NSA Mobile Terminal Test Device Port Selection
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Solution Overview
Problem
The existing communication terminal measurement systems require separate LTE and NR measurement devices for testing NSA-compatible mobile terminals, leading to a larger configuration and increased complexity.
Innovation Solution
A mobile terminal test device with multiple analysis units, a selection unit, and a control unit that connects and corrects signals across multiple ports, allowing for efficient testing of NSA-compatible terminals while minimizing the test configuration and enhancing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate LTE and NR measurement devices are used for testing NSA-compatible mobile terminals, then measurement accuracy for both LTE and NR is improved, but device complexity and configuration size increase
Solution Approach 1:
The patent combines LTE analysis unit and NR analysis unit into a single integrated test device. The selection unit dynamically connects either LTE port or NR port to the shared analysis unit based on test requirements, merging previously separate measurement devices into one unified system that maintains measurement accuracy for both LTE and NR while reducing configuration size.
Solution Approach 2:
The patent introduces a selection unit that dynamically switches connection destinations between LTE port and NR port based on the type of test being performed. This dynamic switching capability allows the same analysis unit to serve both LTE and NR measurement functions, adapting the system configuration in real-time rather than requiring fixed separate connections for each standard.
2Adaptability or versatility
If multiple analysis units are provided for each port, then signal analysis capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent makes the analysis unit universal by enabling it to analyze signals from both LTE and NR standards. The selection unit routes signals from either LTE port or NR port to the same analysis unit, which is configured to handle both types of signals. This multi-functionality eliminates the need for separate analysis units for each standard while maintaining full signal analysis capability.
Solution Approach 2:
The patent extracts the standard-specific port interfaces (LTE port and NR port) from the analysis function, separating the connection interface layer from the signal analysis layer. The selection unit handles the extraction and routing of signals from different standards to a unified analysis unit, allowing the analysis functionality to be shared while maintaining compatibility with multiple standards.
Data Source
AI summary
To provide a mobile terminal test device capable of efficiently testing a mobile terminal compatible with NSA while suppressing a test configuration to be small. A mobile terminal test device includes a first analysis unit 24a and a second analysis unit 24b that analyze a signal received from a mobile terminal, a selection unit 22 that selects ports for a first port 21a, a second port 21b, a first port 31a, and a second port 31b connected to the mobile terminal, and ports connected to the first analysis unit 24a and the second analysis unit 24b, and a control unit 6 that causes the selection unit 22 to select the ports to be connected to the first analysis unit 24a and the second analysis unit 24b, from a connection state between the port and the mobile terminal.