Practical Channel Acquisition for Massive MIMO Systems in LTE

被引：0
|
作者：
Chen, Runhua [1 ]
Gao, Qiubin [1 ]
Li, Hui [1 ]
Tamrakar, Rakesh [1 ]
Sun, Shaohui [1 ]
机构：
[1] CATT, State Key Lab Wireless Mobile Commun, Beijing, Peoples R China
来源：
2015 INTERNATIONAL CONFERENCE ON COMPUTING, NETWORKING AND COMMUNICATIONS (ICNC) | 2015年
关键词：
massive MIMO; CSI; feedback; LTE; MULTIUSER MIMO; NETWORKS; ANTENNAS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, practical CSI acquisition methods for massive MIMO systems are investigated. The implementation issues of channel reciprocity based feedback in TDD are discussed, and a two-dimension feedback mechanism for FDD is proposed where the horizontal and vertical domain channels are reported separately. System level evaluation results demonstrate that massive MIMO with the two-dimensional feedback mechanism provides realistic gains over antenna virtualization beamforming, whereas additional gain is feasible through UL/DL channel reciprocity.
引用
收藏
页码：47 / 51
页数：5
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