Wi-Fi Band Steering Offset Adjustment for Connection Stability
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Solution Overview
Problem
Conventional home network controllers frequently steer client devices between 2.4G and 5G wireless bands excessively, leading to constant disconnections and poor user experience due to repeated association and disassociation with the network.
Innovation Solution
A home network controller device that counts the number of band steering occurrences within a predetermined time period and adjusts a signal parameter offset value (σ) to limit unnecessary steering, thereby reducing the frequency of band switches and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access point device frequently steers the client device between bands based on signal parameter comparisons, then the client device can maintain optimal signal quality, but the client device experiences constant disconnections and poor user experience
Solution Approach 1:
The system dynamically adjusts the offset value σ based on the counted number of steering occurrences n. When n exceeds threshold m, the offset σ is increased to reduce future steering events. This dynamic parameter adjustment resolves the contradiction by making the steering criterion adaptive rather than fixed, allowing the system to maintain connection stability while preserving the ability to steer when genuinely necessary.
Solution Approach 2:
The home network controller implements a feedback mechanism by counting steering occurrences n within a predetermined time period and using this count to adjust the offset value σ. This feedback loop prevents excessive steering by learning from past steering events, thereby improving connection stability while maintaining productive band steering when signal conditions genuinely warrant it.
2Reliability
If the access point device uses a small signal parameter offset value σ for band steering decisions, then band steering occurs more frequently to maintain optimal signal, but unnecessary steering increases causing repeated disconnections
Solution Approach 1:
The system changes the offset parameter σ dynamically based on the counted steering occurrences n. When unnecessary steering is detected (n > m), the offset σ is increased, which raises the threshold for triggering band steering. This parameter change resolves the contradiction by reducing measurement precision (higher threshold) when stability is compromised, while maintaining sensitivity when conditions allow.
Solution Approach 2:
The offset value σ transitions from a static parameter to a dynamic one that adapts based on steering history. This dynamic adjustment allows the system to balance between maintaining connection stability and responding to genuine signal quality changes, resolving the contradiction between reliability and measurement precision.
3Productivity
If the home network controller increases the offset value σ to reduce band steering frequency, then connection stability improves, but the ability to steer to optimal bands when needed decreases
Solution Approach 1:
The offset value σ is made dynamic rather than fixed, adjusting based on the counted steering occurrences n. When n ≤ m, the system maintains lower σ values allowing frequent steering when beneficial. When n > m, σ increases to reduce steering frequency and improve stability. This dynamic approach resolves the contradiction by allowing the system to adapt its steering aggressiveness based on real-time conditions.
Solution Approach 2:
The feedback mechanism monitors steering occurrences n and adjusts σ accordingly. This feedback ensures that the system maintains high steering frequency (good productivity) when connection stability is good (n ≤ m), and reduces steering frequency (improving reliability) when excessive steering is detected (n > m), thus resolving the contradiction between these two parameters.
Data Source
AI summary
An access point device associates with a client device on a first band and on a second band, the access point device can steer the client device from the first band to the second band or from the second band to the first band based on a signal parameter offset value. The access point device can determine a first signal parameter value associated with the client device on the first band and a second signal parameter value associated with association of the client device on the second band. A home network controller device is enabled to: count n number of times, within a predetermined time period, that the client device is steered from the first band to the second band and vice versa; and instruct the access point device to increase the signal parameter offset value when n is greater than a predetermined value, m.