Wireless AP Channel Access Coordination for Low-Latency Time Regions
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Solution Overview
Problem
Wireless communication networks lack mechanisms for reliable coordination between access points (APs) to prioritize channel access and ensure low-latency communication, especially when an ongoing channel access procedure intersects with a coordinated time region, leading to inefficient resource utilization and increased latency.
Innovation Solution
APs coordinate by receiving information about a coordinated time region and channel access parameters, allowing them to pause or interrupt their ongoing channel access procedures and resume or initiate new procedures in compliance with the indicated parameters, thereby ensuring prioritized access for high-priority traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If APs use traditional independent channel access procedures, then each AP can autonomously manage its own transmissions, but coordination between APs is insufficient leading to increased latency and inefficient resource utilization
Solution Approach 1:
The patent applies preliminary action by having APs exchange coordination information and establish coordinated time regions before actual transmissions occur. APs prepare coordination parameters and schedule alignments in advance, allowing them to interrupt ongoing channel access procedures at predetermined times to ensure low-latency communication during coordinated periods without requiring complex real-time negotiation during transmission.
2Loss of time
If APs interrupt ongoing channel access procedures to prioritize coordinated time regions, then low-latency communication is achieved, but channel access efficiency may be reduced due to frequent interruptions
Solution Approach 1:
The patent applies dynamics by implementing adaptive channel access parameters that change based on the coordinated time region status. APs dynamically adjust their channel access behavior by interrupting ongoing procedures only when necessary to enter coordinated time regions, while maintaining normal access efficiency during non-coordinated periods. This dynamic adaptation allows the system to optimize between latency and throughput based on real-time coordination needs.
3Productivity
If APs implement coordinated time regions with specific channel access parameters, then resource utilization efficiency improves, but the complexity of managing multiple access procedures increases
Solution Approach 1:
The patent applies segmentation by dividing the operational timeline into distinct coordinated time regions and non-coordinated periods. This temporal segmentation allows APs to manage complexity by handling different access procedures in separate time segments rather than simultaneously, reducing the cognitive load on the MAC layer while still achieving coordinated resource utilization across multiple APs.
4Stability of the object's composition
If APs continuously monitor and coordinate channel access, then synchronization between APs improves, but processing overhead increases
Solution Approach 1:
The patent applies periodic action by having APs exchange coordination information at predetermined intervals rather than continuously monitoring. This periodic coordination mechanism maintains synchronization stability by updating coordination parameters at scheduled times while significantly reducing processing energy consumption compared to continuous monitoring and negotiation protocols.
Data Source
AI summary
This disclosure provides methods, components, devices and systems for coordinated channel access between wireless access points (APs). Some aspects more specifically relate to mechanisms according to which a first AP provides prioritized channel access for a second AP across various scenarios, including scenarios in which the first AP has an ongoing channel access procedure at a beginning of a coordinated time region of the second AP. The coordinated time region of the second AP may be associated with a first set of channel access parameters. In accordance with initiating a first channel access procedure prior to the coordinated time region in accordance with a second set of channel access parameters different than the first set of channel access parameters, the first AP may interrupt the first channel access procedure at or prior to the beginning of the coordinated time region.