Waveform-Classifying Repeater for Signal-Specific Retransmission

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Solution Overview

Problem

Conventional repeaters lack the ability to differentiate between various types of wireless communication waveforms, leading to diminished signal quality during retransmission, as they process all signals uniformly without applying specific signal processing algorithms that could enhance power efficiency and link quality.

Innovation Solution

A repeater equipped with a signal analysis and classification block that identifies the waveform type of incoming signals, allowing for tailored pre-processing through parametric inputs such as crest factor reduction and digital pre-distortion specific to each waveform type, thereby enhancing the quality of retransmitted signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional repeaters process all incoming signals uniformly without waveform differentiation, then device complexity is reduced and ease of operation is improved, but signal quality and communication link robustness are significantly diminished

Engineering Contradiction:
Improvecommunication link qualityVSAvoidsignal processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The repeater system segments the signal processing task by first classifying the waveform type and then applying specific processing algorithms tailored to each waveform category. This segmentation allows the system to achieve high signal quality for different waveform types without requiring a single overly complex processing pipeline that handles all waveforms uniformly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary waveform classification and categorization before applying the main signal processing operations. By identifying the waveform type in advance, the repeater can select and apply the most appropriate processing algorithms, thereby improving communication link quality while maintaining manageable device complexity through organized pre-processing.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If waveform-specific signal processing algorithms are applied to improve power efficiency and link quality, then communication link robustness is enhanced, but device complexity and operational costs increase

Engineering Contradiction:
Improvecommunication link robustnessVSAvoidsignal processing algorithms
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The repeater applies local quality by using different signal processing algorithms tailored to specific waveform types rather than a uniform processing approach. Each waveform category (e.g., OFDM, spread spectrum, frequency hopping) receives processing optimized for its characteristics, thereby enhancing communication link robustness while managing device complexity through targeted rather than universal processing.

Inventive Principle:
Principle #3Local quality

3Use of energy by moving object

If all incoming signals are processed without waveform classification, then ease of manufacture and operational simplicity are maintained, but power efficiency and signal quality are significantly reduced

Engineering Contradiction:
Improvepower amplifier efficiencyVSAvoidoperational simplicity
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

The repeater employs dynamic operation by adapting its signal processing behavior based on the detected waveform type. The system dynamically selects and applies appropriate processing algorithms, allowing it to optimize power amplifier efficiency for each waveform category while maintaining ease of operation through automated classification and adaptation rather than manual configuration.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9008156B1Waveform differentiating repeater
Publication Date: 2015.04.14 XILINX INC
  • US9008156B1 patent drawing
  • US9008156B1 patent drawing
  • US9008156B1 patent drawing

AI summary

An apparatus relates generally to a repeater. In such an apparatus, the repeater has a signal analysis and classification block. The signal analysis and classification block includes a signal analysis block and a classification block. The signal analysis block is coupled to receive a digital signal which is a digital version of an input signal received by the repeater. The signal analysis block is coupled to provide signal information regarding the digital signal to the classification block. The classification block is configured to provide classification information to classify the digital signal using the signal information provided as being a waveform type of a group of waveform types.