How to Validate Ultra-Massive MIMO Beamforming

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PROPSIM F64 RF Channel Emulator
+ PROPSIM F64 RF Channel Emulator
PROPSIM F64 RF Channel Emulator
+ PROPSIM F64 RF Channel Emulator

Validate 6G FR1 and FR3 xMIMO Beamforming

Ultra-massive MIMO beamforming validation in the 6G FR3 range requires phase- and time-coherent multi-channel radio frequency (RF) emulation, semi-deterministic or deterministic channel models, and calibrated phase and amplitude across channels. The setup couples a base-station antenna system to a multi-channel RF channel emulator through conductive connections or an over-the-air configuration in an anechoic chamber. The channel model must preserve angular characteristics with enough spatial consistency to exercise narrow pencil beams and multiple concurrent MIMO layers.

During the test, dynamic channel emulation applies multipath fading, shadowing, mobility-driven Doppler, line-of-sight (LoS) and non-line-of-sight (NLoS) transitions, blockage, noise, and interference while the beamformer adapts precoding and beam management. Measurements track beamforming gain, beamwidth, sidelobe levels, and the effect of channel variation as the user equipment moves through the modeled environment. Deterministic channel models can be used for site-specific propagation, while semi-deterministic models add controlled variability around a defined layout.

FR1 and FR3 xMIMO Beamforming Validation Solution

Perform the test with phase- and time-coherent RF paths, calibrated amplitude and phase, and dynamic 6G FR3 channel models that reproduce the angular and temporal behavior experienced by a large-aperture antenna array. Keysight Channel Studio generates stochastic, semi-deterministic, and deterministic channel models, while the PROPSIM FR3 multi-channel RF emulator applies those models to real hardware. Test configurations can scale from four up to 64 / 256 RF channels for conductive or over-the-air testing in an anechoic chamber. The setup can reproduce multipath fading, shadowing, mobility and Doppler, blockage, noise, interference, and phase-noise impairments while measuring beamforming gain, beamwidth, and sidelobe levels.
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