Title:
METHOD AND DEVICE FOR FEEDING BACK CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTI-INPUT MULTI-OUTPUT SCHEME
Document Type and Number:
WIPO Patent Application WO/2014/014167
Kind Code:
A1
Abstract:
The present invention relates to a wireless communication system and, more particularly, to a method and device for compressing and feeding back channel information in a wireless communication system supporting a multi-input multi-output (MIMO) scheme. A method for feeding back channel information by a terminal in a wireless communication system supporting a MINO scheme, according to one embodiment of the present invention, can comprise the steps of: calculating a channel matrix on the basis of a reference signal received from a base station; calculating a first valid channel vector by using a reception weight vector and the channel matrix; and calculating a second valid channel vector by setting a coefficient corresponding to each basis vector included in a basis matrix as 0 if the coefficient is a threshold or less when the first valid channel vector is factored by the basis matrix.
Inventors:
SON HYUKMIN (KR)
KIM JINMIN (KR)
CHUNG JAEHOON (KR)
KIM SUNAM (KR)
KIM JINMIN (KR)
CHUNG JAEHOON (KR)
KIM SUNAM (KR)
Application Number:
PCT/KR2012/009588
Publication Date:
January 23, 2014
Filing Date:
November 14, 2012
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04B7/04; H04J11/00
Foreign References:
| KR20090095275A | 2009-09-09 | |||
| US20120114064A1 | 2012-05-10 | |||
| US20110200081A1 | 2011-08-18 | |||
| US20090268827A1 | 2009-10-29 |
Attorney, Agent or Firm:
KIM, Yong In et al. (7th Floor Hyundae Building,175-9 Jamsil-dong, Songpa-ku, Seoul 138-861, KR)
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