Broadcasting Signal Transmission Device Using PLP Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital broadcast systems face challenges in data transmission efficiency, network robustness, and flexibility, especially in mobile reception environments, as they struggle to handle high-capacity video/audio data and additional services without requiring additional frequency allocation.
Innovation Solution
The proposed solution involves a method and apparatus for transmitting and receiving broadcast signals using RF signals within conventional broadcasting systems, employing OFDM modulation, LDPC coding, and MIMO systems to differentiate and decode service components, ensuring robust error correction and flexible data transmission across various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If digital broadcast signals include high capacity video/audio data and additional services, then the service capability and data amount increase, but the data transmission efficiency and network robustness deteriorate
Solution Approach 1:
The broadcast signal is divided into multiple PLPs (Physical Layer Pipes), each carrying different types of data (video, audio, service information). This segmentation allows efficient resource allocation and transmission optimization for different data types, improving overall transmission efficiency while handling large data volumes.
Solution Approach 2:
The patent introduces a new frame structure with multiple dimensions including super-frames, frames, and sub-frames, allowing data to be organized and transmitted across multiple temporal and structural dimensions. This enables efficient handling of high-capacity data by distributing it across multiple transmission dimensions rather than a single channel.
2Quantity of substance
If digital broadcast signals include high capacity video/audio data and additional services, then the service capability and data amount increase, but the network robustness deteriorates
Solution Approach 1:
The patent implements forward error correction (FEC) and redundancy mechanisms in advance of potential transmission errors. The frame structure includes error correction codes and redundant data paths that cushion against network failures, ensuring robustness when transmitting large amounts of data through potentially unreliable mobile channels.
Solution Approach 2:
The system dynamically adjusts transmission parameters such as modulation schemes, coding rates, and PLP configurations based on channel conditions. This allows the network to maintain robustness by adapting parameters in response to changing transmission environments while still delivering high-capacity data services.
3Adaptability or versatility
If conventional broadcasting systems are used without additional frequency allocation, then system compatibility is maintained, but the capacity to handle high-capacity data and additional services is limited
Solution Approach 1:
The patent merges multiple data streams (video, audio, service information) into a unified PLP-based transmission framework that operates within the existing frequency bandwidth. By combining different service components into an integrated transmission structure, the system achieves enhanced service capability without requiring additional frequency allocation.
Solution Approach 2:
The new frame structure and PLP mechanism are designed to be universal, supporting multiple service types (HD video, mobile broadcasting, data services) within the same frequency bandwidth. This multi-functional approach allows conventional broadcasting systems to deliver diverse high-capacity services without expanding the frequency spectrum allocation.
4Device complexity
If data is transmitted through a single integrated channel, then system complexity is reduced, but the flexibility in handling different service components and mobile reception deteriorates
Solution Approach 1:
The transmission system is segmented into multiple independent PLPs, each optimized for specific service components. This segmentation provides flexibility in handling different service types and mobile reception conditions while maintaining manageable system complexity through modular architecture and standardized processing for each PLP.
Data Source
AI summary
Disclosed is a broadcasting signal transmission device, a broadcasting signal reception device, and a method for transmitting/receiving a broadcasting signal using same. The method for receiving the broadcasting signal comprises the following steps: receiving the broadcasting signal, which includes a transmission frame, wherein the transmission frame includes a plurality of PLPs, which transmit components that constitute a broadcasting service, first signaling information and second signaling information, which include the signaling information of the plurality of PLPs, a first preamble signal, which has been signaled with a preamble format, and a second preamble signal, which has been signaled with pilot pattern information, wherein one of the plurality of PLPs is a base PLP, which includes a program number that corresponds to the broadcasting service and program map table information, which has been signaled with identifying information for each of the PLPs; demodulating the broadcasting signal based on the first and the second preamble signals; FEC decoding the demodulated broadcasting signal; and identifying a PLP group that includes the plurality of PLP from the FEC decoded broadcasting signal based on the first and the second signaling information, decoding at least one PLP of the identified PLP group, and providing the broadcasting service.