This article is part of the series 3GPP LTE and LTE Advanced.

Open Access Review Article

MIMO Technologies in 3GPP LTE and LTE-Advanced

Juho Lee1*, Jin-Kyu Han1 and Jianzhong(Charlie) Zhang2

Author Affiliations

1 Digital Media & Communications R&D Center, Samsung Electronics, 416, Maetan-3dong, Yeongtong-gu, Suwon-si 443-742, South Korea

2 Wireless System Lab, Samsung Telecom America, 1301 E. Lookout Drive, Richardson, TX 75082, USA

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EURASIP Journal on Wireless Communications and Networking 2009, 2009:302092 doi:10.1155/2009/302092


The electronic version of this article is the complete one and can be found online at: http://jwcn.eurasipjournals.com/content/2009/1/302092


Received:13 February 2009
Accepted:31 May 2009
Published:14 July 2009

© 2009 The Author(s).

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

3rd Generation Partnership Project (3GPP) has recently completed the specification of the Long Term Evolution (LTE) standard. Majority of the world's operators and vendors are already committed to LTE deployments and developments, making LTE the market leader in the upcoming evolution to 4G wireless communication systems. Multiple input multiple output (MIMO) technologies introduced in LTE such as spatial multiplexing, transmit diversity, and beamforming are key components for providing higher peak rate at a better system efficiency, which are essential for supporting future broadband data service over wireless links. Further extension of LTE MIMO technologies is being studied under the 3GPP study item "LTE-Advanced" to meet the requirement of IMT-Advanced set by International Telecommunication Union Radiocommunication Sector (ITU-R). In this paper, we introduce various MIMO technologies employed in LTE and provide a brief overview on the MIMO technologies currently discussed in the LTE-Advanced forum.

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