Stream Delivery Function for Mobile Broadcast Error Resilience
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Solution Overview
Problem
Current mobile broadcast systems face challenges in efficiently delivering streams to user terminals and managing stream distribution across different broadcast and interaction channels, particularly in ensuring error resilience and unauthorized access prevention.
Innovation Solution
The proposed solution involves a method and apparatus for stream delivery in a mobile broadcast system, where a stream application function delivers streams with attributes to a stream delivery function, which requests bearer assignment from a broadcast distribution system, and then delivers the stream to a stream delivery client function, incorporating error correction and service protection mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If streams are delivered directly from content creation to terminals via broadcast distribution system, then delivery speed is improved, but error resilience and unauthorized access prevention deteriorate
Solution Approach 1:
The patent introduces a stream delivery function as an intermediary component between the content creation and the terminals. This intermediary performs critical functions including bearer assignment management, error correction processing, and service protection. By placing this mediator in the stream path, the system achieves both fast delivery (maintaining direct broadcast path) and high reliability (through intermediary processing of error correction and security)
Solution Approach 2:
The patent segments the stream delivery process into distinct functional components: content creation, stream delivery function (with bearer assignment, error correction, service protection), and terminal reception. This segmentation allows each component to specialize in specific tasks, enabling the stream delivery function to handle error resilience and security while maintaining overall delivery speed
2Adaptability or versatility
If stream distribution is managed across multiple broadcast and interaction channels, then service versatility is improved, but system complexity deteriorates
Solution Approach 1:
The stream delivery function is designed as a universal component that handles multiple types of streams across different broadcast and interaction channels through a unified interface. It provides bearer assignment, error correction, and service protection functions that work across various channel types, reducing the need for separate handling mechanisms for each channel type
3Reliability
If bearer assignment is implemented for stream delivery, then unauthorized access prevention is improved, but device complexity deteriorates
Solution Approach 1:
The patent implements bearer assignment as a preliminary action before stream delivery begins. The stream delivery function assigns appropriate bearers to streams in advance, ensuring that unauthorized access prevention mechanisms are already in place before content transmission starts. This preliminary configuration simplifies the overall system by handling security upfront rather than requiring continuous complex monitoring during transmission
Data Source
AI summary
A method and system are provided for delivering a stream in a mobile broadcast system that receives stream contents of broadcast services (BCAST) from a content creation and provides the broadcast services to one terminal or one group of terminals via one of a broadcast distribution system (BDS) and an interaction network. The method involves requesting assignment of a bearer in which the stream is to be delivered, assigning a bearer in response to the bearer assignment request, adapting the stream to be appropriate for the assigned bearer, and delivering the adapted stream to the terminal in the assigned bearer.