METHOD FOR PERFORMING A LOGICAL CHANNEL PRIORITIZATION IN A CARRIER AGGREGATION WITH AT LEAST ONE SCELL OPERATING IN AN UNLICENSED SPECTRUM AND A DEVICE THEREFOR

摘要

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a LCP procedure in a carrier aggregation, the method comprising: configuring with a first cell group including at least one first cell and a second cell group including at least one second cell served by an eNB; configuring two or more logical channels, wherein each of the two or more logical channels has respective logical channel priority for a LCP procedure; receiving a UL grant from the first cell or the second cell; performing a LCP procedure to the two or more logical channels in decreasing priority order when the UL grant is received from the first cell; and performing a LCP procedure to the two or more logical channels in increasing priority order when the UL grant is received from the second cell.