Intelligent Subscriber Subsystem with On-Demand Optical Access

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Solution Overview

Problem

The increasing bandwidth demand and deployment costs of advanced optical access communication systems, coupled with decreasing return on investment, pose a significant business dilemma, particularly in providing pervasive and always-on internet access across diverse communication networks.

Innovation Solution

A dynamic intelligent bidirectional optical access communication system utilizing phase and intensity modulators at the intelligent subscriber subsystem to reduce Rayleigh backscattering, enabling a longer-reach optical access network that eliminates the need for middle equipment like routers and switches, and providing wavelength, bandwidth, and service on-demand through a cyclic wavelength arrayed waveguide grating router.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If advanced optical access communication systems are deployed to meet increasing bandwidth demand, then service capability and data rates are improved, but deployment costs and device complexity increase significantly

Engineering Contradiction:
Improvebandwidth demandVSAvoiddeployment cost
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts and removes middle equipment (routers and switches) from the optical access network architecture. By implementing intelligent subscriber subsystems directly at customer premises that can perform routing and switching functions locally, the system eliminates the need for traditional middle equipment, thereby reducing deployment costs and device complexity while maintaining high bandwidth capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The intelligent subscriber subsystem is designed to perform multiple functions including routing, switching, and customer premises equipment functions within a single device. This multi-functional approach consolidates what would traditionally require separate pieces of equipment, reducing overall system complexity and deployment cost while meeting increasing bandwidth demands

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

2Adaptability or versatility

If middle equipment like routers and switches are deployed to manage optical signals, then service flexibility and adaptability are improved, but capital cost and operational cost increase

Engineering Contradiction:
Improveservice flexibilityVSAvoidcapital cost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges the functions of routers, switches, and customer premises equipment into a single intelligent subscriber subsystem. This consolidation eliminates the need for separate middle equipment while maintaining service flexibility through the integrated device's ability to perform multiple network functions locally

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The intelligent subscriber subsystem enables customers to access and manage services directly at their premises without requiring additional middle equipment. The system provides self-service capabilities for service activation, management, and delivery, reducing the need for capital-intensive infrastructure while maintaining adaptability

Inventive Principle:
Principle #25Self-service

3Length of stationary object

If traditional optical access networks are extended to reach more customers, then connectivity coverage is improved, but signal loss and reliability deteriorate due to Rayleigh backscattering

Engineering Contradiction:
Improvenetwork reachVSAvoidsignal quality
Core Design Contradiction:
Length of stationary objectVSReliability

Solution Approach 1:

The patent converts the harmful Rayleigh backscattering effect into a beneficial measurement tool. By using optical time domain reflectometry (OTDR) to measure backscattered light, the system can detect signal quality issues and automatically adjust transmission parameters to compensate for attenuation, thereby extending network reach while maintaining signal quality and reliability

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 solution extends the reach of optical access communication networks, reduces capital and operational costs, and enhances service flexibility by offering on-demand services, such as ultra-high definition content, while maintaining high data rates.

Implementation Method 1

an optical signal from the optical source is phase modulated by a phase modulator

Methodology Applied
Scientific EffectPhase modulation: Phase Modulation

Implementation Method 2

The reduced Rayleigh backscattering effect can enable a longer-reach optical access communication network

Methodology Applied
Scientific EffectIntensity modulation: Phase Modulation

Implementation Method 3

Together, these two critical optical modules can reduce the Rayleigh backscattering effect on the propagation of optical signals

Methodology Applied
Scientific EffectRayleigh backscattering: Rayleigh Scattering

Implementation Method 4

an optical signal from the optical source is phase modulated by a phase modulator, and then intensity modulated by an intensity modulator to provide a modulated optical signal

Methodology Applied
Scientific EffectOptical signal propagation: Optical Fibre

Data Source

PatentUS11843903B2Intelligent subsystem in a access networks
Publication Date: 2023.12.12 MAZED MOHAMMAD A
  • US11843903B2 patent drawing
  • US11843903B2 patent drawing
  • US11843903B2 patent drawing

AI summary

An intelligent subsystem coupled with a radio transceiver, a voice processing module, an intelligent (smart) camera, a first set of computer implementable instructions in an artificial intelligence algorithm and a fuzzy logic algorithm (stored in one or more non-transitory storage medias) and a second set of computer implementable instructions to provide a search on an internet in response to a user's interest/preference (stored in the one or more non-transitory storage medias), wherein the first set of computer implementable instructions and the second set of computer implementable instructions are combined/integrated or separated.