Mobile Terminal Test Device Band Filter Automation

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Solution Overview

Problem

The existing mobile terminal test devices face inefficiencies in testing due to the need to set a Band filter for every connection with the mobile terminal, which increases processing time and reduces efficiency, especially with the increased number of frequency bands in 5G NR.

Innovation Solution

A mobile terminal test device that automatically or manually sets a Band filter by transmitting the communicable frequency band to the mobile terminal, allowing for efficient testing without the need for repeated filter settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a Band filter is set for every connection with the mobile terminal, then the mobile terminal can be connected to the appropriate frequency bands, but the processing time increases and test efficiency decreases

Engineering Contradiction:

Improveconnection reliabilityVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The control unit stores the communicable frequency band information in advance before the mobile terminal connection is established. When connection is made, the pre-stored Band filter settings are automatically applied without requiring real-time processing, thus reducing processing time while ensuring reliable connection to appropriate frequency bands.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the number of supported frequency bands is increased in 5G NR, then more communication options are available, but processing delay increases

Engineering Contradiction:

Improvefrequency band compatibilityVSAvoidprocessing speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The control unit determines and stores the communicable frequency band (Band filter) in advance based on the test device's capabilities and the mobile terminal's specifications. This pre-determination allows the system to support multiple frequency bands without processing delays during actual connection, as the appropriate band is already identified and stored for quick deployment.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If manual setting mode is used for Band filter, then flexible frequency band selection is possible, but operation complexity increases

Engineering Contradiction:

Improvefrequency band selection flexibilityVSAvoidoperation simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system provides two operational modes: automatic setting mode where the control unit automatically determines and applies the Band filter based on stored communicable frequency band information, and manual setting mode where the user can selectively choose from available frequency bands. This dynamic switching allows users to balance between operational simplicity and selection flexibility based on test requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11799566B2Mobile terminal test device and band filter setting method thereof

Publication Date: 2023.10.24 ANRITSU CORP

AI summary

To provide a mobile terminal test device capable of performing a test with high efficiency by automatically setting a Band filter. A mobile terminal test device includes a simulated base station unit 2 that performs 5G NR communication with a mobile terminal 10 in accordance with the 5G NR standard, a scenario processing unit 3 that reads a stored scenario and causes the simulated base station unit 2 to transmit notification information or execute a communication sequence with the mobile terminal 10, based on the scenario, and a control unit 6 that, when being connected to the mobile terminal 10, sets, as a Band filter, a band set as a communicable frequency band and transmits the set band to the mobile terminal 10.