3D Beamforming: Performance Improvement for Cellular Networks

被引：72

作者：

Halbauer, Hardy ^{[1
]}

Saur, Stephan ^{[1
,2
]}

Koppenborg, Johannes ^{[3
,4
]}

Hoek, Cornelis ^{[1
,5
]}

机构：

[1] Bell Labs, Stuttgart, Germany

[2] Univ Stuttgart, Inst Commun, Stuttgart, Germany

[3] Bell Labs Access Technol Res Domain, Stuttgart, Germany

[4] Radio Res Dept, Stuttgart, Germany

[5] SEL, Stuttgart, Germany

来源：

BELL LABS TECHNICAL JOURNAL | 2013年 / 18卷 / 02期

关键词：

MIMO systems - Long Term Evolution (LTE) - Beamforming - Beam forming networks - Medium access control - Network layers - Wireless networks;

D O I：

10.1002/bltj.21604

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The beam pattern of a mobile communication base station has significant impact on the performance of a cellular network. Three-dimensional (3D) beamforming combines the horizontal beam pattern adaptation, as applied for beamforming and multiple input multiple output (MIMO) schemes, with a vertical antenna pattern adaptation. The recent availability of new flexible antenna techniques enables a fully dynamic antenna pattern adaptation which can be specified per resource block and user equipment (UE), and makes 3D beamforming practically feasible. This paper describes the basic principles of 3D beamforming, including the impact of downtilt adaptation on the physical layer as well as the potential of its combination with beam coordination involving the media access control (MAC) layer. Our investigations assumed the vertical main lobe of the beam pattern was geometrically pointed towards the UE. We discuss a number of different realization options and simulation results including a Bell Labs field trial with vertical beam steering. Using wireless systems with state of the art Long Term Evolution (LTE) signal format and including the lightRadio antenna array, our trials in the Stuttgart testbed verified the basic predicted properties and potential advantages of 3D beamforming. (c) 2013 Alcatel-Lucent.

引用

页码：37 / 56

页数：20

共 11 条

[1]

3rd Generation Partnership Project, 2012, 36211 3GPP TS

[2]

[Anonymous], 2010, 36814 3GPP TR

[3]

Bolcskei H.G., 2006, Space-time wireless systems: from array processing to MIMO communications

[4] Propagation over clutter: Physical stochastic model [J].

Chizhik, Dmitry ;

Ling, Jonathan .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2008, 56 (04) :1071-1077

[5]

ECKHARDT H, 2011, P IEEE 73 VEH TECHN

[6] INTERFERENCE-AVOIDANCE TECHNIQUES Improving Ubiquitous User Experience [J].

Gresset, Nicolas ;

Halbauer, Hardy ;

Koppenborg, Johannes ;

Zirwas, Wolfgang ;

Khanfir, Hajer .

IEEE VEHICULAR TECHNOLOGY MAGAZINE, 2012, 7 (04) :37-45

[7]

HALBAUER H, 2013, P 17 INT ITG WORKSH

[8]

Halbauer H, 2012, 2012 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE WORKSHOPS (WCNCW), P294, DOI 10.1109/WCNCW.2012.6215509

[9]

Koppenborg J., 2012, 2012 International ITG Workshop on Smart Antennas (WSA), P110, DOI 10.1109/WSA.2012.6181190

[10]

Marsch P., 2011, COORDINATED MULTIPOI, P403

← 1 2 →