Wireless Terminal Performance Testing via Antenna Pattern Integration
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Solution Overview
Problem
Current methods for testing the performance of wireless terminals in MIMO antenna systems are either cost-prohibitive, complex, or result in inaccurate measurements due to disruption of the terminal's real working conditions, particularly when using the reverb darkroom, multi-probe, or two-stage methods.
Innovation Solution
A method and device that involve placing the wireless terminal in an anechoic chamber with multiple antennas, obtaining antenna pattern information, generating testing signals based on this information, and transmitting them wirelessly to the terminal without the need for additional cables, allowing for continuous measurement in the same environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the two-stage method is used to test wireless terminal performance, then the testing process is divided into discrete steps, but the implementation process becomes cumbersome and the measurement result becomes inaccurate
Solution Approach 1:
The patent combines antenna pattern measurement and performance testing into a single integrated process. The testing system simultaneously performs both functions in one continuous measurement session, eliminating the need to switch between different measurement modes and avoiding disruptions to the terminal's working state, thus resolving the contradiction between ease of operation and measurement precision
Solution Approach 2:
The patent performs antenna pattern measurement first, then uses the obtained patterns to generate appropriate testing signals for performance evaluation. This preliminary action ensures that the terminal remains in the same working state throughout, and the measurement process flows continuously without interruption, maintaining both operational simplicity and measurement accuracy
2Reliability
If the multi-probe method is used to simulate spatial channel propagation model, then the testing capability is improved, but the cost of the whole testing system becomes very high and the calibration operation becomes complex
Solution Approach 1:
The patent uses an anechoic chamber as an intermediary environment to achieve accurate spatial channel propagation modeling without requiring complex multi-probe systems. The anechoic chamber provides a controlled electromagnetic environment that simplifies the testing setup while maintaining measurement reliability, thus resolving the contradiction between reliability and device complexity
Solution Approach 2:
The patent creates a simplified copy of the real-world propagation environment using the anechoic chamber and antenna patterns, rather than attempting to replicate all aspects of complex spatial channels. This approach achieves reliable testing results with a less complex system configuration
3Device complexity
If the reverb darkroom method is used for testing, then the testing setup is simple, but the number of spatial channel propagation models is limited and the antenna pattern cannot be obtained
Solution Approach 1:
The patent performs preliminary antenna pattern measurement in the anechoic chamber before conducting performance testing. This preliminary action enables the system to adapt to different spatial channel propagation models by using the measured patterns to generate appropriate testing signals, thus resolving the contradiction between device complexity and adaptability
Solution Approach 2:
The patent changes the testing approach by using measured antenna patterns as input parameters for signal generation. This allows the system to simulate various spatial channel propagation conditions without requiring multiple physical propagation environments, maintaining simplicity while increasing versatility
Data Source
AI summary
A method and a device for testing a performance of a wireless terminal and a computer readable storage medium are provided. The wireless terminal is placed in a first anechoic chamber and comprises m antennas, where m is a positive integer greater than 1. The method comprises steps of: S1, obtaining m pieces of antenna pattern information of the m antennas; S2, obtaining n first testing signals according to the m pieces of antenna pattern information, where n is a positive integer greater than 1; S3, feeding the n first testing signals to n testing antennas in a second anechoic chamber, and transmitting the n first testing signals to the wireless terminal by the n testing antennas; and S4, obtaining a piece of receiving information of the m antennas for the n first testing signals, and obtaining the performance of the wireless terminal according to the piece of receiving information.