Title:
TRANSMISSION DEVICE, RECEPTION DEVICE, CONTROL STATION, COMMUNICATION SYSTEM, AND TRANSMISSION PRECODING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/006642
Kind Code:
A1
Abstract:
A transmission device (1) according to the present invention is provided with: transmission antennae (15-1 to 15-T) capable of forming a plurality of beams directed at each of a plurality of terminals; and a precoder unit (12) for precoding signals to be transmitted from the transmission antennae (15-1 to 15-T) such that reception powers in the plurality of terminals excluding desired terminals serving as transmission destinations of the transmission signals, and at least two IUI terminals other than the desired terminals, become not more than a threshold value.
Inventors:
NISHIMOTO HIROSHI (JP)
TAIRA AKINORI (JP)
TAIRA AKINORI (JP)
Application Number:
PCT/JP2016/065638
Publication Date:
January 12, 2017
Filing Date:
May 26, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04J99/00; H04B7/04; H04B7/10; H04W16/28
Other References:
TOMOKI SADA ET AL.: "A Generalized Approach to Block Diagonalization for Multiuser MIMO Downlink", 21ST ANNUAL IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND RADIO COMMUNICATIONS, 30 September 2010 (2010-09-30), pages 504 - 509, XP031838168
TOMOKI SADA ET AL.: "An Evaluation of Transmit Diversity Gain in Generalized Block Diagonalization for Multiuser MIMO Downlink", 2011 NEN THE IEICE GENERAL CONFERENCE (TSUSHIN KOEN RONBUNSHU 1, 17 March 2011 (2011-03-17), pages 477
SHOHEI KATO ET AL.: "Imperfect Block Diagonalization for Downlink Multiuser MIMO Systems", IEICE TECHNICAL REPORT. RCS, MUSEN TSUSHIN SYSTEM, 27 February 2008 (2008-02-27), pages 329 - 334, XP031371637
YUICHI KITAMURA ET AL.: "Performance Evaluation of Muting-Based Partially Non-Orthogonal Block Diagonalization in Multiuser MIMO with Limited Channel State Information Feedback", 2011 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE (TSUSHIN KOEN RONBUNSHU 1, 16 September 2011 (2011-09-16), pages 412, XP009502639
See also references of EP 3261277A4
TOMOKI SADA ET AL.: "An Evaluation of Transmit Diversity Gain in Generalized Block Diagonalization for Multiuser MIMO Downlink", 2011 NEN THE IEICE GENERAL CONFERENCE (TSUSHIN KOEN RONBUNSHU 1, 17 March 2011 (2011-03-17), pages 477
SHOHEI KATO ET AL.: "Imperfect Block Diagonalization for Downlink Multiuser MIMO Systems", IEICE TECHNICAL REPORT. RCS, MUSEN TSUSHIN SYSTEM, 27 February 2008 (2008-02-27), pages 329 - 334, XP031371637
YUICHI KITAMURA ET AL.: "Performance Evaluation of Muting-Based Partially Non-Orthogonal Block Diagonalization in Multiuser MIMO with Limited Channel State Information Feedback", 2011 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE (TSUSHIN KOEN RONBUNSHU 1, 16 September 2011 (2011-09-16), pages 412, XP009502639
See also references of EP 3261277A4
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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