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|1. (WO2017171350) METHOD FOR TRANSMITTING OR RECEIVING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR|
|Applicants:||LG ELECTRONICS INC.
|Title:||METHOD FOR TRANSMITTING OR RECEIVING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR|
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.