RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD
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United States of America Patent
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Jan 29, 2016
filing date -
Jan 29, 2015
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Abstract
The present invention is designed to optimize the RRM measurements in a carrier where an LBT function is applied. A radio base station executes LBT (Listen Before Talk) in an unlicensed carrier, acquires an LBT result, determines the timing to measure a DRS (Discovery Reference Signal) that is transmitted in the unlicensed carrier, and transmits the LBT result and the measurement timing to a user terminal, and the user terminal receives the LBT result and the DRS measurement timing from the radio base station, and detects the unlicensed carrier by measuring the DRS that is transmitted in the unlicensed carrier based on the LBT result, based on the LBT result and the measurement timing.
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