WLAN Access Point Management Frame Control for Traffic Reduction

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Solution Overview

Problem

The increasing number of WLAN devices in limited spaces leads to inefficient use of wireless resources due to collisions and a high percentage of management frames, resulting in wasted wireless resources.

Innovation Solution

An access point (AP) with a management frame control unit that adjusts the period of beacon frames and the number of retransmissions of probe response frames based on power consumption, system load, and emergency levels, including priority control and system policy determination, to optimize resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If management frames are transmitted frequently to maintain network management, then network management quality is improved, but wireless resource waste increases

Engineering Contradiction:

Improvenetwork management qualityVSAvoidwireless resource waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies dynamics by making the beacon frame transmission period adjustable rather than fixed. The management frame control unit dynamically modifies the beacon frame period based on real-time system conditions including power consumption levels, system load, and emergency status, allowing the system to adapt transmission frequency to actual needs and reduce unnecessary transmissions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of beacon frame transmission period from a static value to a dynamically adjustable parameter. By modifying this parameter based on system conditions (power consumption, load, emergency level), the system optimizes the balance between management quality and resource consumption

Inventive Principle:

Principle #35Parameter changes

2Productivity

If beacon frame transmission period is reduced to improve network monitoring, then network monitoring efficiency is improved, but wireless traffic increases

Engineering Contradiction:

Improvenetwork monitoring efficiencyVSAvoidwireless traffic

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The system dynamically adjusts the beacon frame period based on actual network conditions. When system load is high or during emergencies, the period is reduced to improve monitoring efficiency. When conditions are stable, the period is increased to reduce wireless traffic, achieving optimal balance at different times

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The management frame control unit continuously monitors system conditions (power consumption, system load, emergency level) and uses this feedback to adjust the beacon frame period. This closed-loop control ensures the beacon period is optimized based on real-time network state

Inventive Principle:

Principle #23Feedback

3Reliability

If probe response frame retransmissions are increased to improve communication reliability, then communication reliability is improved, but wireless resource consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidwireless resource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent changes the retransmission count parameter from a fixed value to a dynamically adjustable parameter. The management frame control unit modifies the probe response frame retransmission count based on system conditions, allowing optimization of the balance between communication reliability and resource consumption

Inventive Principle:

Principle #35Parameter changes

4Adaptability or versatility

If the number of WLAN devices is increased to provide better service coverage, then service coverage is improved, but wireless resource efficiency deteriorates due to collisions

Engineering Contradiction:

Improveservice coverageVSAvoidwireless resource efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The system dynamically adjusts management frame transmission parameters based on the number of connected devices and system load. As more devices connect, the system optimizes beacon period and retransmission counts to maintain efficient resource usage while supporting expanded service coverage

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS9503977B2Method and apparatus for reducing wireless traffic by controlling management frame in wireless local area network (WLAN)

Publication Date: 2016.11.22 ELECTRONICS & TELECOMM RES INST

AI summary

Provided is a method and apparatus for reducing wireless traffic by controlling a management frame of an access point (AP) in a wireless local area network (WLAN), the AP including a beacon frame generator to generate a beacon frame, a probe response generator to generate a probe response frame, and a management frame control unit to control at least one of a period of the beacon frame and a number of retransmissions of the probe response frame, based on at least one of a power consumption of the AP, a system load imposed on a system including the AP, and an emergency level related to whether an emergency occurs.