Multi-SIM Device Reader Detection and Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with multiple Subscriber Identity Modules (SIMs) face challenges in efficiently determining and utilizing the appropriate SIM for communication with readers, particularly in scenarios involving near-field communication, where different SIMs may store distinct user information such as payment and personal data.
Innovation Solution
An electronic device is configured with a processor to sense the presence of a reader and determine the appropriate SIM from a plurality of SIMs, utilizing a communication module to communicate using information stored in the selected SIM, allowing for seamless switching between SIMs based on application execution or user selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SIMs are stored in the electronic device, then the device can support multiple user information and services, but it becomes difficult to determine which SIM to use for communication with the reader
Solution Approach 1:
The system performs preliminary actions by detecting the reader's presence before communication begins, and pre-determines which SIM to use based on stored correspondence relationships. This advance preparation resolves the SIM selection issue before the actual communication need arises, eliminating the complexity of real-time decision-making.
Solution Approach 2:
The system establishes a feedback mechanism where the detection of reader presence triggers a query to determine the appropriate SIM, and the result of this query feeds back to control the communication process. This closed-loop approach ensures the correct SIM is selected based on the specific communication context.
2Productivity
If the electronic device automatically determines the SIM, then communication efficiency is improved, but user control and selection capability may be reduced
Solution Approach 1:
The system implements dynamic SIM selection that adapts to different situations. The correspondence relationship between readers and SIMs is not fixed but can be modified based on user input. Users can add, delete, or modify these relationships through the interface, making the system both efficient and flexible.
Solution Approach 2:
The system provides self-service capabilities by automatically managing SIM selection based on pre-configured user preferences and correspondence relationships. Once users set up their preferences, the system handles routine selections automatically without requiring user intervention for each communication event.
3Measurement precision
If the electronic device stores correspondence relationship between reader and SIM, then accurate SIM selection is achieved, but memory requirements and data management complexity increase
Solution Approach 1:
The system applies local quality by storing correspondence relationships specifically for NFC readers rather than maintaining comprehensive data for all possible communication scenarios. The data structure is tailored to the specific needs of NFC communication, storing only the necessary reader-SIM mappings without redundant information.
Data Source
AI summary
A method is provided including: sensing that a reader is located within a preset distance from an electronic device; determining a Service Identification Module (SIM) from a plurality of SIMS that are available in the electronic device; and communicating with the reader using information stored in the SIM.