MTC Device SIM Carrier Switching Control
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Solution Overview
Problem
Conventional dual-SIM terminals lack effective control over switching between SIMs and communication carriers, leading to suboptimal network selection based solely on communication volume exceeding limits, without considering the quality of service or contract-specific conditions.
Innovation Solution
An MTC device with a priority table for managing SIM and Mobile Network Operator (MNO) switching, measuring communication quality, and controlling the switch to the next priority set when conditions are met, with dynamic updates based on data usage, time zones, location, and contract terms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic switching is performed when communication volume exceeds the upper limit, then communication continuity is maintained, but the switching control is too simple and does not consider communication quality or contract conditions
Solution Approach 1:
The invention segments the switching control into multiple independent judgment dimensions: communication quality assessment (signal strength, data speed, packet loss) and contract condition verification (data usage limits, roaming agreements, time zone restrictions). This segmentation allows complex switching decisions to be made through systematic evaluation of multiple factors rather than a single threshold trigger.
Solution Approach 2:
The invention implements dynamic switching control by continuously monitoring communication quality parameters and contract conditions, allowing the switching decision to adapt to changing network conditions and contract terms. The system dynamically adjusts switching behavior based on real-time measurement results and accumulated data usage patterns rather than following a fixed predetermined rule.
2Ease of manufacture
If switching is based solely on communication volume exceeding limits, then the control logic is simple, but the network selection is suboptimal and does not consider communication quality
Solution Approach 1:
The invention implements feedback mechanisms by continuously measuring communication quality parameters (signal strength, data communication speed, packet error rate) and using these measurements to evaluate whether switching conditions are satisfied. The system feeds back the measured quality metrics to the control unit, which then determines whether to initiate switching based on both quality assessment and contract condition verification.
Solution Approach 2:
The invention changes the switching decision parameters from a single data volume threshold to multiple evaluation dimensions including communication quality parameters (signal strength, data speed, packet loss) and contract condition parameters (data usage limits, roaming agreements, time zone restrictions). This parameter expansion enables more comprehensive and optimal network selection.
3Reliability
If the system continuously monitors communication quality and contract conditions, then optimal switching decisions are made, but the processing time and computational resources increase
Solution Approach 1:
The invention performs preliminary actions by pre-defining switching conditions based on contract terms and pre-establishing evaluation criteria for communication quality. The system prepares the switching decision framework in advance, allowing rapid evaluation when actual switching is needed without performing complex calculations in real-time.
Solution Approach 2:
The invention applies partial monitoring by selectively measuring only the necessary communication quality parameters relevant to the current network situation and contract conditions, rather than continuously monitoring all possible parameters. This partial action approach reduces processing overhead while maintaining sufficient accuracy for optimal switching decisions.
Data Source
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AI summary
Properly controlling the switching of communication by treating the set of the SIM and the communication carrier as one unit is desired. An MTC device is provided, including: a memory unit for storing a switching condition for switching at least any one of a SIM and a communication carrier in association with each of sets of the SIM and communication carrier; a measuring unit for measuring communication quality for a set of the SIM and the communication carrier currently in use; and a control unit for controlling the switching of at least any one of the SIM and the communication carrier, when the communication quality satisfies the switching condition associated with the set of the SIM and the communication carrier currently in use.