SIM Credential Transfer for Non-SIM Device Network Access
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Solution Overview
Problem
Users with non-SIM enabled wireless devices face challenges in accessing SIM-authenticated wireless networks and services, as they require physical SIM card transfer or separate subscriber agreements, which are inconvenient and costly.
Innovation Solution
A method and system that allow the transfer of SIM credentials from a SIM-enabled device to a non-SIM device over a communication channel not requiring SIM authentication, enabling the non-SIM device to access SIM-authenticated networks and services, with the cost charged to the SIM-enabled device's account.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical SIM card transfer is used to enable non-SIM devices to access networks, then network access is achieved, but user convenience deteriorates and operation complexity increases
Solution Approach 1:
The patent creates a virtual copy of the SIM card's authentication credentials (IMSI, Ki, and other network identifiers) that can be transferred to non-SIM devices. Instead of physically moving the SIM card, the system copies the essential authentication data through wireless communication channels, enabling the non-SIM device to access networks without physical SIM transfer while maintaining security through encrypted credential storage and transmission.
Solution Approach 2:
The patent introduces a third-party server as an intermediary between the SIM-enabled device and the non-SIM device. This server facilitates the secure transfer of SIM credentials by receiving authentication data from the SIM device, processing it through a wireless communication channel, and delivering it to the non-SIM device. This intermediary approach enables convenient credential transfer without requiring direct physical contact or complex user intervention.
2Reliability
If separate subscriber agreements are required for each device, then network access control is maintained, but cost and operational complexity increase
Solution Approach 1:
The patent implements a universal credential transfer system that allows a single SIM card's authentication data to be shared across multiple different device types (smartphones, tablets, laptops, etc.). Instead of requiring separate subscriber agreements for each device, the system enables one SIM card to authenticate multiple devices through wireless credential transfer, reducing operational complexity while maintaining network access control through server-mediated authentication.
3Reliability
If SIM credentials are stored on the SIM card, then authentication security is maintained, but device versatility deteriorates
Solution Approach 1:
The patent extracts the essential authentication credentials (IMSI, Ki, and other network identifiers) from the physical SIM card and stores them in a secure database on a remote server. This extraction allows the credentials to be accessed by multiple devices without physically moving the SIM card, enhancing device versatility while maintaining security through encrypted storage and server-mediated access control.
Solution Approach 2:
The patent transitions from local credential storage on the SIM card to remote credential storage on a server, adding a network dimension to the authentication system. This dimensional change enables credentials to be shared across multiple devices and network locations while maintaining security through encrypted transmission and server-based authentication, thereby improving device versatility without compromising authentication integrity.
Data Source
AI summary
Embodiments relate to a method of access to wireless networks and/or network services, such as WiMAX, from a first wireless-enabled device, by sharing the credential of a second wireless-enabled device.