Wireless Test System Dynamic Interference Control
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Solution Overview
Problem
Existing wireless test systems are limited in simulating realistic interference scenarios for testing wireless communication devices, as they primarily use continuous wave signals with fixed properties, which do not accurately reflect real-world interference conditions.
Innovation Solution
A test system and method that utilize a feedback loop to control interference signals based on real-time frequency spectrum measurements, allowing for dynamic adaptation of signal strength and frequency to match the device under test's operating conditions, thereby simulating more realistic interference scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If continuous wave signals with fixed properties are used for testing, then the test system is simple to operate, but the testing does not reflect real interference scenarios accurately
Solution Approach 1:
The patent implements a feedback mechanism where the spectrum measurement device continuously monitors the frequency spectrum and provides information to the interference controller, which dynamically adjusts the interfering device's signal parameters based on the measured spectrum, thereby achieving realistic interference simulation while maintaining operational simplicity
Solution Approach 2:
The patent transitions from static continuous wave signals to dynamic interfering signals that automatically adapt their frequency and signal strength based on real-time spectrum measurements, allowing the test system to reflect real-world interference scenarios accurately
2Reliability
If high signal strength interfering signals are used to test robustness, then the device under test is thoroughly challenged, but unnecessary interference and power consumption increase
Solution Approach 1:
The patent dynamically changes the parameters of interfering signals (frequency and signal strength) based on spectrum measurements, adjusting them to match actual operating conditions rather than using fixed high-strength signals, thereby reducing unnecessary power consumption while maintaining testing effectiveness
Solution Approach 2:
The patent applies interfering signals at appropriate levels based on measured spectrum conditions rather than always using maximum strength, avoiding excessive interference that would waste energy while still sufficiently challenging the device under test
Data Source
AI summary
System and method for testing a device under test via a wireless communication link. When testing the device under test, an interference signal may be applied to the test scenario. The generation of the interference signal may be controlled based on a monitoring of a frequency spectrum in the test scenario, in particular a frequency spectrum at the device under test. In this way, a more realistic test scenario can be achieved.