Integrated Coax Ethernet Distribution System
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Solution Overview
Problem
Conventional broadband infrastructure for CATV systems is costly and inefficient, requiring multiple devices such as cable modems and Wi-Fi/RF nodes in each subscriber's home, which increases deployment costs and complexity.
Innovation Solution
Integrating cable modems and Wi-Fi/RF nodes into the CATV network's fiber node, using Ethernet-to-RF converters to distribute signals, thereby eliminating the need for these devices in individual homes and allowing shared modem functionality among multiple subscribers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable modems and Wi-Fi/RF nodes are installed in each subscriber's home, then individual service functionality is ensured, but deployment cost and device complexity increase
Solution Approach 1:
The patent combines multiple previously separate devices (cable modem, Wi-Fi router, Ethernet-to-RF converter) into a single integrated modem termination system located at the headend. This consolidation maintains service functionality while reducing the number of devices needed at subscriber locations and simplifying deployment
Solution Approach 2:
The integrated modem termination system performs multiple functions simultaneously: cable modem functionality for data conversion, Wi-Fi/RF node functionality for wireless distribution, and Ethernet-to-RF conversion for signal adaptation. This multi-functionality eliminates the need for separate devices at each subscriber location
2Reliability
If multiple separate devices are used in each home, then service functionality is complete, but overall deployment cost increases
Solution Approach 1:
By merging cable modem, Wi-Fi router, and Ethernet-to-RF converter functions into a single headend system, the patent reduces the total number of devices that need to be manufactured, stocked, and installed across thousands of subscriber locations, thereby reducing overall deployment costs
Solution Approach 2:
Instead of deploying physical copies of modem and router devices to each subscriber location, the patent creates a virtual copy of the service functionality through RF signal distribution over the existing coaxial infrastructure, eliminating the need for multiple expensive hardware copies
3Productivity
If conventional broadband infrastructure is used, then service delivery is achieved, but system complexity and cost increase
Solution Approach 1:
The integrated modem termination system serves as a universal platform that handles multiple service types (cable modem data service, Wi-Fi wireless service, Ethernet conversion) through a single system architecture, reducing overall system complexity compared to deploying separate specialized devices
Solution Approach 2:
The patent introduces an Ethernet-to-RF converter as an intermediary device that bridges the digital Ethernet domain and the analog RF distribution domain, enabling seamless integration of different service types through a unified RF signal distribution mechanism
Data Source
AI summary
The present invention provides for eliminating the requirement for cable modems and routers to be installed in subscribers homes, and/or establishments, by instead including the cable modems and routers in a CATV provider's main distribution line, for sharing amongst a plurality of subscriber homes and/or establishments.