Wireless Channel Allocation via Weighted RSSI Monitoring

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Solution Overview

Problem

Conventional methods for allocating communication channels in wireless local access networks (WLANs) are either uneconomical and require constant manual adjustment or lack flexibility, failing to adapt to changing network conditions, leading to inefficiencies and interference among access points.

Innovation Solution

A method and device that utilize a Network Management Server to collect and calculate channel status information, including Received Signal Strength Incident (RSSI), to automatically allocate channels, switching to channels with lower weighted RSSI values to improve network efficiency and reduce interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual channel allocation is used, then channel control precision is improved, but labor cost increases and continuous adjustment is difficult

Engineering Contradiction:
Improvechannel control precisionVSAvoidtime for continuous adjustment
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system enables access points to automatically detect channel status information and calculate optimal channels independently, eliminating the need for manual continuous adjustment by network administrators while maintaining precise channel control

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors channel status information including RSSI values, automatically detects changes in network conditions, and dynamically adjusts channel allocations based on real-time feedback, enabling continuous optimization without manual intervention

Inventive Principle:
Principle #23Feedback

2Ease of operation

If independent automatic channel allocation by each access point is used, then management convenience is improved, but operation flexibility deteriorates and optimization is limited

Engineering Contradiction:
Improvemanagement convenienceVSAvoidoperation flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system introduces a Network Management Server as an intermediary that collects channel status information from all access points, performs centralized calculations to determine optimal channels, and distributes allocation decisions, thereby maintaining management flexibility while preserving ease of operation

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system combines the advantages of both manual and independent automatic allocation by merging centralized control capabilities with automated execution, allowing flexible policy configuration while maintaining operational convenience

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If conventional automatic channel allocation is used, then management convenience is improved, but response to network status changes deteriorates

Engineering Contradiction:
Improvemanagement convenienceVSAvoidresponse speed to network changes
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The system continuously monitors channel status information including RSSI values and actively triggers channel reallocation when network conditions change, ensuring uninterrupted optimization response rather than periodic or manual updates

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS7792076B2Method and device for automatically allocating channels of wireless network system
Publication Date: 2010.09.07 CAMEO COMM
  • US7792076B2 patent drawing
  • US7792076B2 patent drawing
  • US7792076B2 patent drawing

AI summary

A method for automatically allocating channels of a wireless network system comprises the steps of: actuating one of access points (APs) for collecting channel status information, such as channel numerals and Received Signal Strength Incident (RSSI), of the other of the access points near by that access point; calculating an accumulated RSSI value of each of the access points according to the collected channel numerals and the RSSI value via a Network Management Server (NMS); calculating the accumulated RSSI value of each of the access points by weighting to obtain a weighted RSSI value thereof; and switching an operation channel of the actuated access point into the better channel having a relatively lower weighted RSSI value for improving the overall efficiency of the wireless network system. Furthermore, the method for automatically allocating channels can be used to periodically monitor the channel status of the channel corresponding to each of the access points, so as to actively fine-adjust the channel of that access point or to change a monitor period.