Title:
METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BANDS, AND APPARATUS SUPPORTING SAME
Document Type and Number:
WIPO Patent Application WO/2016/105132
Kind Code:
A1
Abstract:
The present invention relates to a wireless access system that supports unlicensed bands, and relates to a method for reporting channel state information when a partial subframe (pSF) is formed. A method of user equipment (UE) reporting channel state information (CSI) in a wireless access system that supports unlicensed bands according to an embodiment of the present invention may comprise the steps of: receiving a downlink burst configured to an unlicensed band cell (U cell) supporting unlicensed bands as far as a certain subframe; measuring CSI with respect to the downlink burst; and reporting the measured CSI to a base station. In this regard, if a pSF is included in the downlink burst, the UE does not consider the pSF to be a valid downlink subframe for CSI measurement, and the pSF may be formed to have a smaller size than a general subframe.
Inventors:
KIM SEONWOOK (KR)
AHN JOONKUI (KR)
LEE SEUNGMIN (KR)
KIM KIJUN (KR)
YANG SUCKCHEL (KR)
SEO HANBYUL (KR)
PARK JONGHYUN (KR)
YOU HYANGSUN (KR)
AHN JOONKUI (KR)
LEE SEUNGMIN (KR)
KIM KIJUN (KR)
YANG SUCKCHEL (KR)
SEO HANBYUL (KR)
PARK JONGHYUN (KR)
YOU HYANGSUN (KR)
Application Number:
PCT/KR2015/014196
Publication Date:
June 30, 2016
Filing Date:
December 23, 2015
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04B7/26; H04B7/06; H04L5/00
Domestic Patent References:
| WO2014073776A1 | 2014-05-15 |
Foreign References:
| US20140071931A1 | 2014-03-13 |
Other References:
LG ELECTRONICS: "Data Scheduling and Control Signaling in LAA", R1-144904, 3GPP TSG RAN WG1 MEETING #79, 8 November 2014 (2014-11-08), San Francisco, USA, XP050885566
LG ELECTRONICS: "CSI Feedback and Handling Interference Variation in Unlicensed Band", R1-144902, 3GPP TSG RAN WG1 MEETING #79, 8 November 2014 (2014-11-08), San Francisco, USA, XP050885564
FUJITSU: "Way Forward on CSI reporting for CA", R1-111940, 3GPP TSG-EAN1#65, 16 May 2011 (2011-05-16), Barcelona, Spain, XP050491568
See also references of EP 3240207A4
LG ELECTRONICS: "CSI Feedback and Handling Interference Variation in Unlicensed Band", R1-144902, 3GPP TSG RAN WG1 MEETING #79, 8 November 2014 (2014-11-08), San Francisco, USA, XP050885564
FUJITSU: "Way Forward on CSI reporting for CA", R1-111940, 3GPP TSG-EAN1#65, 16 May 2011 (2011-05-16), Barcelona, Spain, XP050491568
See also references of EP 3240207A4
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
김용인 (KR)
김용인 (KR)
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