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Title:
METHOD, PRE-CODING DEVICE AND WIRELESS COMMUNICATION SYSTEM FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COLLABORATIVE COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2010/097050
Kind Code:
A1
Abstract:
A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system is provided. Said wireless communication system includes at least one user equipment and M base stations performing collaborative communication with said user equipment, wherein M is an integer that is greater than or equal to 2. Said method includes the following steps: for each user equipment, the following processings are executed: the first level MIMO pre-coding processing is performed for each base station to acquire each first level pre-coding matrix corresponding to each base station; the second level to the X level MIMO pre-coding processings are performed in turn to acquire the second level to the X level pre-coding matrices of the corresponding base stations, wherein X is an integer that is greater than or equal to 2. A pre-coding device, user equipment and wireless communication system related to said method are also provided. Said method increases system throughput of users at cell edge and improves communication efficiency.

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Inventors:
WANG JIAN (CN)
ZHANG YUANTAO (CN)
TIAN JUN (CN)
ZHOU HUA (CN)
Application Number:
PCT/CN2010/070770
Publication Date:
September 02, 2010
Filing Date:
February 26, 2010
Export Citation:
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Assignee:
FUJITSU LTD (JP)
WANG JIAN (CN)
ZHANG YUANTAO (CN)
TIAN JUN (CN)
ZHOU HUA (CN)
International Classes:
H04L1/06
Domestic Patent References:
WO2008157147A12008-12-24
WO2008124535A22008-10-16
WO2008151534A12008-12-18
Foreign References:
CN101373998A2009-02-25
CN101304301A2008-11-12
CN101136718A2008-03-05
US20080260064A12008-10-23
US20070248172A12007-10-25
KR20060111238A2006-10-26
US20060239222A12006-10-26
CN101039137A2007-09-19
Other References:
See also references of EP 2403177A4
AYMAN F. NAGUID, VAHID TAROKH, NAMBIRAJAN SESHADRI, A. ROBERT CALDERBANK: "A Space-Time Coding Modem for High-Data-Rate Wireless Communications", IEEE JSAC, vol. 16, no. 8, October 1998 (1998-10-01), pages 1459 - 1478
V. TAROKH, N. SESHADRI, A. R. CALDERBANK: "Space-time codes for high data rate wireless communication: performance criterion and code construction", IEEE TRANS. INFORM. THEORY, vol. 44, March 1998 (1998-03-01), pages 744 - 765
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (Scitech PlaceNo.22, Jian Guo Men Wai Ave.,Chao Yang District, Beijing 4, CN)
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