Multi-Connectivity QoE Reporting Path Switching
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Solution Overview
Problem
Current technologies lack effective mechanisms for handling upper layer indications and QoE reports in multi-connectivity scenarios, particularly when one path in multi-connectivity cannot be used due to node overload or radio link failure.
Innovation Solution
The proposed solution involves methods and systems that enable a UE Access Stratum operating in multi-connectivity to send upper layer indications and QoE reports to the RAN, even when one path is unavailable, by transmitting these reports to another network node in the multi-connectivity configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If QoE reports are sent only through a single network path in multi-connectivity, then the signaling overhead is reduced, but the reliability of reporting deteriorates when that path becomes unavailable
Solution Approach 1:
The patent segments the reporting function by allowing different QoE reports to be sent through different network paths (master node and secondary node). When one path is unavailable, the UE can segment the reporting task and use the alternative path, thus maintaining reliability without significantly increasing overall signaling overhead.
Solution Approach 2:
The patent adds a spatial dimension to reporting by enabling multi-path reporting through different network nodes. Instead of a single-dimensional reporting path, the system now operates in multiple dimensions (different nodes and paths), allowing reports to reach the network through alternative routes when one path fails.
2Loss of information
If the UE switches reporting paths when one becomes unavailable, then the completeness of QoE data improves, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple reporting paths and their associated parameters before reporting is needed. The UE is provided with configuration information for both master node and secondary node reporting, including when and how to switch paths. This eliminates the need for complex real-time decision-making during actual reporting operations.
Solution Approach 2:
The system implements feedback mechanisms where the network provides configuration information to the UE about available reporting paths and their status. Based on this feedback, the UE can automatically select appropriate paths without complex internal processing, reducing device complexity while maintaining data completeness.
3Stability of the object's composition
If QoE reporting is paused due to node overload, then the network stability is improved, but the timeliness of QoE data deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism where the secondary node serves as an alternative reporting path when the master node is overloaded. Instead of pausing all reporting, the system uses the intermediary secondary node to continue receiving QoE reports, thus maintaining both network stability and data timeliness simultaneously.
Solution Approach 2:
The system dynamically changes reporting parameters based on network conditions. When the master node is overloaded, the UE changes the reporting destination parameter to the secondary node, or adjusts the reporting frequency and timing parameters. This allows the system to maintain network stability while minimizing delays in QoE data collection.
Data Source
AI summary
A method (1000) by a user equipment, UE (412), having multi-connectivity to a plurality of network nodes (410) includes receiving (1002), from at least a first network node (410A) of the plurality of network nodes, a Quality of Experience (QoE) measurement configuration comprising an indication to send an application layer indication and/or QoE report. The UE determines (1004) that the application layer indication and/or QoE report cannot be sent to the network node from which the QoE measurement configuration was received. The UE transmits (1006), to another network node (410B) of the plurality of network nodes, the application layer indication and/or QoE report.