WLAN Transmission Rate Control via Application Layer Bandwidth

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Solution Overview

Problem

Current methods for controlling transmission rates in WLAN devices often result in unstable and resource-intensive fluctuations, particularly due to repeated attempts to adjust data transmission rates based on physical layer conditions, leading to unnecessary resource waste and high error rates.

Innovation Solution

A method that calculates the bandwidth requirement at the application layer and adjusts the data transmission rate accordingly, stabilizing the transmission rate and optimizing resource usage by setting it directly to meet the required bandwidth, thereby reducing unnecessary fluctuations and resource consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the WLAN device repeatedly adjusts data transmission rate based on physical layer conditions, then the transmission rate can adapt to channel changes, but resource waste and error rates increase

Engineering Contradiction:

Improvetransmission rate adaptationVSAvoidresource consumption

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent calculates the bandwidth requirement in advance at the application layer before actual data transmission occurs. By determining the required transmission rate beforehand based on the application's bandwidth needs, the system avoids repeated adjustments during transmission, thereby reducing resource waste and error rates while maintaining adaptability to different application requirements.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the WLAN device uses high transmission rates, then data transmission efficiency improves, but resource waste and error rates increase

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoiderror rate

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent dynamically adjusts the transmission rate parameter based on the calculated bandwidth requirement. Instead of using fixed high transmission rates, the system changes the transmission rate parameter to match the actual application needs, achieving optimal balance between transmission efficiency and reliability by avoiding unnecessarily high rates that would increase error rates and resource waste.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the WLAN device adjusts transmission rate frequently, then the system responds to changing conditions, but stability decreases

Engineering Contradiction:

Improveresponse to conditionsVSAvoidtransmission rate stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent performs bandwidth requirement calculation and transmission rate determination in advance at the application layer, before the actual data transmission begins. This preliminary action establishes a stable transmission rate for the entire transmission process, eliminating frequent adjustments during transmission while still adapting to different application requirements, thus maintaining both stability and adaptability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10237776B2Method for controlling transmission rate and WLAN device using the same

Publication Date: 2019.03.19 SERCOMM CORP

AI summary

A method for controlling transmission rate and a wireless local area network (WLAN) device are provided. The method for controlling transmission rate includes the following steps. Calculate a bandwidth requirement of the WLAN device according to a network application service provided by the WLAN device in an application layer. Determine a WLAN data transmission rate of the WLAN device in a physical layer according to the bandwidth requirement.