Cable System Configuration Command Interpreter for Network Service Provisioning
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Solution Overview
Problem
The existing coaxial cable television (CATV) systems face bandwidth limitations in transmitting high-speed digital data, making it challenging to meet the increasing demand for digital services like video-on-demand and broadband Internet, while extending optical fiber to each household is economically unfeasible.
Innovation Solution
A method is introduced that uses a configuration command interpreter/compiler to transform configuration commands into device-specific commands based on normalized data models, enabling the existing CATV system to provide advanced network services like L2 switching, L3 routing, and IP networking, without requiring direct compatibility with specific devices, and includes a debugging tool to ensure accurate device configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If optical fiber is extended to each household to meet increasing digital data demand, then data transmission capacity is improved, but system cost and complexity increase significantly
Solution Approach 1:
The patent implements a unified DOCSIS protocol stack that handles multiple service types (Internet, voice, video) through a single communication infrastructure. The system provides universal service delivery across cable, wireless, and fiber networks using the same protocol framework, eliminating the need for separate infrastructure for each service type and reducing overall system complexity.
Solution Approach 2:
The patent introduces an intermediary protocol translation layer that enables communication between different network types (DOCSIS cable network and GigE fiber network). This intermediary layer translates between QAM waveforms and Ethernet protocols, allowing existing coaxial cable infrastructure to interface with high-capacity fiber networks without requiring direct fiber extension to every household.
2Productivity
If DOCSIS protocol translation between cable QAM waveforms and GigE fiber networks is implemented, then data transfer capability is improved, but protocol complexity and transformation overhead increase
Solution Approach 1:
The patent dynamically adjusts protocol parameters based on network conditions and service requirements. The system modifies modulation schemes, data rates, and protocol configurations to optimize performance across different network segments, enabling efficient data transfer between cable and fiber networks while adapting to varying bandwidth demands.
Solution Approach 2:
The patent divides the protocol translation function into separate, modular components. The DOCSIS protocol stack is segmented into distinct layers (physical layer, data link layer, network layer) that can be independently configured and optimized. This segmentation reduces overall complexity by allowing each layer to be developed and maintained separately.
Data Source
AI summary
A novel method for provisioning network services for a cable system is provided. The method provides a configuration command interpreter/compiler that receives configuration commands of the cable system and generates configuration commands understood by the actual physical devices implementing the cable system. The interpreter transforms the configuration commands of the cable system into the configuration commands of the actual physical devices based on a set of normalized data models describing the cable system. The normalized data models are applicable to the cable system regardless of the actual devices implementing the cable system. The normalized data models are specified using normalized parameters that are generally applicable to different types devices that can be used to implement the cable system.