Multi-Standard Mobile Terminal Testing for LTE-NR Integration
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Solution Overview
Problem
Existing mobile terminal testing systems for 5G NR and LTE are bulky due to separate devices for each standard, leading to high development costs and delays, and lack flexibility for future communication standard adaptations.
Innovation Solution
A mobile terminal testing system with integrated interface and measurement units for multiple communication standards, allowing easy addition or deletion of test functions, specifically incorporating 5G NR and LTE standards, through an external device with scenario and interface units that facilitate information exchange between different communication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate testing devices for LTE and NR are used, then testing functionality for both standards is achieved, but system size and device complexity increase
Solution Approach 1:
The patent combines LTE and NR testing devices into a single integrated testing device. The device includes both an LTE measurement unit and an NR measurement unit that share common components such as the radio frequency unit, baseband processing unit, and control unit. This merging approach maintains the ability to test both LTE and NR standards while reducing system size and eliminating the need for separate testing devices for each standard.
2Adaptability or versatility
If separate testing devices for LTE and NR are used, then comprehensive testing coverage is achieved, but development cost and time increase
Solution Approach 1:
The integrated testing device is designed with multi-functionality to support both LTE and NR testing operations. The device includes a control unit that can execute different test scenarios for both standards, and the measurement units are configured to perform measurements according to either LTE or NR protocols. This universal design allows a single device to replace multiple specialized devices, reducing development time and cost while maintaining comprehensive testing coverage.
3Measurement precision
If separate testing devices for LTE and NR are used, then standard-specific testing precision is maintained, but system complexity and cost increase
Solution Approach 1:
The integrated testing device is segmented into distinct functional modules: an LTE measurement unit for LTE-specific measurements and an NR measurement unit for NR-specific measurements. Each measurement unit is specialized to maintain precision for its respective standard while sharing common infrastructure components. This segmentation allows the device to preserve standard-specific testing precision without requiring completely separate devices, thereby reducing overall device complexity.
Data Source
AI summary
According to the present invention, provided is a mobile terminal testing system that can be easily adding or deleting test functions of another communication standard to or from test functions of a predetermined communication standard. A mobile terminal testing system includes a mobile terminal testing device 1 including an LTE measurement unit 12 which transmits and receives a signal to and from a mobile terminal by LTE, and an NR measurement unit 13 which transmits and receives the signal to and from the mobile terminal by NR, and a personal computer device 2 including an LTE interface unit 22 which controls an interface with a user for LTE, and an NR interface unit 23 which controls an interface with the user for NR, in which the LTE interface unit 22 and the LTE measurement unit 12 transmit and receive information via the NR interface unit 23.