Coaxial Media Converter Integration for HFC Network Deployment
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Solution Overview
Problem
Conventional HFC networks face complexity in network deployment due to insufficient broadband data access capabilities and the need for new interface configuration protocols and clock synchronization between EQAM devices and remote nodes.
Innovation Solution
Integrating edge quadrature amplitude modulation (EQAM) modules and DOCSIS front-end modules within coaxial media converters, managed by a single front-end controller, eliminating the need for new interface protocols and clock synchronization, and enabling remote control and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If EQAM devices and remote nodes are deployed with distributed system architecture, then broadband data access capability is improved, but device complexity and deployment complexity increase due to new interface protocols and clock synchronization requirements
Solution Approach 1:
The patent combines the EQAM device and remote node into a single integrated device. The EQAM module and DOCSIS module share common components including signal processing units, transmission interfaces, and control mechanisms. This integration eliminates the need for separate interface protocols and clock synchronization between distinct devices, thereby reducing deployment complexity while maintaining enhanced broadband capabilities.
Solution Approach 2:
The integrated device performs multiple functions simultaneously: it provides both video service modulation (EQAM function) and broadband data access (DOCSIS function) through a single unified platform. The device can handle analog video signals and digital data packets through shared resource allocation, eliminating the need for separate dedicated devices for each function and reducing overall system complexity.
2Adaptability or versatility
If separate EQAM devices and remote nodes are used, then video service and broadband service are provided, but network deployment becomes complex due to new interface configuration protocols and clock synchronization
Solution Approach 1:
The patent merges the previously separate EQAM device and remote node into one integrated device. This consolidation eliminates the need for complex interface configuration protocols between separate devices and removes clock synchronization requirements, significantly simplifying network deployment while maintaining comprehensive service coverage for both video and broadband services.
3Productivity
If distributed system architecture is implemented, then broadband access capability is enhanced, but the number of interface protocols and synchronization mechanisms increases
Solution Approach 1:
The patent integrates multiple interface functions into a unified interface within the single device. The DOCSIS module and EQAM module communicate through internal interfaces rather than external protocols, eliminating the need for complex inter-device protocol stacks and synchronization mechanisms while preserving enhanced broadband access capabilities.
Data Source
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AI summary
Embodiments of the present invention provide a communications system, a method for managing a communications system, and a controller. The communications system includes a front-end device and a remote device, where the remote device includes at least one coaxial media converter CMC, where each CMC includes a data over cable service interface specification DOCSIS front-end module that supports a broadband access service and an edge quadrature amplitude modulation EQAM module that supports a video service, and the at least one CMC and the front-end device are connected by using a digital fiber; and the front-end device includes a controller, where the controller is configured to manage the at least one CMC. According to the embodiments of the present invention, the EQAM module supporting the video service and the DOCSIS front-end module configured for broadband access are disposed in a same coaxial media converter, and the coaxial media converter is controlled and managed by a same front-end controller. In this way, no new interface configuration protocol is needed between the EQAM module and the remote node, and no clock synchronization is needed, and remote control and management is avoided, so that complexity of network deployment can be reduced.