Wireless Terminal Load Balancing via Access Point CPU Utilization
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Solution Overview
Problem
Conventional wireless network systems experience load imbalance due to the conventional connection establishment method based on RF signal intensity, leading to overloading of certain access points and resulting in slow and unstable network connections.
Innovation Solution
A distributed load balancing mechanism where wireless terminal devices periodically obtain and rank the load states of nearby access points based on CPU utilization rates, bandwidth, and connected devices, allowing them to select and connect to access points with lower loads, and access points can activate or deactivate this mechanism based on their load states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminal devices connect to AP devices based on RF signal intensity, then connection establishment is simple, but load balance deteriorates
Solution Approach 1:
The system performs preliminary load assessment by broadcasting load state information from AP devices before terminal devices make connection decisions. Terminal devices obtain and compare load states of multiple AP devices in advance, then select the most appropriate AP based on both signal strength and current load conditions, preventing overload before it occurs.
Solution Approach 2:
AP devices continuously broadcast their load state information (such as current number of connected terminals, CPU utilization) to terminal devices. Terminal devices use this feedback information to dynamically adjust their connection choices, selecting AP devices that currently have lower load, thereby achieving load balancing across the network.
2Speed
If terminal devices select AP devices based on signal intensity, then connection process is fast, but network stability deteriorates
Solution Approach 1:
The system pre-collects load state information from multiple AP devices through broadcast messages before the terminal device makes its connection decision. This preliminary gathering of information allows the terminal to quickly evaluate multiple options and select the optimal AP without extensive negotiation or retransmission, maintaining fast connection establishment while ensuring network stability through informed selection.
3Ease of operation
If all terminal devices connect to the nearest AP device, then connection establishment is straightforward, but bandwidth utilization deteriorates
Solution Approach 1:
AP devices broadcast their current load state information including bandwidth utilization metrics. Terminal devices use this feedback to distribute connections across multiple AP devices based on their current capacity and load conditions, preventing any single AP from becoming a bottleneck and improving overall network bandwidth utilization efficiency.
Data Source
AI summary
A wireless network system and a wireless access point (AP) device and a wireless terminal device thereof are provided. The wireless network system includes at least a wireless AP device and at least a wireless terminal device. Each wireless AP device broadcasts a beacon including a load state content of the wireless AP device. Each wireless terminal device receives beacons of all wireless AP devices, and ranks load states of all wireless AP devices in a load list according to at least CPU utilization rates in the load state contents of all wireless AP devices respectively. When a wireless terminal device intends to establish a connection with one of the wireless AP devices, the wireless terminal devices searches through the load list to select a wireless AP device being in a low load state, and transmits a connection request message to the selected wireless AP device.