BASE STATION
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United States of America Patent
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app pub date -
Jul 26, 2017
filing date -
Jan 30, 2015
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Abstract
A base station according to an embodiment has a first cell in a licensed band and a second cell in an unlicensed band. The base station comprises: controller configured to execute control to transmit a discovery reference signal in the second cell. The controller executes: control to confirm whether or not there is an available channel in the unlicensed band, before transmitting the discovery reference signal; and control to transmit the discovery reference signal in the available channel in the unlicensed band. The discovery reference signal includes a cell-specific reference signal, a primary synchronization signal, a secondary synchronization signal, and a channel-state-information reference signal.
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