Dynamic WLAN Sensing Triggers for Uplink Resource Allocation
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Solution Overview
Problem
Existing WLAN sensing measurement processes face challenges in determining the need for transmitting trigger frames multiple times to optimize uplink sensing measurements, particularly in TB-Based scenarios, which can lead to inefficiencies in resource allocation and measurement accuracy.
Innovation Solution
A method and apparatus that involve transmitting a polling frame to determine a first resource parameter, followed by a first trigger frame to determine a second resource parameter, and then deciding based on these parameters whether to transmit a second trigger frame, ensuring alignment with a same sensing measurement setup identifier to optimize resource allocation for uplink sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If trigger frames are transmitted multiple times in TB-Based mode, then uplink sensing measurement accuracy is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent applies dynamics by making the trigger frame transmission count adjustable rather than fixed. The sensing initiator dynamically determines whether to transmit one or multiple trigger frames based on real-time assessment of uplink resource parameters and sensing responder requirements, allowing the system to adapt between measurement accuracy and resource efficiency modes
Solution Approach 2:
The patent changes the parameter of trigger frame transmission count from a static configuration to a dynamic variable. By assessing uplink resource parameters (such as spatial streams, bandwidth, and responder capacity) and adjusting the transmission count accordingly, the system optimizes the balance between measurement precision and resource allocation efficiency
2Productivity
If a single trigger frame is transmitted, then resource allocation efficiency is improved, but sensing measurement completeness deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the sensing initiator assesses uplink resource parameters and sensing responder capabilities after receiving responses to the first trigger frame. This feedback loop enables the initiator to determine whether additional trigger frames are needed to ensure complete sensing measurement, thereby balancing efficiency with completeness
3Reliability
If multiple trigger frames are transmitted, then uplink sensing measurement completeness is improved, but transmission time increases
Solution Approach 1:
The patent makes the trigger frame transmission strategy dynamic by continuously assessing resource parameters and responder status. The sensing initiator transmits only as many trigger frames as necessary to achieve complete sensing measurement, avoiding unnecessary transmissions and minimizing time loss while ensuring measurement completeness
Data Source
AI summary
A method, apparatus and computer readable medium for wireless local area network (WLAN) sensing measurement. The WLAN sensing measurement is performed by: transmitting a polling frame and determining a first resource parameter of an uplink resource for a WLAN sensing measurement process; transmitting a first trigger frame and determining a second resource parameter of one or more sensing responders participating in trigger frame (TF) sounding; and based on at least one of the first resource parameter or the second resource parameter, determining whether to transmit a second trigger frame, where the second trigger frame and the first trigger frame correspond to a same sensing measurement setup identifier.