Dedicated Frequency Channel for WiFi Probe Traffic

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Solution Overview

Problem

The increasing number of users in WiFi networks leads to control frequency channel traffic congestion, reducing data bandwidth due to the surge in probe request and probe response frames, which affects user satisfaction and network efficiency.

Innovation Solution

Dedicating a separate frequency channel for probe request and probe response frames, allowing these frames to be transmitted and received on a specific channel distinct from data frames, thereby freeing up bandwidth on data channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If probe request frames and probe response frames are transmitted on the same frequency channel as data frames, then the control channel traffic increases due to multiple users attempting to connect simultaneously, but this reduces the data bandwidth available to users

Engineering Contradiction:
Improveconnection establishmentVSAvoiddata bandwidth
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent divides the frequency channel into separate dedicated channels: one for control traffic (probe request/response frames) and another for data traffic. This segmentation allows control and data transmissions to occur simultaneously on different frequency channels, eliminating the congestion that occurs when both types of traffic share the same channel.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple users attempt to connect simultaneously through WiFi Access Points, then the number of probe request frames and probe response frames increases, but this control traffic surge reduces data traffic bandwidth

Engineering Contradiction:
Improveuser connection capacityVSAvoiddata bandwidth
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent segments the wireless communication spectrum into distinct frequency channels dedicated to different traffic types. Control traffic from multiple users is confined to a dedicated control channel, while data traffic utilizes separate data channels. This allows the system to accommodate multiple simultaneous connections without compromising data bandwidth.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a dedicated control frequency channel as an intermediary that handles all probe request and probe response traffic. This intermediary channel acts as a buffer that absorbs control traffic surges, preventing them from interfering with data traffic on other channels.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If a single frequency channel is used for both control frames and data frames, then the system structure remains simple, but control traffic congestion reduces network efficiency

Engineering Contradiction:
Improvefrequency channel allocationVSAvoidnetwork efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements segmentation of frequency channels into control-specific and data-specific channels. While this increases system complexity compared to a single shared channel, it dramatically improves network efficiency by eliminating control traffic congestion and enabling simultaneous control and data transmissions without interference.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10433304B2Method of dedicating frequency channel for probing or for data
Publication Date: 2019.10.01 SAMSUNG ELECTRONICS CO LTD
  • US10433304B2 patent drawing
  • US10433304B2 patent drawing
  • US10433304B2 patent drawing

AI summary

A method is presented for dedicating and allocating frequency channels to control and data frames in a WiFi local area network system. The method comprising dedicating a frequency channel in a frequency band, determining by a station the dedicated frequency channel, transmitting by the station a probe request frame in the dedicated frequency channel, receiving by the station a probe response frame in the dedicated frequency channel.