Coaxial Media Converter Service Provisioning
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Solution Overview
Problem
The convergence of telecommunications and broadcast television services in coaxial cable systems requires compatibility between different service provisioning processes, leading to high costs and low efficiency for multiple service operators due to distinct technical standards and provisioning methods between broadcast and television operators and telecommunications operators.
Innovation Solution
A service provisioning method in a coaxial cable system that involves a coaxial media converter (CMC) connecting to a DHCP server and a cable modem (CM), where the CMC receives a DHCP Ack message, replaces the TFTP server address with its IP address, and sends the updated message to the CM, and acquires and converts configuration files into a format identifiable by the CM, enabling dynamic service flow connections and compatibility with the C-DOCSIS standard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a broadcast and television operator deploys a separate service provisioning system for coaxial cable networks, then the network service can be provided according to DOCSIS standards, but the cost increases and efficiency decreases due to maintaining separate provisioning systems for both broadcast and television networks
Solution Approach 1:
The patent makes the CMC device universal by enabling it to perform both traditional broadcast television provisioning functions and new telecommunications service provisioning functions. The CMC acts as a DHCP server that can allocate IP addresses to both CM devices for television services and RTU devices for telecommunications services, eliminating the need for separate provisioning systems.
Solution Approach 2:
The patent merges the previously separate broadcast and television service provisioning processes into a single unified process. The CMC handles DHCP address allocation, TFTP configuration file delivery, and service flow management for both types of services through the same interface and configuration mechanisms, reducing system complexity.
2Adaptability or versatility
If dynamic service flow connections are established between CM and CMC for broadcast and television services, then service flexibility is improved, but the provisioning process becomes more complex compared to preconfigured telecommunications services
Solution Approach 1:
The patent implements self-service provisioning where the CMC automatically performs DHCP address allocation, configuration file delivery via TFTP, and service flow setup without requiring manual operator intervention. The system autonomously handles the dynamic establishment of service flows based on service requests, simplifying operations despite the dynamic nature of the connections.
3Reliability
If configuration files are delivered through a separate TFTP server for broadcast and television services, then service provisioning follows standard protocols, but the system requires additional infrastructure components increasing complexity
Solution Approach 1:
The patent combines the TFTP server functionality directly into the CMC device, eliminating the need for a separate TFTP server infrastructure component. The CMC uses its existing service flow connection to deliver configuration files to CM devices, reducing the number of required components while maintaining reliable configuration delivery through the established service flow mechanism.
Data Source
AI summary
Embodiments of the present disclosure provide a service provisioning method in a coaxial cable system, the method comprises: a CMC receives a DHCP Ack message from a DHCP server and replaces an address of a TFTP server in the DHCP Ack message with an IP address of the CMC; the CMC sends the DHCP Ack message carrying the IP address of the CMC to the CM; and the CMC receives a request message from the CM for delivering a configuration file, acquires a configuration file corresponding to the CM, and after converting the configuration file corresponding to the CM into a format identifiable by the CM, sends the configuration file to the CM.