PDU Set Marking for Media Packet Prioritization in 5G
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in providing real-time media services efficiently, as they do not effectively consider the varying importance and interrelationships of media data packets, leading to suboptimal quality of service and resource utilization.
Innovation Solution
The proposed solution involves a method and apparatus that process media packets in units of data units constituting media, using PDU set marking and reporting to identify and prioritize packets based on their importance, allowing for efficient network resource management and quality of service optimization in 5G systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If media packets are processed individually without considering their interrelationships, then processing simplicity is maintained, but quality of service deteriorates due to inability to prioritize important media data
Solution Approach 1:
The patent segments media data into PDU sets that represent logical groupings of related media packets (e.g., packets belonging to the same media access unit). This segmentation allows the system to treat groups of packets as unified entities for prioritization and QoS management, rather than processing each packet independently. The PDU set structure enables efficient identification and handling of related packets while maintaining processing manageability.
Solution Approach 2:
The patent applies preliminary action by marking PDU sets with identification information before transmission. This pre-marking process assigns priority levels and group identifiers to packets in advance, enabling receiving end devices to quickly recognize and prioritize important media data without complex real-time analysis. The marking is performed during packetization, preparing the data structure for efficient QoS handling throughout the transmission path.
2Productivity
If all media packets are treated equally, then resource management simplicity is maintained, but network resource utilization deteriorates due to inability to optimize bandwidth allocation for different media priorities
Solution Approach 1:
The patent implements local quality by assigning different QoS parameters and priority levels to different PDU sets based on their specific characteristics and importance. Instead of uniform treatment, each PDU set receives customized resource allocation and handling policies appropriate to its content and urgency. This allows critical media data to receive preferential treatment in terms of bandwidth allocation, buffering, and error handling, while less critical data uses standard resources.
3Reliability
If PDU set marking and reporting is implemented to identify and prioritize packets, then quality of service improves through effective packet prioritization, but device complexity increases due to additional marking and reporting mechanisms
Solution Approach 1:
The patent merges the QoS marking function with the existing PDU set structure and packetization process. Rather than adding separate marking systems, the identification information is integrated into the PDU set metadata and packet headers that already exist in the media transmission framework. This consolidation achieves QoS differentiation without requiring entirely new marking and reporting infrastructure, reducing the net increase in system complexity.
Data Source
AI summary
A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes performing packet data unit (PDU) session establishment procedure with at least one network entity, receiving, from a media server, PDU set marking information for generating a PDU set reception report, receiving, from the media server, media packets processed based on PDU set, generating the PDU set reception report based on the media packets and the PDU set marking information, and transmitting, to the media server, the PDU set reception report including information on at least one PDU set.