Privacy-Verified Ranging Requests for Secure Direct Device Positioning
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Solution Overview
Problem
Existing ranging technologies in communication systems lack privacy protection mechanisms, leading to potential location privacy leakage when direct communication connections are established without permission, especially in scenarios without network coverage.
Innovation Solution
Implement privacy verification based on a stored privacy profile to determine whether to accept a ranging request, ensuring that only authorized devices can perform ranging, thereby protecting the privacy of the target device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct communication connection is established for ranging without permission, then ranging functionality is achieved, but location privacy leakage occurs
Solution Approach 1:
The patent applies preliminary action by performing privacy verification before establishing the direct communication connection for ranging. The target UE checks the ranging request message against its privacy profile in advance, determining whether to permit the ranging operation before any location information is exposed. This ensures ranging functionality is only enabled when privacy requirements are satisfied.
2Object-affected harmful factors
If privacy verification is implemented, then location privacy is protected, but ranging process complexity increases
Solution Approach 1:
The patent applies self-service by enabling the target UE to autonomously perform privacy verification using its own stored privacy profile. The device independently checks incoming ranging requests against its predefined privacy requirements without needing external verification authorities or complex centralized control systems, thereby protecting privacy while maintaining relatively simple device architecture.
3Reliability
If permission checking is added to ranging requests, then system security is improved, but communication overhead increases
Solution Approach 1:
The patent applies taking out by extracting and utilizing existing message structures for privacy verification. The ranging request message and response message already contain necessary identification and status information; the invention reuses these existing fields for permission checking rather than introducing entirely new communication protocols or extensive additional data exchange, thereby improving security with minimal communication overhead.
Data Source
AI summary
A ranging method is provided. The method includes: receiving a ranging request message, which is sent by a first terminal device; according to a privacy profile stored in a second terminal device, performing privacy verification of the ranging request message; and sending a ranging response message to the first terminal device, wherein the ranging response message is used to determine whether to accept a ranging request of the ranging request message.