WLAN Trigger Frame Sensing Measurement Optimization
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Solution Overview
Problem
Current wireless local area network (WLAN) sensing methods face inefficiencies in measuring changes in WLAN signals scattered and/or reflected by people or objects, requiring improvements in the sensing measurement phase.
Innovation Solution
A communication method and device that transmit and receive trigger frames carrying sensing measurement-related information, including trigger frame types and parameters, to facilitate efficient sensing measurements in WLAN systems, supporting both EHT and HE TB sensing measurement frames for concurrent channel estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional WLAN sensing measurement methods are used, then the sensing measurement process can be completed, but the measurement efficiency and accuracy are insufficient
Solution Approach 1:
The patent introduces trigger frames with specific parameters (trigger type, sensing measurement information, resource allocation) to control and optimize the sensing measurement process. By changing the parameter structure of communication frames, the system achieves both high measurement accuracy and improved efficiency through standardized parameter sets for different measurement scenarios
Solution Approach 2:
The sensing measurement process is divided into distinct phases controlled by different trigger frame types (sensing poll trigger frame, sensing trigger frame, feedback trigger frame). Each phase handles specific measurement tasks independently, improving overall measurement efficiency while maintaining accuracy through specialized processing for each segment
2Measurement precision
If trigger frames with detailed sensing measurement information are transmitted, then measurement accuracy improves, but communication overhead increases
Solution Approach 1:
The trigger frame structure is designed to serve multiple functions simultaneously: it carries sensing measurement information, resource allocation details, and control commands in a single standardized frame format. This multi-functionality reduces the total number of separate messages needed, lowering communication overhead while maintaining comprehensive measurement accuracy
Solution Approach 2:
The patent combines multiple pieces of sensing measurement information (measurement parameters, resource allocation, trigger commands) into a single integrated trigger frame structure. By merging these elements that were previously transmitted separately, the system reduces communication overhead while ensuring all necessary information is available for accurate measurements
Data Source
AI summary
A communication method includes: transmitting and/or receiving, by a communication device, a trigger frame carrying sensing measurement related information.