Virtual SIM Card Coexistence in Single-Card Devices

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Solution Overview

Problem

Existing communication devices operating in single-card mode cannot seamlessly switch to dual-card mode to enable both virtual and physical SIM cards simultaneously, limiting network access and user convenience.

Innovation Solution

A method and device that detect the current talk mode and install a target dual-card mode upon user initiation, allowing the virtual SIM card to access networks without affecting the physical SIM card, by configuring International Mobile Subscriber Identification Number (IMSI) resource information on a virtual card slot and enabling network access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a communication device operates in single-card mode, then the device structure is simple and easy to operate, but the device cannot access multiple networks simultaneously and lacks versatility

Engineering Contradiction:
Improvenetwork access capabilityVSAvoidtalk mode complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic talk mode switching that allows the communication device to transition between single-card mode and dual-card mode based on user needs. The system dynamically adjusts the operational state of the virtual SIM card and resource allocation, enabling the device to adapt its complexity level and network access capability according to real-time requirements without permanent hardware changes.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a virtual SIM card is enabled in single-card mode, then network access is enabled, but the physical SIM card functionality is disrupted

Engineering Contradiction:
Improvevirtual SIM card functionalityVSAvoidphysical SIM card operation
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the SIM card functionality by introducing a virtual SIM card that operates independently from the physical SIM card. The system divides the resource allocation into separate channels, allowing the virtual SIM card to be activated in dual-card mode without interfering with physical SIM card operations. This segmentation enables both virtual and physical SIM cards to coexist and function simultaneously without mutual disruption.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If dual-card mode is implemented to enable both virtual and physical SIM cards, then network access versatility is improved, but the device complexity increases

Engineering Contradiction:
Improvedual-card mode capabilityVSAvoidtalk mode management
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements automated resource allocation and talk mode management that reduces user burden. The system automatically detects the appropriate talk mode based on the activation state of virtual and physical SIM cards, and dynamically adjusts resource allocation without requiring manual user configuration. This self-service mechanism simplifies operation while maintaining dual-card mode capabilities, as the system handles the complexity automatically based on user preferences.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9756045B2Method, device and computer-readable medium for enabling virtual subscriber identity module card
Publication Date: 2017.09.05 XIAOMI INC
  • US9756045B2 patent drawing
  • US9756045B2 patent drawing
  • US9756045B2 patent drawing

AI summary

Method, device and computer-readable medium for enabling a virtual Subscriber Identity Module (SIM) card are provided in the disclosure, which belongs to a technical field of communication. The method includes: receiving an initiation instruction for initiating the virtual SIM card; detecting a current talk mode of a communication device based on the initiation instruction, the current talk mode includes a single-card mode; and installing a target talk mode corresponding to the current talk mode according to the current talk mode, the target talk mode includes a dual-card mode. The method and device for enabling a virtual SIM card may solve the problem that the virtual SIM card may not coexist with a physical SIM card in a single-card mode communication device, and may achieve an effect that the virtual SIM card and the physical SIM card may coexist with each other.