Signaling Template and Differential Information for Bandwidth Efficiency
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Solution Overview
Problem
The existing distribution systems for signaling information in content reception and reproduction processing, particularly in digital broadcasting, face inefficiencies due to the large data size of text-based signaling information and the increased processing load on servers, leading to compressed transmission bandwidth and delayed content start times.
Innovation Solution
A method involving the use of signaling templates and differential information, where continuously available information is distributed as templates and differential updates are applied to generate signaling information, reducing data size and processing load, specifically in IP transmission systems using XML or LLS/SCS signaling templates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signaling information is repeatedly distributed at short intervals to enable timely content reception, then the responsiveness and reliability of content delivery is improved, but the processing load on the distribution server increases and transmission bandwidth is compressed
Solution Approach 1:
The signaling information is segmented into two parts: signaling templates (distributed once or infrequently) and differential information (distributed repeatedly). This segmentation allows the bulk of the data to be transmitted less frequently while still enabling timely updates, thus improving bandwidth efficiency without sacrificing responsiveness.
Solution Approach 2:
The signaling templates are prepared and distributed in advance as a foundation. When updates are needed, only the differential information is transmitted and applied to the existing templates, eliminating the need to retransmit the entire signaling information and reducing the processing load on the server.
2Reliability
If signaling information is distributed in full text format to ensure complete information delivery, then the reliability of information transmission is improved, but the data size increases and compresses transmission bandwidth
Solution Approach 1:
The static or slowly changing portions of the signaling information are extracted and formed into templates that are distributed separately. Only the changing portions (differential information) are transmitted in the repeated updates, significantly reducing the data size while ensuring that all necessary information is delivered through the combination of templates and differentials.
Data Source
AI summary
There is provided a reception device including a signaling template acquisition unit for acquiring a LLS signaling template in order to generate LLS signaling information transmitted in LLS and a SCS signaling template in order to generate SCS signaling information transmitted in SCS, a differential information acquisition unit for acquiring LLS differential information applied to the LLS signaling template to generate the LLS signaling information, and SCS differential information applied to the SCS signaling template to generate the SCS signaling information, and a signaling information generation unit for applying the LLS differential information to the LLS signaling template thereby to generate the LLS signaling information, and applying the SCS differential information to the SCS signaling template thereby to generate the SCS signaling information.