UE QoS Rule Handling for Shared-QFI Error Correction
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Solution Overview
Problem
Existing error correction methods in wireless communication systems, particularly in 5G networks, fail to adequately address situations where multiple Quality of Service (QoS) flows share the same QoS Flow Indicator (QFI), leading to potential errors and inconsistencies in QoS rule associations.
Innovation Solution
A method and apparatus for managing error situations by allowing User Equipment (UE) to determine if a QoS rule for a Guaranteed Bit Rate (GBR) QoS flow without a QoS flow description is a default rule, and if so, initiate a PDU session release procedure, or if not, send a PDU SESSION MODIFICATION REQUEST message to delete the QoS rule, ensuring appropriate corrective actions based on the QoS rule's status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple QoS flows share the same QFI, then resource utilization is improved, but error correction capability deteriorates
Solution Approach 1:
The patent segments QoS flows by introducing unique identifiers (5QI, ARP, GBR, MBR parameters) to distinguish flows that share the same QFI. This segmentation allows the system to maintain resource utilization benefits of shared QFI while enabling error correction through unique flow identification via the combination of these parameters.
Solution Approach 2:
The patent implements feedback mechanisms where the network monitors QoS flow associations and provides correction information to the UE. When errors in QoS rule associations are detected, the network can send updated QoS rules or modify existing ones, enabling the system to maintain reliability while using shared QFI for resource efficiency.
2Adaptability or versatility
If QoS rule associations are relaxed to allow shared QFI, then system flexibility is improved, but measurement precision deteriorates
Solution Approach 1:
The patent divides the QoS identification process into multiple segments: QFI for high-level flow grouping, and additional parameters (5QI, ARP, GBR, MBR) for precise flow differentiation. This segmented approach maintains system flexibility through shared QFI while restoring measurement precision through the combination of multiple identification parameters.
Solution Approach 2:
The patent applies different identification strategies at different levels: QFI is used for broad flow categorization allowing flexibility, while specific flow parameters provide localized precision for individual flow identification. This local quality approach enables the system to have both flexibility and precision where needed.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Disclosed is a method of managing an error situation in a telecommunication network where there exists a plurality of Quality of Service, QoS, rules having a common QoS Flow Indicator, QFI, comprising the steps of: a User Equipment, UE, connected to the network, determining if a resulting QoS rule for a Guaranteed Bit Rate, GBR, QoS flow, which has no QoS flow description, is a default QoS rule and, if so, then the UE shall initiate a Protocol Data Unit, PDU, session release procedure.