Wi-Fi Sensing-by-Proxy Link Selection to Reduce Reporting Overhead
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Solution Overview
Problem
The IEEE 802.11 Task Group has not discussed how to select the best links/STAs for Sensing by Proxy (SBP) procedures, leading to excessive reporting overhead in Wi-Fi links due to blind measurement and reporting of all possible links.
Innovation Solution
A communication apparatus and method that enables an SBP initiator to select the best links/STAs by generating a request frame indicating conditions for measurement, transmitting this frame to a second apparatus, and receiving a report frame with measurement results, thereby optimizing the SBP procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all possible links are measured and reported in the SBP reporting phase, then complete sensing information is obtained, but reporting overhead in the Wi-Fi link becomes excessively large
Solution Approach 1:
The patent extracts and reports only the most relevant sensing information from all possible links. The system identifies and selects specific links that contain valuable sensing data while excluding redundant information, thereby reducing reporting overhead while maintaining essential sensing functionality
Solution Approach 2:
The patent applies different reporting strategies to different links based on their individual characteristics and relevance to the sensing task. Instead of uniform reporting across all links, the system tailors the reporting behavior to each link's specific contribution to sensing quality, reducing overall overhead while preserving critical information
2Adaptability or versatility
If selection criteria for best links/STAs are not defined, then the SBP procedure can be implemented, but the system cannot efficiently identify optimal measurement links
Solution Approach 1:
The patent establishes selection criteria and performs preliminary evaluation of links before the actual sensing measurement phase. By pre-identifying promising links based on initial conditions and characteristics, the system avoids wasting resources on evaluating all possible links, thereby improving overall productivity
Solution Approach 2:
The system implements feedback mechanisms where measurement results from initial link evaluations are used to refine and adjust the selection criteria. This iterative process allows the system to learn from previous measurements and progressively improve its ability to identify optimal links, enhancing both efficiency and adaptability
Data Source
AI summary
The present disclosure provides a communication apparatus and a communication method for sensing by proxy, the communication apparatus comprising: circuitry, which, in operation, is configured to generate a request frame indicating a condition to be used by a second communication apparatus to select one or more links, each of the one or more links attached with to one or more third communication apparatuses; a transmitter, which, in operation, transmits the request frame to the second communication apparatus to request the second communication apparatus to perform a measurement on the one or more links; and a receiver, which, in operation, receives a report frame from the second communication apparatus carrying one or more reports of the measurement corresponding to the one or more links.