Broadcast Receiver NRT Service Decompression via FLUTE Signaling
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Solution Overview
Problem
Conventional broadcast receivers are unable to receive and process non-real time (NRT) services, which are compressed into a single file, limiting their ability to provide a variety of services to users.
Innovation Solution
A method and broadcast receiver that decompresses NRT services by receiving signaling information through a File Delivery over Unidirectional Transport (FLUTE) session, identifying and executing content items within compressed files, including an entry file, using ZIP format compression and File Delivery Table (FDT) signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-real time services are compressed into a single file for efficient transmission, then transmission efficiency is improved, but the ability to identify and process entry files correctly deteriorates
Solution Approach 1:
The patent segments the compressed file into multiple files within the compression container, with specific files marked as entry files. This allows the system to maintain compression efficiency while enabling correct identification and processing of entry files through the segmentation information stored in the compression container.
Solution Approach 2:
The patent introduces a compression container as an intermediary structure that holds both the compressed files and the segmentation information. This intermediary enables the broadcast receiver to correctly identify entry files without compromising the compression efficiency, by providing the necessary metadata about file relationships and entry file designations.
2Device complexity
If conventional broadcast receivers are used, then device simplicity is maintained, but the ability to process non-real time services deteriorates
Solution Approach 1:
The patent enables the broadcast receiver to handle both conventional real-time services and non-real time services through a unified architecture. By integrating the ability to process compressed files with entry file identification into the existing receiver framework, the device gains versatility for handling multiple service types without requiring completely separate processing paths.
Data Source
AI summary
A method of processing a non-real time service of a broadcast receiver, which receives and processes a service being transmitted in non-real time, and a broadcast receiver are disclosed. Herein, the method of processing a non-real time service in a broadcast receiver includes receiving in non-real time first signaling information including access information of a content item and second signaling information including detail information of the content item, receiving in non-real time a file belonging to the content item by accessing to a FLUTE session transmitting the content item, wherein the file corresponds to a compressed file that has one or more files including an entry file compressed therein, and decompressing the compressed file and then executing the content item referring to information on the entry file.