Wireless LAN Access Point Channel Optimization

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Solution Overview

Problem

Current wireless LAN systems face challenges in optimizing channel selection and parameter settings across access points from different manufacturers and models, leading to interference and reduced throughput, especially in densely populated environments where access points aggregate.

Innovation Solution

A wireless communication system that includes a management engine with a database to collect and analyze attribute information from various access points, determining optimal channel and parameter settings based on wireless environment data to improve frequency utilization efficiency and prevent throughput degradation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple access points from different manufacturers are deployed in dense environments, then network coverage is improved, but interference increases and throughput decreases

Engineering Contradiction:

Improvenetwork coverage areaVSAvoidinterference between access points

Core Design Contradiction:

Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The system dynamically changes operational parameters (channel assignments, transmission power levels) of access points based on real-time environmental conditions and interference measurements, allowing the network to adapt to dense deployments while minimizing interference between access points from different manufacturers

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system implements a feedback mechanism where access points measure interference levels and transmit this information to a management entity, which then adjusts channel and power parameters accordingly, creating a closed-loop control system that continuously optimizes performance in dense environments

Inventive Principle:

Principle #23Feedback

2Device complexity

If autonomous parameter setting is used in each access point, then device complexity is reduced, but frequency utilization efficiency decreases

Engineering Contradiction:

Improveaccess point configuration complexityVSAvoidfrequency utilization efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The system introduces a management entity as an intermediary that collects interference measurement data from multiple access points and calculates optimal channel assignments, thereby distributing the computational complexity to a centralized entity while maintaining simple autonomous operation at each access point

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments the parameter optimization function into two parts: local interference measurement performed autonomously by each access point, and global channel assignment optimization performed by the management entity, allowing both simplicity and efficiency to coexist

Inventive Principle:

Principle #1Segmentation

3Productivity

If manual parameter optimization is performed, then frequency utilization efficiency is improved, but ease of operation deteriorates

Engineering Contradiction:

Improvefrequency utilization efficiencyVSAvoidparameter setting ease

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system enables access points to autonomously measure interference levels and transmit this data to the management entity, which automatically calculates and distributes optimal parameter settings, eliminating the need for manual optimization while maintaining high frequency utilization efficiency

Inventive Principle:

Principle #25Self-service

4Speed

If channel bandwidth is increased to提高 transmission rate, then speed is improved, but the number of available channels decreases

Engineering Contradiction:

Improvetransmission rateVSAvoidnumber of available channels

Core Design Contradiction:

SpeedVSAdaptability or versatility

Solution Approach 1:

The system dynamically selects channel bandwidth (20 MHz or 40 MHz) based on the deployment environment and interference conditions, allowing access points to use wider bandwidths when available channels are scarce but maintaining adaptability to switch to narrower bandwidths when channel availability is high

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP2905983B1Wireless communication device, wireless communication system, and wireless communication method

Publication Date: 2018.07.18 NIPPON TELEGRAPH & TELEPHONE CORP

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AI summary

A wireless communication apparatus is provided that is capable of performing setting of a wireless LAN access point so that frequency utilization efficiency of an entire wireless communication system that includes wireless LAN access points of different manufacturers and different model numbers is improved. A wireless communication system which performs setting necessary for a wireless LAN access point constituting a wireless communication network to operate includes: an information collection unit which collects setting information set in the wireless LAN access point and wireless environment information in the wireless LAN access point, a parameter calculation unit which obtains a parameter to be set for the wireless LAN access point, which is a collection source, based on the collected setting information and the collected wireless environment information, and a parameter setting unit which transmits the obtained parameter to the wireless LAN access point, which is a collection source, over a network and performs setting of the parameter.