METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS

Title:

METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS

Document Type and Number:

WIPO Patent Application WO/2012/044021

Kind Code:

A3

Abstract:

The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas. According to one embodiment of the present invention, a method for transmitting channel state information for downlink multicarrier transmission comprises the following steps: generating channel state information for one or more downlink carriers; if two or more channel state information types for one or more downlink carriers collide in a physical uplink control channel (PUCCH) region of one uplink carrier, determining the channel state information type to be transmitted in the PUCCH region of one uplink carrier on the basis of the priority established in accordance with the reporting period of each piece of channel state information; and transmitting the channel state information corresponding to the determined channel state information type, wherein the priority may be established such that the channel state information having a longer reporting period has a higher priority than that of the channel state information having a shorter reporting period.

Inventors:

KO HYUNSOO (KR)
LEE MOONIL (KR)
CHUNG JAEHOON (KR)

Application Number:

PCT/KR2011/007060

Publication Date:

May 31, 2012

Filing Date:

September 26, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

LG ELECTRONICS INC (KR)
KO HYUNSOO (KR)
LEE MOONIL (KR)
CHUNG JAEHOON (KR)

International Classes:

H04B7/04; H04B7/26; H04L1/06; H04L27/26

Foreign References:

US20090190528A1	2009-07-30
US20100098012A1	2010-04-22
US20100238984A1	2010-09-23

Other References: