Disclosed is a network connection method using a virtual UE system, comprising: establishing a connection with a base station with respect to a first DU group comprising one or more DUs; requesting a base station for an establishment of a connection with a second DU group comprising one or more Dus through an uplink channel assigned to the first DU group; and transmitting, to the base station through the uplink channel assigned to the second DU group, information informing that the connection with the second group has been established.