Wireless AP Group Calibration via Path Loss Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for dividing wireless access points (APs) into calibration groups result in a high coupling degree between groups, leading to significant interference and a poor calibration effect in wireless local area networks (WLANs).
Innovation Solution
A group-based calibration method where a control device divides APs into calibration groups based on path loss data, selecting an AP with a light load as the management AP for each group to reduce coupling and improve calibration convergence speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If random grouping or manually planned grouping method is used to divide APs into calibration groups, then the grouping process is simple, but the coupling degree between calibration groups is large and interference is significant
Solution Approach 1:
The patent segments the calibration process by dividing APs into multiple calibration groups based on path loss data. Each group is calibrated independently with a designated leader AP, reducing the coupling degree between groups and minimizing interference. This segmentation transforms a single large calibration problem into multiple smaller, independent sub-problems.
Solution Approach 2:
The patent changes the grouping parameter from random or manual assignment to path loss-based assignment. By using path loss data as the grouping criterion, APs with similar propagation characteristics are grouped together, which reduces inter-group interference and improves calibration effectiveness while maintaining manageable group sizes.
2Ease of operation
If traditional grouping methods are used, then the calibration process is straightforward, but the calibration convergence speed is slow
Solution Approach 1:
The patent performs preliminary actions by collecting path loss data between APs before the actual calibration process. This pre-processing step enables intelligent grouping that accelerates convergence during calibration, while the overall process remains straightforward due to automated execution by the controller.
Solution Approach 2:
The patent introduces dynamic elements by selecting leader APs based on real-time load conditions and adjusting group compositions according to path loss characteristics. This dynamic approach enables faster convergence while maintaining operational simplicity through automated decision-making algorithms.
3Ease of manufacture
If APs with heavy load are selected as management APs, then the grouping is easy to implement, but the calibration convergence speed decreases
Solution Approach 1:
The patent changes the selection parameter for management APs from simple criteria (e.g., first available AP) to load-based criteria. By evaluating AP load conditions, the system selects management APs that can handle calibration tasks efficiently, thereby accelerating convergence while keeping the selection process automated and simple to implement.
Solution Approach 2:
The patent incorporates feedback mechanisms by monitoring AP load conditions and using this information to select appropriate management APs. This feedback loop ensures that calibration tasks are assigned to APs with sufficient capacity, improving convergence speed while maintaining implementation simplicity through automated feedback-based decision-making.
Data Source
AI summary
Embodiments of this application disclose a group-based calibration method and device. The method includes: A control device that obtains path loss data of a wireless access point AP set, where the AP set includes a plurality of APs, and the path loss data includes a path loss between any two of the plurality of APs. The control device obtains a first calibration group based on the path loss data, and sends first calibration information to a management AP of the first calibration group, where the management AP of the first calibration group is an AP that performs calibration management in the first calibration group. By implementing the foregoing method, the control device may divide a plurality of APs into a plurality of calibration groups based on path loss data between the APs, to decrease a coupling degree between the calibration groups.