CPC H04W 56/00 (2013.01) [H04W 72/02 (2013.01)] | 6 Claims |
1. A method for communication by a base station in a wireless communication system, the method comprising:
transmitting configuration information related to an auxiliary uplink carrier of a cell, wherein a frequency band of a main uplink carrier of the cell is higher than a frequency band of the auxiliary uplink carrier of the cell; and
performing a random access procedure for the cell with a terminal,
wherein performing the random access procedure for the cell comprises:
performing the random access procedure for the cell using the auxiliary uplink carrier based on not explicitly signaling an uplink carrier among the main uplink carrier and the auxiliary uplink carrier to use for the random access procedure, the cell being configured with the auxiliary uplink carrier and a radio condition of the terminal for the cell related to path loss being less than a threshold; and
performing the random access procedure for the cell using the main uplink carrier based on the radio condition being not less than the threshold.
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