Cellular Privacy Gateway with IMSI Pool Shuffling
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Solution Overview
Problem
Current cellular architecture compromises user identity and location privacy, as operators track and sell user data without adequate protection, with existing solutions failing to address bulk surveillance and operator-driven tracking without requiring infrastructure changes or cooperation.
Innovation Solution
A cellular architecture with a privacy gateway and over-the-air gateway that authenticates devices while hiding identities by using a pool of valid IMSIs, periodically shuffling these identities to protect user privacy without altering physical infrastructure or requiring direct operator cooperation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cellular operators track user locations to provide connectivity services, then network functionality is maintained, but user identity and location privacy is compromised
Solution Approach 1:
The system segments the tracking function by introducing a privacy gateway that separates the user device from the operator's tracking infrastructure. The privacy gateway acts as an intermediary that breaks the direct link between the user's real identity and the network's tracking capabilities, allowing connectivity while protecting privacy information.
Solution Approach 2:
The privacy gateway serves as an intermediary component between the user device and the cellular network infrastructure. It mediates the authentication and tracking processes by verifying authentication tokens without exposing user identity information to the operator, thus maintaining connectivity while preventing privacy loss.
2Reliability
If authentication tokens are used to verify device identity, then network security is improved, but user anonymity is reduced if real identifiers are exposed
Solution Approach 1:
The system uses authentication tokens as copies or representations of user identity rather than exposing the real identifier. These tokens serve as surrogate credentials that verify authenticity without revealing the actual user identity, maintaining both security and anonymity simultaneously.
3Productivity
If 5G small cells are deployed to improve network performance, then connectivity quality increases, but location tracking precision worsens privacy
Solution Approach 1:
The privacy protection mechanism segments the location information handling by introducing an additional layer between the small cell infrastructure and the user identity. Even though small cells provide precise location data for network performance, the privacy gateway prevents this precise location information from being linked to user identities.
4Extent of automation
If cellular architecture maintains centralized control for connectivity management, then network coordination is improved, but user privacy protection deteriorates
Solution Approach 1:
The privacy gateway acts as an intermediary that maintains the centralized coordination architecture while protecting user data. It allows the network to maintain automated control and coordination for connectivity management, but the gateway filters and protects user information from being exposed to the centralized infrastructure.
Data Source
AI summary
According to various embodiments, a cellular architecture for enhanced privacy regarding identity and location of a computing device is disclosed. The architecture includes a privacy gateway connected to the core packet forwarding gateway, where the privacy gateway is configured to authenticate the computing device while hiding the identity of the computing device by verifying authentication tokens that represent units of access. The architecture further includes an over-the-air (OTA) gateway configured to select an international mobile subscriber identity (IMSI) from a pool of valid IMSIs and deliver the selected IMSI to a subscriber identity module (SIM) card of the computing device, where the SIM card periodically shuffles the pool of valid IMSIs.