Adaptive Streaming QoS Metadata for Multi-Path Content Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In adaptive streaming systems like DASH, receivers lack the ability to select optimal content streams based on general network quality information across various delivery paths, such as Internet, terrestrial broadcasting, satellite broadcasting, and wireless LANs, limiting their ability to adapt to different network conditions.
Innovation Solution
A content supply apparatus and method that generates and delivers metadata describing Quality of Service (QoS) parameters for different networks, allowing receivers to determine the required network quality and select streams accordingly, using extended User Service Description (USD) metadata that includes QoS parameters and condition values, and FLUTE-multicasting this metadata.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If receivers use traditional DASH adaptive streaming, then they can select streams based on basic network conditions, but they lack the ability to make informed decisions about optimal stream selection across multiple delivery paths with different QoS characteristics
Solution Approach 1:
The patent segments network quality information by delivery path, creating separate QoS parameter sets for each delivery path (e.g., terrestrial broadcasting, satellite broadcasting, wireless LAN, Internet). This segmentation allows receivers to evaluate and select optimal streams based on the specific characteristics of each delivery path, thereby improving stream selection adaptability while providing comprehensive network quality information.
Solution Approach 2:
The content supply apparatus performs preliminary action by generating and providing QoS parameter information for multiple delivery paths before the receiver needs to make stream selection decisions. This advance provision of network quality information enables receivers to make informed decisions about optimal stream selection across different delivery paths, resolving the information loss problem.
2Adaptability or versatility
If content is delivered through multiple delivery paths with different QoS characteristics, then coverage and accessibility are improved, but receivers lack the necessary information to select optimal streams based on general network quality
Solution Approach 1:
The patent implements universality by creating a unified QoS information provision mechanism that works across multiple delivery paths (terrestrial broadcasting, satellite broadcasting, wireless LAN, Internet). The content supply apparatus generates QoS parameter information that is applicable to all delivery paths, enabling receivers to universally evaluate and select optimal streams regardless of which delivery path is used, thereby maintaining delivery path flexibility while preventing information loss.
3Ease of operation
If receivers make stream selection without QoS parameter information, then system complexity is reduced, but the quality and optimality of stream selection deteriorates
Solution Approach 1:
The patent enables self-service by providing receivers with the necessary QoS parameter information and decision-making capabilities to autonomously select optimal streams based on their own network conditions and preferences. The content supply apparatus provides comprehensive QoS information for multiple delivery paths, and receivers use this information to make informed decisions, thereby improving stream selection quality while maintaining operational simplicity through automated decision-making.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a content supply apparatus, a content supply method, a program, a terminal apparatus, and a content supply system that allow to provide a receiver with pieces of general required network quality information for respective delivery paths for a case of supplying pieces of content of the same content through a plurality of different delivery paths. A content supply apparatus of the present disclosure delivers streams of content through a plurality of different networks, respectively, according to an adaptive streaming technique, and includes: a generating unit that generates metadata describing QoS parameters for the respective plurality of different networks through which the streams are delivered, and condition values of the QoS parameters; and a delivering unit that delivers the generated metadata to a receiver. The present disclosure can be applied to a system that streams content.