Wireless Sensing Data Processing With RIS Encryption
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Solution Overview
Problem
Wireless sensing technologies pose a risk to user privacy as illegal devices can easily obtain personal information due to the direct detection of wireless signal characteristics, compromising safety.
Innovation Solution
Implementing a re-configurable intelligent surface (RIS) to encrypt sensing services by configuring reflection coefficients dynamically, ensuring only authorized devices can access the true features of sensing objects by controlling the RIS's propagation environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless sensing technology is used to detect changes in wireless signal characteristics, then sensing service can be provided, but personal privacy of users can be easily obtained by illegal devices
Solution Approach 1:
The patent introduces a re-configurable intelligent surface (RIS) as an intermediary device between the sensing signal transmitter and receiver. The RIS dynamically adjusts reflection coefficients to encrypt the sensing service, acting as a mediator that protects privacy while enabling legitimate sensing operations. Authorized devices can access the RIS configuration information to decrypt sensing data, while unauthorized devices cannot extract true sensing results.
2Reliability
If re-configurable intelligent surface is used to encrypt sensing service, then privacy protection is enhanced, but device complexity increases
Solution Approach 1:
The patent employs dynamic configuration of RIS reflection coefficients to achieve encryption. The RIS can change its reflection coefficients in real-time based on time slots and configuration information, creating a dynamic encryption mechanism. This dynamic approach allows the system to adapt to different sensing scenarios while maintaining security, balancing encryption capability with system complexity.
3Measurement precision
If reflection coefficient is configured for each time slot, then sensing precision is improved, but time consumption increases
Solution Approach 1:
The patent implements periodic configuration of RIS reflection coefficients where the same reflection coefficient can be reused across multiple time slots. The system configures reflection coefficients in periodic cycles rather than requiring unique coefficients for each time slot, reducing configuration overhead while maintaining sensing precision. This periodic approach allows efficient time utilization while preserving measurement accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security and privacy by preventing unauthorized devices from extracting true sensing results, as they cannot discern between coefficient changes and object changes in the RIS-encrypted environment.
Implementation Method 1
configuring reflection coefficients dynamically... controlling the RIS's propagation environment
Data Source
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AI summary
Provided in the present application is a data processing method, which is applied to a first device. The method comprises: receiving a sensing service request, which is sent by a second device, the sensing service request at least carrying first information and second information, wherein the first information at least represents that a reconfigurable intelligent surface is supported to encrypt a sensing service, and the second information represents request content; and sending coefficient configuration information or sensing data of the reconfigurable intelligent surface to the second device on the basis of the first information and the second information, wherein the sensing data carries encryption information of the reconfigurable intelligent surface. Meanwhile, further provided in the present application is an electronic device.