Experimental evaluation of advanced beam tracking with CSI acquisition for 5G radio access

This paper presents indoor and outdoor experimental results on 4-by-8 single-user (SU)-multiple-input multiple-output (MIMO) multiplexing based on 730.5 MHz bandwidth transmission when applying carrier aggregation (CA) with 8 component carriers (CCs) in a 15 GHz frequency band in the downlink of 5G...

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Bibliographic Details
Published in:IEEE International Conference on Communications (2003) pp. 1 - 6
Main Authors: Tateishi, Kiichi, Kurita, Daisuke, Harada, Atsushi, Kishiyama, Yoshihisa, Itoh, Shoji, Murai, Hideshi, Schrammar, Nicolas, Simonsson, Arne, Okvist, Peter
Format: Conference Proceeding
Language:English
Published: IEEE 01.05.2017
Subjects:
5G mobile communication
Antennas
beam tracking
beamforming
CSI
Downlink
experiments
massive MIMO
MIMO
OFDM
Synchronization
TDD
ISSN:1938-1883
Online Access:Get full text
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Summary:This paper presents indoor and outdoor experimental results on 4-by-8 single-user (SU)-multiple-input multiple-output (MIMO) multiplexing based on 730.5 MHz bandwidth transmission when applying carrier aggregation (CA) with 8 component carriers (CCs) in a 15 GHz frequency band in the downlink of 5G cellular radio access. Beam tracking with massive MIMO is implemented in a 5G testbed to support user mobility with a narrow beam. In addition, channel state information (CSI) acquisition functionality is implemented for the scheduler to select appropriate beams. Experimental results in an indoor multi-path rich environment show the gain up to 34 % with CSI acquisition compared to the case of without CSI acquisition in a line-of-sight (LoS) environment with high rank MIMO transmission. The results also show the gain up to 55 % with CSI acquisition compared to the case of without CSI acquisition in LoS conditions due to reflections by buildings.
ISSN:1938-1883
DOI:10.1109/ICC.2017.7996953