CLI-Based Network Tracing for 5G Request Failure Root Cause
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Solution Overview
Problem
Developers in 5G networks face challenges in determining the precise cause of request failures due to the inability to access call data records (CDR) or clear code, necessitating a system and method for efficient network and subscriber tracing without affecting production.
Innovation Solution
A system utilizing a command line interface (CLI) integrated with a gateway mobile location centre (GMLC) for network tracing and subscriber tracing, coupled with unified data management (UDM) and access and mobility management function (AMF), generates tracing IDs and predefined parameters to determine the root cause of failures through real-time analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If developers access call data records (CDR) and clear code to determine request failure causes, then diagnostic accuracy improves, but system security and production stability deteriorate
Solution Approach 1:
The patent introduces a Gateway Mobile Location Centre (GMLC) as an intermediary component that collects, processes, and analyzes tracing data from multiple network functions (AMF, UDM, etc.) without requiring direct developer access to production systems. This mediator provides diagnostic capabilities while maintaining production stability through controlled interfaces and isolated analysis environments.
2Measurement precision
If comprehensive network tracing is implemented to identify root causes, then fault detection accuracy improves, but system complexity increases
Solution Approach 1:
The patent segments the network tracing system into distinct functional modules: GMLC for centralized coordination, AMF for access and mobility management tracing, UDM for unified data management tracing, and OAM for operations and maintenance. Each module handles specific tracing tasks independently, reducing overall system complexity while maintaining comprehensive fault detection capability.
Solution Approach 2:
The GMLC acts as a central intermediary that receives tracing requests, generates unique tracing IDs, and distributes them to appropriate network functions. This mediator simplifies the complexity by providing a single entry point and centralized coordination mechanism for comprehensive network tracing.
3Loss of time
If real-time network and subscriber tracing is performed, then root cause analysis speed improves, but processing overhead increases
Solution Approach 1:
The system performs preliminary actions by pre-configuring tracing parameters, subscriber profiles, and network function associations in the GMLC before actual failures occur. When a failure happens, the pre-prepared tracing framework enables rapid real-time analysis without the overhead of setting up tracing mechanisms during the incident response.
Solution Approach 2:
The patent dynamically changes tracing parameters based on the specific failure scenario and subscriber type. The GMLC adjusts the scope, depth, and granularity of tracing data collection according to the incident severity and type, optimizing the balance between analysis speed and processing overhead by avoiding unnecessary data collection.
Data Source
AI summary
The present disclosure provides a system (110) and a method (400) for network tracing using a command line interface (CLI) (112). The system (110) is integrated with the CLI (112) to provide location information of the concerned subscriber to an external client, trace requests from the subscriber in an efficient manner. The CLI (112) enables network tracing and subscriber tracing, thereby increasing efficiency to determine a root cause of a request failure from the subscriber.