NFC Circuit SIM Profile Auto-Selection via Application ID Mapping
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Solution Overview
Problem
Existing electronic devices with multiple SIM capabilities face challenges in efficiently selecting and switching between SIM profiles for NFC services, often requiring user intervention and leading to inconvenience.
Innovation Solution
An electronic device equipped with a near field communication (NFC) circuit and a processor that can identify and select the appropriate SIM profile for NFC services based on an NFC application identifier (ID), without user manipulation, by using a database to map NFC applications to SIM profiles and manage profile enablement and connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual selection and switching between SIM profiles is required for NFC services, then user control over SIM selection is improved, but user convenience and ease of operation deteriorate
Solution Approach 1:
The system automatically performs SIM profile selection and switching for NFC services without requiring user intervention. The processor identifies the appropriate SIM profile based on the NFC application and autonomously configures the NFC circuit, eliminating manual selection steps while maintaining optimal service delivery.
Solution Approach 2:
The system pre-configures multiple SIM profiles in the database with their corresponding NFC application identifiers before runtime. When an NFC service is initiated, the processor quickly matches the current application with the pre-stored profile information, enabling rapid automatic selection without real-time user input or complex decision-making processes.
2Ease of operation
If automatic SIM profile selection is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The SIM profile management system is segmented into distinct functional components: a database storing SIM profile information with NFC application identifiers, a mapping mechanism that matches NFC applications to profiles, and a processor that executes the selection logic. This modular segmentation reduces overall system complexity by assigning specific tasks to dedicated components.
Solution Approach 2:
A database acts as an intermediary layer between the NFC circuit and the SIM profiles. Instead of direct complex interactions between the NFC application and multiple SIM profiles, the database stores and manages the mapping relationships, simplifying the selection process by providing a centralized lookup mechanism that the processor can efficiently query.
Data Source
AI summary
An electronic device includes: a near field communication (NFC) circuit; at least one processor operatively connected to the NFC circuit; and memory storing instructions that, when executed by the at least one processor, cause the electronic device to: receive, via the NFC circuit from an external electronic device, an NFC application identifier (ID), identify a subscriber identity module (SIM) profile, from among a plurality of SIM profiles, that corresponds to the NFC application ID, and perform, via the NFC circuit, an NFC communication with the external electronic device based on the identified SIM profile.