Network Access Point Load Control via Signal Thresholds
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Solution Overview
Problem
Wireless local area networks (WLANs) like WiFi networks face challenges in guaranteeing communication quality due to limited access control, leading to reduced spectral efficiency as terminals with low signal strength or high fluctuation are allowed to access the network, affecting overall network performance.
Innovation Solution
A network device sets access conditions based on signal strength and fluctuation parameters of terminals, allowing access only when these parameters meet specific thresholds, thereby optimizing network load and improving spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If access control is relaxed to allow more terminals to connect to the WiFi network, then network coverage and accessibility are improved, but spectral efficiency and communication quality deteriorate due to low signal strength and high fluctuation
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the access threshold parameter based on network conditions. When signal strength is strong and fluctuation is low, the threshold is lowered to allow more terminals to access (improving accessibility). When signal strength is weak or fluctuation is high, the threshold is raised to deny access (maintaining communication quality). This dynamic parameter adjustment resolves the contradiction between network accessibility and communication quality.
2Area of stationary object
If terminals with low signal strength are allowed to access the network, then network coverage area is expanded, but overall spectral efficiency decreases due to poor communication quality
Solution Approach 1:
The patent uses parameter changes by setting and adjusting the access threshold based on signal strength measurements. Terminals with low signal strength (below the threshold) are denied access, preventing degradation of spectral efficiency. The threshold parameter is dynamically adjusted to balance coverage area expansion with maintaining high spectral efficiency, resolving the contradiction between these two objectives.
3Device complexity
If access control is simplified without signal strength verification, then device complexity is reduced, but communication quality and spectral efficiency worsen
Solution Approach 1:
The patent applies self-service by having terminals automatically measure their own signal strength and compare it against the access threshold. The terminal itself determines whether it meets the access conditions without requiring complex centralized control. This self-service approach maintains simple device architecture while ensuring communication quality through automated signal strength verification.
4Stability of the object's composition
If maximum load control is implemented to prevent network overload, then network stability is improved, but spectral efficiency decreases when current load is below maximum load but signal strength is low
Solution Approach 1:
The patent resolves this contradiction by introducing a dual-parameter control system that combines load control with signal strength control. Instead of relying solely on maximum load thresholds, the system dynamically adjusts the access threshold based on signal strength and fluctuation measurements. This allows the network to maintain stability through load management while simultaneously preserving spectral efficiency by denying access to terminals with poor signal conditions, even when load capacity is available.
Data Source
AI summary
The present invention provides a network access point, a network controller, a network device, and a load control method thereof. The load control method includes: setting, by a network device, an access condition for accessing a first network by a terminal; receiving, by the network device, a first signal from the terminal, and obtaining a measurement parameter of the terminal according to the first signal; and if the measurement parameter of the terminal satisfies the access condition, sending, by the network device, a second signal to the terminal, so as to allow the terminal to access the first network, wherein the measurement parameter is a signal strength of the terminal and/or a terminal distance of the terminal. By using the foregoing manner, the present invention can improve spectral efficiency of a network access point.