IP Network QoS Marking via Application Category Detection
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Solution Overview
Problem
Existing QoS systems in IP networks face challenges due to resource-intensive packet inspection and rigid rules, making it difficult to dynamically adjust QoS processing for different applications, leading to inefficiencies in computational and network resources.
Innovation Solution
Implementing multi-stage processing for selective packet inspection to categorize IP network traffic dynamically, marking packets with markers indicative of QoS based on application categories, allowing for efficient upstream and downstream QoS management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet inspection is performed to categorize applications for QoS, then QoS service differentiation is improved, but computational resource consumption increases
Solution Approach 1:
The patent segments packet inspection into multiple stages: initial inspection of packet headers to identify application category, followed by selective deeper inspection only for packets requiring QoS processing. This segmentation reduces overall computational resource consumption while maintaining QoS service differentiation capability.
Solution Approach 2:
The patent applies partial action by performing inspection on only a subset of packets rather than all packets. Specifically, it inspects packets to identify application categories and insert markers, but avoids full-depth inspection of every packet, thereby reducing computational overhead while still achieving effective QoS differentiation.
2Stability of the object's composition
If QoS rules are made rigid to ensure consistent service, then service stability is improved, but adaptability to different applications deteriorates
Solution Approach 1:
The patent implements dynamic QoS processing by detecting application categories from packet content and dynamically inserting appropriate QoS markers. This allows the system to adapt to different applications dynamically while maintaining stable QoS service delivery through consistent marker-based processing rules.
Solution Approach 2:
The patent changes the parameter of packet processing by inserting different QoS markers based on detected application categories. This parameter change enables the system to adapt to various applications (video, audio, data) while maintaining stable service through consistent marker interpretation and processing rules at network nodes.
3Productivity
If multi-stage processing is implemented for packet categorization, then processing efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the QoS processing function into distinct modules: packet reception, application category detection, marker insertion, and transmission. This segmentation improves processing efficiency by allowing specialized handling at each stage while managing device complexity through modular design where each component has a specific, simplified function.
Data Source
AI summary
The technical solutions can include a transmitter of a source device providing access to an application. The transmitter can be configured to detect a category of an application from a first packet to be transmitted from the source, determine a quality of service (QOS) for the application based on the category of the application, mark the first packet with a marker corresponding to the QoS and schedule transmission of the first packet based on the QoS to a destination device. The technical solutions can include a receiver of the destination device configured to identify the QoS set by the transmitter using the marker of the first packet received from the transmitter, mark a second packet to be transmitted from the destination device to the source device using the marker of the first packet, and schedule transmission of the second packet based at least on the QoS to the transmitter.