Pairwise WLAN Sensing Session Setup and Teardown

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Solution Overview

Problem

Existing technologies lack a clear method for setting up and tearing down wireless communication sensing sessions, particularly in WLAN systems, which are essential for functions like intrusion detection and gesture recognition.

Innovation Solution

A method and device for wireless communication that enables the setup and teardown of sensing sessions based on the type of the session, using MLME-SAP interface primitives to manage resource allocation and frame interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a sensing session is established using existing WLAN protocols, then sensing functions can be performed, but there is no clear method for setting up and tearing down sensing sessions leading to management complexity

Engineering Contradiction:

Improvesensing session managementVSAvoidsession setup and teardown procedures

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the sensing session management into distinct phases: setup phase (using MLME-SAP interface primitives to establish the session) and teardown phase (using corresponding primitives to terminate the session). This segmentation provides clear, separate procedures for each operation, making the overall management process more manageable and less complex.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces preliminary actions in the form of setup procedures that must be performed before sensing operations can begin. The MLME-SAP interface primitives establish the sensing session with predefined parameters and configurations, so that when the actual sensing occurs, the framework is already in place, simplifying the overall operation.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If resource allocation is managed without structured primitives, then flexibility is maintained, but network load increases due to inefficient management

Engineering Contradiction:

Improvesensing session setup efficiencyVSAvoidnetwork load

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The MLME-SAP interface primitives enable the WLAN management entity to automatically manage sensing session resources without requiring extensive external coordination. The primitives handle resource allocation, session establishment, and teardown autonomously, improving efficiency while reducing the overall network load through automated self-service mechanisms.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The structured primitives incorporate feedback mechanisms where the sensing session status, resource allocation state, and teardown completion are reported back through the same interface. This feedback loop enables efficient resource management by allowing the system to adjust allocations based on actual usage, reducing wasted network resources and improving overall productivity.

Inventive Principle:

Principle #23Feedback

Data Source

PatentEP4391625B1Wireless communication method and system for setting up a pairwise sensing session

Publication Date: 2025.10.29 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

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AI summary

A wireless communication method and device. The method comprises: a sensing session initiation device executing a target sensing session establishment process according to the type of a target sensing session to be established, and/or the sensing session initiation device or a sensing session response device being capable of executing a target sensing end-of-session process according to the type of a target sensing session to be ended.