Multi-Modal PDU Discard Synchronization Across Traffic Flows
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing protocol data unit (PDU) discard procedures for multi-modal traffic, particularly in scenarios where different data streams have different discard timers, leading to inefficiencies and potential data loss.
Innovation Solution
Implementing enhanced PDU discard procedures where a user equipment (UE) discards PDUs or PDU sets based on the expiration of a synchronization threshold duration and overhead duration, aligning discard operations across multiple traffic flows with different timers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different discard timers are used for different traffic flows, then each traffic flow can be managed independently according to its specific requirements, but data loss increases and communication efficiency decreases due to lack of coordination between flows
Solution Approach 1:
The patent combines multiple independent discard timer operations into a coordinated discard procedure. When a PDU is discarded in one traffic flow, the system checks for associated PDUs in other traffic flows and discards them simultaneously, merging the discard actions across multiple flows to prevent data loss while maintaining independent timer management.
Solution Approach 2:
The system implements feedback by monitoring the state of PDUs across multiple traffic flows. When a PDU expiration or discard event occurs in one flow, the system provides feedback to other flows with associated PDUs, triggering coordinated discard actions. This feedback mechanism ensures that data loss is prevented while maintaining the benefits of independent timer management.
2Productivity
If different discard timers are used for different traffic flows, then each flow can have optimized timing, but communication efficiency decreases due to uncoordinated discard operations
Solution Approach 1:
The patent merges discard operations across multiple traffic flows by identifying associated PDUs and executing coordinated discard actions. This eliminates redundant processing and uncoordinated operations, improving overall communication efficiency while preserving the optimized timing benefits of individual discard timers.
3Reliability
If synchronized discard operations are implemented across multiple traffic flows, then data loss is reduced and communication efficiency is improved, but system complexity increases due to coordination requirements
Solution Approach 1:
The patent applies preliminary action by establishing association relationships between PDUs in different traffic flows in advance. This pre-configured association information allows the system to quickly identify and coordinate discard operations without complex real-time analysis, reducing system complexity while maintaining synchronized discard functionality and data loss prevention.
4Reliability
If association information is stored for coordinating discard operations, then synchronized discard can be achieved, but memory requirements and system resources increase
Solution Approach 1:
The patent applies local quality by storing association information in a distributed manner across different components or contexts where it is needed, rather than centralizing all association data. This approach reduces peak memory requirements and allows the system to maintain synchronized discard capability while optimizing resource utilization through localized storage of association information.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate multi-modal traffic with a network entity over multiple traffic flows. For example, the UE may communicate a first PDU set via a first traffic flow associated with a first discard timer, and a second PDU set via a second traffic flow associated with a second discard timer. The first PDU set may be associated with the second PDU set in accordance with the multi-modal traffic configuration. In some examples, the UE may discard both the first PDU set and the second PDU set upon expiration of the first discard timer. In some other examples, the UE may determine a value for a second timer based on a synchronization threshold duration and an overhead duration and may discard the second PDU set upon expiration of the second timer.