Multi-SIM Profile Selection Logic for Seamless Carrier Switching
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Solution Overview
Problem
Current dual SIM mobile phones require manual and costly processes for carrier changes, involving physical SIM card delivery and activation, which is inconvenient and inaccurate, especially when user locations differ from initial assumptions, and lacks secure OTA transmission.
Innovation Solution
Implementing multiple SIM profiles on a single SIM card or embedded SIM, with cloud-based OTA instructions for seamless carrier switching, automatic selection logic, and encryption algorithms to secure transmission, eliminating the need for physical SIM card management and inventory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple SIM profiles are stored on a single SIM card, then carrier switching becomes seamless and secure without service interruptions, but the device complexity increases due to multiple profiles and encryption algorithms
Solution Approach 1:
Multiple SIM profiles are merged into a single SIM card, allowing the device to store and switch between multiple carrier profiles without requiring physical SIM card changes. This consolidation enables seamless carrier switching while reducing the need for manual intervention.
Solution Approach 2:
The patent replaces the mechanical system of physical SIM card insertion and removal with an electronic system that uses stored profiles and encryption algorithms. This substitution eliminates the need for manual SIM card handling and enables automated carrier switching through OTA commands.
2Extent of automation
If cloud-based OTA instructions are used for carrier switching, then the process becomes automatic and electronic, but secure transmission requires complex encryption algorithms
Solution Approach 1:
The patent replaces manual carrier switching processes with automated cloud-based OTA instructions. The system automatically retrieves and applies carrier profiles from the cloud, eliminating the need for manual intervention in the carrier switching process.
Solution Approach 2:
The patent uses encryption algorithms to transform and protect carrier profile data during transmission and storage. By changing the parameter of data security through encryption, the system ensures secure automated switching while managing the complexity of the transmission system.
3Ease of operation
If automatic SIM profile selection logic is implemented, then carrier switching becomes seamless, but the selection process becomes more complex
Solution Approach 1:
The device is equipped with automatic SIM profile selection logic that enables it to autonomously choose and switch between carrier profiles without user intervention. The system self-manages the selection process based on stored profiles and received OTA instructions, making the operation seamless for the user.
Data Source
AI summary
Methods and apparatuses that select initial subscriber information module (SIM) profile via a mobile device are described. Multiple SIM profiles including a first SIM profile and a second SIM profile can be stored on a SIM card for the mobile device. The mobile device may attempt to connect to a first network via the first SIM profile. In response to a failure to connect to the first network according to the first SIM profile, the mobile device can access the second SIM profile to connect to a second network according to the second SIM profile. In an embodiment, this logic continues to the next SIM profiles stored on the SIM card for the mobile device until it is successfully connected to a network.