Field experimental evaluation of higher rank MIMO in quad-directional UE antenna configuration for 5G radio access system

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI:10.1109/WPMC.2017.8301872

Yuta Takahashi, Y. Inoue, Shohei Yoshioka, Y. Kishiyama, S. Suyama, Jun Mashino, Y. Okumura, Tsuneomi Haruna, Takeshi Tanaka, A. Splett, Henrik Liljestrom

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引用次数: 6

Abstract

This paper presents field experiments on the downlink performance of a 5G radio access system employing higher rank MIMO in the quad-directional antenna configuration at UE side comparing the uni-directional antenna configuration in typical small cell environments. Each antenna branch of the quad-directional antenna directs for intervals of 90 degrees in horizontal plane. The results show Rank-8 transmission performance is better compare to the uni-directional antenna configuration even the antenna gain is degraded, because the spatial correlation of UE becomes low using the quad-directional antenna in the environment has many complex reflection paths. And also it shows the stable performance of throughput about the dependency of the UE antenna direction. The antenna covers omni direction with combining all antenna branches and the spatial correlation is low compare to the uni-directional antenna. The performance is tradeoff of degradation of the total antenna gain.

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5G无线接入系统四向UE天线配置中高阶MIMO的现场实验评估

本文对采用高阶MIMO的5G无线接入系统在终端侧的四向天线配置下的下行性能进行了现场实验，并与典型小小区环境下的单向天线配置进行了比较。四向天线的每个天线分支在水平面上指向90度的间隔。结果表明，由于在有许多复杂反射路径的环境中，使用四向天线会使UE的空间相关性降低，即使天线增益降低，但Rank-8的传输性能也优于单向天线配置。并且表明了终端天线方向的依赖性对吞吐量的稳定性能。该天线采用多支路组合的方式覆盖全方向，与单向天线相比空间相关性较低。性能是对天线总增益衰减的权衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)

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