Service List Table Decoding via Internet Signaling URLs
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Solution Overview
Problem
Current broadcast service signaling systems face challenges in efficiently decoding and delivering service guides, particularly in mobile broadcast environments where broadband access may be limited, leading to incomplete or inaccurate service information.
Innovation Solution
A method for decoding a service guide associated with a bitstream, involving the reception and processing of specific XML elements and attributes such as sltInetUrl, svcInetUrl, serviceld, and broadcastSvcsSignaling, which ensures that service information is accurately retrieved and presented, even when broadcastSvcsSignaling is absent, by utilizing Internet signaling URLs and protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If service guide information is delivered solely through broadcast signaling, then system simplicity is maintained, but service information completeness deteriorates when broadband access is limited
Solution Approach 1:
The service guide information is segmented into two parts: essential service list information transmitted via broadcast signaling, and detailed service information available through broadband Internet signaling. This segmentation allows the system to maintain simplicity for basic service discovery while enabling complete information access when broadband is available.
Solution Approach 2:
The service list table acts as an intermediary between broadcast and broadband signaling systems. It contains references to Internet signaling URLs that point to complete service information, enabling the system to bridge the gap between limited broadcast capacity and comprehensive service guidance requirements.
2Loss of information
If service information is enriched with Internet signaling URLs, then service information completeness is improved, but decoding complexity increases
Solution Approach 1:
The service list table is prepared in advance with embedded Internet signaling URLs and appropriate urlType attributes. This preliminary structuring of information allows receiving devices to efficiently navigate and retrieve complete service information without requiring complex real-time processing or decision-making during decoding.
Solution Approach 2:
The urlType attribute provides local quality differentiation within the service list table structure, indicating whether Internet signaling is available for specific services. This allows receiving devices to apply different decoding strategies selectively - using Internet signaling where available and relying on broadcast information where not available, rather than requiring a uniform complex decoding approach for all services.
Data Source
AI summary
A system for generating, transmitting, providing and/or receiving broadcast service signaling.