Wireless LAN Sensing Setup Parameter Negotiation
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Solution Overview
Problem
Current wireless local area network (WLAN) systems face challenges in efficiently performing sensing procedures, including transmitting and receiving request and response frames for sensing setup, and managing sensing measurement parameters.
Innovation Solution
A method and device for performing a sensing procedure in a WLAN system, which involves receiving a sensing setup request frame with sensing measurement parameters, and transmitting a sensing setup response frame with a status code. The status code indicates whether to accept the suggested sensing measurement parameters, allowing for preferred parameters to be suggested by the first station (STA) if the initial parameters are not acceptable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first STA accepts the sensing measurement parameters from the second STA, then the sensing setup is simplified, but the first STA cannot optimize for its preferred parameters
Solution Approach 1:
The patent implements a dynamic parameter negotiation mechanism where the system can switch between two modes: accepting parameters from the second STA (simplified operation) or suggesting preferred parameters (adaptability). The first STA dynamically selects the appropriate mode based on its needs, resolving the contradiction between operational simplicity and parameter flexibility.
Solution Approach 2:
The patent introduces a status code field in the sensing setup response frame that can take different values to indicate whether the first STA accepts or suggests parameters. This parameter change mechanism allows the system to flexibly switch between accepting external parameters and proposing optimized parameters, thereby resolving the contradiction between simplicity and adaptability.
2Reliability
If the first STA suggests preferred sensing measurement parameters, then the sensing measurement effectiveness is improved, but the communication overhead increases
Solution Approach 1:
The sensing setup response frame is designed with multi-functionality, serving both as an acceptance confirmation and as a parameter suggestion vehicle. The same frame structure handles both scenarios (accepting parameters or suggesting parameters) through the status code field, avoiding the need for separate frame types and reducing overall system complexity despite the enhanced functionality.
Solution Approach 2:
The patent implements a feedback mechanism where the first STA provides information about its preferred sensing parameters to the second STA through the status code and parameter fields. This feedback loop enables the second STA to understand the first STA's preferences and adjust future parameter suggestions, improving sensing effectiveness without requiring complex permanent configuration changes.
3Loss of information
If the sensing setup response frame includes both status code and preferred parameters, then the information completeness is improved, but the frame size increases
Solution Approach 1:
The patent extracts only the essential elements needed for parameter negotiation into the sensing setup response frame: the status code field and the preferred parameters field. By taking out only these critical components rather than including all possible sensing parameters, the frame maintains information completeness for the negotiation purpose while keeping the size manageable.
Solution Approach 2:
The patent applies partial action by including only the necessary subset of information in the response frame. When the status code indicates parameter suggestion, only the preferred parameters relevant to the negotiation are included, not all possible sensing parameters. This partial inclusion strategy provides sufficient information for the negotiation while avoiding unnecessary frame size expansion.
Data Source
AI summary
A method and a device for performing a sensing procedure in a wireless LAN system are disclosed. The method by which a first station (STA) performs a sensing procedure in a wireless LAN system comprises the steps of: transmitting, to a second STA, a sensing setup request frame including at least one sensing measurement parameter; and transmitting, to the second STA, a sensing setup response frame including a state code related to the at least one sensing measurement parameter, wherein, on the basis that the state code indicates that the first STA presents a sensing measurement parameter preferred by the first STA instead of the at least one sensing measurement parameter, the sensing setup response frame can include the preferred sensing measurement parameter.