Ambient Backscatter Core Network Module for Low-Power IoT Links

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Solution Overview

Problem

Existing communication systems fail to support the functions of ambient Internet of Things, particularly in harsh environments, requiring low power consumption and cost-effective communication solutions.

Innovation Solution

A transmission method for ambient backscatter is implemented using an ambient backscatter function module in the core network to transmit information related to the ambient backscatter service, supporting functions such as data packet generation, decoding, authentication, encryption, and connection management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If traditional communication methods are used in IoT systems, then communication reliability is maintained, but power consumption increases and cost-effectiveness decreases

Engineering Contradiction:
Improvepower consumptionVSAvoidcommunication reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The backscatter communication system enables IoT devices to communicate by reflecting ambient RF signals rather than generating their own signals. The tag passive modulates the reflected signal to carry data, eliminating the need for power-consuming transmitters and making the devices self-powered through harvested energy alone

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces traditional active electronic communication systems with passive backscatter modulation. Instead of using active transmitters and power amplifiers, the system uses passive reflection and modulation of ambient RF signals, fundamentally changing the communication mechanism from active to passive operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If ambient backscatter function module is added to core network, then support for ambient IoT functions is enabled, but device complexity increases

Engineering Contradiction:
Improveambient IoT supportVSAvoidnetwork module complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ambient backscatter function module is designed to provide multiple functions including data packet generation, decoding, authentication, encryption, and connection management within a single integrated component. This multi-functional design enables comprehensive ambient IoT support without proportionally increasing complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The ambient backscatter function module acts as an intermediary between the core network and passive backscatter tags. It handles all complex processing tasks including signal generation, authentication, and data management, allowing simple passive tags to communicate effectively without requiring complex onboard processing

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20260039716A1Transmission method for ambient backscatter, communication apparatus, and storage medium
Publication Date: 2026.02.05 ZTE CORP
  • US20260039716A1 patent drawing
  • US20260039716A1 patent drawing
  • US20260039716A1 patent drawing

AI summary

Provided are a transmission method for ambient backscatter, a communication apparatus, and a storage medium. The transmission method comprises: an ambient backscatter function module in a core network transmits information related to an ambient backscatter service.