Multimedia Transport Characteristics via MPU Segmentation
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Solution Overview
Problem
In dynamic network environments, especially in mobile communication networks, existing resource reservation protocols struggle to effectively guarantee Quality of Service (QoS) for multimedia services due to changing network conditions and resource sharing among multiple users, making it difficult to maintain reserved resources and ensure seamless service delivery.
Innovation Solution
The method involves creating and delivering transport characteristics of multimedia data in units of Media Processing Units (MPUs), with additional flags indicating the presence of these characteristics, allowing for more granular QoS control and resource reservation in a system supporting Internet protocol-based multimedia services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource reservation protocol is executed for entire multimedia content, then QoS can be guaranteed in stable network environments, but it cannot adapt to dynamically changing network conditions in mobile networks
Solution Approach 1:
The patent segments multimedia content into smaller Media Processing Unit (MPU) groups, where each group can have its own transport characteristics and QoS parameters. This allows granular control of QoS for different segments, enabling adaptation to changing network conditions while maintaining reliability for each segment independently.
Solution Approach 2:
The patent introduces dynamic QoS control by allowing transport characteristics to be defined and modified for each MPU group rather than for the entire content. This dynamic approach enables the system to adapt to varying network conditions in mobile environments while maintaining service quality.
2Productivity
If multimedia data is delivered in large units, then transmission efficiency is improved, but QoS control granularity is reduced in dynamic environments
Solution Approach 1:
The patent divides multimedia data into MPU groups of manageable size, balancing transmission efficiency with QoS control granularity. Each MPU group is small enough to allow independent QoS management but large enough to maintain efficient transmission, resolving the contradiction between these two requirements.
3Reliability
If end-to-end resource reservation is implemented, then QoS can be guaranteed for the entire service session, but it cannot be embodied in open Internet environments
Solution Approach 1:
The patent enables QoS control at the MPU group level, which can be implemented in open Internet environments without requiring end-to-end resource reservation for the entire service session. This segmented approach allows QoS mechanisms to function in distributed Internet environments while maintaining reliability.
Data Source
AI summary
There are provided a method and apparatus for delivering transport characteristics of multimedia data. According to an aspect of the present invention, transport characteristics of media data that can be divided in a unit of a Media Processing Unit (MPU) are created in a unit of a predetermined number of MPUs, the created transport characteristics and a flag indicating presence or absence of the created transport characteristics are inserted into the media data, and the resultant media data is delivered. Accordingly, by using transport characteristics in units of media data unit groups, each media data unit corresponding to a short time length, it is possible to effectively control Quality of Service (QoS) in a dynamically changing transport environment, like a mobile network.