WLAN Sensing Setup Response Frame Retry Timing
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Solution Overview
Problem
Existing wireless local area network (WLAN) sensing procedures lack efficient mechanisms for handling rejected sensing measurement setup requests, leading to inefficient re-attempts and unclear timing for subsequent requests, and fail to specify bandwidth requirements effectively.
Innovation Solution
Incorporating a parameter for 'earliest comeback time' in the Sensing Measurement Setup Response frame to define the minimum time a sensing initiator must wait before re-attempting a setup request, and introducing a 'requested bandwidth' or 'minimum bandwidth' parameter to specify bandwidth requirements, allowing for more precise signaling of measurement setup parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a sensing measurement setup request is rejected without providing retry timing information, then the response frame structure remains simple, but the sensing initiator cannot determine when to re-attempt, leading to inefficient re-attempts and increased network load
Solution Approach 1:
The response frame is segmented into distinct fields: a status code field indicating rejection and a separate earliest comeback time field specifying when re-attempt is permitted. This segmentation allows the response to convey multiple pieces of information (rejection status and timing guidance) in an organized, structured manner without overwhelming complexity
Solution Approach 2:
The earliest comeback time field provides advance information to the sensing initiator about when it is permitted to re-attempt the sensing measurement setup request. This preliminary timing guidance prevents premature re-attempts and optimizes retry scheduling before the actual re-attempt occurs
2Measurement precision
If bandwidth requirements are not specified in sensing measurement setup requests, then the request frame remains simple, but the sensing responder cannot allocate appropriate resources, leading to suboptimal measurement quality
Solution Approach 1:
The request frame includes a dedicated bandwidth field that segments the bandwidth specification from other request parameters. This dedicated field allows the sensing initiator to clearly indicate bandwidth requirements while maintaining an organized and structured request frame format
Solution Approach 2:
The bandwidth field in the request frame is configured with specific parameter settings that define the minimum bandwidth required for sensing measurements. By adjusting this parameter, the sensing initiator can adapt bandwidth requirements to match the specific measurement quality needs of different sensing applications
3Speed
If the sensing initiator re-attempts rejected requests immediately without waiting, then the re-attempt process is fast, but the sensing responder is overwhelmed with continuous requests, increasing network load and reducing overall system performance
Solution Approach 1:
The earliest comeback time field provides preliminary guidance to the sensing initiator to delay re-attempt requests until an appropriate time. This preliminary timing constraint prevents the harmful effect of overwhelming the sensing responder with immediate continuous re-attempts, balancing speed with system sustainability
Data Source
AI summary
A first device may include one or more processors configured to define, specify, and/or signal new parameters relating to an earliest comeback time, a requested bandwidth, a minimum bandwidth, and/or an interval between sensing measurements The one or more processors may be configured to receive, through a transceiver from a second device in a wireless local area network (WLAN), a request frame indicating a request for a sensing measurement setup. Responsive to the request frame, the one or more processors may be configured to generate a response frame indicating that the request is rejected, the response frame including a first field indicating a minimum time for which the second device waits until sending a next request frame for a sensing measurement setup. The one or more processors may be configured to wirelessly transmit, through the transceiver to the second device in the WLAN, the response frame.