Title:
METHODS AND DEVICES FOR TRANSMITTING/RECEIVING DISCOVERY SIGNAL IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BAND
Document Type and Number:
WIPO Patent Application WO/2017/069571
Kind Code:
A1
Abstract:
The embodiments of the present invention relate to a wireless access system supporting an unlicensed band and to methods for generating a discovery signal (DRS), methods for generating and transmitting a channel state information reference signal included in the DRS, and devices for supporting same. The method for transmitting a discovery signal (DRS) including a channel state information reference signal (CSI-RS) in a wireless access system supporting an unlicensed band, according to one embodiment of the present invention, may comprise the steps of: initiating, in subframe n (SF #n), a listen-before-talk (LBT) procedure for checking whether the unlicensed band is idle or not; if an LBT procedure succeeds in SF #n+k, generating a sequence for transmitting the CSI-RS on the basis of the subframe index j indicating SF #j; and transmitting the DRS, including the CSI-RS, in SF #n+k. Here, n, k, and j are preferably integers greater than or equal to 0 and less than or equal to 9.
Inventors:
KIM SEONWOOK (KR)
AHN JOONKUI (KR)
KIM KIJUN (KR)
PARK JONGHYUN (KR)
PARK HANJUN (KR)
YI YUNJUNG (KR)
AHN JOONKUI (KR)
KIM KIJUN (KR)
PARK JONGHYUN (KR)
PARK HANJUN (KR)
YI YUNJUNG (KR)
Application Number:
PCT/KR2016/011912
Publication Date:
April 27, 2017
Filing Date:
October 21, 2016
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04J11/00; H04W74/08
Domestic Patent References:
| WO2015038908A1 | 2015-03-19 | |||
| WO2013109036A1 | 2013-07-25 |
Foreign References:
| KR20140105031A | 2014-08-29 | |||
| US20140334320A1 | 2014-11-13 |
Other References:
LG ELECTRONICS: "DRS Design in LAA", R1-154264, 3GPP TSG RAN WG1 MEETING #82, 14 August 2015 (2015-08-14), Beijing, China, XP050993748
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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