Band-Centric Connection Diagrams for MIMO Test Cabling

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Solution Overview

Problem

The cumbersome and error-prone cabling process in testing modern communication devices with Multiple Input Multiple Output (MIMO) techniques increases testing time and diminishes performance due to the need for frequent re-cabling across different test scenarios.

Innovation Solution

A method and system that automatically derive a connection diagram between a test device and a device under test based on a Band-Centric DUT connector configuration, using optimization algorithms and machine learning models to minimize re-cabling by optimizing the cabling process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual cabling is performed for each test scenario, then the device under test can be connected to the test device, but the testing time increases and testing performance diminishes due to frequent re-cabling

Engineering Contradiction:
Improvetesting performanceVSAvoidtesting time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system pre-calculates and stores optimal connection diagrams for multiple test scenarios before actual testing begins. The connection diagram calculation unit generates connection configurations based on device under test specifications and test requirements, so that when testing starts, the pre-computed connection diagrams are already available for immediate implementation, eliminating the need for manual re-cabling between test scenarios

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically selects and switches between different pre-calculated connection diagrams based on the current test scenario requirements. Instead of using a fixed cabling configuration, the system adapts the connection topology automatically by selecting the appropriate pre-computed diagram that matches the current test needs, enabling flexible transition between test scenarios without physical re-cabling

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If manual cabling is performed for each test scenario, then the device under test can be connected to the test device, but the cabling process becomes cumbersome and error-prone

Engineering Contradiction:
Improvecabling processVSAvoidcabling accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system automatically generates and outputs connection diagrams without requiring manual intervention. The connection diagram calculation unit autonomously processes device under test specifications and test scenario requirements to produce accurate connection configurations, eliminating human errors associated with manual cabling planning and execution

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces the mechanical manual cabling process with an automated information processing system. Instead of physically manipulating cables and connectors based on manual planning, the system uses computational algorithms to generate connection diagrams that guide the cabling process, reducing both the manual effort required and the potential for human error

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20260058736A1Method and system for providing a connection diagram between a test device and a device under test
Publication Date: 2026.02.26 ROHDE & SCHWARZ GMBH & CO KG
  • US20260058736A1 patent drawing
  • US20260058736A1 patent drawing
  • US20260058736A1 patent drawing

AI summary

A method and system for providing a connection diagram and/or a connection list between a test device and a device under test wherein said test device has a plurality of connectors with different characteristics and said device under test has a plurality of antennas, wherein the connection diagram and/or connection list is calculated by a processor automatically on the basis of a Band-Centric DUT Connector Configuration indicating a mapping between frequency bands and a set of device under test connectors and/or antennas in transmission and reception direction.