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| Solution developer | Chamber type and dimension | Hardware support (available antennas/probes) | Channel model | Frequency range | Other features |
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| Elektrobit [33] | Anechoic | to , up to 32 channels with 48 fading paths per fading channel available | Standard (LTE, ITU 3G), optional including LTE-A evaluation models, dynamic spatially evolving channel modeling | 30–2700 MHz, RF interface channel signal BW 40 MHz | Supports carrier aggregation up to 160 MHz, multiple RF bands, coordinated multipoint, and relaying |
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| Spirent [34] | Anechoic | 4 to 32 probe layouts | Standard (3GPP, SCM/SCME, WINNER, and ITU) and classical user-defined models | Up to 6 GHz, signal BW 26 MHz (SR5500 Wireless Channel Emulator) | Transmit antenna having single as well as dual polarizations |
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| SATIMO [35] | Anechoic | 4 to 32 MIMO dual-polarized probes | Propagation models in a controlled environment (single cluster, multiple cluster, and uniform). | 400 MHz to 6 GHz | Positioner feature allowing to choose desired azimuth for testing the DuT in more orientations |
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| Rohde and Schwarz [5, 36] | Anechoic () | MIMO downlink | Static channel model | Test results reported for 10 MHz BW (LTE mode) in 0.7 GHz band (TS8991 MIMO-OTA) | Quad-ridged horn antennas, dedicated and antenna connectors |
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| ETS-Lindgren [37] | Anechoic () | Not specified | Specially modified spatial channel models, appropriate Doppler and delay spreads to emulate the scattering effect of fixed and moving objects | 700 MHz to 10 GHz (Model AMS-8700) | MIMO dual-polarized environment simulation antennas |
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| Emite Ing [38] | Multimode-stirred reverberation chambers | MIMO Analyzer (Series E100) having ability to test up to 8 radiating element prototypes | Angle of arrival (AoA), angle spread (AS), number of multipath components (MPC), and the eigenvalues considered as channel parameters | Not specified | Different fading scenarios with and without the presence of the user, fast and nonexpensive |
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| Agilent Technologies [39] | Reverberation, anechoic | MIMO | Correlation-based and geometry-based model | Not specified | Two-stage method |
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