QMC Configuration Across RRC Idle and Inactive UE States
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Solution Overview
Problem
Existing QoE measurement collection methods in RRC_CONNECTED state limit the scope of data collection and accuracy, as they do not support QoE configuration for UEs in RRC_INACTIVE and RRC_IDLE states, which is crucial for managing services like video streaming and virtual reality in NR R18.
Innovation Solution
A method and apparatus for QMC configuration that allows QoE measurement collection in RRC_INACTIVE and RRC_IDLE states by sending QMC-related request information and determining configuration based on UE capability and state, using RRC release messages with encapsulated configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If QMC configuration is only performed for UEs in RRC_CONNECTED state, then the configuration process is simple, but the scope of data collection is limited and accuracy is reduced
Solution Approach 1:
The patent applies dynamics by enabling QMC configuration to adapt to different UE states (RRC_CONNECTED, RRC_INACTIVE, RRC_IDLE). The system dynamically adjusts configuration based on UE state, transitioning from a static connected-state-only approach to a dynamic multi-state approach, thereby improving measurement accuracy without excessive complexity
Solution Approach 2:
The patent implements preliminary action through the network initiating QMC configuration procedures before UE state changes. By preparing and sending configuration messages in advance during state transitions (e.g., transitioning from INACTIVE to CONNECTED), the system ensures continuous and accurate QMC data collection without waiting for connection establishment
2Quantity of substance
If QMC configuration is extended to RRC_INACTIVE and RRC_IDLE states, then the scope of data collection is expanded, but signaling overhead increases
Solution Approach 1:
The patent extracts essential QMC configuration information and sends it through existing state transition messages (RRC Setup Request, RRC Resume Request) rather than creating separate dedicated configuration messages. This extraction approach expands data collection scope while minimizing additional signaling overhead by reusing existing message frameworks
Solution Approach 2:
The patent applies universality by making existing RRC messages serve multiple functions: they not only handle connection establishment but also carry QMC configuration information. This multi-functionality allows the system to expand QMC data collection to INACTIVE and IDLE states without proportionally increasing signaling overhead, as the same message infrastructure is reused
3Productivity
If QMC configuration is performed for all UE states, then service optimization is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by triggering QMC configuration procedures at specific state transition moments (e.g., when UE transitions from INACTIVE to CONNECTED). Rather than maintaining continuous configuration processes that would consume power, the system periodically activates configuration only when state changes occur, balancing service optimization with power conservation
Solution Approach 2:
The patent applies self-service by leveraging UE-initiated state transition messages (RRC Setup Request, RRC Resume Request) to carry QMC configuration information. The UE's own state change actions trigger the configuration process, reducing the need for network-initiated procedures that would consume additional network and UE power. The system uses the UE's natural state transition behavior to drive configuration without extra energy expenditure
Data Source
AI summary
A method for quality of experience measurement collection (QMC) configuration, executed by a first node, includes: sending a first message to a second node, in which the first message comprises QMC-related request information; receiving a second message sent by the second node in response to the first message; and determining, based on the second message, whether to perform the QMC configuration for a user equipment (UE), in which the UE is in at least one of a radio resource control inactive (RRC_INACTIVE) state or a radio resource control idle (RRC_IDLE) state.