Multi-Link Communication Frames for Flexible TWT Teardown
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Solution Overview
Problem
In multi-link communication scenarios, there is a need for efficient and flexible methods to tear down Target Wake Time (TWT) agreements between multi-link devices.
Innovation Solution
A communication frame is designed with specific fields to indicate which links to tear down TWT agreements or plans, using a first field for link identification and a second field to specify the teardown action, allowing for flexible and efficient management of TWT agreements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional TWT teardown methods are used in multi-link scenarios, then the process becomes complex and inflexible, but the patent introduces a communication frame with specific fields to improve flexibility and efficiency
Solution Approach 1:
The patent segments the TWT teardown process into distinct fields within a communication frame: a first field indicating specific links and a second field indicating the teardown action. This segmentation allows precise control over which TWT agreements are torn down on which links, providing flexibility while maintaining a structured, manageable process that doesn't become overly complex despite multi-link involvement.
2Productivity
If multiple TWT agreements need to be managed across multiple links, then signaling overhead increases, but the patent uses efficient field structures to reduce overhead
Solution Approach 1:
The communication frame structure serves multiple functions simultaneously: the first field identifies which links are affected, the second field specifies the teardown action, and together they can handle various scenarios (single link, multiple links, selective TWT agreements). This multi-functional design reduces the need for separate signaling messages for different teardown scenarios, thereby reducing overall signaling overhead while improving management efficiency.
Data Source
AI summary
A multi-link communication method and an apparatus are disclosed, are used in a wireless local area network system that supports 802.11 series protocols. The method includes: A station in a multi-link device generates a communication frame, and sends the communication frame. A peer station operating on a same associated link as the sending station of the communication frame receives the communication frame, and tears down a TWT agreement based on the communication frame. The communication frame includes a first field and a second field. The first field indicates one or more links, and the second field indicates to tear down a TWT agreement or a TWT plan between multi-link devices.