IoT Repeater Signal Amplification Control for Noise Reduction

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Solution Overview

Problem

In IoT communication systems, repeaters generate noise that interferes with base stations and other terminal devices, especially when data is not being sent, leading to noise interference issues.

Innovation Solution

A signal processing method where a first device determines a time domain resource position for transmitting a signal and sends control signaling to a second device to enable or disable its signal amplification function only when necessary, reducing noise interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the repeater continuously amplifies signals, then coverage enhancement is achieved, but noise interference to the base station and other terminal devices increases

Engineering Contradiction:

Improvecoverage enhancementVSAvoidnoise interference

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The repeater performs signal amplification periodically rather than continuously. The control signal enables the amplification function only during specific time periods when data needs to be forwarded, and disables it during other periods. This periodic activation reduces noise interference while maintaining coverage enhancement capability when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The amplification function of the repeater is made dynamic rather than static. The control signal dynamically switches the amplification function between enabled and disabled states based on whether data forwarding is required. This dynamic control allows the system to adapt to changing communication needs and minimize noise interference.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the repeater amplification function is always enabled, then signal coverage is improved, but energy consumption increases

Engineering Contradiction:

Improvesignal coverageVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The amplification function is activated periodically only when necessary for data forwarding. The control signal enables amplification during specific time windows when coverage enhancement is needed, and disables it during other times. This periodic operation maintains signal coverage reliability while significantly reducing energy consumption compared to continuous operation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system discards the amplification function when it is not needed for data forwarding, and recovers it when needed. The control signal manages the activation and deactivation of amplification, allowing the repeater to conserve energy by disabling the function during periods when coverage enhancement is not required, while maintaining the capability to restore it when needed.

Inventive Principle:

Principle #34Discarding and recovering

Data Source

PatentUS12309850B2Signal amplification methods and devices in signal processing

Publication Date: 2025.05.20 HUAWEI TECH CO LTD

AI summary

A signal processing method, a device, and a system are provided, to reduce noise interference generated by a repeater. The method includes a first device that determines a first time domain resource position for transmitting a first signal and sends first control signaling to a second device at or before the start position of the first time domain resource position. The second device receives the first control signaling and enables a signal amplification function based on the received first control signaling.