Title:
METHOD FOR UPLINK CHANNEL ACCESS TO UNLICENSED BAND IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/164647
Kind Code:
A1
Abstract:
The present invention relates to a method by which a terminal performs uplink transmission to a base station through an unlicensed cell in a wireless communication system. Particularly, the present invention comprises the steps of: receiving, from the base station, an uplink grant for scheduling the uplink transmission in at least one subframe; and performing the uplink transmission in the at least one subframe by using a first type channel access and/or a second type channel access, wherein the uplink transmission is performed by using the second type channel access when all of the at least one subframe is included in a predetermined interval determined on the basis of a downlink transmission through the unlicensed cell from the base station.
Inventors:
NOH MINSEOK (KR)
KWAK JINSAM (KR)
SON JUHYUNG (KR)
KWAK JINSAM (KR)
SON JUHYUNG (KR)
Application Number:
PCT/KR2017/003084
Publication Date:
September 28, 2017
Filing Date:
March 22, 2017
Export Citation:
Assignee:
WILUS INST STANDARDS & TECHNOLOGY INC (KR)
International Classes:
H04W74/08; H04L27/26; H04W72/12; H04W72/14; H04W74/00; H04W84/12
Domestic Patent References:
| WO2011062393A2 | 2011-05-26 | |||
| WO2016013781A1 | 2016-01-28 |
Foreign References:
| US20150341921A1 | 2015-11-26 | |||
| US20140362780A1 | 2014-12-11 |
Other References:
"Category 4 Based LBT Design for LAA Downlink", R1-152646, 3GPP TSG RAN WG1 RAN1#81, 16 May 2015 (2015-05-16), Fukuoka, Japan, XP050972881, Retrieved from the Internet
See also references of EP 3435725A4
See also references of EP 3435725A4
Attorney, Agent or Firm:
LIM, Kukil (KR)
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