SBP Request Frame Fields for Flexible WLAN Sensing Privacy
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Solution Overview
Problem
Existing wireless local area network (WLAN) sensing technologies, particularly in the context of sensing by proxy (SBP), face limitations in flexibility and privacy issues during sensing performance improvements.
Innovation Solution
Adjusting and optimizing the rules for setting fields in the SBP procedure by defining the Mandatory Preferred Responder field, Number of Sensing Responders field, and Mandatory Number of Responders field to enhance flexibility and privacy in the SBP communication method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the second field and third field are reserved fields when preferred sensing responder is mandatory, then the protocol structure is simplified, but the sensing performance and flexibility are limited
Solution Approach 1:
The patent makes the second and third fields dynamic rather than static reserved fields. When the preferred sensing responder is mandatory, these fields are activated to carry the number of sensing responders and mandatory number information. This dynamic field activation allows the protocol to adapt its structure based on operational needs, resolving the contradiction between simplified structure and sensing performance.
Solution Approach 2:
The patent changes the parameter state of the second and third fields from 'reserved' to 'active carrying data' based on the mandatory preferred responder indicator. This parameter change enables the system to convey additional sensing responder information when needed, improving sensing performance without permanently complicating the protocol structure.
2Measurement precision
If more sensing responder information is exchanged, then sensing performance is improved, but privacy leakage risk increases
Solution Approach 1:
The patent implements a controlled feedback mechanism where the SBP initiator can indicate the number of sensing responders through the second and third fields. This allows the initiator to request only the necessary amount of sensing responder information, preventing excessive information exchange and reducing privacy leakage risk while maintaining sensing performance.
Solution Approach 2:
The patent enables partial information exchange by allowing the SBP initiator to specify exactly how many sensing responders are needed. Instead of exchanging all possible sensing responder information, the system exchanges only the partial amount required, thus improving sensing performance without unnecessary privacy risks.
Data Source
AI summary
A communication method and a related apparatus are provided. An SBP initiator determines a first request frame, and transmits the first request frame to a sensing by proxy (SBP) responder. When a value of a first field in the first request frame indicates that a preferred sensing responder in a preferred sensing responder list carried in the first request frame is mandatory, a second field and/or a third field in the first request frame are/is not reserved fields/a reserved field. The second field indicates a number of sensing responders requested by the SBP initiator, and the third field indicates whether the number of sensing responders is mandatory.