Title:
MIMO方式の無線通信システム及び無線通信装置
Document Type and Number:
Japanese Patent JP4212976
Kind Code:
B2
Abstract:
A wireless communication apparatus, that is employed in a multiple-input-multiple-output wireless communication system, comprises: a plurality of antenna units that transmit or receive a radio frequency signal; and a weight controlling unit that gives a weight with respect to each of the plurality of antenna units; at least one of the plurality of antenna units being formed by an adaptive array antenna unit that has a plurality of antenna elements, and directivity being changed by varying weights with respect to each of the plurality of antenna elements.
Inventors:
Yuta Nakatani
Ken Toda
Yasuyuki Oishi
Yokoo Iku
Ken Toda
Yasuyuki Oishi
Yokoo Iku
Application Number:
JP2003200446A
Publication Date:
January 21, 2009
Filing Date:
July 23, 2003
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04B7/10; H04B7/04; H04J99/00; H04B7/08; H04B7/26; H04W16/28; H04B7/06
Domestic Patent References:
| JP2003338781A |
Foreign References:
| WO2002093779A1 | ||||
| WO2002103926A1 |
Other References:
Boukalov, A.; Aifeng, R.; Halme, S.J.;,New cellular wireless system concept for very high bit rate data transmission with smart antennas at the mobile and base station,Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE,2000年 9月10日,Page(s):17 - 23
Attorney, Agent or Firm:
Tadahiko Ito