Network Profile Generation from Field Test Logs
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Solution Overview
Problem
In-field testing of mobile radio devices in public cellular networks is time-consuming and expensive due to the need for manual analysis of log files and replication of complex network configurations, which limits the efficiency of identifying and replicating observed behaviors.
Innovation Solution
A method that automatically generates a network profile from field test log files, including protocol messages and physical layer measurement data, to replicate the cellular network configuration, allowing for the identification of relevant cells and behaviors, and applies this profile to a testing device to simulate the field conditions, reducing the need for extensive manual effort and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual analysis of field test log files is performed to extract network configuration data, then the accuracy of identifying device behavior causes is improved, but the time consumption and cost of testing increase significantly
Solution Approach 1:
The patent creates a virtual copy of the field network environment by automatically generating a network profile from field test log files. This profile contains extracted network configuration data, cell information, and protocol message patterns that replicate real-world conditions. The virtual network model allows laboratory testing to accurately reproduce field device behaviors without requiring actual field deployment, thus maintaining measurement precision while eliminating time loss.
Solution Approach 2:
The system performs preliminary automated extraction and analysis of network configuration data from field test log files before laboratory testing begins. By pre-processing the log files to generate structured network profiles containing cell parameters, protocol messages, and configuration data, the system prepares all necessary test conditions in advance. This preliminary action eliminates the need for manual analysis during actual testing, reducing time consumption while maintaining accuracy.
2Adaptability or versatility
If comprehensive field test log files with multiple cells are analyzed to capture all network scenarios, then the coverage of device behavior testing is improved, but the complexity of processing and analyzing the data increases
Solution Approach 1:
The patent segments the complex field test log file processing into distinct automated components: log file parsing, network configuration extraction, cell identification, protocol message analysis, and profile generation. Each component handles a specific aspect of the data, breaking down the overwhelming complexity into manageable tasks. The system processes multiple cell data independently and consolidates them into a structured network profile, maintaining comprehensive coverage while reducing processing complexity through modular automated design.
3Reliability
If the network profile includes all cells from the field test to maintain accuracy, then the fidelity of laboratory testing is improved, but the resource requirements of the testing device increase
Solution Approach 1:
The patent extracts only the essential network configuration parameters, cell information, and protocol message patterns from the comprehensive field test log files to create a condensed network profile. Rather than including all raw data from every cell, the system identifies and extracts the critical elements needed to reproduce device behaviors, such as key cell parameters, relevant protocol sequences, and important configuration data. This extraction maintains testing fidelity by preserving essential information while reducing the quantity of data that the testing device must process and store.
Data Source
AI summary
A method and apparatus for providing a network profile used for testing of a device under test, the method comprising the steps of reading at least one field test log file recorded during a field test of said device under test, wherein the field test log file comprises network protocol messages and/or physical layer measurement data and extracting one or more protocol messages and/or payload data from the recorded field test log file including information concerning associated cells of a cellular network to generate automatically the network profile.