1. A method for a user equipment (UE) operating in a wireless communication system, the method comprising:configuring a plurality of cells;
receiving information indicating a mapping relation between types of data and the plurality of cells;
transmitting a first data only on at least one cell which is mapped to a first type of data according to the information, when the first data belongs to the first type of data; and
transmitting a second data on any cell of the plurality of cells when the second data doesn't belong to the types of data of the information.