Wireless Station Frequency Channel Allocation via Centralized Control
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Solution Overview
Problem
In crowded wireless LAN environments, the existing IEEE 802.11 standards lack defined methods for selecting operation frequency bands and channels, leading to suboptimal parameter settings by wireless stations, resulting in reduced throughput and interference among multiple wireless modules.
Innovation Solution
A wireless communication system where wireless stations share environment information with a control device to calculate and set optimal frequency channels for each module, following predetermined guidelines, ensuring minimal interference and maximizing throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless stations autonomously select frequency channels without centralized control, then device complexity is reduced and ease of operation is improved, but throughput decreases and interference increases in crowded environments
Solution Approach 1:
A control device acts as an intermediary between wireless stations and the frequency channel allocation process. The control device receives environment information from wireless stations, calculates optimal frequency channels based on predetermined guidelines, and notifies the stations of the assigned channels. This centralized coordination mechanism resolves the contradiction by improving throughput through optimized channel selection while managing the complexity centrally rather than requiring complex autonomous decision-making at each station.
2Adaptability or versatility
If multiple wireless modules operate in the same frequency band without coordinated channel assignment, then device versatility is improved, but harmful interference among modules increases
Solution Approach 1:
The control device serves as a mediator that coordinates frequency channel assignment among multiple wireless modules. By receiving environment information from each module and calculating optimal channels based on predetermined guidelines, the control device ensures that modules operating in the same frequency band are assigned non-interfering channels, thus maintaining versatility while eliminating harmful interference.
Solution Approach 2:
Each wireless module is assigned a specific frequency channel tailored to its local environment and operational characteristics. The control device calculates optimal channels based on environment information specific to each module, ensuring that each module operates on the most suitable channel for its location and conditions, thereby preventing interference while maintaining adaptability.
3Productivity
If wireless stations use default or manually set channel parameters, then ease of operation is improved, but system throughput is reduced due to suboptimal parameter settings
Solution Approach 1:
The system enables wireless stations to automatically receive and apply optimized frequency channel assignments from the control device. The stations notify the control device of their environment information and then automatically set the assigned parameters without requiring manual configuration. This self-service approach improves system throughput through optimized parameters while maintaining ease of operation by eliminating the need for users to manually tune complex channel settings.
Data Source
AI summary
A wireless communication system in which wireless stations perform transmission, a plurality of wireless modules that are operated in a shared frequency band being installed in the wireless stations, wherein the wireless stations each include means for notifying a control device of environment information that includes capacity information regarding the wireless station and information regarding a surrounding wireless environment, and setting frequency channels in the plurality of wireless modules, the wireless stations being notified of the frequency channels by the control device, and the control device includes means for calculating a frequency channel of each wireless module of each wireless station based on the environment information collected from each wireless station, following a control guideline that is determined in advance, and notifying the wireless stations of the frequency channels.