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1. (WO2017171350) METHOD FOR TRANSMITTING OR RECEIVING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

Pub. No.:    WO/2017/171350    International Application No.:    PCT/KR2017/003316
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: H04W 74/08
H04W 74/00
H04W 72/12
Applicants: LG ELECTRONICS INC.
엘지전자 주식회사
Inventors: LEE, Hyunho
이현호
PARK, Hanjun
박한준
YI, Yunjung
이윤정
AHN, Joonkui
안준기
KIM, Seonwook
김선욱
Title: METHOD FOR TRANSMITTING OR RECEIVING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR
Abstract:
A method for transmitting an uplink signal in an unlicensed band for a terminal configured to support multiple transmission time interval (TTI) lengths in a wireless communication system, according to one embodiment of the present invention, is performed by the terminal and may comprise the steps of: receiving a scheduling indication for multiple TTIs; according to the received scheduling indication, performing channel sensing in a clear channel assessment (CCA) gap for the multiple TTIs; and if channel sensing for at least one of the multiple TTIs is successful, transmitting, in a predetermined symbol, an uplink reference signal for the multiple TTIs.