WLAN Access Point Priority Device Management
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Solution Overview
Problem
In Wi-Fi networks, as the number of connected devices increases, regular users experience decreased performance due to contention for the shared radio frequency channel, leading to issues like slow web page loading, dropped video frames, and bad voice quality, especially when visiting devices consume high bandwidth services.
Innovation Solution
A network controller monitors traffic and identifies privileged devices, offering them prioritized access by adjusting operational parameters such as band steering, Quality of Service, and access control when network utilization exceeds a threshold, ensuring regular users maintain performance at the expense of visiting devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If all devices are given equal priority access to the shared channel, then fairness is maintained, but network performance deteriorates when the number of connected devices increases
Solution Approach 1:
The patent assigns different priority levels to different devices based on their user status (regular user vs. visitor). Privileged devices associated with regular users receive preferential treatment in channel access, while visiting devices receive standard access. This local differentiation resolves the contradiction by maintaining fairness within user groups while improving overall network performance for paying customers.
2Adaptability or versatility
If visiting devices are allowed to connect and use high bandwidth services, then network versatility is improved, but performance for regular users deteriorates due to channel contention
Solution Approach 1:
The system differentiates between visiting devices and regular user devices by assigning privileged status to regular user devices. This allows the network to accommodate diverse devices and users (versatility) while ensuring that paying customers maintain acceptable performance levels even when many visitors are connected.
3Reliability
If QoS is implemented to prioritize certain services, then service quality is improved, but device complexity increases
Solution Approach 1:
The patent implements QoS by changing the priority parameter for packet transmission based on device status. Privileged devices receive higher priority markings on their packets, which the access point uses to determine channel access timing. This parameter-based approach provides service quality differentiation without requiring complex processing or multiple hardware components.
Data Source
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AI summary
In a WLAN with many concurrent users, a wireless access point is configured with information relating to a set of priority devices and when network utilisation exceeds a particular threshold, the wireless access point is arranged to identify a priority device connected to the WLAN, determine a policy for reconfiguring the WLAN to enable better performance to the priority device, and offer the improvements to the priority device. The changes to the WLAN are only applied if a user of the priority device opts to apply the changes thereby changing the WLAN performance in accordance with user requirements.