QoE Reporting With Initial RRC State for Session Analysis
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Solution Overview
Problem
Existing QoE measurement frameworks in communications networks struggle to accurately analyze user experience metrics due to inconsistencies in reporting when UEs transition between RRC states, particularly in RRC_INACTIVE and RRC_CONNECTED states, affecting the interpretation of performance metrics like initial playout delay in streaming applications.
Innovation Solution
Enhancing QoE reports with information about the initial RRC state and RRC resume delay when an application session is initiated, allowing entities to better understand performance impacts and facilitate targeted network optimizations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If QoE measurements are collected without considering RRC state information, then the measurement collection process is simple, but the accuracy of QoE metric analysis is poor
Solution Approach 1:
The patent embeds RRC state information within the existing QoE report structure. The QoE report contains both traditional QoE metrics and the UE's RRC state at session initiation, effectively nesting one type of information within another to enhance analysis accuracy without requiring a completely new collection framework
Solution Approach 2:
The patent captures the RRC state information at the moment of session initiation, performing the measurement and recording action in advance before the actual QoE measurement period begins. This preliminary capture of state information ensures that the relevant context is already available for accurate subsequent analysis
2Productivity
If QoE reports do not include initial state information, then the reporting format remains simple, but network optimization effectiveness is reduced
Solution Approach 1:
The patent makes the QoE report structure multi-functional by incorporating both traditional QoE metrics and RRC state information into a single report format. This universal approach allows the same report to serve both measurement and optimization purposes, enhancing network optimization effectiveness without requiring separate reporting mechanisms
Solution Approach 2:
The patent enables feedback-driven network optimization by providing network entities with the RRC state information at session initiation. This feedback about the initial state allows the network to analyze performance metrics in context and adjust optimization strategies accordingly, improving the effectiveness of network optimization
3Loss of information
If RRC state information is not reported, then the data transmission overhead is low, but the utility of performance data is limited
Solution Approach 1:
The patent applies local quality by selectively adding only the specific RRC state information that is most relevant for QoE analysis at the point of session initiation. Rather than transmitting all possible UE state information, the patent focuses on capturing only the critical RRC state detail that directly impacts QoE metric interpretation, thereby minimizing unnecessary data overhead while maximizing information utility
Data Source
AI summary
A method is performed by a user equipment (1100) for reporting quality of experience information. The method comprises transmitting, to a network node (1200) of a communications network, a quality of experience measurement report comprising quality of experience measurement data associated with an application session between the user equipment (1100) and the communications network. The method further comprises transmitting, to the network node (1200), an indication of a connectivity state of the user equipment (1100) with respect to the communications network when the application session was initiated.