Broadcast Control Message Configuration for Hybrid MMT Signaling
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Solution Overview
Problem
Conventional MPEG-2 TS systems face inefficiencies in transmitting multimedia services due to unidirectional communication and fixed frame sizes, leading to unnecessary overhead in hybrid networks supporting hybrid content.
Innovation Solution
The proposed method configures a control message using the MMT standard, which includes encapsulation, transport, and control layers to manage hybrid multimedia content effectively across heterogeneous networks, providing control information for hybrid service delivery.
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 media data is divided into packets with flexible sizes rather than fixed frames. The packetization adapts to network conditions and content requirements, allowing efficient transmission in IP-based networks while maintaining reliability through error handling mechanisms designed for packet-switched environments.
Solution Approach 2:
The invention changes the fundamental parameters of the transmission format from MPEG-2 TS fixed 188-byte frames to variable-size IP packets. This parameter change enables better utilization of network bandwidth and reduces overhead in heterogeneous networks while maintaining compatibility with error-prone transmission environments through appropriate error handling.
2Ease of operation
If MPEG-2 TS with fixed frame size is used, then synchronization is simplified, but transmission overhead increases in hybrid networks
Solution Approach 1:
The patent segments media data into multiple packets for transmission, where each packet contains appropriate synchronization information. This segmentation allows synchronization to be maintained at the packet level rather than requiring complete fixed-size frames, reducing overhead in hybrid networks while preserving synchronization capability.
Solution Approach 2:
The invention moves from two-dimensional fixed frame structures to a more flexible packet-based approach where synchronization is achieved through protocol headers and sequence information in the IP packet dimension, allowing reduced overhead while maintaining sync capability.
3Adaptability or versatility
If conventional transmission protocol for audio/video data is used, then compatibility with legacy systems is improved, but adaptability to IP-based multimedia services deteriorates
Solution Approach 1:
The patent creates a universal packetization scheme that can carry various types of multimedia data (audio, video, metadata) over IP networks using a common protocol structure. This multi-functional approach enables adaptability to different IP-based services while managing complexity through standardized handling procedures.
Solution Approach 2:
The invention introduces an intermediary packetization layer that sits between the media source and the IP network, translating various media formats into a standardized packet structure. This intermediary simplifies the interface to IP networks while maintaining compatibility with diverse legacy systems through appropriate adaptation.
Data Source
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AI summary
The present invention relates to a method of receiving a signaling message from a content providing apparatus in a content consuming apparatus, the method comprising: receiving the signaling message for consuming a content package from the content providing apparatus; identifying control information from the signaling message, the control information comprises type information indicating an identifier of the signaling message, and an additional field including information indicating which at least one table of a plurality of tables is included in a payload of the signaling message; and obtaining the at least one table included in the payload of the signaling message based on the control information, wherein the type information and the additional field are located before the payload in the signaling message.