MLD-Level WLAN Sensing Coordination for Multi-Link Measurements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing WLAN sensing procedures are unclear for scenarios involving multi-link devices (MLDs), as current standards like 802.11bf and 802.11be do not provide detailed solutions for signaling between STAs affiliated with MLDs, leading to inefficiencies and unclear operational procedures.
Innovation Solution
Implementing multi-link WLAN sensing procedures where all measurement operations, except for actual channel measurements and related transmissions, are performed at the MLD level, managing multiple links centrally and efficiently, allowing for seamless communication between MLDs and standalone STAs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If WLAN sensing procedures are implemented according to 802.11bf standards, then sensing operations can be performed between standalone peer STAs, but the procedures become unclear and incompatible when STAs are affiliated with multi-link devices (MLDs)
Solution Approach 1:
The patent introduces an MLD-level intermediary layer that mediates between the 802.11bf sensing procedures (designed for standalone STAs) and the MLD architecture. This intermediary performs sensing operations at the MLD level rather than at individual STA level, adapting the standalone STA procedures to work within the MLD framework without requiring changes to the core 802.11bf sensing mechanism.
2Productivity
If sensing operations are performed at the individual STA level in MLDs, then each STA can independently conduct measurements, but duplicated setup and termination signaling occurs across multiple links
Solution Approach 1:
The patent merges multiple individual STA-level sensing operations into a single MLD-level sensing operation. By combining the sensing functions at the MLD level, the system performs sensing across multiple links simultaneously through coordinated STAs, eliminating the need for separate setup and termination signaling for each link while maintaining the independence and effectiveness of sensing operations on each link.
3Adaptability or versatility
If multi-link WLAN sensing is implemented without centralized MLD-level coordination, then individual STAs can operate autonomously, but link diversity across frequency bands cannot be fully utilized
Solution Approach 1:
The patent segments the sensing functionality into two distinct layers: MLD-level coordination functions and STA-level execution functions. The MLD level handles high-level coordination, link selection, and resource allocation to maximize link diversity utilization, while individual STAs autonomously execute the actual sensing measurements on their respective links. This segmentation allows full utilization of link diversity across frequency bands without requiring complex coordination mechanisms at the STA level.
Data Source
AI summary
Communication apparatuses and methods for multi-link WLAN sensing and/or ranging are provided. The techniques disclosed here feature a first multi-link device (MLD) comprising a first plurality of affiliated stations (STAs), wherein the first MLD comprises: at least one transceiver, and circuitry, wherein the at least one transceiver works in conjunction with the circuitry, which in operation enables one or more STAs of the first plurality of affiliated STAs to perform measurement operations with one or more STAs of a second plurality of affiliated STAs comprised in a second MLD.