Trace Log Management in Mobile Base Stations
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Solution Overview
Problem
Existing performance management systems in mobile communication networks face challenges in efficiently collecting and storing trace log information due to the tradeoff between granularity and resource usage, leading to degraded system performance and limited scalability.
Innovation Solution
Implementing a method where radio base stations manage trace log information by sending a trace status indication including session report criteria and timestamps to determine which data to upload to a trace log storage node, ensuring only relevant data is transmitted and stored, even during handovers between base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If trace functions are used to collect detailed performance information, then measurement precision is improved, but the quantity of data to be communicated increases significantly
Solution Approach 1:
The patent extracts only the necessary trace log data from the complete set of collected information. The source base station identifies and sends only relevant trace data to the target base station based on handover events, rather than transmitting all collected trace information. This extraction principle reduces the quantity of communicated data while preserving measurement precision for performance management.
Solution Approach 2:
The patent segments trace log management into distinct phases: collection at source base station, selective identification of relevant data, and targeted transmission to target base station. This segmentation allows the system to maintain detailed trace functions while reducing overall data communication by processing and filtering trace logs in distributed stages across multiple base stations.
2Measurement precision
If trace functions are activated for multiple users, then measurement precision is improved, but device complexity increases due to resource requirements
Solution Approach 1:
The target base station automatically receives and processes relevant trace log data from the source base station without requiring manual configuration or intervention. The system self-manages the trace data transmission and storage, reducing operational complexity while maintaining the ability to trace multiple user sessions with high precision.
3Measurement precision
If all trace log information is communicated to the performance management system, then measurement precision is improved, but loss of time occurs due to communication overhead
Solution Approach 1:
The source base station performs preliminary processing of trace log data before transmission, identifying and preparing only the relevant portions for communication. This preliminary action reduces the volume of data that needs to be transmitted, thereby decreasing communication time while ensuring that the most important performance information is still conveyed with high precision to the performance management system.
Data Source
AI summary
A first radio base station (RBS) is operated to cause trace log information to be supplied to a trace log storage node. The RBS becomes responsible for serving a user equipment session, and at some point begins a trace process. When the session report criterion has been satisfied, a trace status indication is alternatively sent to or received from a second radio base station, the trace status indication including an indicator of a session report cause and a time of satisfying the session report criterion. The indicator of the session report cause and the time of satisfying the session report criterion are used to identify a set of trace log information stored in a record buffer. If not empty, the set of trace log information is supplied to the trace log storage node.