Substream ID for Simplified Media Transport Headers
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Solution Overview
Problem
In IP environments, the existing MPEG-2 TS standard is inefficient for modern multimedia transport over heterogeneous networks, particularly for IPTV and Internet-based services, as it was not optimized for these scenarios, leading to excessive ID fields and complexity in transporting media content across various transport units and protocols.
Innovation Solution
A method and apparatus that generate a substream ID for transporting media content, which can be used across multiple scenarios, including single or multiple ports, servers, and content components, and includes information for backward compatibility with existing RTP payload types, allowing for efficient transport over heterogeneous networks like IP networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate ID fields are independently established for each transport scenario, then the transport system can support various scenarios (single port, multiple ports, different protocols, SVC, MVC), but the number of ID fields becomes excessively increased
Solution Approach 1:
The patent creates a universal substream ID field that can serve multiple transport scenarios (single port, multiple ports, different protocols, SVC, MVC) without requiring separate ID fields for each scenario. This single substream ID field replaces the need for multiple scenario-specific ID fields, thereby reducing the total number of ID fields while maintaining comprehensive scenario support.
Solution Approach 2:
The patent merges the functionality of multiple separate ID fields (for different transport scenarios, protocols, and content components) into a single substream ID field. By combining these previously separate identification mechanisms into one unified field, the system reduces the excessive number of ID fields while preserving the ability to distinguish and manage various transport scenarios.
2Reliability
If the MPEG-2 TS standard is used for modern IP-based multimedia transport, then backward compatibility is maintained, but the transport efficiency is reduced due to excessive ID fields and complexity
Solution Approach 1:
The patent modifies the ID field parameters by introducing a substream ID field with optimized characteristics. This new field changes the parameter structure from multiple separate ID fields to a single streamlined field, reducing complexity while maintaining the ability to identify and manage different content components and transport scenarios, thereby improving transport efficiency without sacrificing compatibility.
3Adaptability or versatility
If multiple transport units are simultaneously used for hybrid transport, then various applications can be attempted, but the configuration complexity increases
Solution Approach 1:
The substream ID field is designed as a universal identifier that works across multiple transport units and hybrid transport scenarios. This single field provides the adaptability needed to support various applications and transport configurations without requiring separate configuration mechanisms for each scenario, thereby reducing configuration complexity while maintaining versatility.
Data Source
AI summary
Disclosed is a method for generating a substream ID usable in transmitting media content based on a plurality of scenarios, and allocating the substream ID for transmitting media. A method for allocating an ID for transmitting media content comprises: a step of generating a substream ID containing information required for transmitting the media content based on a certain scenario from among a plurality of scenarios; and a step of transmitting the substream ID to a client. According to the present invention, a header for the transmission of media may be simplified, media content may be transmitted regardless of the number of ports, number of servers, and presence/absence of additional information, an application to be introduced in the future may be used, and backward compatibility for an existing media content transmission system may be provided.