Coordinated Multiple Access on Secondary Primary Channels
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently coordinating multiple access on multiple primary channels, leading to suboptimal resource utilization and increased latency.
Innovation Solution
The system enables coordinated multiple access by allowing access points (APs) to transmit signals on secondary primary channels, indicating available TXOP portions for sharing with other APs, and exchanging capability signaling to support multiple access techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wireless device switches to another primary wireless channel when the wireless medium is occupied, then channel access is maintained, but resource utilization deteriorates due to unused TXOP portions
Solution Approach 1:
The patent merges the TXOP resources of multiple access points by enabling one AP to share its unused TXOP portion with another AP on a secondary primary channel. This combining of resources allows the second AP to utilize the time-frequency resources that would otherwise remain idle, thereby improving overall resource utilization and reducing latency in the wireless network.
2Productivity
If access points share TXOP portions on secondary primary channels, then resource utilization improves, but system complexity increases due to coordination requirements
Solution Approach 1:
The patent implements self-service mechanisms where access points autonomously negotiate and share TXOP resources without requiring centralized coordination. The first AP independently identifies its unused TXOP portion and proactively shares it with a second AP through capability signaling and sharing signals on secondary primary channels, reducing the complexity of inter-AP coordination while improving resource utilization.
3Adaptability or versatility
If capability signaling is exchanged between access points, then coordinated multiple access is enabled, but communication overhead increases
Solution Approach 1:
The patent extracts the capability signaling exchange from the primary communication channel and moves it to secondary primary channels. By separating the capability negotiation process from the main data transmission path, the system enables coordinated multiple access functionality without significantly increasing overhead on the primary channel, thus maintaining adaptability while minimizing information loss.
Data Source
AI summary
This disclosure provides methods, components, devices and systems for enabling coordinated multiple access on multiple primary channels. Some aspects more specifically relate to inter access point (AP) coordination to share a portion of a transmission opportunity (TXOP). A first AP may transmit a first signal on a secondary primary channel conveying an indication that a portion of the TXOP is available for sharing. The second AP may respond with a confirmation on the secondary primary channel that the second AP is tuned to the secondary primary channel. Accordingly, the second AP may transmit a second signal on the secondary primary channel to the first AP indicating that the portion of the TXOP is available for use. The second AP may use the portion of the TXOP to communicate with one or more station(s) on the secondary primary channel.