KR101456008B1

5G,4G

Title

METHOD FOR APERIODIC FEEDBACK OF CHANNEL STATE INFORMATION IN A WIRELESS ACCESS SYSTEM SUPPORTING MULTI-CARRIER AGGREGATION

Application Number:

KR20127032770

Publication Date:

03-11-2014

Current Assignee:

LG

Family ID:

Application Date:

06-05-2011

Declaring Company:

LG

Publication Country:

US

Priority Date:

26-07-2010

Title

METHOD FOR APERIODIC FEEDBACK OF CHANNEL STATE INFORMATION IN A WIRELESS ACCESS SYSTEM SUPPORTING MULTI-CARRIER AGGREGATION

Application Number:

KR20127032770

Family ID:

Publication Country:

US

Publication Date:

03-11-2014

Application Date:

06-05-2011

Priority Date:

26-07-2010

Current Assignee:

LG

Declaring Company:

LG

Abstract  Abstract

The present invention relates to a wireless access system supporting multicarrier CA (CA) technology and discloses various methods and apparatus for non-periodically feeding back channel state information. In an embodiment of the present invention, a method of non-periodically feeding back channel state information (CSI) in a wireless access system supporting a multicarrier CA (CA) scheme includes receiving an aperiodic CSI request field and an uplink grant from a base station Receiving a first message and receiving a second message from the base station, the second message including bitmap information indicative of a downlink component carrier (DL CC) to be measured by the CSI, and transmitting the aperiodic CSI request field, Measuring CSI in consideration of one or more of the bitmap information, and transmitting the measured CSI to the base station through a physical uplink shared channel (PUSCH) in order to feedback non-periodically.