Patent ID: 6687901
Filing Date: 2004-02-03
Classification: G06F

Abstract:
A method for updating software in a radio terminal device of a mobile communication system, wherein a base station and a radio terminal device are connected mutually through radio communication channels, comprising the steps of:notifying version information on a control-software presently involved in operations of said radio terminal device to a software-supply device connected to a network by said radio terminal device; determining a necessity of updating said control-software by comparing the version information received from said radio terminal device with latest version information stored in and managed by said software-supply device; utilizing the control-software presently involved to download new control-software into a buffer memory of said radio terminal device that is appropriate to update the version of said control-software presently involved, and subsequently utilizing an update-software of said mobile radio terminal device to update said control-software presently involved with said new control-software stored in said buffer memory, if updating of said control-software is needed.