Wireless LAN Sensing Configuration for Trigger-Based Instances
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Solution Overview
Problem
Existing wireless LAN systems lack efficient methods for performing sensing procedures and configuring sensing measurement instances, particularly in next-generation systems like IEEE 802.11be, which require precise sensing information and reduced power consumption.
Innovation Solution
A method and device for performing sensing measurements by STAs, including the exchange of sensing measurement setup request and response frames to configure TB (trigger-based) or non-TB sensing measurement instances, enabling proper understanding and efficient sensing measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensing measurement instances are configured without clear indication methods, then device complexity is reduced, but sensing precision and reliability deteriorate
Solution Approach 1:
The sensing measurement configuration is segmented into distinct information elements within the setup request frame. Each element (sensing measurement instance indicator, trigger frame indication, resource allocation) is separately defined and indicated, allowing precise configuration without overwhelming complexity. This segmentation enables the AP to clearly indicate multiple configuration parameters to the STA.
Solution Approach 2:
The AP performs preliminary configuration actions by indicating sensing measurement instance settings in advance through the setup request frame before actual sensing measurements begin. This preliminary indication includes pre-configuring trigger frame allocations, resource assignments, and measurement parameters, ensuring precise sensing execution without requiring complex real-time negotiations.
2Adaptability or versatility
If existing frame structures are used without modifications, then device complexity is minimized, but sensing measurement configuration capability is insufficient
Solution Approach 1:
The frame structure is made dynamic by conditionally including sensing measurement parameter elements based on the type of sensing measurement being configured. The setup request frame adapts its content depending on whether TB or non-TB sensing is used, allowing versatile configuration capability while maintaining flexibility to simplify the frame structure when certain advanced features are not needed.
Solution Approach 2:
The frame structure incorporates changeable parameters such as the sensing measurement instance indicator and trigger frame indication field, which can be adjusted based on specific sensing requirements. These parameter changes enable the same frame structure to support both TB and non-TB sensing measurements, providing adaptability without requiring entirely different frame formats.
3Reliability
If sensing measurements are performed without proper instance configuration, then power consumption is reduced, but sensing reliability and precision deteriorate
Solution Approach 1:
Sensing measurements are configured to occur periodically based on the indicated sensing measurement instance settings. The AP indicates to the STA when measurements should be performed using trigger frames, allowing measurements to be conducted at specific periodic intervals rather than continuously. This ensures reliable sensing data collection while minimizing power consumption by keeping the sensing circuitry dormant between measurement periods.
Data Source
AI summary
A method and a device for performing sensing measurement in a wireless LAN system are disclosed. In one embodiment of the present disclosure, the method for performing sensing measurement in a wireless LAN system comprises the steps of: receiving, from a second STA, a sensing measurement setup request frame including a sensing measurement parameter element; transmitting, to the second STA, a sensing measurement setup response frame in response to the measurement setup request frame; and performing sensing measurement at a sensing measurement instance on the basis of the sensing measurement parameter element, wherein the sensing measurement parameter element can comprise: i) first information indicating whether the sensing measurement instance is a trigger based (TB) sensing measurement instance or a non-TB sensing measurement instance; and ii) second information indicating the configuration of the sensing measurement instance on the basis of the first information.