RRC Layer QoE Measurement Release Timing
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Solution Overview
Problem
Existing solutions for Quality of Experience (QoE) measurements in cellular communications networks interrupt measurements when a user equipment (UE) exits the measurement area during a session, which does not align with requirements and can lead to incomplete data collection.
Innovation Solution
Implementing a mechanism where the Radio Resource Control (RRC) layer delays the release of QoE measurement configurations until the associated session ends, ensuring that measurements continue even if the UE moves outside the measurement area, by using session feedback indications and handover procedures to manage measurement configuration releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network releases QoE measurement configuration when the UE exits the measurement area, then the network can free resources and reduce overhead, but the measurements are interrupted and data collection becomes incomplete
Solution Approach 1:
The patent implements a feedback mechanism where the UE sends session feedback indications to the network node to inform about ongoing sessions. The network uses this feedback to determine whether to release QoE measurement configuration, ensuring measurements continue until the session actually ends rather than being prematurely terminated when the UE exits the measurement area.
Solution Approach 2:
The patent applies preliminary action by having the UE indicate session status in advance through session feedback indications. The network node uses this advance information to make informed decisions about when to release measurement configuration, preventing premature release while still allowing timely resource management.
2Reliability
If the network continues QoE measurements after the UE exits the measurement area, then measurement data integrity is maintained, but network resources are consumed unnecessarily
Solution Approach 1:
The network node uses session feedback indications from the UE to dynamically adjust measurement continuation. When feedback indicates an ongoing session, the network maintains measurements despite UE mobility. When the session ends, the network releases configuration, optimizing resource consumption based on actual session status rather than continuous measurement.
3Ease of operation
If the RRC layer immediately releases QoE measurement configuration upon receiving network release indication, then the release process is simple and fast, but measurements may be interrupted during ongoing sessions
Solution Approach 1:
The patent enhances the release process by incorporating session feedback indications. The RRC layer uses this feedback information to determine whether immediate release is appropriate or if measurement continuation should be maintained, adding a layer of intelligence to the release decision while keeping the overall process simple.
Solution Approach 2:
The patent introduces dynamics to the release process by making the release decision conditional rather than immediate. The RRC layer dynamically adjusts its behavior based on session feedback indications, allowing flexible control over measurement continuation while maintaining operational simplicity.
Data Source
AI summary
Systems and methods are disclosed for mobility handling for Quality of Experience (QoE) measurements in a cellular communications system. In one embodiment, a method performed by a User Equipment (UE) comprises receiving, at a Radio Resource Control (RRC) layer of the UE, an indication to release a QoE measurement configuration from a network node. The method further comprises either: (a) refraining, at the RRC layer of the UE, from sending a release request for the QoE measurement configuration to an application layer of the UE until a session associated with the QoE measurement configuration has ended or (b) sending, from the RRC layer of the UE to the application layer of the UE, a request to release the QoE measurement configuration that indicates that the application layer is to release the QoE measurement configuration once the session associated with the QoE measurement configuration has ended.