Broadcast Signal Encoding With Layered Coding Transport
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Solution Overview
Problem
Current digital broadcast systems face challenges in data transmission efficiency, robustness, and network flexibility, especially when handling large amounts of data and mobile or indoor receptions.
Innovation Solution
The method involves encoding broadcast data with layered coding transport (LCT) packets, including media delivery event (MDE) blocks and extension headers with NTP timestamps, and using protocols like ROUTE and MMT for service layer and media transport signaling, enabling efficient transmission and reception of digital broadcast signals across various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If digital broadcast signals transmit large amounts of video/audio data and additional data, then HD images and multichannel audio services are provided, but data transmission efficiency and network robustness deteriorate
Solution Approach 1:
The patent segments broadcast data into distinct types (video data, audio data, signaling data) and processes each type through dedicated encoding and transmission paths. This segmentation allows optimized handling of different data characteristics, improving overall transmission efficiency while maintaining high data volumes for HD video and multichannel audio.
Solution Approach 2:
The patent introduces signaling data as an intermediary layer that manages and coordinates the transmission of large amounts of broadcast content. This signaling layer includes service layer signaling and transport layer signaling that efficiently control data flow, enabling robust transmission of large data volumes without overwhelming the network.
2Adaptability or versatility
If digital broadcast signals include various types of additional data, then additional services are provided, but transmission robustness and network flexibility deteriorate
Solution Approach 1:
The patent implements dynamic signaling mechanisms that adapt transmission parameters based on service requirements and network conditions. Service layer signaling dynamically configures transport parameters, allowing the system to maintain robustness across diverse services including HD video, multichannel audio, and additional data services.
Solution Approach 2:
The patent changes transmission parameters at multiple levels (service layer and transport layer) to optimize for different service types. By dynamically adjusting encoding parameters, packetization schemes, and signaling information, the system maintains high reliability across diverse service offerings without compromising transmission robustness.
3Adaptability or versatility
If mobile reception equipment is considered for network flexibility, then mobile reception capability is improved, but transmission robustness deteriorates
Solution Approach 1:
The patent creates a universal signaling framework that serves both fixed and mobile reception scenarios through the same protocol structure. The service layer signaling and transport layer signaling work together to provide location-independent service configuration, enabling robust transmission to mobile devices while maintaining the same reliability standards as fixed installations.
Data Source
AI summary
A method for processing a broadcast signal according to an embodiment of the present invention includes encoding data in one or more packets of a first protocol and data in one or more packets of a second protocol, wherein the one or more packets of a first protocol carry one or more service components of a first broadcast service, and a first service layer signaling information describing the first broadcast service of the one or more service components, and wherein one or more packets of a second protocol carry one or more service components of a second broadcast service, and a second service layer signaling information describing the second broadcast service of the one or more service components, the first protocol being distinct from the second protocol; processing the encoded data; and transmitting the broadcast signals carrying the processed data.