Sensing-Assisted Beamforming for Wireless Eavesdropper Avoidance
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Solution Overview
Problem
Existing wireless communication networks face challenges in ensuring physical layer security due to the exposure of communication signals to potential eavesdroppers, as conventional beam management techniques do not adequately prevent unauthorized access.
Innovation Solution
Implementing sensing-assisted beam forming techniques, such as mono-static and bi-static sensing, to detect the presence and location of eavesdroppers, allowing for the adjustment of transmit and receive beams to prevent signal leakage to unauthorized devices, thereby enhancing physical layer security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional beam management techniques are used, then communication coverage and connectivity are maintained, but physical layer security is compromised due to signal exposure to eavesdroppers
Solution Approach 1:
The patent implements dynamic beam adjustment by continuously monitoring sensing information about potential eavesdroppers and adapting transmit beam directions in real-time. The beam management system transitions from static conventional approaches to dynamic security-aware beamforming, where beams are actively steered away from detected eavesdroppers while maintaining connectivity with legitimate users.
Solution Approach 2:
The patent introduces sensing information as an intermediary element that mediates between transmit beams and potential eavesdroppers. By incorporating sensing data about the electromagnetic environment and detected devices, the system can identify eavesdroppers and adjust beamforming weights accordingly, creating a security layer between communication signals and unauthorized receivers.
2Reliability
If sensing-assisted beam forming is implemented to detect eavesdroppers, then physical layer security is enhanced, but system complexity increases
Solution Approach 1:
The patent merges sensing functions with existing beam management procedures by integrating sensing information processing into the conventional beamforming framework. Rather than adding completely separate security systems, the patent combines sensing data acquisition, processing, and beam adjustment into a unified beam management architecture, reducing overall system complexity while enhancing security.
Solution Approach 2:
The patent makes the beam management system multi-functional by enabling it to simultaneously perform conventional connectivity maintenance and security enhancement through sensing-assisted beamforming. The same beam management infrastructure handles both traditional communication objectives and new security objectives, eliminating the need for dedicated separate systems and reducing overall complexity.
3Reliability
If transmit beams are adjusted to prevent signal leakage to eavesdroppers, then security is improved, but communication signal quality may deteriorate
Solution Approach 1:
The patent adjusts beamforming parameters (weights, directions, gains) based on sensing information to dynamically optimize the trade-off between security and signal quality. By changing beam parameters in response to detected eavesdroppers, the system can steer beams away from unauthorized receivers while maintaining adequate signal strength for legitimate users through compensatory parameter adjustments.
Solution Approach 2:
The patent implements feedback mechanisms where sensing information about eavesdroppers and communication quality metrics are continuously monitored and fed back to the beam management system. This feedback loop enables real-time optimization of beam configurations to maintain signal quality for legitimate users while preventing leakage to eavesdroppers, balancing security and performance.
Data Source
AI summary
The present application relates to devices and components including apparatuses, systems, and methods for sensing-assisted beamforming for security.