Wireless QoE Measurement in RRC Idle and Inactive States
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Solution Overview
Problem
Existing wireless communication systems face challenges in collecting Quality of Experience (QoE) measurements when user equipment (UE) is in RRC_INACTIVE or RRC_IDLE states, which hinders network optimization for supporting diverse new services in 6G communication systems.
Innovation Solution
A method and device for QoE measurement collection that allows UE to continue QoE measurements in RRC_INACTIVE or RRC_IDLE states by configuring and reporting QoE measurement information, including service type, area scope, and node identification, using management-based or signaling-based approaches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If UE enters RRC_INACTIVE or RRC_IDLE state to save energy and reduce network complexity, then energy consumption and network complexity are reduced, but QoE measurement collection capability is lost
Solution Approach 1:
The network configures QoE measurement parameters and instructions before releasing the UE to RRC_INACTIVE or RRC_IDLE state. The UE stores these configuration parameters locally and continues to perform QoE measurements autonomously while in the low-power state, ensuring measurement capability is maintained without requiring continuous network connection
Solution Approach 2:
The UE autonomously performs QoE measurements using stored configuration parameters while in RRC_INACTIVE or RRC_IDLE state, without requiring continuous network control or signaling. The UE self-manages the measurement process and can report results when transitioning back to connected state, enabling self-service measurement capability
2Loss of information
If continuous QoE measurement is performed in RRC_CONNECTED state to maintain measurement capability, then QoE measurement collection is maintained, but energy consumption and signaling overhead increase
Solution Approach 1:
The system dynamically adjusts the QoE measurement operation mode based on UE state. In RRC_CONNECTED state, the network can control measurements centrally. When UE transitions to RRC_INACTIVE or RRC_IDLE state, the system switches to autonomous measurement mode using pre-configured parameters, optimizing energy consumption while maintaining measurement capability
Solution Approach 2:
Instead of continuous measurement and reporting in RRC_CONNECTED state, the system uses periodic measurement with event-triggered reporting. The UE performs measurements periodically or based on events while in low-power state, and only establishes connection when measurement results need to be reported, reducing overall energy consumption and signaling overhead
Data Source
AI summary
The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The present disclosure provides a method and apparatus for Quality of Experience (QoE) measurement collection, wherein a method performed by a second node in a wireless communication network is disclosed, the method including: receiving a first message including configuration information for QMC from a first node, wherein the configuration information for QMC includes first indication information, wherein the first indication information indicates whether to perform a QoE measurement and/or whether to use configuration information for the QoE measurement already configured by a second node when a UE enters an idle mode or an inactive mode; and transmitting a second message including the first indication information to the UE.