Assessing measurement distances for OTA testing of massive MIMO base station at 28 GHz
Kyösti, Pekka; Fan, Wei; Kyröläinen, Jukka (2017-05-18)
P. Kyösti, W. Fan and J. Kyröläinen, "Assessing measurement distances for OTA testing of massive MIMO base station at 28 GHz," 2017 11th European Conference on Antennas and Propagation (EUCAP), Paris, 2017, pp. 3679-3683. doi: 10.23919/EuCAP.2017.7928364
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https://urn.fi/URN:NBN:fi-fe2019040411056
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Abstract
This paper discusses physical dimensions for a multi probe anechoic chamber based (MPAC) over-the-air (OTA) setup aiming for base station (BS) testing. The target frequency of the simulated massive multiple-input-multiple-output (MIMO) BS arrays is 28 GHz. The assessment is performed with two metrics. The first metric is a new power metric based on assumptions of a code book of fixed beams and planar waves. The second one is the multi-user (MU) MIMO sum rate capacity. The intention is to evaluate physical dimensions in metres with respect to different BS array sizes. Simulation results indicate that OTA performance of a BS array with maximum dimension of 0.15m could be measured with a setup having measurement distance of approximately 1m.
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