Distributed RF Environment Playback for Interference Testing
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Solution Overview
Problem
Conventional testing systems for radio communication systems and devices struggle to effectively simulate varying conditions that can hinder RF communications, failing to generate an alternate RF environment for testing interference or conflicts.
Innovation Solution
A system comprising a TRx Director and TRx devices that capture RF signals, analyze characteristics, and generate alternate RF environments by modifying signal characteristics, storing waveforms, and coordinating playback across distributed devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional testing systems are used for radio communication systems, then basic RF signal transmission can be tested, but the ability to simulate varying interference conditions and generate alternate RF environments is insufficient
Solution Approach 1:
The system captures native RF signals from the environment and creates alternate RF environments by copying and modifying these signals. The TRx Director records waveform data from multiple TRx devices and generates synthetic RF environments that replicate real-world conditions while allowing controlled variation of interference parameters for comprehensive testing
Solution Approach 2:
The system modifies RF signal characteristics including frequency, power level, and modulation type to generate diverse alternate RF environments. The TRx Director enables dynamic adjustment of these parameters to simulate various interference conditions and test system performance across different operational scenarios
2Area of stationary object
If a single TRx device captures RF signals, then signal capture is simple, but the ability to capture comprehensive RF environment data across multiple locations is limited
Solution Approach 1:
The system divides the RF environment monitoring task across multiple distributed TRx devices placed at different geographic locations. Each TRx device independently captures local RF signals, and the TRx Director aggregates this distributed data to create a comprehensive view of the overall RF environment across the entire geographic area
Solution Approach 2:
The TRx Director serves multiple functions: it coordinates signal capture across distributed TRx devices, aggregates waveform data from multiple locations, analyzes RF signal characteristics, generates alternate RF environments, and manages playback across the distributed device network, replacing what would otherwise require multiple separate systems
3Duration of action of moving object
If RF signals are captured and stored for later analysis, then signal analysis can be performed, but the ability to replay and coordinate alternate RF environments across distributed devices is insufficient
Solution Approach 1:
The system implements coordinated playback where the TRx Director sends control signals to distributed TRx devices to synchronize waveform playback. Each TRx device plays back stored waveforms according to director-coordinated timing and parameters, enabling precise recreation of alternate RF environments across the distributed network for controlled testing scenarios
Data Source
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AI summary
According to examples, a system for monitoring, analyzing and generating radio frequency (RF) environments utilizing distributed devices. RF signals from an RF environment are captured. The signals may be analyzed for measuring and testing. Also, an alternate RF environment may be generated based on the captured RF signals or based on previously stored waveforms.