User terminal and base station for performing uplink transmission in an unlicensed band
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United States of America Patent
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Jul 16, 2019
Grant Date -
Jan 25, 2018
app pub date -
Feb 5, 2016
filing date -
Feb 6, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A user terminal according to a first aspect is used in a mobile communication system. The user terminal comprises: a receiver configured to receive, from a base station, candidate timing information indicating candidate timings of an uplink transmission on an unlicensed band channel that is a frequency channel of an unlicensed band; a controller configured to determine, by monitoring the unlicensed band channel, a transmission timing at which the uplink transmission to the base station is performed, from the candidate timings indicated by the candidate timing information; and a transmitter configured to transmit, at the transmission timing, uplink data via the unlicensed band channel to the base station.
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