Presentation	2008-11-19 Requirements and Technologies for LTE-Advanced Radio Access Motohiro Tanno, Yoshihisa Kishimaya, Hidekazu Taoka, Nobuhiko Miki, Kenichi Higuchi, Mamoru Sawahashi,
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Abstract(in English)	This paper presents the requirements and its technical background for Long Term Evolution (LTE)-Advanced, which is the candidate radio interface for IMT-Advanced in the 3^ Generation Partnership Project (3GPP) as well as an advanced radio interface of LTE. The minimum requirement for LTE-Advanced is to meet or exceed the IMT-Advanced requirements within the International Telecommunication Union Radiocommunication sector (ITU-R) time plan and LTE-Advanced is aiming at a much higher system performance than that for LTE. In addition, backward compatibility with LTE is one of the most important requirements for a smooth introduction. We propose Layered Orthogonal Frequency Division Multiple Access (OFDMA) to satisfy these requirements. Layered OFDMA comprises layered transmission bandwidth assignment, support for layered environments, and a layered control signaling structure, and can efficiently support a wider bandwidth maintaining the backward compatibility with LTE and achieve a higher system performance according to various radio environments. Furthermore, we propose a duplex scheme employing asymmetric transmission bandwidth, inter-cell fast radio resource management to achieve inter-cell orthogonality, enhanced multiple antenna transmission/reception scheme, and enhanced techniques to extend coverage area as key radio access techniques to satisfy the requirements.
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Keyword(in English)	IMT-Advanced / LTE-Advanced / requirements / Layered OFDMA
Paper #	RCS2008-136
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Committee	RCS
Conference Date	2008/11/12(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Requirements and Technologies for LTE-Advanced Radio Access
Sub Title (in English)
Keyword(1)	IMT-Advanced
Keyword(2)	LTE-Advanced
Keyword(3)	requirements
Keyword(4)	Layered OFDMA
1st Author's Name	Motohiro Tanno
1st Author's Affiliation	Radio Access Network Development Department, NTT DOCOMO, INC.()
2nd Author's Name	Yoshihisa Kishimaya
2nd Author's Affiliation	Radio Access Network Development Department, NTT DOCOMO, INC.
3rd Author's Name	Hidekazu Taoka
3rd Author's Affiliation	Radio Access Network Development Department, NTT DOCOMO, INC.
4th Author's Name	Nobuhiko Miki
4th Author's Affiliation	Radio Access Network Development Department, NTT DOCOMO, INC.
5th Author's Name	Kenichi Higuchi
5th Author's Affiliation	Department of Electrical Engineering, Tokyo University of Science
6th Author's Name	Mamoru Sawahashi
6th Author's Affiliation	Department of Knowledge Engineering, Musashi Institute of Technology
Date	2008-11-19
Paper #	RCS2008-136
Volume (vol)	vol.108
Number (no)	305
Page	pp.pp.-
#Pages	6
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