Multi-Antenna Jamming Protection for Tactical LTE

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Solution Overview

Problem

Existing LTE systems, including tactical applications, are vulnerable to electronic threats such as jamming and interference due to their reliance on commercial chipsets, which can lead to detection, interception, and other electronic warfare techniques, putting warfighters at risk.

Innovation Solution

A system utilizing a multiple antenna array communicatively coupled to an appliqué that includes processors to receive data with spatial gain, identify repetitive structures in frames, and mitigate interference by separating signals and suppressing unwanted data from identified sources, leveraging beamforming techniques and cyclic prefixes to enhance signal integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If commercial chipsets are used for LTE systems, then integration, miniaturization, and cost reduction are achieved, but vulnerability to electronic warfare threats increases

Engineering Contradiction:

Improveintegration and cost reductionVSAvoidvulnerability to jamming and interference

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent converts the harmful effect of jamming signals into useful information by analyzing the structure and characteristics of interference. The system identifies jamming sources and uses their signal properties to create suppression filters, transforming the harmful interference into a means for detecting and countering the threat.

Inventive Principle:

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

Solution Approach 2:

The patent introduces an intermediary interference suppression module between the commercial LTE chipset and the tactical communication system. This module acts as a buffer that processes signals, identifies jamming, and applies suppression techniques without requiring modification to the commercial chipset itself, thus maintaining ease of manufacture while adding protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If commercial LTE solutions are integrated into tactical systems, then technology advancement and interoperability are achieved, but security and reliability against electronic threats deteriorate

Engineering Contradiction:

Improveinteroperability and technology accessVSAvoidsecurity against electronic warfare

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the tactical communication system into distinct functional modules: the commercial LTE radio module for interoperability, and a separate interference suppression module for security. This segmentation allows the system to maintain commercial interoperability while adding specialized protection capabilities through the separate module.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary interference suppression by continuously monitoring incoming signals for jamming characteristics before they can disrupt communication. The system proactively identifies potential threats and applies suppression filters in advance, preventing security vulnerabilities from materializing during critical operations.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If standard waveforms are used for interoperability, then compatibility is achieved, but susceptibility to detection and jamming increases

Engineering Contradiction:

ImproveinteroperabilityVSAvoiddetection and jamming susceptibility

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by maintaining standard waveforms for the main communication channel to ensure interoperability, while applying specialized interference suppression and anti-jamming techniques locally at the signal processing level. This allows the system to preserve compatibility where needed while adding protection where vulnerable.

Inventive Principle:

Principle #3Local quality

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

The system effectively mitigates waveform interference and jamming, enhancing the security and reliability of LTE communications by isolating desired signals and reducing the impact of unwanted interference, thereby protecting tactical communications from electronic threats.

Implementation Method 1

leveraging beamforming techniques and cyclic prefixes to enhance signal integrity

Methodology Applied

Scientific EffectBeamforming:

Implementation Method 2

the multiple antennas comprising the multiple antenna array provide spatial gain for the data

Methodology Applied

Scientific EffectSpatial gain:

Implementation Method 3

leveraging the repetitive structure to separate signals in the frame from other types of signals in the data

Methodology Applied

Scientific EffectSignal separation:

Implementation Method 4

mitigating interference in the data based on suppressing the data not comprising the separated signals from identified sources

Methodology Applied

Scientific EffectInterference suppression:

Data Source

PatentUS10998927B1Multi-antenna jamming/interference protection for waveforms

Publication Date: 2021.05.04 PERSPECTA LABS INC

AI summary

Embodiments of the present invention include a system, method and computer program product for mitigating interference in data received by a multiple antenna array. Processor(s) executing program code identify signals from users, including active users, and by identifying these signals, mitigate interference and jamming in the received data, overall.