Mobile Identifier Request Detection Against False Base Stations

Solution Overview

Problem

Mobile devices lack the ability to detect and notify users when their secret identifiers are being transmitted in the clear, making them vulnerable to tracking by false base stations, which poses an increasing threat due to the ease of implementation and operation of such stations.

Innovation Solution

Implementing a system in mobile devices to recognize and respond to requests for secret identifiers by generating real-time notifications or aggregate reports, allowing users to take mitigating actions such as encrypting identifiers or aborting connections, thereby enhancing privacy and security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mobile devices transmit temporary identifiers to establish network connections, then network connectivity is achieved, but secret identifiers may be exposed to false base stations

Engineering Contradiction:

Improvenetwork connectivityVSAvoidsecret identifier exposure

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary detection of false base stations by monitoring for requests for secret identifiers before the actual connection is established. The mobile device checks whether a base station is requesting the secret identifier in advance, allowing the user to be notified and take protective action before the harmful transmission occurs.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the user by generating notifications when false base stations are detected. This feedback mechanism informs users about the security risk and enables them to take mitigating actions such as aborting the connection or encrypting identifiers, thereby resolving the contradiction between maintaining connectivity and preventing identifier exposure.

Inventive Principle:

Principle #23Feedback

2Reliability

If mobile devices respond to base station requests with secret identifiers, then network authentication is completed, but user privacy is compromised

Engineering Contradiction:

ImproveauthenticationVSAvoiduser privacy

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system performs preliminary detection of false base stations by monitoring for requests for secret identifiers before the actual connection is established. The mobile device checks whether a base station is requesting the secret identifier in advance, allowing the user to be notified and take protective action before the harmful transmission occurs.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the user by generating notifications when false base stations are detected. This feedback mechanism informs users about the security risk and enables them to take mitigating actions such as aborting the connection or encrypting identifiers, thereby resolving the contradiction between maintaining connectivity and preventing identifier exposure.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If users are notified of false base station attempts, then user awareness and protective action increase, but device complexity increases

Engineering Contradiction:

Improveuser awarenessVSAvoiddetection system

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The mobile device autonomously performs detection of false base stations and generation of notifications without requiring user intervention or external systems. The device monitors its own communication protocols, detects requests for secret identifiers, and automatically generates user notifications, thereby providing self-service security monitoring with minimal added complexity.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The detection mechanism is integrated into the existing mobile device infrastructure, utilizing existing protocols and processing capabilities. By leveraging the device's existing communication and processing functions, the system achieves multi-functionality without proportionally increasing complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250392918A1Notifying users of requests for secret identifiers

Publication Date: 2025.12.25 GOOGLE LLC

AI summary

A user equipment includes a transceiver configured to transmit and receive signals over an air interface, a memory configured to store executable instructions, and a processor configured to execute instructions stored on the memory. The instructions allow the user equipment to detect reception of a request to transmit a secret identifier of the user equipment over the air interface and provide a notification to a user of the user equipment in response to detecting the reception of the request.