Service Guide Information Encoding for Digital Broadcast Efficiency
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Solution Overview
Problem
Digital broadcast systems face challenges in providing high-definition images and multiple audio services due to limitations in data transmission efficiency, network robustness, and mobility, especially in mobile reception environments.
Innovation Solution
A method for transmitting and receiving service guide information that includes generating, encoding, and transmitting service guide data with capability elements indicating required rendering capabilities, such as HEVC video, HDR, and immersive audio, to ensure optimal data processing and transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If digital broadcast signal transmission is implemented to provide high definition images and multiple audio services, then service quality and data capacity are improved, but data transmission efficiency and network robustness deteriorate
Solution Approach 1:
The service guide information is segmented into capability elements that are selectively transmitted based on receiving device capabilities. This allows the system to divide the large amount of service information into manageable, capability-specific segments, improving transmission efficiency while maintaining high data capacity for devices that can process them.
Solution Approach 2:
The system transmits only the necessary portion of service guide information based on the receiving device's capabilities rather than transmitting all possible service data. This partial action approach improves transmission efficiency by avoiding unnecessary data transmission while still providing high-quality services to capable devices.
2Quantity of substance
If service guide information includes detailed capability elements for high-quality rendering, then service quality is improved, but information transmission complexity increases
Solution Approach 1:
The service guide information structure uses local quality by providing detailed capability elements only where necessary. Each capability element is structured to provide detailed information about specific rendering capabilities (video, audio, subtitles) only for services that require those capabilities, reducing overall structural complexity while maintaining service quality.
Solution Approach 2:
The complex service information is segmented into distinct capability elements (video capability, audio capability, subtitle capability, etc.), each with its own structured format. This segmentation reduces information structure complexity by organizing detailed service information into manageable, standardized segments that are easier to process and transmit.
3Adaptability or versatility
If comprehensive service guide information is transmitted to support mobile reception, then service versatility is improved, but transmission robustness deteriorates
Solution Approach 1:
The system transmits capability elements selectively based on device type and reception environment rather than transmitting all service information universally. For mobile reception, only the necessary capability elements relevant to mobile devices are transmitted, reducing transmission load and improving robustness while maintaining service versatility for mobile applications.
Data Source
AI summary
One embodiment of the present invention provides a method and a device for transmitting and receiving service guide information. The service guide information transmission method, according to one embodiment of the present invention, comprises the steps of: generating service guide information including information on broadcast service and content; encoding the generated service guide information; and transmitting the encoded service guide information.