A PLMN SEARCHING METHOD FOR INTERNATIONAL ROAMING OF THE MOBILE COMMUNICATION TERMINAL

摘要

The present invention relates to roaming between heterogeneous networks, the mobile communication terminal, and more particularly, international roaming service a network for seamless roaming of a mobile communication terminal for providing a roaming service to the network is not preferred from the non-preferred network to search for a preferred network to the non-periodic case is the roaming network that is preferred in providing location register The object of the present invention is to provide a search method, ; The above-described search method for a roaming network of a mobile communication terminal of the present invention for achieving the purpose of roaming in a mobile communication terminal is currently connected to the network, the first process and the network is connected in the first process and a second process of determining whether the network is preferred that the non-preferred network, if the determination result of the non-preferred network, the second step the mobile terminal to perform repeating the third step and, if the network is found in the third preferred process of the third process, the drive is not detected after the timer performs the roaming and to retrieve the network periodically at the predetermined time in the non-preferred network, If the fourth step of performing, the network is the preferred result of the third search process performed by the rate found in the preferred roaming network, characterized by being made of a fifth process of stopping the timer.