Broadcast Signal Transmission Device PLP Segmentation
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Solution Overview
Problem
Current digital broadcast systems face challenges in data transmission efficiency, robustness, and network flexibility, particularly in supporting high-definition images and mobile reception environments.
Innovation Solution
A method of generating and processing broadcast signals that includes encoding broadcast data with first and second-level signaling information, where the second-level signaling information is transmitted within the broadcast signal, containing IP address information and PLP ID for identifying physical layer pipes, enabling efficient data transmission and reception across various devices and 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 service quality is improved, but data transmission efficiency deteriorates
Solution Approach 1:
The broadcast signal is divided into multiple physical layer pipes (PLPs), each carrying different types of data. This segmentation allows efficient transmission of large data volumes by organizing them into structured, manageable segments that can be transmitted and processed systematically, resolving the contradiction between data quantity and transmission efficiency.
2Adaptability or versatility
If digital broadcast signals include various types of additional data, then service functionality is improved, but network robustness deteriorates
Solution Approach 1:
Different types of data (video, audio, additional services) are segmented into separate PLPs with different robustness characteristics. This allows the system to maintain high functionality while ensuring robustness for critical data through appropriate error correction and transmission schemes tailored to each segment's requirements.
3Adaptability or versatility
If broadcast signals support mobile reception equipment, then network flexibility is improved, but reception reliability deteriorates
Solution Approach 1:
The system dynamically adapts transmission parameters for mobile reception by creating specific PLPs with enhanced robustness characteristics for mobile devices. The receiver can dynamically select appropriate PLPs based on reception conditions, maintaining reliability while supporting flexible mobile access.
Data Source
AI summary
A method of processing a broadcast signal in a transmitting system, includes encoding broadcast data for broadcast services; encoding first signaling information providing information for discovery and acquisition of a broadcast service; encoding second signaling information including service entries for the broadcast services, wherein one of the service entries includes a first service identifier for identifying the broadcast service and bootstrap information for discovering a transport session carrying the first signaling information, wherein the bootstrap information includes destination Internet Protocol (IP) address information of the transport session carrying the first signaling information and destination port number information of the transport session carrying the first signaling information; and encoding physical layer signaling information including first physical layer signaling information having a fixed size and second physical layer signaling information having a variable size.