JP2015092702A

5G,4G

Title

NON-PERIODICAL CHANNEL STATE INFORMATION FEEDBACK METHOD IN WIRELESS CONNECTION SYSTEM FOR SUPPORTING MULTI-CARRIER AGGREGATION

Application Number:

JP20140252890

Publication Date:

14-05-2015

Current Assignee:

LG

Family ID:

Application Date:

15-12-2014

Declaring Company:

LG

Publication Country:

US

Priority Date:

26-07-2010

Title

NON-PERIODICAL CHANNEL STATE INFORMATION FEEDBACK METHOD IN WIRELESS CONNECTION SYSTEM FOR SUPPORTING MULTI-CARRIER AGGREGATION

Application Number:

JP20140252890

Family ID:

Publication Country:

US

Publication Date:

14-05-2015

Application Date:

15-12-2014

Priority Date:

26-07-2010

Current Assignee:

LG

Declaring Company:

LG

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide a non-periodical channel state information feedback method suitable in a wireless connection system for supporting multi-carrier aggregation.

SOLUTION: A method for allowing a terminal to non-periodically feed back CSI(Channel State Information) in a wireless connection system for supporting a CA(Carrier Aggregation) system includes: receiving a first message including a non-periodical CSI request field and an uplink grant from a base station; receiving a second message including bit map information indicating a DL CC(Downlink Component Carrier) as the measurement target of the CSI; measuring the CSI under the consideration of one or more of the non-periodical CSI request field the uplink grant and the bit map information; and transmitting the measured CIS via PUSCH(Physical Uplink Shared Channel) to the base station for non-periodical feedback.