PDU Set Congestion Marking for Accurate Wireless Bitrate Allocation
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing congestion based on packet data unit (PDU) sets, leading to inappropriate bitrate adjustments that can degrade user experience.
Innovation Solution
Adjusting the congestion marking policy based on PDU set-specific features such as size, delay budget, pacing, deadline, and quality of service parameters to optimize congestion indication and bitrate allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If congestion marking is applied uniformly to all PDUs without considering PDU set-specific features, then the network entity can simplify processing, but the congestion indication becomes inappropriate and degrades user experience
Solution Approach 1:
The patent applies different congestion marking strategies to different PDU sets based on their specific features (size, delay budget, pacing, deadline). Instead of uniform treatment, the network entity adjusts marking behavior locally for each PDU set according to its characteristics, thereby improving congestion indication accuracy without significantly complicating the overall processing architecture.
Solution Approach 2:
The congestion marking policy is made dynamic by adjusting it based on real-time PDU set features. The network entity modifies marking decisions according to varying parameters such as PDU set size, delay budget, pacing information, and deadlines, enabling adaptive congestion management that responds to changing network conditions and traffic patterns.
2Reliability
If the network entity adjusts congestion marking based on multiple PDU set-specific features, then congestion indication accuracy improves, but the processing complexity increases
Solution Approach 1:
The patent segments the PDU stream into distinct PDU sets and processes each set according to its specific features. By organizing the processing logic around discrete PDU set boundaries and their individual characteristics, the network entity can manage complexity systematically - handling each segment independently based on its properties rather than processing all PDUs as a homogeneous mass.
3Device complexity
If inappropriate congestion indications are sent, then the network entity can maintain simple marking policies, but bitrate allocation becomes inefficient and user experience deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the network entity monitors PDU set features and adjusts congestion marking accordingly. This feedback loop enables the system to learn from actual traffic patterns and network conditions, optimizing bitrate allocation decisions based on real-time information about PDU set characteristics without requiring overly complex pre-programmed policies.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Techniques described herein may enable a network entity to determine whether to indicate, to a user equipment (UE), that congestion is experienced based on one or more features of a packet data unit (PDU) set. For example, the network entity may adjust a marking policy associated with the PDU set based on a PDU set size, a PDU set delay budget (PSDB), whether pacing is used to transmit the PDU set, a deadline associated with the PDU set, and the like. The network entity may receive the features of the PDU set from a management entity, such as an application server, via a quality of service (QoS) profile.