SIM Card Sharing via NFC for Cellular Connectivity
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Solution Overview
Problem
Devices without a SIM card or with an abnormal SIM card cannot perform cellular mobile communication, limiting their communication capabilities and requiring physical SIM card extraction or installation.
Innovation Solution
A method and device for SIM card sharing, where a first device sends a share request to a second device through an interactive channel, receives SIM card information, and establishes a cellular mobile communication connection with a base station using that information, allowing the first device to use the second device's SIM card for communication without physically transferring the SIM card.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical SIM card extraction or installation is used, then cellular mobile communication can be performed, but the operation process becomes complex and time-consuming
Solution Approach 1:
The patent uses NFC technology to copy the SIM card information from a second device to a first device. Instead of physically transferring the SIM card, the system creates a digital copy of the SIM card data and uses的近场通信功能来模拟SIM卡的工作, thereby enabling communication without physical installation
Solution Approach 2:
The patent replaces the mechanical process of physical SIM card extraction and installation with an electronic/NFC-based information transfer system. The mechanical manipulation of SIM cards is substituted by wireless communication protocols and software-based SIM emulation
2Reliability
If physical SIM card transfer is used, then communication capability is obtained, but time is lost during extraction and installation
Solution Approach 1:
The system performs preliminary binding between user accounts and SIM cards on the source device. When sharing is needed, the pre-prepared SIM information can be quickly transferred via NFC without requiring real-time extraction or installation processes
Solution Approach 2:
The SIM card information is copied wirelessly through NFC technology, eliminating the time required for physical SIM card handling. The copy process occurs in seconds compared to the manual extraction and installation process
3Ease of operation
If interactive channel communication is used for SIM sharing, then ease of operation improves, but device complexity increases
Solution Approach 1:
The patent introduces an interactive channel as an intermediary communication path between devices. This channel handles the complex authentication and data transfer processes, shielding users from the underlying complexity while enabling seamless SIM sharing
Solution Approach 2:
The interactive channel serves multiple functions: establishing communication between devices, authenticating users, transferring SIM information, and managing the sharing process. This multi-functionality consolidates complexity into a single standardized interface
Data Source
AI summary
The present disclosure relates to a SIM card sharing method and device, a communication device, and a storage medium. The SIM card sharing method applied to the first device may include: in response to the first device's requirement for obtaining cellular mobile communication, sending share request information to a second device through an interactive channel, where the interactive channel is established between the first device and the second device through a preset connection manner; receiving SIM card information that is returned by the second device based on the share request information; and establishing a cellular mobile communication connection with the base station according to the SIM card information.