Mobile Terminal Spherical Coverage Testing With Early Fail Control
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Solution Overview
Problem
Full spherical coverage measurements in 5G NR wireless terminals are time-consuming, and there is a need to stop measurements when a Fail determination occurs during the process to save time and facilitate re-measurement.
Innovation Solution
A mobile terminal testing device with a positioner and integrated control unit that stops measurement when a preset number of Fail points are reached during spherical coverage testing, allowing for automatic re-measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full spherical coverage measurement is performed to ensure complete testing of 5G NR wireless terminals, then measurement completeness and reliability are improved, but measurement time increases significantly
Solution Approach 1:
The control unit continuously monitors measurement results during the spherical coverage test and uses this feedback to determine when to stop the measurement. When the number of Fail points reaches a predetermined threshold, the system automatically stops the measurement, avoiding unnecessary continuation and reducing measurement time while maintaining reliable failure detection.
Solution Approach 2:
The system pre-establishes a threshold value for the number of Fail points before measurement begins. This preliminary setting allows the measurement process to be stopped automatically when the threshold is reached, eliminating the need to complete the full spherical measurement and significantly reducing measurement time.
2Loss of information
If measurement continues until completion to obtain full spherical coverage data, then complete CDF/CCDF graphs can be generated, but time loss increases when re-measurement is required
Solution Approach 1:
The control unit monitors the number of Fail points in real-time and uses this information to automatically stop measurement when the threshold is reached. This feedback mechanism ensures that when failure is detected, the measurement can be stopped immediately and re-measurement can begin without waiting for the full spherical measurement to complete, reducing overall time loss.
3Productivity
If the measurement process is stopped early when Fail points are detected, then measurement time is reduced, but the ability to obtain complete spherical coverage data may be affected
Solution Approach 1:
The system pre-sets a threshold for the number of Fail points that triggers automatic measurement termination. This preliminary configuration allows the system to stop measurement efficiently when failure is detected, improving productivity while still providing sufficient data to determine measurement failure without needing complete spherical coverage data.
Data Source
AI summary
Provided is a mobile terminal testing device that can reduce time required for measurement. An Early Fail control unit includes a Fail condition setting unit that sets a condition for determining whether a measurement result is Fail, a Fail point management unit that manages information on a Fail point, which is a measurement position at which the measured level is below a regulated level and is determined to be Fail, and an Early Fail determination unit that determines whether a result is Fail even if the measurement is continued, based on information on the Fail points managed by the Fail point management unit. When measurement of Spherical coverage of 5G NR is performed, the Early Fail control unit determines whether the result is Early Fail in which the result is Fail even if the measurement is continued, and stops the measurement when the result is determined to be Early Fail.