Wireless Gateway Beacon Channel for IoT Network Saturation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current wireless communication protocols in radiofrequency networks face issues such as network saturation, suboptimal time and frequency usage, limited connectivity, and energy consumption due to synchronization requirements, especially when dealing with a large number of connected objects and gateways.

Innovation Solution

The implementation of a communication method using a reserved beacon channel for periodic or quasi-periodic transmission of beacon messages by gateways, which includes a preamble and indications of message availability and exchange channels, allowing connected objects to select a gateway and transmit messages at any time, reducing collisions, and enabling flexible gateway addition without external intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the periodic signal is subdivided into time windows and time subwindows for communication, then communication organization is improved, but communication delays increase

Engineering Contradiction:

Improvecommunication organizationVSAvoidcommunication delays

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent segments the communication protocol into distinct phases: beacon signal transmission phase, connection request phase, and data transmission phase. This segmentation allows connected objects to transmit data immediately after connection without waiting for periodic time windows, reducing communication delays while maintaining organized communication through structured protocol phases.

Inventive Principle:

Principle #1Segmentation

2Quantity of substance

If the number of gateways is increased to serve more connected objects, then network capacity is improved, but periodic signal duration increases extending communication delays

Engineering Contradiction:

Improvenetwork capacityVSAvoidcommunication delays

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

The patent introduces frequency diversity by allowing connected objects to transmit data requests and receive responses on different frequencies than the beacon signal. This dimensional change in frequency usage enables parallel communications without extending the periodic signal duration, allowing increased gateway capacity without proportionally increasing delays.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Speed

If the number of timeslots assigned by gateway is limited to keep periodic signal duration short, then communication speed is improved, but network saturation risk increases

Engineering Contradiction:

Improvecommunication speedVSAvoidnetwork saturation risk

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent enables continuous data transmission by allowing connected objects to send data immediately after connection establishment without waiting for periodic timeslot assignments. The gateway can handle multiple connection requests and data transmissions in parallel across different frequencies, eliminating the need to limit timeslot numbers and preventing network saturation while maintaining high communication speed.

Inventive Principle:

Principle #20Continuity of useful action

4Reliability

If connected objects perform synchronization regularly to communicate in their time slot, then communication reliability is improved, but energy consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements self-service synchronization where connected objects automatically synchronize with the beacon signal transmitted by the gateway. The beacon signal contains timing information that enables objects to align their communication without requiring complex periodic resynchronization protocols, reducing energy consumption while maintaining communication reliability through automatic timing alignment.

Inventive Principle:

Principle #25Self-service

5Ease of operation

If the periodic signal structure is used for communication, then communication organization is improved, but frequency usage optimization is reduced

Engineering Contradiction:

Improvecommunication organizationVSAvoidfrequency usage optimization

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent utilizes frequency diversity by assigning different frequencies to beacon signals, connection requests, and data transmissions. This dimensional change in frequency usage allows simultaneous communications on multiple frequencies without interfering with the periodic beacon structure, optimizing frequency usage while maintaining organized communication through the structured protocol phases.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11291056B2Method and device for wireless communication between connected objects and gateways

Publication Date: 2022.03.29 CROHAS HENRI

AI summary

Methods of communication in a wireless communication network having a plurality of connected objects, a gateway and a central server. These elements communicate with one another via messages sent and received on frequency channels. A channel is reserved for the periodic transmission of tag messages by the gateways, thereby allowing the organization and optimization of the network usage and communication time.