Blockchain Publisher-Subscriber Network for IoT Data Consensus

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional cellular support for IoT networks is based on bearer type communications, which limits flexibility in data distribution among multiple devices and does not support the publisher-subscriber model, leading to inflexible and inefficient data sharing.

Innovation Solution

Implementing a publisher-subscriber network with a broker circuitry that facilitates a consensus-reaching process on published data using a blockchain, allowing flexible data distribution and decoupling of sender and receiver relationships.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If bearer type communications are used in conventional cellular networks, then security is provided by 3GPP nodes with centralized control, but flexibility in data distribution among multiple devices is limited

Engineering Contradiction:

Improveflexibility in data distributionVSAvoidnetwork architecture complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the network into independent publisher-subscriber units with their own data streams, allowing flexible data distribution without requiring complex centralized control. Each publisher-subscriber pair operates autonomously while maintaining security through individual authentication mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a blockchain as an intermediary layer between publishers and subscribers. This mediator enables decentralized data distribution while maintaining security through cryptographic hashing and consensus mechanisms, eliminating the need for complex centralized control infrastructure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional 3GPP network control is used, then security is maintained through centralized authentication, but the publisher-subscriber model with decoupled sender-receiver relationships is not supported

Engineering Contradiction:

Improvepublisher-subscriber model supportVSAvoiddata transmission reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements dynamic connections where publishers and subscribers can be added or removed from the network without affecting other connections. The blockchain-based architecture allows flexible association and disassociation of devices while maintaining reliable data transmission through cryptographic verification of each transaction.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent replaces the mechanical centralized authentication system with a cryptographic blockchain system. This substitution enables the publisher-subscriber model to function reliably through decentralized verification mechanisms, where data integrity is ensured through hash chains rather than centralized control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If centralized control is used in conventional cellular networks, then security is provided through network nodes, but data sharing efficiency among multiple devices is reduced

Engineering Contradiction:

Improvedata sharing efficiencyVSAvoidcontrol mechanism complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent enables publishers and subscribers to autonomously manage their own data streams and authentication. The blockchain system allows devices to self-verify and self-regulate data transmission, eliminating the need for complex centralized control mechanisms while improving data sharing efficiency through direct peer-to-peer communication.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent changes the fundamental parameters of network control from centralized to decentralized, transforming the security model from network-node based to cryptographic-based. This parameter change enables efficient data sharing by allowing direct authentication and verification between devices without requiring complex control mechanisms.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12477044B2Method and publisher-subscriber network

Publication Date: 2025.11.18 SONY GROUP CORP

AI summary

A method for reaching consensus on published data for a publisher-subscriber network, the publisher-subscriber network including a broker circuitry configured to provide a broker, a publisher device that is registered as a publisher for a data category at the broker, and a plurality of subscriber devices, wherein each of the plurality of subscriber devices is registered as a subscriber for the data category at the broker, wherein the publisher-subscriber network is configured to provide a blockchain, wherein the method includes: performing, by the publisher-subscriber network, a consensus reaching process on the published data for storing the published data in the blockchain.