Broadcast Service Continuity Across IP Platforms
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In digital broadcasting systems like DVB-H CBMS, service continuity is disrupted when a terminal moves from one IP platform to another because each platform has independent IP addresses, making it difficult for the terminal to recognize and continue receiving the same broadcast service.
Innovation Solution
Implementing a mechanism where cooperating IP platforms share a common IP address range and use a cooperating platform identifier to signal this relationship, allowing terminals to determine if a broadcast service is common across platforms and seamlessly switch reception to maintain service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If each IP platform uses independent IP addresses, then platform independence and management simplicity are improved, but service continuity across platforms deteriorates
Solution Approach 1:
The patent changes the IP address parameter from being platform-specific to being common across multiple platforms. By allowing the same IP address to be used on multiple IP platforms simultaneously, the system enables terminals to identify and connect to services across platform boundaries, thus maintaining service continuity while preserving platform independence.
Solution Approach 2:
The patent makes IP addresses universal across different IP platforms. Instead of having IP addresses specific to individual platforms, the same IP address can represent a service on multiple platforms, allowing terminals to access services regardless of which specific platform they are on, thereby achieving multi-platform service continuity.
2Reliability
If IP addresses are shared across multiple platforms, then service continuity is improved, but IP address conflict and platform identification complexity increase
Solution Approach 1:
The patent introduces platform identification information in advance within service information data. Before a terminal needs to access a service, it receives pre-configured information including the platform identifier associated with the service. This preliminary action allows the terminal to correctly identify which platform to connect to without encountering conflicts during actual service access.
Solution Approach 2:
The patent uses service information data as an intermediary that carries platform identification information. Instead of directly managing complex platform-specific IP address mappings, the system uses service information as a mediator to convey the necessary platform identification details to terminals, simplifying the overall system complexity.
3Device complexity
If platforms operate independently without coordination, then system simplicity is improved, but handover capability between platforms deteriorates
Solution Approach 1:
The patent extracts platform identification information from the complex inter-platform coordination problem and embeds it directly within service information data. By taking out the essential identification element and placing it where terminals can easily access it, the system enables handover capability without requiring complex coordinated management between platforms.
Data Source
AI summary
A method and apparatus for receiving a broadcast service in a digital broadcasting system. The method includes receiving, by a reception unit, related information relevant to a common broadcast service being provided in common in at least two Internet Protocol (IP) platforms, from one of the at least two IP platforms; determining, by a mobility management block, whether a currently received broadcast service is the common broadcast service, based on the related information; and continuously receiving the common broadcast service from a remaining IP platform, except for the one of the at least two IP platforms, when the currently received broadcast service is the common broadcast service.