WLAN Sensing Frame Negotiation for Candidate Time Period Setup

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Solution Overview

Problem

The efficiency of the sensing measurement setup process in wireless local area network (WLAN) sensing is low, leading to resource waste due to inefficiencies in determining compatible time periods for sensing measurements between communication devices.

Innovation Solution

A communication method where an access point (AP) and a station (STA) negotiate candidate time periods for sensing measurement by exchanging frames that indicate available time periods, allowing them to reach a consensus on suitable time periods for sensing measurement setup, thereby improving efficiency and resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the sensing measurement setup process uses traditional negotiation methods, then the devices can establish sensing sessions, but the setup efficiency is low and resource utilization is poor

Engineering Contradiction:
Improvesensing measurement setup efficiencyVSAvoidresource waste
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by having the access point pre-determine and indicate multiple candidate time periods for sensing measurement in the first communication frame. This allows the station to select from predetermined options rather than negotiating each parameter separately, significantly reducing the setup time and improving efficiency while avoiding resource waste through optimized time period selection.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the AP provides multiple candidate time periods to the STA, then the STA can select suitable time periods for sensing measurement, but the negotiation process becomes more complex

Engineering Contradiction:
Improvetime period selection flexibilityVSAvoidnegotiation process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the time period negotiation into discrete candidate time periods indicated by the access point. Instead of negotiating continuous time parameters, the system segments time into specific candidate periods, allowing the station to select from predefined options. This simplifies the negotiation process while maintaining flexibility, as the complexity is managed through structured segmentation rather than open-ended negotiation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250392944A1Communication method and communication apparatus
Publication Date: 2025.12.25 HUAWEI TECH CO LTD
  • US20250392944A1 patent drawing
  • US20250392944A1 patent drawing
  • US20250392944A1 patent drawing

AI summary

This application provides a communication method and a communication apparatus. This application is applied to a wireless local area network system that supports a next-generation Wi-Fi protocol of IEEE 802.11ax (for example, 802.11bf, 802.11be, Wi-Fi 8, EHT, UHR, or another 802.11 series protocol), and may be further applied to a UWB-based wireless personal area network system and a sensing system. The method includes an access point (AP) determining a first communication frame, where the first communication frame includes first information, and the first information indicates N candidate time periods for sensing measurement. The AP then sends the first communication frame to a station (STA). This can improve efficiency of sensing measurement setup and improve resource utilization.