5G UDM Timestamping for Call Event Debugging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G telecommunication networks, errors during data transmission between the Unified Data Management (UDM) and Unified Data Repository (UDR) are difficult to debug due to the lack of timestamping, making it challenging to identify which interface call event caused failures for subscribers or user equipment (UE).
Innovation Solution
Incorporating timestamps in messages sent from the UDM to the UDR, allowing for tracking and debugging of call events by indicating the transmission time, which facilitates the auditing and debugging of interworking cases such as 4G/5G handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If timestamping is added to messages between UDM and UDR, then debugging capability is improved, but message complexity increases
Solution Approach 1:
The timestamp is generated and included in the message at the moment of message creation, before transmission occurs. This preliminary action of pre-tagging messages with temporal information enables subsequent debugging and tracking operations without requiring additional complexity during message processing or analysis phases.
Solution Approach 2:
The timestamp acts as an intermediary element that carries temporal information between the UDM and UDR components. This intermediate data element facilitates the debugging process by providing a reference point for event sequencing and correlation, while maintaining a simple structure that does not significantly increase overall message complexity.
2Measurement precision
If timestamps are included in all messages, then event tracking precision is improved, but data transmission overhead increases
Solution Approach 1:
The timestamping approach applies differentiation based on local needs: mandatory timestamps are included in messages where precise event tracking is critical for debugging and auditing, while other messages may use optional or simplified timestamping. This local quality approach ensures high measurement precision where needed without uniformly increasing data overhead across all message types.
Data Source
AI summary
Systems and methods for 5G telecommunication call event timestamping to assist in debugging the flow of call events, such as during roaming, handover operations, or when user equipment (UE) accesses a different network slice. Specifically, a system for the provision of wireless telecommunication services can include a core network having a first UDR and a first UDM. The first UDM, upon receiving communication from one or more network functions, can communicate a first message to the first UDR. The first message can include a first timestamp indicating to the first UDR a first time that the first message was transmitted.