Hybrid Content Control Messaging for Efficient MPEG Transmission
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Solution Overview
Problem
Conventional MPEG-2 TS systems face inefficiencies in multimedia service transmission due to unidirectional communication and fixed frame size, leading to unnecessary overhead in hybrid networks supporting hybrid multimedia content.
Innovation Solution
The proposed solution involves an apparatus and method for configuring control messages using a Device Capability Information Table (DCIT) within a signaling message to optimize the transmission of hybrid multimedia content across heterogeneous networks, enabling efficient MPEG transport technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MPEG-2 TS is used for delivering multimedia contents, then transmission reliability in error-prone environments is improved, but transmission efficiency deteriorates due to fixed frame size and unidirectional communication
Solution Approach 1:
The patent introduces dynamic packetization where data is divided into packets with flexible sizes rather than fixed frames. The packet structure allows variable-length payloads and adaptive segmentation, enabling efficient utilization of network bandwidth while maintaining error resilience through selective retransmission capabilities.
Solution Approach 2:
The patent segments multimedia content into discrete packets that can be independently transmitted, routed, and reassembled. This segmentation enables parallel transmission paths, error isolation, and flexible retransmission strategies, improving both reliability and efficiency compared to monolithic fixed-frame approaches.
2Adaptability or versatility
If conventional transmission protocols are used, then compatibility with existing systems is improved, but overhead increases due to IP-specific protocols for audio/video data
Solution Approach 1:
The patent designs a universal packet structure that can carry various types of data (audio, video, control information) in a unified format. This multi-functional packet design eliminates the need for separate protocol stacks for different media types, reducing overhead while maintaining compatibility with existing IP-based systems through optional header fields.
Solution Approach 2:
The patent extracts and separates essential transmission control information from bulky protocol headers, placing only necessary fields in the packet header while moving optional and redundant information to separate control messages or lower-layer protocols, thereby minimizing per-packet overhead.
3Stability of the object's composition
If fixed frame size is used for transmission, then synchronization is improved, but bandwidth utilization deteriorates due to inefficient packing of variable-size content
Solution Approach 1:
The patent implements dynamic packet sizing where each packet's length is adjusted to match the actual content size plus necessary overhead. Synchronization is maintained through sequence numbers and timing markers within packets rather than relying on fixed frame boundaries, allowing efficient bandwidth utilization without sacrificing sync capability.
Solution Approach 2:
The patent changes the size parameter of transmission units from fixed to variable, allowing packets to be precisely sized according to content requirements. This parameter change eliminates wasted space from fixed-frame padding while maintaining synchronization through embedded timing information and sequence tracking mechanisms.
Data Source
AI summary
The present invention relates to an apparatus and a method for configuring a control message in a broadcasting system for supporting a multimedia service based on an interne protocol. To this end, control information to be recorded in a payload of a control message to be configured is generated based on a table selected from among a plurality of tables for defining the information related to the generation and consumption of a hybrid content when a message type of the control message to be configured is determined to be a type for providing information related to the generation and consumption of a hybrid content. In addition, the information related to the type of the selected table is recorded in an optional field of the control message to be configured.