A method for transmitting data includes generating a plurality of first data frames based on the same type of data content, wherein the plurality of first data frames have the same traffic identifier (TID), and the plurality of first data frames having the same TID have the same access media priority in a plurality of transmission links; and transmitting the plurality of first data frames having the same TID using the plurality of transmission links. An apparatus for performing the method may include a terminal in a wireless communication network.