Broadcast Receiving Device NRT Service Signaling Segmentation
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Solution Overview
Problem
Existing digital television (DTV) systems struggle to efficiently receive and process non-real-time (NRT) services without interfering with existing receivers, which are designed for real-time (RT) services, and lack the capability to provide diverse and complex NRT content effectively.
Innovation Solution
A method for a broadcast receiving device that includes receiving a broadcast table and service signaling data, determining the consumption model of a service object, receiving content items based on the service signaling data, and displaying guides for NRT services, allowing for the identification and control of content items, while transmitting NRT services with additional information and linkage details within the broadcast table or signaling data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If NRT service signaling data is added to the broadcast system, then the capability to provide diverse NRT content is improved, but the complexity of the receiving system increases
Solution Approach 1:
The NRT service signaling data is segmented into separate table structures (NRT service table, NRT content table, NRT information table) that can be independently processed. This segmentation allows the receiver to handle NRT services separately from RT services, reducing overall system complexity while maintaining diverse content capability
Solution Approach 2:
A service manager component is introduced as an intermediary that specifically handles NRT service signaling data processing. This intermediary layer manages the complexity of NRT content delivery without requiring the entire receiving system to be redesigned, thus maintaining versatility while controlling complexity
2Adaptability or versatility
If NRT service signaling data is transmitted through existing broadcast tables, then backward compatibility with existing receivers is maintained, but the ability to provide complex NRT information is limited
Solution Approach 1:
NRT service signaling data is nested within the existing broadcast table structure as additional fields and tables. The NRT service table, NRT content table, and NRT information table are integrated into the existing EPG and service signaling framework, allowing complex NRT information to be conveyed while maintaining compatibility with existing receivers that ignore the additional nested data
Solution Approach 2:
The broadcast table structure is designed to serve multiple functions simultaneously - it continues to provide traditional EPG information for RT services while also carrying NRT service signaling data. This multi-functionality allows the same infrastructure to support both backward compatibility and advanced NRT content delivery
3Productivity
If consumption model determination is implemented for NRT services, then content delivery efficiency is improved, but the processing complexity at the receiver increases
Solution Approach 1:
The consumption model is determined in advance based on service signaling data before actual content delivery. This preliminary determination allows the system to pre-configure content delivery parameters and buffer allocation, improving efficiency by avoiding runtime decisions while keeping processing complexity manageable through automated model selection
Data Source
AI summary
A method of a broadcast receiving device to receive broadcast service includes: receiving a broadcast table; receiving service signaling data corresponding to a service object; determining a consumption model of the service object on the basis of the service signaling data; receiving a content item configuring the service object on the basis of the service signaling data when the consumption model is a predetermined consumption model; displaying a guide on content on the basis of the broadcast table or the service signaling data; identifying one of the received content item according to an additional information request on the content; and controlling the guide on the basis of the identified content item.