Multi-Connectivity QoE Reporting Across Coordinated RAN Nodes
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Solution Overview
Problem
The existing framework for Quality of Experience (QoE) measurements in wireless networks, particularly in networks combining LTE and NR, does not adequately address the complexities and granular control required for UEs operating in multi-connectivity scenarios, failing to provide sufficient flexibility and efficiency in data handling and reporting.
Innovation Solution
The proposed solution involves configuring QoE measurements by user equipment (UEs) in wireless networks through methods that facilitate multi-connectivity with first and second radio access network nodes (RANs), allowing for optimized reporting of QoE measurements to preferred or optimum network nodes based on various conditions and criteria, including options for duplicate reporting and data handling across multiple RANs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If QoE measurements are configured for UEs in multi-connectivity scenarios, then measurement reporting capability is improved, but network complexity and configuration overhead increase
Solution Approach 1:
The patent segments the QoE measurement reporting process by introducing separate configuration parameters for different serving cells (primary cell and secondary cell). Each cell can be independently configured with its own QoE measurement settings, allowing the network to selectively enable measurements on specific cells rather than uniformly across all cells, thus reducing overall network complexity while maintaining measurement precision where needed.
Solution Approach 2:
The patent implements dynamic QoE measurement configuration where the network can adaptively enable or disable measurements based on current radio conditions, UE capabilities, and network load. The configuration allows flexible activation/deactivation of QoE measurements on different cells and for different UE types, enabling the system to optimize between measurement precision and network complexity in real-time.
2Reliability
If duplicate QoE measurement reports are transmitted to multiple RAN nodes, then reliability of QoE data collection is improved, but signaling overhead and network resources increase
Solution Approach 1:
The patent applies local quality by allowing different QoE measurement reporting configurations for different serving cells. The network can specify that duplicate reports be sent to certain cells while omitting them from others, based on local conditions such as cell importance, load, and reliability requirements. This selective approach ensures reliable data collection where needed while minimizing signaling overhead in other areas.
Solution Approach 2:
The patent introduces configurable parameters that control the duplication behavior of QoE measurement reports. These parameters allow the network to dynamically adjust the level of redundancy (no duplication, partial duplication, or full duplication) based on current network conditions, thereby balancing reliability requirements against signaling overhead and resource consumption.
Data Source
AI summary
Embodiments include methods, for a first radio access network node (RNN) in a wireless network, for configuring quality of experience (QoE) measurements by user equipment (UEs). Such methods include sending, to a UE connected to the first RNN, a QoE measurement configuration for one or more services provided by an application layer of the UE; and sending, to the UE, a configuration for access-layer multi-connectivity of the UE with a second RNN in the wireless network. Such methods also include receiving one or more QoE measurement reports, in accordance with the QoE measurement configuration, from at least one of the UE and the second RNN. The QoE measurement reports include measurements made by the UE while in multi-connectivity with the first and second RNNs. Embodiments also include complementary methods for a second RNN and a UE, as well as RNNs and UEs configured to perform such methods.