METHOD FOR REPORTING CHANNEL STATE, AND DEVICE THEREFOR

Title:

METHOD FOR REPORTING CHANNEL STATE, AND DEVICE THEREFOR

Document Type and Number:

WIPO Patent Application WO/2016/018100

Kind Code:

A1

Abstract:

According to one embodiment of the present invention, a method for reporting a channel state of a downlink channel transmitted through two-dimensionally arranged Nt number of antenna ports is carried out by a terminal, wherein the method comprises the steps of: configuring each of the Nt number of antenna ports to be mapped to all antenna elements belonging to a specific antenna element group, and each antenna port of an antenna port group corresponding to a reference signal (RS), which is transmitted in the same OFDM symbol, to be mapped to different antenna element groups from each other, and receiving a channel state information (CSI)-RS configuration for reporting a channel state for the antenna port group; and calculating channel state information on a downlink channel through a CSI-RS received using the received CSI-RS configuration, and reporting, to a serving cell, the calculated channel state information, wherein the reported channel state information can contain a precoding matrix for selecting an antenna port group and a precoding matrix to be applied to the selected antenna port group.

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Inventors:

KIM KIJUN (KR)
PARK JONGHYUN (KR)
KIM BONGHOE (KR)

Application Number:

PCT/KR2015/007995

Publication Date:

February 04, 2016

Filing Date:

July 30, 2015

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04B7/06; H04L5/00

Foreign References:

KR20140057005A	2014-05-12
US20140098689A1	2014-04-10
US20120058791A1	2012-03-08
US20130163544A1	2013-06-27
US20110249637A1	2011-10-13

Other References: