Unassociated AP TXOP Sharing for Coordinated Medium Access
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Solution Overview
Problem
Existing wireless communication networks face inefficiencies in medium access coordination between unassociated access points, leading to suboptimal utilization of wireless resources due to uncoordinated use of transmission opportunities (TXOP) and increased signal collisions.
Innovation Solution
A signaling framework for unassociated access points (APs) allows coordination through the exchange of frames that indicate wireless medium coordination information, enabling efficient sharing and return of TXOPs even when APs are in an unassociated state, using mechanisms like TXOP return indications and management frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If unassociated APs access the wireless medium independently without coordination, then each AP can autonomously obtain TXOPs, but wireless resource utilization deteriorates due to uncoordinated access and increased signal collisions
Solution Approach 1:
The patent introduces coordination frames as an intermediary mechanism between unassociated APs. These frames carry TXOP coordination information that enables APs to negotiate and coordinate their medium access without being associated, thereby improving resource utilization while maintaining autonomous operation
Solution Approach 2:
The patent implements a feedback mechanism where APs exchange coordination frames containing information about their TXOP status, buffer status, and medium access intentions. This feedback allows APs to adjust their access behavior dynamically, reducing collisions and improving overall system efficiency
2Reliability
If unassociated APs exchange coordination frames, then medium access coordination improves, but communication overhead increases due to additional frame exchanges
Solution Approach 1:
The coordination frames are designed to serve multiple functions simultaneously: they convey TXOP coordination information, buffer status, and medium access intentions in a single frame structure. This multi-functionality reduces the number of separate frame exchanges needed, thereby lowering overhead while maintaining coordination effectiveness
Solution Approach 2:
The patent implements optional coordination mechanisms where APs can exchange coordination frames selectively based on their current state and needs. Not all APs need to exchange frames at all times, and the coordination level can be adjusted, preventing excessive frame exchanges while still providing coordination where beneficial
Data Source
AI summary
This disclosure provides methods, components, devices and systems for a signaling framework for unassociated access point (AP) coordination. Some aspects more specifically relate to unassociated AP coordination with respect to transmission opportunity (TXOP) sharing (TXS). In some examples, a first AP may obtain a TXOP via performing a contention resolution procedure and may transmit an indication of a portion of the TXOP to share as well as an indication of wireless medium coordination information to a second AP that is in an unassociated state with respect to the first AP. The first AP may receive one or more frames from the second AP based at least in part on the wireless medium coordination information. The second AP also may transmit one or more frames to one or more other APs, where the one or more frames may indicate a TXOP return indication according to the wireless medium coordination information.