Broadcast Signal Reception Device Firmware Update Filtering
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Solution Overview
Problem
Digital broadcast systems face challenges in providing firmware updates to mobile devices and vehicle systems using terrestrial broadcast networks, as existing technologies lack efficient methods for targeted service delivery and filtering based on device specifications.
Innovation Solution
A broadcast signal reception method and device that parse service list table (SLT) and service layer signaling (SLS) information to provide data casting services, including firmware updates, by determining the target device type and filtering updates based on manufacturer, model, and software version information, ensuring only necessary updates are applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If firmware updates are broadcast to all devices through terrestrial broadcast network, then update delivery coverage is improved, but unnecessary updates are transmitted to non-target devices causing waste of bandwidth and processing resources
Solution Approach 1:
The patent applies local quality by embedding device-specific identification information (manufacturer ID, model ID, version ID) within the broadcast signal structure. This allows each receiving device to locally evaluate whether the broadcasted firmware update applies to it, enabling selective processing without requiring centralized control or additional communication overhead.
Solution Approach 2:
The patent implements preliminary action by pre-organizing firmware update data into structured packets containing identification fields that match device specifications. The broadcast system prepares targeted update packets in advance, allowing receiving devices to quickly determine applicability through simple field comparison rather than analyzing entire firmware images.
2Measurement precision
If broadcast signal includes detailed device identification information for targeted updates, then update accuracy is improved, but signal structure complexity increases
Solution Approach 1:
The patent segments the firmware update broadcast signal into distinct functional fields: device identification fields (manufacturer ID, model ID, version ID), firmware data fields, and control fields. This segmentation allows receiving devices to parse only the identification portion first to determine relevance, avoiding the need to process complex entire signal structures for all devices.
Solution Approach 2:
Instead of having devices broadcast their identification information and wait for matched updates, the patent inverts the approach by having the broadcast system embed identification filters within the update packets themselves. Devices passively receive and self-evaluate against embedded criteria, reversing the traditional active-query model into a passive-filter model.
3Productivity
If all mobile devices and vehicle systems receive firmware update broadcasts, then service coverage is improved, but processing overhead and unnecessary updates increase
Solution Approach 1:
The patent implements preliminary action by pre-organizing firmware update data into structured packets containing identification fields that match device specifications. The broadcast system prepares targeted update packets in advance, allowing receiving devices to quickly determine applicability through simple field comparison rather than analyzing entire firmware images.
Solution Approach 2:
The patent enables self-service by allowing each receiving device to autonomously evaluate the embedded identification information against its own device parameters and independently determine whether to process the update. This eliminates the need for centralized device registration, query-response protocols, or server-mediated matching, significantly reducing processing overhead.
Data Source
AI summary
A broadcast signal reception method is disclosed. According to an embodiment of the present invention, the broadcast signal reception method comprises the steps of: receiving a first broadcast signal through a first channel; parsing service list table (SLT) information included in the first broadcast signal; parsing service layer signaling (SLS) information received on the basis of the SLT; and providing a broadcast service on the basis of the SLS information.