RF Carrier Signal Meta-Data Embedding for Interference Identification

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Solution Overview

Problem

Radio Frequency (RF) transmission devices frequently fail, causing improper carrier signal transmission, leading to interference with unauthorized spectral locations, which is a recurring challenge in telecommunication systems, particularly in the VSAT Satellite industry, where the quality of electronics is lower than larger earth stations.

Innovation Solution

A method is developed to analyze and modulate electromagnetic carrier signals using a processing device, determining if they operate outside transmission parameters, and embedding meta-data to identify the transmission source, allowing for rapid identification of rogue carriers by modulating the original carrier signal with a meta-carrier signal and transmitting this composite signal to a remote receiving device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If RF transmission devices operate without failure detection mechanisms, then device complexity is reduced, but reliability deteriorates due to unauthorized carrier transmissions interfering with other spectrum users

Engineering Contradiction:
Improveprevention of unauthorized carrier transmissionsVSAvoidcomplexity of failure detection mechanisms
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of carrier signal parameters (frequency, power, bandwidth) before transmission occurs. The failure detection mechanism monitors transmission parameters in advance and identifies potential failures before they cause harmful unauthorized transmissions, thereby preventing interference proactively rather than reactively

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback monitoring of carrier signal parameters during transmission. By constantly measuring frequency, power level, and bandwidth and comparing them against authorized parameters, the system can detect deviations indicating failure conditions and trigger muting or correction actions to prevent unauthorized transmissions

Inventive Principle:
Principle #23Feedback

2Difficulty of detecting and measuring

If RF transmission devices lack identification mechanisms, then device complexity is reduced, but the ability to detect and measure interferer sources deteriorates

Engineering Contradiction:
Improvedifficulty of identifying interferer sourcesVSAvoidcomplexity of identification mechanisms
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The system introduces an identification signal as an intermediary element that carries device-specific information (such as device ID, location, or authorization code) along with the carrier transmission. This intermediary signal enables remote receiving devices to identify the source of transmissions without requiring complex analysis of the carrier itself, simplifying the detection process while maintaining source identification capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system transmits a copy or representation of device identification information embedded within or alongside the carrier signal. This copied identification data allows receiving devices to quickly determine the source of transmissions without needing to physically locate or directly interact with the transmitting device, reducing the complexity of interferer source identification

Inventive Principle:
Principle #26Copying

3Productivity

If failed RF transmission devices continue transmitting without intervention, then productivity is maintained, but harmful factors increase due to spectrum interference

Engineering Contradiction:
Improvecontinuity of transmission operationsVSAvoidspectrum interference from failed devices
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system applies preliminary anti-action by detecting failure conditions and automatically muting or correcting the carrier transmission before harmful unauthorized transmissions can occur. The failure detection mechanism triggers protective actions (muting, frequency correction, power adjustment) in advance to prevent the generation of harmful interferers, thereby eliminating spectrum interference before it affects other users

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system converts the potentially harmful failure condition into a beneficial outcome by using the failure detection mechanism to trigger automatic correction or muting actions. What would normally be a harmful unauthorized transmission is transformed into an opportunity to demonstrate system reliability and protect spectrum integrity, turning a negative event into a positive contribution to overall system performance

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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 method enables rapid detection and identification of failed RF transmission devices, reducing interference by muting or modifying the carrier signal, thereby assisting operators in quickly locating and addressing the source of interference.

Implementation Method 1

modulating, using a modulator and in response to determining that the original carrier signal is operating outside the one or more transmission parameters, the original carrier signal and a meta-carrier signal

Methodology Applied
Scientific EffectModulation: Phase Modulation

Data Source

PatentUS9130785B2Method for the detection and identification of failed electronic radio frequency (RF) transmission devices
Publication Date: 2015.09.08 COMTECH SATELLITE NETWORK TECH INC
  • US9130785B2 patent drawing
  • US9130785B2 patent drawing
  • US9130785B2 patent drawing

AI summary

A method and system for analyzing an electromagnetic (EM) carrier signal that is operating outside transmission parameters by determining that an original carrier signal is operating outside one or more transmission parameters, modulating the original carrier signal and a meta-carrier signal, the meta-carrier signal comprising meta-data that identifies a transmission source, such that a modulated composite carrier signal results, and transmitting the composite carrier signal to a remote receiving device.