Wireless terminal R&D level and certification level OTA test system

supporting 5G MIMO/SISO measurement

Product Description

The design and construction of RZ9000 are based on several independent patented technologies, and there are many technological innovations in electromagnetic environment design, measurement component optimization, test algorithm optimization, and system software development. The series of products use the mature RuiTest wireless communication OTA test software for general testing. The wireless communication OTA test software is developed based on the Microsoft .NET Framework software platform. It has comprehensive functions and is easy to use. The whole system has extremely high test stability and accuracy.

Product Features

The hardware design of the RZ9000 OTA test system fully meets the far-field test conditions defined in the latest version of CTIA’s “Test Plan for Mobile Station Over the Air Performance”, and fully complies with its specified calibration methods and test procedures. In addition, RZ9000 can also be extended to support other IoT product tests such as Zigbee/Lora/NB IOT, which can be realized by adding additional instruments and upgrading measurement software.

Passive test and OTA test functions for different communication formats:

  • Mobile Communication 2G/3G/4G/5G FR1
  • Wi-Fi 802.11b/g/n/a/ac/ax
  • Bluetooth
  • GNSS
  • 5G NR FR1 4×4 MIMO OTA Multi-Probe Throughput Test
  • 5G NR FR1 4×4 MIMO OTA two-stage throughput test

Cooperate with the general test RuiTest wireless communication OTA test software, RZ9000 supports the fully automated test of the following test items, and the measurement indicators include:

  • Horizontal Specific Angle Radiated Power (NHPRP)
  • Horizontal Specific Angle Sensitivity (NHPIS)
  • MIMO Antenna Correlation
  • Cross Polar Level
  • Antenna Effificiency
  • Total Isotropic Sensitivity (TIS)
  • 2D/3D radiation pattern
  • Equivalent Isotropic Radiated Power (EIRP)
  • Equivalent Isotropic Sensitivity (EIS)
  • MIMO throughput (Throughput)
  • Gain
  • Directivity
  • Beamwidth
  • Total Radiated Power (TRP)


Integrated Distributed Antenna System

The RZ9000 system adopts a multi-probe antenna system architecture. The probe antennas for SISO measurement and MIMO measurement are installed independently through a modular design, which improves the flexibility of system configuration. Modular installation not only reduces the complexity of system construction, but also improves system installation accuracy and consistency.

Radiated Two-Stage (RTS) MIMO Testing

RZ9000 system supports MIMO test function based on RTS method. For example, the RTS method is used for 4X4 MIMO test.

Multidimensional MIMO performance evaluation

RZ9000 MIMO test can support throughput test function based on SIR (Signal to Interference Ratio) and throughput test function based on RS-EPRE. The throughput test function based on SIR mainly refers to the MIMO test standard of CTIA. This method is to continuously increase the additional AWGN noise power in the case of the downlink power output by the fixed channel simulator, and change the SIR of the environment where the DUT is located. Evaluate the throughput performance of the DUT under different SIR conditions.

Multiple Probe Method (MPAC) MIMO Testing
  • RZ9000 system MIMO test supports two test schemes based on comprehensive tester and based on actual base station.
  • The test scheme based on the comprehensive tester only includes downlink one-way channel simulation, which is used to evaluate the performance of the terminal downlink throughput. During the test, only the 8 probe antennas or 16 probe antennas of the horizontal middle ring can be used for the evaluation test under the 2D channel model, or the probe antennas on the upper and lower horizontal double rings can be added for the evaluation test under the 3D channel model.
  • The test scheme based on the actual base station includes uplink and downlink bidirectional channel simulation, which can be used to evaluate the performance of the terminal’s uplink and downlink bidirectional throughput. When this scheme is adopted, one set of 8 probe antennas in the horizontal middle ring is used for downlink channel simulation, the other set of 8 probe antennas is used for uplink channel simulation, and the two sets of probe antennas are staggered to realize the uplink and downlink channel interaction scenarios.
Broadband Low Scattering Dual Polarization Measuring Probe Antenna

The measurement antenna of RZ9000 is a broadband low-scattering dual-polarized antenna (MA-2800) independently designed by General Test. Can be used for gain calibration, measuring probes and generating wideband interference signals.

EPP Rigid Foam Absorber

The absorbing material is one of the most important core components of the anechoic chamber, and its performance and product quality have a direct impact on the overall indicators of the project. GTS’s full range of products use high-performance, environmentally friendly fourth-generation absorbing materials based on the world’s leading technology – GTS’s patented polypropylene foam (EPP) absorbing material, which has unparalleled advantages over traditional polyurethane sponge (PU) materials sex.

Test Software

  • It supports 3D testing, 2D testing of plane and single point testing and verification.
  • The original test data and log management are perfect, and the test process is unchangeable and traceable.
  • The batch function supports the creation of task lists for unattended continuous testing.
  • The software has built-in rich templates, and the preset parameter settings fully consider the characteristics of different instruments and platforms. The operation is simple and effectively avoids misoperation.
  • Click to view test data at any point is supported.
  • Supports rich test process anti-drop, continuous breakpoint and abnormal prompt settings, effectively improving the reliability and fluency of measurement.
  • The 3D data display software provides the function of rotating, browsing and cutting the orientation diagram at any angle, helping R&D engineers to analyze and diagnose problems intuitively.
  • Supports free choice of test angle step size and test configuration.