Modular Concepts for Practical Massive MIMO Implementations

The Massive MIMO principle is becoming a standard component of 5G cellular communications. 5G New Radio (NR) supports beamforming, beam-adjustment and beam-sweeping techniques. This increases data rates and adds flexibility for resource allocation, even in lower frequency bands below 6 GHz. In this...

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Bibliographic Details
Main Authors: Wirth, Thomas, Haustein, Thomas, Forck, Andreas, Gabler, Holger, Kruger, Kirsten, Kruger, Udo, Braz, Oliver, Schieblich, Christian
Format: Conference Proceeding
Language:English
Subjects:
Array signal processing
Interference
Massive MIMO
New Radio
Prototypes
Resource management
Wireless communication
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Summary:The Massive MIMO principle is becoming a standard component of 5G cellular communications. 5G New Radio (NR) supports beamforming, beam-adjustment and beam-sweeping techniques. This increases data rates and adds flexibility for resource allocation, even in lower frequency bands below 6 GHz. In this paper, we give details on a Massive MIMO prototype, which was engineered at Fraunhofer Heinrich Hertz Institute for testing of novel radio techniques. Furthermore, we show results for beamforming and beam-nulling of real measurements performed with this hardware prototype in an outdoor environment operating in the 2.6 GHz band. Finally, we evaluate the inter-beam interference in a multi-beam scenario with spatially close beams.
ISSN:2164-2974
DOI:10.1109/RWS45077.2020.9050028