Wireless Base Station Throughput Optimization via Dynamic Method Switching

Solution Overview

Problem

The throughput of wireless LAN base stations fluctuates significantly depending on the switching method, with low throughput when switched to WiMAX communication and increased throughput when switched to wireless LAN communication, necessitating an efficient method to optimize communication method switching for improved efficiency.

Innovation Solution

A wireless communication system with multiple base stations capable of switching between WiMAX and wireless LAN communication, equipped with a control apparatus that measures throughput and instructs switching and re-switching to optimize communication methods based on performance metrics, ensuring efficient data transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the wireless LAN base station switches to WiMAX communication, then the communication speed increases, but the throughput remains low when there are few MS present

Engineering Contradiction:

Improvecommunication speedVSAvoidthroughput

Core Design Contradiction:

SpeedVSProductivity

Solution Approach 1:

The base station dynamically switches between WiMAX and wireless LAN communication methods based on real-time throughput measurement and comparison with threshold values. The switching decision is made by the control apparatus which monitors throughput performance and instructs the base station to switch to the communication method that yields higher throughput, thereby adapting to varying network conditions and terminal densities

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements a feedback mechanism where the base station measures its own throughput and reports this information to the control apparatus. The control apparatus uses this feedback to determine whether to switch the base station between communication methods, creating a closed-loop control system that continuously optimizes throughput based on actual performance data

Inventive Principle:

Principle #23Feedback

2Productivity

If the wireless LAN base station switches to wireless LAN communication, then the throughput increases when there are many TE present, but the communication speed decreases

Engineering Contradiction:

ImprovethroughputVSAvoidcommunication speed

Core Design Contradiction:

ProductivityVSSpeed

Solution Approach 1:

The base station dynamically switches between WiMAX and wireless LAN communication methods based on real-time throughput measurement and comparison with threshold values. The switching decision is made by the control apparatus which monitors throughput performance and instructs the base station to switch to the communication method that yields higher throughput, thereby adapting to varying network conditions and terminal densities

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements a feedback mechanism where the base station measures its own throughput and reports this information to the control apparatus. The control apparatus uses this feedback to determine whether to switch the base station between communication methods, creating a closed-loop control system that continuously optimizes throughput based on actual performance data

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If the communication method switching is implemented without proper control, then the system can adapt to different communication methods, but the throughput fluctuates greatly

Engineering Contradiction:

Improvecommunication method switching capabilityVSAvoidthroughput stability

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The system implements a feedback mechanism where the base station measures its own throughput and reports this information to the control apparatus. The control apparatus uses this feedback to determine whether to switch the base station between communication methods, creating a closed-loop control system that continuously optimizes throughput based on actual performance data

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control apparatus performs preliminary actions by measuring throughput before switching occurs and using this information to predict the outcome of potential switches. The apparatus compares measured throughput against threshold values and historical data to determine the optimal switching timing, preventing throughput fluctuations by acting in advance rather than reactively

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8570891B2Wireless communication system, control apparatus, communication method switching method, and program

Publication Date: 2013.10.29 NEC CORP

AI summary

A wireless communication system includes a plurality of base stations that are capable of switching to either a first communication method or a second communication method and that carry out wireless communication with terminals by the switched communication method and a control apparatus that manages the plurality of base stations. The control apparatus includes an acquisition unit that acquires information of throughput of each of the plurality of base stations and a switching instruction unit that instructs switching of the current communication method to each of the plurality of base stations when there is a base station in which throughput drops within a fixed interval among the plurality of base stations, and that further instructs re-switching to the communication method that preceded switching to base stations in which throughput dropped from before to after switching communication method among the plurality of base stations.