Shared SIM Wireless Connection for SIM-Less Mobile Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in conveniently using subscriber identity module (SIM) card information across different devices for network connection, particularly when a device lacks a physical SIM card.
Innovation Solution
A network connection method and device that enables a first mobile terminal to establish a wireless connection with a second mobile terminal to share subscriber identity information, allowing the first terminal to connect to a network using the SIM information from the second terminal, with authentication and maintenance mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a device lacks a physical SIM card, then network connection capability is lost, but adding a physical SIM card slot increases device complexity
Solution Approach 1:
The patent implements SIM card sharing by copying SIM identification information (ICCID, IMSI, authentication keys) from a host device to a client device through wireless communication. This digital copy enables the client device to authenticate with the network without requiring a physical SIM card, thus maintaining network connection capability while avoiding the complexity of adding SIM card hardware.
Solution Approach 2:
The patent introduces a wireless communication intermediary (Bluetooth, WiFi, or near-field communication) to transfer SIM card information between devices. This intermediary mechanism enables the sharing of subscriber identity data without requiring direct physical SIM card insertion, resolving the contradiction between network access and device complexity.
2Ease of operation
If SIM card information is shared across multiple devices, then convenience of use is improved, but security risks increase
Solution Approach 1:
The patent implements authentication feedback mechanisms where the network equipment verifies SIM card information before granting access. The host device and client device engage in mutual authentication protocols, ensuring that only authorized devices can share SIM information. This feedback loop maintains security while enabling convenient multi-device access.
Solution Approach 2:
The patent changes the state of SIM card information from static (stored only on physical SIM) to dynamic (can be temporarily shared with authentication). By implementing time-limited sharing sessions and authentication-based access control, the system enables convenient sharing while mitigating security risks through parameter changes in how the information is managed and protected.
3Ease of operation
If automatic detection and connection establishment is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service functionality where the client device automatically detects the host device, initiates connection requests, and completes authentication without user intervention. The system autonomously manages the SIM card information sharing process, including establishing wireless connections and verifying credentials, thereby improving ease of operation while the automated nature reduces the need for complex manual configuration interfaces.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A network connection method, implemented using a first mobile terminal, includes: establishing (S101) a first wireless connection to a second mobile terminal; receiving (S102) subscriber identity information of a subscriber identity module SIM from the second mobile terminal via the first wireless connection; and establishing (S103) a second wireless connection to a network equipment using the subscriber identity information and the first wireless connection, the subscriber identity module SIM is provided in the second mobile terminal for sharing among devices.