Dual SIM Card Reader System for Seamless Network Switching
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Solution Overview
Problem
Existing wireless portable communication devices often have a single SIM card reader located underneath the battery, making it difficult for users to replace SIM cards without powering down the device.
Innovation Solution
A dual SIM card system where a second reader is accessible without removing the battery, allowing for the generation of a control signal upon SIM card removal to manage active applications and communication channels, enabling seamless transitions and maintenance of services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single SIM card reader is located underneath the battery, then the device structure is simplified, but the ease of operation deteriorates because users cannot easily replace SIM cards without powering down the device
Solution Approach 1:
The patent divides the SIM card storage system into two separate readers: a first reader located underneath the battery and a second reader accessible from the device exterior. This segmentation allows independent access to different SIM cards, enabling users to replace the second SIM card without powering down the device or removing the battery, thus improving ease of operation while maintaining structural simplicity
Solution Approach 2:
The second SIM card reader acts as an intermediary access point that allows SIM card replacement without requiring access to the first reader underneath the battery. This intermediary structure enables seamless SIM card switching while preserving the original battery-protected first reader configuration
2Ease of operation
If a second SIM card reader is added for external access, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
Both the first and second SIM card readers are configured to read user insertable integrated circuits for network authentication and identification. The second reader provides an additional access path that performs the same universal function as the first reader, allowing SIM card replacement without adding complex different functionality, thus minimizing the increase in device complexity
3Adaptability or versatility
If SIM card removal is detected, then the ability to manage active applications improves, but the loss of information increases if application states are not preserved
Solution Approach 1:
The processor is configured to detect SIM card removal and, in response, to save the state of active applications before the SIM card is fully removed. This preliminary action of saving application states prevents information loss and allows applications to be resumed later, thereby improving adaptability while preventing information loss
Solution Approach 2:
The system implements a feedback mechanism where the processor continuously monitors SIM card presence and, upon detecting removal, triggers a response sequence that saves application states and maintains communication channels. This feedback loop ensures that application information is preserved and can be restored, balancing adaptability improvement with information loss prevention
4Reliability
If communication channels are maintained upon SIM card removal, then the reliability of communication improves, but the use of energy increases
Solution Approach 1:
The communication channel maintenance is implemented dynamically based on SIM card removal detection. The processor selectively maintains communication channels only when necessary (upon SIM removal) rather than continuously, allowing the system to adapt its energy consumption to actual communication needs, thereby improving reliability during critical transitions while minimizing overall energy use
Data Source
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AI summary
Embodiments of the invention relate to an apparatus, and method for a communication network. Certain embodiments provide an apparatus comprising: a first reader configured to read a user insertable integrated circuit configured to identify a user in a communications network; a second reader configured to read a user insertable integrated circuit configured to identify a user in a communications network; at least one memory storing computer program instructions; and at least one processor configured to execute the computer program instructions to cause the apparatus at least to perform: generating a control signal responsive to removal of an integrated circuit from the second reader.