inaccessible, thus mediating between service quality and resilience requirements.
3Device complexity
If existing methods are used for network access management, then device simplicity is maintained, but connection resilience and automatic network switching are insufficient
Solution Approach 1:
The system implements self-service automatic network switching. The modem autonomously monitors network availability and performs switching decisions without requiring manual intervention or complex external management systems. The SIM card with multiple profiles enables this self-service functionality while maintaining relative simplicity in the overall device architecture.
Data Source
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AI summary
The invention relates to a method for managing access to a telecommunications infrastructure, the infrastructure comprising networks and a modem, the method comprising a phase of choosing a best network comprising: - attaching the modem to each network, - measuring the quality of service provided by each network when the modem is attached to the network, - determining the chosen network, the chosen network being either the network with the highest measured quality, or a preferred network with a quality of service above a threshold, - attaching to the chosen network if different from the current network, - implementing periodic tests, and initiating a new network selection procedure in case of insufficient quality of service or if the current network is different from a preferred network or the initial best network.