Virtualized Central Unit Rogue User Plane Detection
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Solution Overview
Problem
In new radio (NR) networks, user plane scheduling failures occur when user planes transition to a 'sleep' or 'idle' state, leading to unsuccessful data packet transmission due to lack of mechanisms for efficient detection and resolution.
Innovation Solution
A system and method where a virtualized central unit (VCU) monitors data traffic, detects inconsistencies, and provides notifications to external devices, enabling recovery actions to be taken when data traffic inconsistencies are identified, thereby ensuring uninterrupted data flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If user plane transitions to sleep or idle state to save energy, then energy consumption is reduced, but data packet transmission reliability deteriorates
Solution Approach 1:
The system performs preliminary actions by sending test packets to user planes before actual data transmission and proactively monitoring for inconsistencies. When a user plane transitions to sleep or idle state, the monitoring mechanism detects traffic inconsistencies (such as packets being scheduled but not transmitted) before they cause service failures, enabling early warning and preventive switching to backup user planes.
2Device complexity
If user plane scheduling is performed without monitoring mechanism, then system complexity is reduced, but detection capability of scheduling failures deteriorates
Solution Approach 1:
The system implements a feedback mechanism where the monitoring unit continuously observes data traffic on user planes and compares expected traffic patterns with actual transmission status. When inconsistencies are detected (such as scheduled packets not being transmitted), the system generates notifications to the control unit, which can then switch to backup user planes. This closed-loop feedback enables automatic detection and response to scheduling failures without requiring complex manual monitoring systems.
Data Source
AI summary
A method is provided. The method includes monitoring, by a virtualized central unit (VCU), data traffic on a first user plane, detecting, by the VCU, a data traffic inconsistency on the first user plane, and providing, by the VCU, a notification of the data traffic inconsistency to an external device based on the detecting the data traffic inconsistency. The VCU resumes monitoring data traffic on the first user plane based on an indication from the external device that the data traffic inconsistency is resolved.