Multimedia Transport Protocol Unified Packet Structure
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Solution Overview
Problem
Conventional multimedia content transmission methods are inefficient due to the need for separate protocols for different media types, such as video, audio, and caption information, leading to difficulties in transmitting complex multimedia content.
Innovation Solution
The implementation of a multimedia transport (MMT) system with three functional layers: encapsulation, delivery, and control layers, which encapsulates and optimizes multimedia content for transmission across various networks, allowing for integrated transmission and reception of multimedia data using a unified packet format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate protocols are used for different media types (video, audio, caption), then each media type can be transmitted according to its specific requirements, but the system complexity increases and transmission efficiency decreases
Solution Approach 1:
The patent implements a universal MMT protocol that can handle multiple media types (video, audio, caption, etc.) through a single unified protocol structure. The protocol uses flexible payload types and adaptation field mechanisms to accommodate different media characteristics without requiring separate protocol stacks, thereby reducing system complexity while maintaining adaptability to various media requirements
2Reliability
If separate protocols are used for different media types, then each protocol can be optimized for its specific media, but the overall transmission efficiency decreases due to multiple protocol handling
Solution Approach 1:
The patent merges multiple separate protocol handling into a single MMT protocol framework. By combining video, audio, and caption transmission into one unified protocol with shared control mechanisms and packet structures, the system reduces overhead from multiple protocol stacks while maintaining optimized transmission paths for each media type through dedicated payload handling and timing synchronization
3Productivity
If a unified protocol is used for all media types, then transmission efficiency improves and complexity reduces, but adaptability to specific media requirements may be compromised
Solution Approach 1:
The MMT protocol segments the transmission into distinct layers: a unified protocol header for common control functions and separate payload sections for different media types. Each payload type can be independently configured with media-specific parameters, timing information, and adaptation fields, allowing the unified protocol to maintain high transmission efficiency while preserving adaptability to specific media requirements through modular payload handling
Data Source
AI summary
A method for transmitting data of multimedia content is provided. A packet including a packet header and a packet payload is identified. The packet payload includes an access unit including media data related to the multimedia content and information related to the access unit. Control information for delivery and consumption of the multimedia content is identified. The identified packet is transmitted. The identified control information is transmitted separately from the packet. The control information includes type information related to content in the multimedia content, discovery information related to the content in the multimedia content, and relationship information related to contents in the multimedia content.