Wireless Terminal Backscatter Mode Selection

Solution Overview

Problem

Existing wireless communication systems face challenges in determining the optimal transmission mode between active transmission and backscatter communication for zero power consumption terminals, especially when they support both modes.

Innovation Solution

A wireless communication method that determines the target transmission mode by calculating the path loss and target receiving power based on the transmitting power of a backscatter signal, switching between active transmission and backscatter modes accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a zero power consumption terminal uses backscatter communication mode, then power consumption is reduced, but transmission reliability deteriorates due to limited transmitting power

Engineering Contradiction:

Improvepower consumptionVSAvoidtransmission reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The terminal dynamically switches between backscatter communication mode and active transmission mode based on channel conditions, data priority, and power availability. The network device also dynamically adjusts receiving modes between backscatter receiving mode and active transmission receiving mode, enabling adaptive optimization of both power consumption and transmission reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the transmission mode parameter based on channel quality indicators, data priority levels, and power consumption requirements. By adjusting the mode parameter between backscatter and active transmission, the system optimizes the trade-off between power saving and transmission reliability.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If a zero power consumption terminal uses active transmission mode, then transmission reliability is improved, but power consumption increases

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The terminal dynamically switches between backscatter communication mode and active transmission mode based on channel conditions, data priority, and power availability. The network device also dynamically adjusts receiving modes between backscatter receiving mode and active transmission receiving mode, enabling adaptive optimization of both power consumption and transmission reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the transmission mode parameter based on channel quality indicators, data priority levels, and power consumption requirements. By adjusting the mode parameter between backscatter and active transmission, the system optimizes the trade-off between power saving and transmission reliability.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the network device supports both backscatter and active transmission receiving modes, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improvereceiving mode adaptabilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The network device is designed with multi-functional receiving capabilities, supporting both backscatter receiving mode and active transmission receiving mode. This universal design enables the device to handle different transmission modes from terminals, improving system flexibility and adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250126572A1Wireless communication method and device

Publication Date: 2025.04.17 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A wireless communication method includes: determining, by a first terminal based on transmitting power of a backscatter signal, a path loss between the first terminal and a target receiving device and target receiving power of the target receiving device, a target transmission mode of a first signal from multiple transmission modes, where the multiple transmission modes include an active transmission mode and a backscatter mode, and the target receiving device is a receiving device of the first signal.