Hybrid Broadcast Receiver Signaling for HD Transmission Efficiency

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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 services and mobile reception, especially in indoor environments.

Innovation Solution

A system that utilizes hybrid broadcasting combining terrestrial networks and the Internet, with advanced signaling methods to manage quality of service and transmit multiple services over a single RF signal bandwidth, employing protocols like MMTP, ROUTE, and DASH for efficient data processing and delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If digital broadcast signals transmit large amounts of video/audio data and additional services, then service functionality is improved, but data transmission efficiency deteriorates

Engineering Contradiction:

Improveamount of video/audio dataVSAvoiddata transmission efficiency

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The broadcast data stream is segmented into multiple transport streams or service flows, allowing parallel transmission of different service components (video, audio, additional data) through separate channels or multiplexed streams, improving overall transmission efficiency while maintaining high data quantity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The broadcast system employs universal transport stream formats and multiplexing protocols that can carry multiple types of data (video, audio, subtitles, interactive services) through a single standardized interface, optimizing transmission efficiency across diverse service types

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Manufacturing precision

If digital broadcast system provides HD images and multichannel audio services, then service quality is improved, but robustness of transmission/reception networks deteriorates

Engineering Contradiction:

Improvequality of HD imagesVSAvoidrobustness of transmission network

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The system dynamically adjusts transmission parameters including error correction coding rates, modulation schemes, and packet prioritization based on network conditions and service requirements, maintaining HD quality while adapting to varying network robustness

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Forward error correction codes and redundant data transmission are implemented beforehand to cushion against potential transmission errors, ensuring robust reception of high-definition content even in challenging network conditions

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If broadcast system supports mobile reception equipment, then network flexibility is improved, but reception reliability deteriorates in indoor environments

Engineering Contradiction:

Improvenetwork flexibilityVSAvoidreception reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system employs dynamic signal processing including adaptive equalization, time-varying error correction, and mobile-optimized modulation schemes that adjust in real-time to changing reception conditions, maintaining reliability across diverse mobile and indoor environments

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Signal processing intermediaries including repeaters, signal conditioners, and protocol adapters are introduced to bridge the gap between broadcast signals and mobile reception equipment, improving reliability in challenging indoor and mobile scenarios

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If multiple broadcast services are transmitted through the same RF signal bandwidth, then transmission flexibility is improved, but data transmission efficiency deteriorates

Engineering Contradiction:

Improvetransmission flexibilityVSAvoiddata transmission efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

Multiple broadcast services are merged into a single multiplexed transport stream using efficient packetization and interleaving techniques, allowing flexible service delivery while minimizing overhead and maximizing data transmission efficiency within the RF bandwidth

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11483597B2Apparatus for receiving broadcast signal and method for receiving broadcast signal

Publication Date: 2022.10.25 LG ELECTRONICS INC

AI summary

A digital receiver for processing a broadcast signal includes a receiving module configured to receive the broadcast signal. Further, the broadcast signal includes service components of a broadcast service, service layer signaling (SLS) information for the broadcast service and a service list table for providing bootstrap information, and the service components include at least one of audio or video data. Further, the bootstrap information is different based on a type of delivery protocol of the SLS information, and the type of delivery protocol corresponds to either a Real-time Object delivery over Unidirectional Transport (ROUTE) protocol or a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP). The digital receiver also includes a processor configured to process the service list table, the SLS information and the service components of the broadcast service.