QoE Measurement Collection in Dual Connectivity RAN Overload
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing Quality of Experience (QoE) measurement collection and reporting, particularly in dual connectivity architectures, where user equipment is connected to two RAN nodes, and issues arise in handling RAN overload, maintaining service continuity during mobility, and aligning Minimized Drive Test (MDT) with QoE.
Innovation Solution
The proposed solution involves configuring and reporting QoE measurements through a separate QoE Measurement Collection (QMC) function, managing RAN overload by pausing or resuming reporting, and aligning MDT with QoE by timestamping and Trace ID correlation, all within a dual connectivity framework.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoE measurement collection and reporting is implemented in dual connectivity architecture, then user experience quality is improved, but system complexity and overhead increase
Solution Approach 1:
The patent segments QoE measurement collection into separate signaling-based and management-based procedures, with distinct configuration, activation, and deactivation workflows. This segmentation allows independent optimization of each collection mode and reduces overall system complexity by handling different QoE scenarios through specialized procedures.
Solution Approach 2:
The patent introduces QoE measurement collection function as an intermediary layer between the radio access network and the core network. This intermediary handles the complexity of dual connectivity QoE management by providing standardized interfaces and procedures, isolating the complexity from both the radio access and core network components.
2Measurement precision
If QoE measurement reporting is continuous, then measurement accuracy is improved, but network overload increases
Solution Approach 1:
The patent implements periodic QoE measurement reporting where the network can configure reporting intervals and trigger conditions. Measurements are collected continuously but reported periodically or event-driven, maintaining measurement accuracy while reducing reporting overhead to manageable levels that prevent network overload.
Solution Approach 2:
The patent applies partial action by selectively collecting and reporting QoE measurements based on configured criteria, thresholds, and triggers. Not all measurements are reported equally - only those meeting specific conditions are transmitted, reducing overall reporting volume while maintaining necessary measurement precision for quality assessment.
3Adaptability or versatility
If QoE measurement collection is activated for all UEs, then coverage is improved, but energy consumption increases
Solution Approach 1:
The patent enables the network to configure QoE measurement collection with local quality variations - different UEs can have different measurement configurations, reporting intervals, and activation conditions based on their specific service requirements, channel conditions, and QoE priorities. This selective approach ensures coverage for all UEs while optimizing energy consumption for each individual device.
Solution Approach 2:
The patent implements dynamic QoE measurement collection where configuration parameters such as reporting intervals, measurement filters, and activation conditions can be adjusted in real-time based on UE state, network conditions, and service requirements. This dynamic adaptation allows the system to maintain comprehensive coverage while minimizing energy consumption by adjusting measurement activity to actual needs.
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AI summary
This document is directed to methods, systems, and devices related to wireless communication, and more specifically, to determine QoE measurement collection be configured and reported, to handle cases in RAN overload situation, to align MDT with QoE, and to maintain service continuity in mobility. A method of wireless communication, comprising transmitting, from Operations, Administration, and Maintenance (OAM), to a first network node, a Quality of Experience (QoE) Measurement Collection (QMC) configuration; wherein the first QMC configuration contains a plurality of QoE configuration; wherein the plurality QoE configuration further comprising alignment information; wherein the alignment information contains a trace ID list where each trace ID correspond to a Minimized Drive Test (MDT) at the first network node.