Antenna Frequency Band Relation Determination
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Solution Overview
Problem
Users face challenges in configuring communication devices for MIMO communication, as they often lack access to the necessary data sheets detailing the antenna frequency band relations, leading to potential misconfigurations, especially with prototype devices.
Innovation Solution
A method involving an attach procedure between a device under test and a test system, where the system requests and receives frequency band information from the device, followed by individual testing of each antenna for supported frequency bands, allowing for automatic determination and verification of the device's antenna frequency band relation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users configure communication devices manually using data sheets, then configuration accuracy may be improved, but ease of operation deteriorates due to unavailability of data sheets
Solution Approach 1:
The device under test automatically provides its own configuration information by submitting supported frequency bands to the test system, eliminating the need for external data sheets and enabling self-configuration without manual intervention
Solution Approach 2:
The device under test pre-submits its frequency band capabilities to the test system before actual testing begins, allowing the test system to automatically determine antenna frequency band relations without requiring users to manually consult data sheets
2Measurement precision
If all frequency bands are tested for each antenna, then measurement precision is improved, but productivity deteriorates due to increased testing time
Solution Approach 1:
The test system performs testing only on frequency bands that have been submitted by the device under test, rather than exhaustively testing all possible frequency bands, thereby achieving sufficient verification without excessive testing time
Solution Approach 2:
Frequency band information is submitted in advance by the device under test, allowing the test system to focus testing efforts only on relevant frequency bands rather than performing comprehensive testing on all possible bands
Data Source
Figure 1~2
Figure 3
AI summary
A method of determining a device under test antenna frequency band relation of a device under test (12). The method comprises the steps: - Performing an attach procedure between the device under test (12) and a test system (14), - Asking the device under test (12) for at least one frequency band supported by the device under test (12), - Submitting the at least one frequency band supported to the test system (14), and - Performing a signaling test and/or a transmitter and/or receiver test for each antenna of the device under test (12) and for each frequency band supported. Furthermore, a test system for determining a device under test antenna frequency band relation of a device under test (12) is described.