PSCell Change Failure Recovery Through Closed-Loop Network Feedback
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Solution Overview
Problem
Existing wireless communication systems face challenges in identifying and recovering from abnormal cases during primary cell of secondary cell group (PSCell) change procedures, leading to inefficiencies and resource waste.
Innovation Solution
A system and method for optimizing PSCell change processes by enabling communication nodes to exchange failure information, including specific details about the failure, measurements, and candidate PSCells, allowing for autonomous recovery and optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PSCell change procedures are implemented in wireless communication systems, then network coverage and connectivity are improved, but failure identification and recovery capabilities are insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the UE sends failure information to the network node, which then sends back a report with processed failure data. This closed-loop feedback enables the system to identify failures, analyze their causes, and implement recovery actions, directly addressing the reliability improvement need while managing complexity through structured information flow.
Solution Approach 2:
The network node acts as an intermediary between the UE and the PSCell change procedure. It receives failure information from the UE, processes and analyzes the failure data, generates reports, and sends them back to the UE or relevant network entities. This intermediary role simplifies the overall system by centralizing the failure analysis function.
2Difficulty of detecting and measuring
If failure information exchange between communication nodes is enabled, then failure identification capability is improved, but message processing complexity increases
Solution Approach 1:
The patent extracts and processes only the essential failure information from the complete message set. The network node selectively processes specific failure parameters (such as failure type, PSCell identity, measurement results) while filtering out redundant information. This extraction approach improves failure detection capability while limiting the processing complexity to only necessary message elements.
Solution Approach 2:
The system performs preliminary actions by pre-configuring failure detection parameters and establishing the failure information exchange mechanism in advance. The network node is pre-programmed with the necessary processing logic for failure analysis, so when failures occur, the processing can be executed efficiently without requiring complex real-time decision-making.
3Extent of automation
If autonomous recovery mechanisms are implemented, then system self-healing capability is improved, but information processing requirements increase
Solution Approach 1:
The patent implements self-service by enabling the UE to autonomously detect failures, report them to the network node, and execute recovery actions based on the received reports. The system serves itself by using the failure information exchange mechanism to automatically trigger recovery procedures without requiring manual intervention, thereby improving autonomous recovery capability while managing information processing requirements through efficient UE-initiated reporting.
Data Source
AI summary
Presented are systems, methods, apparatuses, or computer-readable media for optimizing primary cell of secondary cell group (PSCell) change processes. A wireless communication device may identify a failure occurred for a procedure to change from a first PSCell in a source secondary communication node to a second PSCell in a target secondary communication node. The wireless communication device may send a first message including first information related to the failure.