Sensing by Proxy WLAN Measurement Reducing Latency
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Solution Overview
Problem
The existing Wi-Fi technology faces inefficiencies in WLAN sensing due to the lack of capability for stations (STA) to communicate with multiple responders simultaneously, leading to wasted spectrum resources and increased latency, particularly in high-latency communication scenarios.
Innovation Solution
A sensing by proxy (SBP) method where an access point (AP) acts as a proxy for the STA, establishing a wireless local area network (WLAN) sensing measurement by sending specific frames to select responders, optimizing the SBP process to avoid waste and improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the STA communicates with multiple responders simultaneously in WLAN sensing, then the sensing measurement capability is improved, but the spectrum resources are wasted and latency increases
Solution Approach 1:
The patent introduces an Access Point (AP) as an intermediary device that acts as a proxy for the Station (STA). The AP receives sensing measurement requests from the STA and forwards them to multiple responders simultaneously, enabling the STA to conduct sensing measurements without directly communicating with multiple responders. This intermediary approach allows the STA to maintain single-response communication while achieving multi-responder sensing capability through the AP's mediation.
Solution Approach 2:
The patent employs the concept of proxying where the AP creates a representative communication path for the STA. Instead of the STA directly establishing multiple communication channels with different responders, the AP copies the sensing measurement function and performs the communication with multiple responders on behalf of the STA. This copying mechanism enables the STA to access multiple responders through a single communication interface via the AP.
2Adaptability or versatility
If the STA communicates with multiple responders simultaneously in WLAN sensing, then the sensing measurement capability is improved, but the latency increases
Solution Approach 1:
The AP serves as a mediator that consolidates multiple sensing measurement communications into a single coordinated process. The STA communicates with the AP, which then manages communication with multiple responders in an organized manner, reducing the latency that would otherwise result from the STA attempting to establish multiple simultaneous communication channels directly with different responders.
3Adaptability or versatility
If the STA acts as sensing initiator communicating with multiple responders, then the sensing coverage is expanded, but the device complexity increases
Solution Approach 1:
The patent shifts the complexity from the STA to the AP by introducing the AP as an intermediary. The STA maintains simple single-response communication capability, while the AP handles the complex multi-responder communication coordination. This allows the sensing coverage to be expanded without increasing the STA's device complexity, as the AP assumes the burden of managing multiple communication channels.
Data Source
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AI summary
A sensing by proxy (SBP) measurement method and apparatus. The SBP measurement method comprises: sending an SBP request frame to an SBP response end (101); and sending a wireless frame to a first response end in the SBP response end; wherein the wireless frame is used for instructing the first response end, as a proxy of an SBP initiating end, to establish wireless local area network (WLAN) sensing measurement, and the wireless frame comprises an acknowledgement (ACK) message frame or an SBP ACK frame (102). The SBP initiating end sends the wireless frame to the first response end in the SBP response end to establish an SBP process, thereby avoiding the waste of invalid message frames and perfecting an SBP establishment mechanism so that the SBP establishment mechanism is suitable for WLAN sensing measurement.