Integrated future-proof MIMO Over the Air test solutions
Mobile operators, device and chipset manufacturers as well as test houses use Over-The-Air (OTA) testing to verify the true performance of MIMO and diversity capable mobile devices. In OTA performance testing, a wireless device is tested without any cables connected to it, thereby incorporating the complete performance of the device, including the antenna RF front end and baseband. By accurately replicating the field propagation conditions of a live network, Propsim creates a realistic RF environment that can be presented to a device within an anechoic or reverb chamber for standardised testing.
Anite is the only vendor that offers an integrated solution – approved by all major systems integrators – enabling LTE and LTE-Advanced testing of up to 32 channels in a single box. Propsim’s superior capacity means it is ready for future evolutions like Carrier Aggregation.
Propsim is compliant to all draft MIMO OTA testing specifications (related to any planned LTE transmission modes in anechoic chamber system installations) including those published by CTIA, 3GPP and CCSA. Users of Propsim are consequently able to verify that mobile devices meet expected industry requirements.
Users benefit from Propsim’s superior emulation accuracy (enabled by 3GPP defined channel models such as SCME UMa and SCME UMi) and quicker test execution compared to other solutions available on the market. This leads to more reliable test results and accelerated device assessment.
An OTA performance test system using a Propsim channel emulator is scalable from a single cluster to full 3D.
Propsim® enabled OTA Testing product sheet
Propsim enabled MIMO OTA testing in anechoic chamber
Propsim and its related MIMO OTA Modelling Tool enable device manufacturers, mobile operators and test houses to perform accurate and reliable testing in readiness for the upcoming standardised MIMO OTA performance test plan. A wide range of wireless devices such as smart phones, tablets, and laptops can be evaluated in a fully repeatable and realistic network environment so that all critical parts of the design are simultaneously tested, including antennas, RF front end and baseband processing.
Propsim F32 is ideally suited for OTA testing in an anechoic chamber thanks to its high RF I/O capacity, compact size, ease of use and configurability. A single Propsim F32 emulator can support a configuration of 8 or 16 dual polarized antennas that create a multi-probe environment around the device under test.
Propsim enabled OTA testing in reverberation chamber
Over-the-air testing in a reverberation chamber with Propsim channel emulator enables assessment of a device’s average data throughput performance relative to other devices under isotropic SCME based channel models.
Propsim FS8 is an ideal product for OTA testing in a reverberation chamber testing because it provides full control of critical parameters such as dynamic mobile speed, multipath profile, range delay and base station antenna correlation, noise interference and inter-symbol interference caused by base station signal as well as distant propagation path reflections to device.
OTA testing with two-stage method
Two-stage Over-the-air testing capability uses SISO OTA anechoic chambers and thus requires only minor changes on existing test system. The testing starts with measurement of radiated antenna patterns of a device under test in an anechoic chamber followed by throughput measurements performed with the Propsim radio channel emulator using a selected channel model. The device under test is required to support this testing method and provide device specific data for radiated antenna pattern measurement.
Propsim FS8 channel emulator enables you to import and embed the measured antenna patterns into the SCME channel models and therefore test with a realistic radio channel model. The Propsim FS8 with 2 channels is an optimal and cost-effective choice for the two-stage method. As the Propsim emulator supports several different radio channel models, it extends the use of the basic two-stage method to test different technologies.