Host Device IP Packet Routing for Broadcast Data
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Solution Overview
Problem
Existing TV services struggle to efficiently process and deliver broadcast data across various networks, including wired and wireless protocols, while maintaining content protection and compatibility with conventional cable systems, especially with the transition to digital broadcasting and Internet Protocol TV (IPTV).
Innovation Solution
A host device and method for processing broadcast data that receives and transforms IP packets, adds identification headers, and multiplexes them for transmission to a Point of Deployment (POD), supporting both wired and wireless networks, and maintaining compatibility with conventional cable systems by using a conditional access system from a conventional cable card, enabling seamless IP-based connectivity over coaxial networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If broadcast data is transmitted through traditional radio transmission media (terrestrial waves, cables, or satellites), then content delivery is achieved, but the system cannot efficiently process IP-based broadcast data or provide bidirectional Internet services
Solution Approach 1:
The host device is designed to perform multiple functions by receiving both traditional broadcast data and IP-based broadcast data through a single integrated system. The device includes an IP physical interface unit for IP data reception, a broadband interface unit for traditional broadcast reception, and a security card interface that handles both data types uniformly, enabling one device to replace multiple specialized devices.
2Reliability
If the host device interfaces with a Point of Deployment (POD) to process IP packets, then content protection and delivery are improved, but the device complexity increases due to additional processing components
Solution Approach 1:
The POD (Point of Deployment) acts as an intermediary component that the host device interfaces with to handle IP packet processing. The POD receives IP packets from the IP physical interface unit, processes them through the security card interface, and manages content protection. This intermediary approach allows the host device to offload complex IP processing tasks while maintaining content security.
3Adaptability or versatility
If the system uses conventional cable card conditional access for content protection, then backward compatibility with conventional cable systems is maintained, but the system cannot efficiently handle IP-based broadcast data
Solution Approach 1:
The system dynamically adapts its data processing path based on the input data type. When receiving traditional broadcast data, the system routes it through the broadband interface unit and security card interface using conventional cable card conditional access. When receiving IP-based broadcast data, the system routes it through the IP physical interface unit and POD for IP-specific processing. This dynamic routing enables the system to maintain backward compatibility while efficiently handling modern IP-based services.
Data Source
AI summary
A host device interfacing with a point of deployment (POD) and a method of processing a broadcasting data are disclosed. An IP physical interface unit receives a frame including an internet protocol (IP) packet carrying broadcast data through a network modem. A Routing Engine transforms the frame to an IP packet and routs the IP packet based on a destination information included in the frame. And a Multiplexer generates an IP MPEG packet by appending a Packet Header carrying identification information to the IP packet, multiplexes the IP MPEG packet and forwards the multiplexed IP packet to the POD.