How to Perform 5G Channel Sounding Measurements

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Signal Generator
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Signal Generator
+ Signal Generator

Measuring 5G channel sounding using wideband correlation

Measuring 5G channel sounding requires assessing the characteristics of the radio channel to optimize wireless communication. The wideband correlation technique represents the best approach to performing channel sounding as it measures the entire bandwidth, simultaneously enabling faster access to channel impulse response (CIR) data. The technique involves creating a mathematical model as well as capturing and analyzing the correlation of signals received at multiple antennas. Analyzing the signals enables the spatial property characterization of the wireless channel, such as the angle of arrival (AoA), angle of departure (AoD), and other spatial information.

To perform 5G channel sounding measurements, engineers need a solution that uses wideband correlation as the baseband-sounding technique. The solution must include a wideband signal generator with a wideband arbitrary waveform generator (AWG) and millimeter-wave (mmWave) vector signal generator (VSG). The AWG provides the in-phase and quadrature (I/Q) signals that modulate the output of the VSG, and the mmWave switch routes the VSG output to the transmit antennas in sequence. On the receiver side, a multichannel downconverter translates the received signals into the intermediate frequency (IF) bandwidth of the multichannel digitizer.

5G Channel Sounding Measurements solution

Optimizing wireless communication requires accurate 5G channel sounding measurements. The Keysight 5G channel sounding solution combines various hardware and software, including a microwave analog signal generator, arbitrary waveform generator, and mmWave vector signal generator. The solution enables engineers and researchers to use, enhance, and modify the test platform to meet specific test needs such as scaling channel count, transmitting and measuring in the mmWave frequencies, wide transmission and analysis bandwidth, and data capture for post-processing. The 5G channel sounding solution uses wideband signal correlation with switching at the transmitter and parallel acquisition at the receiver.
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