Guided Wave Fault Detection in Distributed Antenna Systems

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Solution Overview

Problem

Current communication systems face challenges in efficiently detecting and mitigating faults in distributed antenna systems, particularly in wireless communication networks, where faults can lead to disruptions in data transmission and service quality.

Innovation Solution

A guided wave communication system that uses electromagnetic waves bound to a transmission medium, such as wires, to propagate signals without requiring an electrical return path, and employs coupling devices like arc and stub couplers to launch and extract guided waves, enabling fault detection through test signals and feedback mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If traditional wireless communication systems are used to provide broadband access, then coverage area can be extended, but transmission reliability deteriorates due to signal loss and interference over long distances

Engineering Contradiction:
Improvecoverage areaVSAvoidtransmission reliability
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The patent replaces traditional wireless electromagnetic wave transmission with guided wave transmission through transmission media such as wires, pipes, or cables. This substitution allows signals to be confined and guided along specific paths, dramatically reducing signal loss and interference while extending coverage area to remote locations without compromising transmission reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces transmission media (wires, pipes, cables) as intermediary carriers for signal transmission. These intermediaries guide the electromagnetic waves along defined paths, protecting the signals from environmental interference and enabling reliable long-distance transmission while expanding service coverage to areas previously unreachable by traditional wireless systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If distributed antenna systems are deployed to improve service quality, then network performance can be enhanced, but fault detection and mitigation become more difficult due to system complexity

Engineering Contradiction:
Improvenetwork performanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the system continuously monitors transmission quality and automatically detects faults in the distributed antenna system. When a fault is detected, the system provides feedback to redirect traffic through alternative paths or activates backup components, enabling automated fault mitigation without requiring complex manual intervention despite the distributed nature of the system.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent enables the distributed antenna system to self-diagnose and self-correct faults through automated monitoring and detection mechanisms. The system independently identifies transmission issues, locates faulty components, and activates redundancy or alternative transmission paths without external intervention, simplifying the management of complex distributed architectures.

Inventive Principle:
Principle #25Self-service

3Loss of energy

If guided wave communication is implemented to reduce transmission loss, then signal quality can be maintained over long distances, but device complexity increases due to the need for transmission media and coupling devices

Engineering Contradiction:
Improvetransmission lossVSAvoiddevice complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent employs universal transmission media such as existing electrical wiring infrastructure, water pipes, or cable systems that can serve multiple functions - both their original purposes and as guided wave transmission channels. This multi-functionality reduces the need for dedicated transmission infrastructure, thereby limiting the increase in device complexity while still achieving low-loss long-distance signal transmission.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the transmission of electromagnetic guided waves with existing infrastructure systems. By combining multiple functions into single infrastructure elements (e.g., using electrical wires for both power distribution and signal transmission), the system achieves reduced transmission loss over long distances without proportionally increasing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 approach allows for efficient fault detection and mitigation in communication networks, reducing transmission losses and enhancing data transmission reliability by utilizing guided electromagnetic waves that can propagate over long distances with minimal loss, thereby improving network performance and service quality.

Implementation Method 1

employs coupling devices like arc and stub couplers to launch and extract guided waves

Methodology Applied
Scientific EffectElectromagnetic coupling: Electromagnetic Induction

Implementation Method 2

uses electromagnetic waves bound to a transmission medium, such as wires, to propagate signals without requiring an electrical return path

Methodology Applied
Scientific EffectGuided wave propagation: Waveguide

Data Source

PatentUS10291334B2System for detecting a fault in a communication system
Publication Date: 2019.05.14 AT&T INTELLECTUAL PROPERTY I L P
  • US10291334B2 patent drawing
  • US10291334B2 patent drawing
  • US10291334B2 patent drawing

AI summary

Aspects of the subject disclosure may include, for example, a system for transmitting a source test signal directed to a second system of a distributed communication system for a retransmission of the source test signal by the second system and a plurality of other systems of the distributed communication system, receiving a plurality of returned messages from the second system, where each of the plurality of returned messages includes information associated with a signal test performed by the second system and at least one of the plurality of other systems, where the signal test comprises a comparison of a retransmission of the source test signal and an expected signal profile of the source test signal, and determining from the plurality of returned messages whether any one of the plurality of other systems is experiencing a degradation in transmission signal quality. Other embodiments are disclosed.