5GS Packet Classification for PDU Set-Aware QoS Handling
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Solution Overview
Problem
Current 5G telecommunication systems lack a mechanism for classifying packets received at the 5GS to support integrated handling of packets belonging to PDU sets for XR applications, leading to inefficient scheduling and resource wastage due to packet dependencies not being considered.
Innovation Solution
Implementing a method and apparatus for classifying packets based on PDU sets within the 5GS, using packet markings to convey application information, and enhancing QoS policies to ensure integrated packet handling, considering dependencies and media attributes, with support for different media types and levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If packets are handled individually without classification, then the system operation is simple, but resource utilization is inefficient due to packet dependencies not being considered
Solution Approach 1:
The patent segments packets into PDU sets based on their belonging relationships, where each PDU set contains packets that depend on each other. This segmentation allows the system to handle packets as grouped units rather than individual items, improving resource utilization by ensuring complete PDU set delivery while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent performs preliminary classification of packets into PDU sets before transmission scheduling. By pre-identifying which packets belong together in PDU sets and marking them accordingly, the system prepares the packet structure in advance, enabling efficient resource allocation and dependency-aware scheduling without adding complex real-time processing during transmission.
2Reliability
If packets are classified by PDU sets, then integrated packet handling is achieved, but the system complexity increases due to classification mechanisms
Solution Approach 1:
The patent uses packet markings (analogous to color changes) to indicate PDU set membership and dependencies. Each packet is marked with identifiers that reveal its belonging relationships without requiring complex classification algorithms during transmission. This marking mechanism simplifies the complexity by using straightforward identification tags rather than complex classification logic.
Solution Approach 2:
The patent introduces PDU set identifiers as intermediary elements that mediate between individual packets and the QoS handling mechanism. These identifiers act as intermediaries that carry dependency information without requiring the QoS system to directly analyze packet relationships, thus reducing complexity while maintaining reliable integrated handling.
3Reliability
If packet dependencies are considered, then QoS handling is improved, but the processing time increases due to classification requirements
Solution Approach 1:
The patent performs packet classification and PDU set identification in advance, before QoS scheduling decisions are made. By pre-marking packets with their PDU set identifiers and dependency information, the system eliminates the need for time-consuming real-time analysis during QoS handling, thus improving accuracy without significant time penalty.
Solution Approach 2:
The patent enables packets to carry their own classification information through self-marking with PDU set identifiers. Each packet independently contains the information needed to identify its dependencies and belonging relationships, eliminating the need for external classification processing during QoS handling and reducing processing time while maintaining accuracy.
Data Source
AI summary
A method may include receiving, by a traffic ingress entity of a communication network, one or more packets of a traffic flow. The method may also include assigning a classification, by the data reception entity, to each packet of the one or more packets of the traffic flow according to one or more protocol data unit sets to which the packet belongs to. The method may further include mapping the one or more packets of the traffic flow to one or more quality of service flows for quality of service handling of the one or more packets based on the classification assigned to each packet. In addition, the method may include outputting the classification assigned to each packet to a network element for enabling quality of service handling of the one or more packets based on the mapping and one or more quality of service information.