Broadcast Receiver NRT Service Signaling Processing
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Solution Overview
Problem
Current DTV receivers lack the capability to properly receive and process Non-Real Time (NRT) services due to the absence of a means for processing NRT service signaling information, limiting their ability to provide users with various service functions such as push VOD and targeted advertising.
Innovation Solution
A broadcast receiver and method that extracts and processes signaling information using PSI/PSIP tables, constructs a service guide, and accesses FLUTE sessions to receive and store NRT content, enabling proper recognition, reception, and processing of NRT services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If legacy DTV receivers are used, then the device structure remains simple, but the capability to receive and process NRT services is lacking
Solution Approach 1:
The receiver is designed to handle multiple service types (real-time and non-real-time) through a unified architecture. The signaling information processing unit and service guide construction unit enable the receiver to universally process different service types using common components, allowing legacy receivers to gain NRT service capability without complete redesign.
Solution Approach 2:
A signaling information processing unit is introduced as an intermediary component between the incoming broadcast signal and the service execution modules. This unit extracts and processes NRT service signaling information from the broadcast stream, enabling the receiver to understand and handle NRT services without requiring fundamental structural changes to the entire system.
2Adaptability or versatility
If signaling information processing is added to receivers, then NRT service functionality is enabled, but the processing complexity increases
Solution Approach 1:
The signaling information processing function is divided into distinct modular units: a signaling information extraction unit that separates NRT signaling data from the broadcast stream, and a service guide construction unit that organizes the extracted information. This segmentation allows each unit to handle specific tasks independently, reducing overall processing complexity while enabling comprehensive NRT service support.
3Ease of operation
If service guide construction is implemented, then content selection capability is improved, but information processing requirements increase
Solution Approach 1:
The service guide is constructed in advance by the service guide construction unit using signaling information extracted from the broadcast stream. This preliminary construction of the service guide allows content selection to be performed based on pre-organized information, reducing the real-time information processing load during content selection operations while improving ease of use.
Data Source
AI summary
A method for mapping signaling information to announcement information and a broadcast receiver are disclosed herein. A method of providing a Non-Real-Time (NRT) service, the method comprises extracting identification information of first signaling information and second signaling information based upon a program specific information/program and system information protocol (PSI/PSIP) table, receiving the first signaling information and second signaling information based upon the extracted identification information, constructing and displaying a service guide using the received first signaling information, acquiring first content identification information as a content selected from the displayed service guide, accessing a File Delivery over Unidirectional Transport (FLUTE) session using the received second signaling information, acquiring second content identification information matched with the acquired first content identification information from the accessed FLUTE session and receiving and storing one or more file constructing corresponding content based upon the acquired second content identification information.