Quantum Semantic Communication via Entangled Knowledge Graphs

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Solution Overview

Problem

Existing semantic communication technologies face limitations in resource efficiency and security, particularly in wireless applications, due to their reliance on classical communication methods and lack of flexibility in symbol transmission.

Innovation Solution

The integration of knowledge-graph based semantic communications with quantum communication, utilizing a quantum representation of knowledge graphs transmitted through entangled quantum subsystems, addresses the limitations by enhancing resource efficiency and security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If quantum communication is used to transmit semantic information, then security against eavesdropping is improved, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses quantum entanglement as an intermediary mechanism to transmit semantic information. Entangled quantum subsystems serve as mediators that carry information between transmitter and receiver without direct interaction, providing intrinsic security through quantum properties while managing complexity through the natural physics of entanglement

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces classical communication mechanisms with quantum mechanical processes. Instead of using classical signals and protocols, the system uses quantum entanglement and measurement to transmit and reconstruct semantic information, leveraging fundamental quantum properties for security and efficiency

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Quantity of substance

If knowledge graphs are transmitted using classical methods, then transmission resources are consumed, but security is compromised

Engineering Contradiction:

Improvetransmission resourcesVSAvoidsecurity

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent changes the fundamental parameter of information representation from classical bits to quantum states. Knowledge graphs are encoded into quantum entangled states, transforming the physical basis of information storage and transmission. This parameter change enables both resource efficiency through quantum compression and security through quantum properties

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite information system that integrates knowledge graph structures with quantum entanglement. The semantic meaning from knowledge graphs is combined with quantum mechanical properties, forming a hybrid system that leverages both classical semantic understanding and quantum security properties

Inventive Principle:

Principle #40Composite materials

3Device complexity

If fixed number of semantic symbols are transmitted, then transmission protocol is simplified, but flexibility is reduced

Engineering Contradiction:

Improvetransmission protocolVSAvoidflexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic adaptability into the transmission protocol through quantum measurement. The number and type of quantum subsystems transmitted can be dynamically adjusted based on the complexity of the knowledge graph and channel conditions. The measurement process at the receiver dynamically determines how much information is extracted, providing flexibility without complex protocols

Inventive Principle:

Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables more efficient use of transmission resources and provides intrinsic security against eavesdropping, while allowing for flexible and effective transmission of semantic information.

Implementation Method 1

generating a quantum representation of the knowledge graph comprising a plurality of entangled quantum subsystems, wherein each quantum subsystem represents a node of the knowledge graph and an entanglement relationship between two said quantum subsystems represents an edge

Methodology Applied

Scientific EffectQuantum entanglement:

Implementation Method 2

transmitting entanglement relationships of said quantum representation of the knowledge graph to a receive station through a quantum channel

Methodology Applied

Scientific EffectQuantum communication:

Implementation Method 3

mapping said entanglement relationship into a knowledge graph comprising nodes representing concepts and edges connecting nodes and representing semantic relationships

Methodology Applied

Scientific EffectQuantum measurement:

Data Source

PatentEP4517602A1Method and system for performing semantic communication

Publication Date: 2025.03.05 COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

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AI summary

A method of transmitting semantic information, comprising the following steps carried out at a transmit station: I. generating a knowledge graph; II. generating a quantum representation of the knowledge graph comprising a plurality of entangled quantum subsystems; and III. transmitting entanglement relationships of said quantum representation of the knowledge graph to a receive station through a quantum channel. A method for receiving semantic information, comprising the following steps carried out at a receiving station: i. receiving from a quantum channel a plurality of entanglement relationships between quantum subsystems of the receive station; and ii. mapping said entanglement relationship into a knowledge graph. Apparatuses for carrying out said methods