A radio communication terminal according to the present invention selects any one of a first session setting mode and a second session setting mode depending on a communication condition of the radio communication terminal. If the first session setting mode is selected, an auxiliary service instance and a main service instance are set on the same radio communication channel. If the second session setting mode is selected, a radio communication channel dedicated for an auxiliary service instance is set and the auxiliary service instance is set on the thus set radio communication channel.