Wireless Station Power Control via Environment Feedback

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Solution Overview

Problem

In crowded wireless LAN environments, the existing methods for selecting operation frequency bands and channels for wireless base stations are not standardized, leading to suboptimal parameter settings, particularly in systems with multiple wireless stations, resulting in reduced user quality and interference among wireless modules.

Innovation Solution

A wireless communication system where wireless stations notify a control device of environment information, allowing the control device to calculate and set optimal transmission power values for each wireless module based on predefined guidelines, ensuring appropriate frequency band usage and minimizing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple wireless modules operate in a shared frequency band without standardized parameter settings, then device complexity and adaptability are improved, but interference among modules increases and user quality deteriorates

Engineering Contradiction:

Improvemultiple wireless modules operationVSAvoidinterference among wireless modules

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting transmission power values based on environment information. The control device calculates optimal transmission power for each wireless module according to predefined guidelines that consider the number of modules, frequency band, and channel conditions. This standardized parameter setting reduces interference while maintaining adaptability across different deployment scenarios.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback mechanisms where wireless stations notify the control device of environment information including capacity information and surrounding wireless environment data. The control device uses this feedback to calculate and adjust transmission power values, creating a closed-loop system that continuously optimizes performance and minimizes interference in crowded wireless LAN environments.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If transmission power values are not optimized in crowded wireless environments, then ease of operation is improved, but throughput and area cover ratio deteriorate

Engineering Contradiction:

Improveautomatic parameter settingVSAvoidthroughput

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent implements self-service through automated transmission power optimization. The control device automatically calculates and sets optimal transmission power values for each wireless module based on environment information without requiring manual configuration. This self-service approach maintains ease of operation while significantly improving throughput and area cover ratio through standardized optimal parameter settings.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent optimizes throughput by dynamically changing transmission power parameters based on environment information. The control device calculates optimal power values considering the number of wireless modules, frequency band (2.4 GHz or 5 GHz), and channel conditions, thereby maximizing productivity in crowded wireless LAN environments without manual intervention.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If standardized control guidelines are implemented for transmission power settings, then manufacturing precision and reliability are improved, but device complexity increases

Engineering Contradiction:

Improvetransmission qualityVSAvoidcontrol system structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a control device as an intermediary that centralizes the complexity of transmission power optimization. Rather than embedding complex control logic in each wireless station, the control device acts as a mediator that receives environment information, calculates optimal parameters according to standardized guidelines, and distributes settings to multiple wireless modules. This approach improves reliability through standardized control while managing device complexity through centralized architecture.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11818670B2Wireless communication system, wireless communication method, and wireless station device

Publication Date: 2023.11.14 NIPPON TELEGRAPH & TELEPHONE CORP

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 transmission power values in the plurality of wireless modules, the wireless stations being notified of the transmission power values by the control device, and the control device includes means for calculating a transmission power value 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 transmission power values.