Network Termination Apparatus Segmentation for FTTP Access

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Solution Overview

Problem

The existing technologies for connecting customer premises to external telecommunications networks, particularly in the context of fibre to the premises (FTTP), face challenges such as complexity, user-friendliness, health and safety concerns, and the need for flexible upgradeability and maintenance, especially for residential customers, while ensuring minimal disruption and reliability of the network.

Innovation Solution

The apparatus separates the network termination equipment into two modules, with the network operator module located externally and the customer module internally, connected by a data bus, allowing the network operator to access and control the external network components without entering the premises, while the customer can manage their own internal components, enhancing accessibility, safety, and upgradeability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If optical fibre termination equipment is installed at customer premises, then telecommunications bandwidth and performance are improved, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvetelecommunications bandwidthVSAvoidequipment complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The optical network termination system is divided into two separate modules: a network operator module containing the optical network terminal and management interfaces, and a customer module with user-friendly interfaces. This segmentation allows the complex optical fibre termination functionality to be provided while hiding the complexity from customers, who only interact with the simplified customer module.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If customers are allowed to access and modify optical fibre equipment, then upgradeability and customization are improved, but safety risks and network disruption risks increase

Engineering Contradiction:
ImproveupgradeabilityVSAvoidsafety risks
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system separates customer-accessible functions from network-critical functions into distinct modules. The customer module provides upgradeability and customization for customer premises equipment, while the network operator module protects the optical fibre network from unauthorized access. This segmentation enables customers to modify their equipment without exposing the optical fibre infrastructure to safety risks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The network operator module acts as an intermediary between the optical fibre network and customer equipment. It provides controlled interfaces that allow customer customization and upgrades while maintaining safety protocols and preventing direct access to the optical fibre infrastructure, thus eliminating laser hazards and fibre breakage risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If network operator maintains full control over termination equipment, then network reliability is improved, but ease of operation and customer autonomy deteriorate

Engineering Contradiction:
Improvenetwork reliabilityVSAvoidcustomer autonomy
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The termination system is segmented into a network operator module that maintains control over network reliability and a customer module that provides ease of operation and autonomy. The network operator module handles critical functions like optical fibre connection and network monitoring, while the customer module enables customers to independently configure and upgrade their own equipment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The network operator module serves as an intermediary that ensures network reliability while enabling customer autonomy. It provides standardized interfaces and protocols that allow customer modules to operate independently without compromising network integrity, thus achieving both reliability and ease of operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Speed

If optical fibre is routed through premises, then bandwidth is improved, but health and safety hazards increase due to laser exposure and fibre breakage

Engineering Contradiction:
ImprovebandwidthVSAvoidlaser hazard
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The network operator module acts as an intermediary that manages optical fibre routing and laser exposure risks. It incorporates safety features such as laser safety interlocks, fibre break detection, and controlled optical signal emission, thereby enabling high-bandwidth optical fibre connections while protecting customers from laser hazards and fibre breakage.

Inventive Principle:
Principle #24Intermediary (Mediator)

5Adaptability or versatility

If full optical termination equipment is installed, then future-proofing and capabilities are improved, but cost increases

Engineering Contradiction:
Improvefuture-proofingVSAvoidcost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The optical termination system is segmented into essential network operator functions and optional customer functions. Customers can choose to install only the minimum required network operator module for basic connectivity, or add customer modules for enhanced capabilities. This segmentation allows future-proofing through modular additions while controlling initial costs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Customers can implement partial optical termination with only the essential network operator module for basic high-speed connectivity, avoiding the cost of full-featured equipment. The system is designed to support incremental upgrades, allowing customers to add capabilities over time rather than requiring full equipment installation upfront.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP1994435B1Network termination apparatus
Publication Date: 2019.05.15 BRITISH TELECOM PLC
  • EP1994435B1 patent drawingFigure 1
  • EP1994435B1 patent drawingFigure 2
  • EP1994435B1 patent drawingFigure 3A

AI summary

Apparatus for connecting telecommunications equipment of premises to a telecommunications network, the apparatus comprising a first module associated with the telecommunications equipment, a second module associated with the telecommunications network, the first module connectable to the second module by a telecommunications link, and access means permitting access to only one of either the first module or the second module.