Wi-Fi Sensing Role Switching for Resource Optimization
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Solution Overview
Problem
The Wi-Fi sensing process requires a significant amount of network resources, leading to inefficiencies and potential compromises in sensing accuracy.
Innovation Solution
The proposed solution involves switching sensing roles between WiFi devices based on the urgency of the sensing task, using low-precision CSI for non-urgent tasks and high-precision CSI for urgent tasks, thereby optimizing network resource utilization without compromising accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the AP continuously performs high-precision sensing measurements as the initiator, then sensing accuracy is improved, but network resource consumption increases significantly
Solution Approach 1:
The patent implements dynamic role switching between AP and STA for sensing measurements. The AP can switch from being the sensing initiator to the sensing responder based on channel conditions and task urgency. This dynamic adjustment allows the system to use high-precision measurements only when necessary (urgent tasks) and low-precision measurements during normal operations, thereby resolving the contradiction between maintaining sensing accuracy and reducing network resource consumption.
Solution Approach 2:
The patent changes the operational parameters of the sensing system by switching the role of the AP between initiator and responder. When the AP is the initiator, high-precision CSI is obtained; when the AP is the responder, lower-precision measurements are used. This parameter change approach allows flexible adjustment of measurement precision according to actual needs, balancing accuracy requirements with network resource efficiency.
2Stability of the object's composition
If the sensing role is fixed with AP as initiator, then measurement consistency is improved, but adaptability to changing channel conditions deteriorates
Solution Approach 1:
The patent introduces dynamic role switching between AP and STA based on real-time channel conditions and task requirements. The AP monitors channel state and switches between being the sensing initiator and responder accordingly. This dynamic mechanism maintains measurement consistency through standardized procedures while simultaneously adapting to changing channel conditions by adjusting which device performs measurements, thus resolving the contradiction between consistency and adaptability.
Solution Approach 2:
The patent implements a feedback mechanism where the AP continuously monitors channel conditions and task urgency, then adjusts the sensing role assignment accordingly. This feedback loop ensures that the sensing system adapts to changing environmental conditions while maintaining consistent measurement procedures, balancing measurement consistency with environmental adaptability.
Data Source
AI summary
The disclosure provides a method and an AP for wireless communication, an electronic device and a non-transitory computer-readable medium. The method for wireless communication, including: establishing a sensing session between an AP as a sensing initiator and a non-AP STA as a sensing responder; performing a first measurement, wherein the AP acts as a sensing transmitter and the STA acts as a sensing receiver; and in response to determining that a preset condition is met, switching from the first measurement to a second measurement, wherein the STA acts as a sensing transmitter and the AP acts as a sensing receiver.