Composite Signal Generator for Location Service Testing
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Solution Overview
Problem
Current methods for testing devices under test for location-based services require complex and costly hardware setups to simulate multiple access points, leading to high costs and time consumption.
Innovation Solution
A signal generator that broadcasts a single composite signal emulating multiple access points, reducing the need for multiple radio frequency antennas and network cards, and allowing testing with a single radio frequency connection, thereby simplifying and cost-reducing the test system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radio frequency antennas and network cards are used to simulate multiple access points, then the testing capability is improved, but the device complexity and cost increase
Solution Approach 1:
The patent combines multiple access point simulations into a single signal generator that can generate and broadcast composite signals emulating multiple access points simultaneously. This merging of multiple hardware functions into one device reduces the number of required components while maintaining full testing capability for location-based services
Solution Approach 2:
The signal generator is designed with multi-functionality to perform both signal generation and access point simulation roles. It can generate composite signals that emulate multiple different access points using a single device, eliminating the need for separate network cards and antennas for each access point simulation
2Measurement precision
If multiple hardware components are used for testing, then the testing accuracy is improved, but the cost increases
Solution Approach 1:
Multiple hardware components are merged into a single signal generator that maintains testing accuracy by generating composite signals containing information from multiple emulated access points. The single device performs what previously required multiple separate components, reducing quantity while preserving measurement precision
3Reliability
If a complex test system with multiple components is established, then the testing completeness is improved, but the time required for setup increases
Solution Approach 1:
The test system is simplified by merging multiple access point simulations into a single signal generator. This reduces setup time significantly as only one device needs to be configured and connected, while the device maintains complete testing capability through its ability to emulate multiple access points within a single composite signal
Data Source
AI summary
A signal generator for broadcasting signals to a device under test is described. Said signal generator comprises a broadcasting unit configured to broadcast a signal and a controller unit configured to send a composite signal to the broadcasting unit. Said composite signal emulates several signals from multiple access points. Further, a method and a test system for testing a device under test are described.