WLAN Trigger Frame Feedback for Precise Sensing Measurement Reporting
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Solution Overview
Problem
The mechanism for using trigger frames to trigger measurement result feedback in WLAN sensing is incomplete and needs enhancement.
Innovation Solution
The proposed solution involves improving the mechanism of using trigger frames to enhance the feedback of measurement results by specifying the sensing measurement setup identifiers and instance identifiers, allowing for prompt or delayed feedback, and including various formats to indicate which measurement results need to be reported.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the trigger frame mechanism is enhanced with detailed sensing measurement setup identifiers and instance identifiers, then the precision of measurement result reporting is improved, but the frame structure complexity increases
Solution Approach 1:
The trigger frame is segmented into distinct functional fields: sensing measurement setup identifier field, sensing measurement instance identifier field, and feedback timing indicator field. This segmentation allows each field to serve its specific purpose independently, improving measurement result reporting precision while maintaining manageable frame structure through organized division of information elements.
Solution Approach 2:
The trigger frame is designed as a multi-functional structure that simultaneously identifies sensing measurement setups, specifies measurement instances, indicates feedback timing (prompt or delayed), and triggers measurement result reporting. This universal design consolidates multiple control functions into a single frame type, improving reporting precision without proportionally increasing overall structural complexity.
2Productivity
If prompt feedback is implemented for measurement results, then the efficiency of WLAN sensing process is improved, but the timing synchronization requirements increase
Solution Approach 1:
The feedback timing mechanism is designed dynamically through the feedback timing indicator field in the trigger frame, which can specify either prompt feedback or delayed feedback based on current WLAN sensing process requirements. This dynamic adaptability allows the system to optimize for efficiency when conditions permit, while maintaining reliability by switching to delayed feedback when timing synchronization challenges arise, thus resolving the contradiction between efficiency improvement and synchronization reliability.
Data Source
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AI summary
Provided in the present invention are a communication method and a communication apparatus. The communication method may comprise: sending a null data packet announcement (NDPA) frame, wherein the NDPA frame carries a sensing measurement setup identifier; sending a null data packet (NDP) frame; and sending a trigger frame, wherein the trigger frame comprises first information, and the first information identifies and feeds back a measurement result of a sensing measurement event corresponding to at least one instance of sensing measurement setup.