Broadcast Reception Device Independent Channel Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the context of next-generation digital broadcasting using the MPEG Media Transport (MMT) system, local stations face excessive distribution costs and risks due to the need to integrate and manage multiple data broadcasting applications from different delivery segments, leading to unclear responsibility demarcation and increased burdens on distribution facilities.
Innovation Solution
A reception device and method that allow for independent management of data broadcasting applications and control information for each delivery segment, using a broadcast transmission system that multiplexes and transmits data broadcasting applications and control information through independent channels, enabling each local station to manage its own applications without relying on key station data flows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all data broadcasting applications from multiple delivery segments are integrated into a single channel for management, then centralized control is achieved, but distribution costs and operational burdens on local stations increase significantly
Solution Approach 1:
The patent divides the data broadcasting system into multiple independent channels, each corresponding to a specific delivery segment (key station or local station). Each channel transmits applications and control information independently, allowing local stations to receive only their designated applications without integrating all segment data into a single channel. This segmentation reduces the operational burden and complexity on local stations while maintaining centralized control through the key station's ability to manage its own channel.
2Adaptability or versatility
If local stations perform addition and replacement work for their own applications in the key station's data flow, then application customization is enabled, but excessive distribution costs are imposed
Solution Approach 1:
The patent allocates separate transmission channels to different delivery segments, allowing local stations to receive their customized applications through their own dedicated channel from the key station. This eliminates the need for local stations to perform costly addition and replacement operations on the key station's main data flow, as each station's applications are transmitted independently in their own channel segment.
Solution Approach 2:
Each local station is equipped with the capability to independently manage and replace its own applications within its designated channel segment. The reception device can autonomously perform addition and replacement work for local station applications without requiring expensive manual intervention or complex operations on the key station's data flow, thereby reducing distribution costs while maintaining customization flexibility.
3Reliability
If independent channels are used for each delivery segment, then responsibility demarcation is clarified, but system complexity increases
Solution Approach 1:
The patent implements independent channels for each delivery segment (key station and local stations), where each channel carries applications and control information specific to that segment. This clear segmentation establishes distinct responsibility boundaries - the key station manages its channel for program-linked applications, while local stations manage their own channels for region-specific applications. The reception device is designed to handle multiple channels independently, processing control information from each channel according to its source, thereby maintaining clear responsibility demarcation without overwhelming system complexity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Control information on a data broadcasting application for each delivery segment is distributed. An application service descriptor for each delivery segment is arranged into an MP table stored in a PA message on the side of a broadcast station. Each application service descriptor indicates information on one application type and priority of the application type. A receiver further selects a specific MH-AIT and data transmission message, on the basis of the priority for each application type, indicated with the application service descriptor, and a default AIT flag.