Media Abstraction Layer for Multimedia Packet QoS Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multimedia service technologies face challenges in efficiently managing Quality of Service (QoS) for multimedia data packets, particularly in recognizing the varying importance of packets, which hinders effective QoS control in routers and increases processing burdens.
Innovation Solution
A Media Abstraction Layer (MAL) is introduced to abstract multimedia data information, enabling priority and resource reservation information to be inserted into IP headers, allowing network entities to adaptively manage packet forwarding based on media classifier and label information, simplifying header processing and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If header data for identifying packet importance is read after 5 tuples in IPv6, then packet importance can be identified, but processing time increases and protocol layer independence is violated
Solution Approach 1:
The patent extracts the packet importance identification function from the lower network layer (IP header processing) and moves it to the upper application layer through MAL information. This allows routers to forward packets based on MAL classifiers without needing to parse detailed header data, thereby reducing processing time while maintaining the ability to identify packet importance.
Solution Approach 2:
The patent introduces MAL (Media Abstraction Layer) information as an intermediary between the application layer and network layer. The MAL classifier acts as a mediator that provides packet importance information to routers without requiring them to process detailed header data, thus resolving the contradiction between accurate identification and fast processing.
2Reliability
If per-flow QoS scheme is implemented with resource reservation per stream, then QoS control is improved, but interface complexity between media layer and network layer increases
Solution Approach 1:
The patent creates a universal MAL information structure that can handle multiple QoS schemes (per-class and per-flow) through a single interface. The MAL classifier provides a unified mechanism that works across different QoS paradigms, reducing interface complexity while maintaining reliable QoS control.
Solution Approach 2:
The MAL layer performs self-service by automatically generating and managing MAL information and classifiers without requiring complex manual configuration or tight coupling between media and network layers. This autonomous operation simplifies the interface while maintaining effective QoS control.
3Measurement precision
If detailed header parsing is performed to identify packet importance, then accurate QoS control is achieved, but router processing burden increases
Solution Approach 1:
The patent extracts the computationally intensive header parsing operation from routers and relocates it to endpoint devices that generate MAL information. Routers only need to read the pre-computed MAL classifier, which provides packet importance information without requiring detailed header analysis, thus maintaining accuracy while improving processing efficiency.
Solution Approach 2:
The MAL information and classifiers are prepared in advance at the source device before packets enter the network. This preliminary action allows routers to make forwarding decisions based on pre-processed information, eliminating the need for real-time detailed header parsing and thereby improving processing efficiency without sacrificing recognition accuracy.
Data Source
AI summary
A method and an apparatus for transmitting a multimedia data packet are provided. The method includes generating Media Abstraction Layer (MAL) information for abstracting information on the multimedia data to be transmitted, generating a multimedia data packet including said MAL information, and transmitting the generated multimedia data packet to a network entity.