QoE Measurement Configuration Handling in SCG Release
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Solution Overview
Problem
Current mobile communication systems face challenges in effectively managing Quality of Experience (QoE) measurements when a secondary cell group (SCG) is released or deactivated, particularly in 5G and beyond 5G systems, which affects the overall performance and user experience.
Innovation Solution
A method involving a user equipment (UE) and a base station that receives application layer measurement configuration information, transmits reports, and discards incomplete measurement reports upon SCG release or deactivation, ensuring seamless QoE measurement handling and reporting across different radio resource control (RRC) configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE maintains QoE measurement configuration information when SCG is released or deactivated, then measurement continuity is improved, but system complexity and resource waste increase due to maintaining unnecessary configurations
Solution Approach 1:
The patent applies preliminary action by having the network proactively indicate whether QoE measurement configuration should be maintained or released in the SCG release/deactivation message. This allows the UE to pre-determine the fate of measurement configurations before actual release, avoiding the need to maintain unnecessary configurations and reducing complexity while ensuring measurement continuity when needed.
Solution Approach 2:
The patent implements dynamics by making the QoE measurement configuration status adaptable - it can be either maintained or released based on network conditions and service requirements. The configuration management is no longer static but dynamically adjusted according to the SCG release/deactivation scenario and network indications, optimizing both reliability and complexity.
2Loss of energy
If the UE releases QoE measurement configuration information when SCG is released or deactivated, then resource efficiency is improved, but measurement data loss occurs affecting QoE reporting accuracy
Solution Approach 1:
The network performs preliminary action by indicating in advance whether measurement configurations should be maintained or released. This allows the UE to efficiently release configurations when instructed, avoiding resource waste, while preserving configurations when the network deems measurement data valuable for QoE reporting accuracy.
Solution Approach 2:
The patent changes the parameter of configuration retention status from a fixed state to a variable state controlled by network indication. This allows the system to optimize resource efficiency by releasing configurations when not needed, while preventing information loss by maintaining configurations when measurement data is still valuable, thus balancing both competing requirements.
3Speed
If the UE transmits incomplete QoE measurement reports, then reporting speed is improved, but measurement accuracy and completeness deteriorate
Solution Approach 1:
The network performs preliminary action by indicating whether to maintain measurement configurations during SCG release. This allows the UE to complete ongoing measurements and transmit complete reports before configuration release, ensuring measurement accuracy while maintaining efficient reporting speed through proactive configuration management.
Data Source
AI summary
A method performed by a user equipment (UE) supporting a master cell group (MCG) and a secondary cell group (SCG) includes receiving at least one application layer measurement configuration information included in first radio resource control (RRC) reconfiguration information for the MCG or in second RRC reconfiguration information for the SCG, transmitting a report message for an application layer measurement report based on the configuration information, receiving a second RRC reconfiguration message for releasing the SCG, informing, for first application layer measurement configuration information included in the second RRC reconfiguration information, an upper layer about release of first application layer measurement configuration information, and discarding a first application layer measurement report associated with the first application layer measurement configuration information that is not yet fully submitted to a lower layer for transmission.