Abstract: A method of preventing call drop in a mobile terminal when a serving radio network subsystem SRNS relocation to a target RNC from a source RNC is performed includes (a) receiving a control message in accordance with start of the SRNS relocation from the target RNC, (b) performing a RLC configuration procedure, (c) transmitting a complete message in accordance with the RLC configuration procedure to the target RNC, and (d) retransmitting the complete message to the target RNC in case that RLC reset is performed after the complete message is transmitted. As a result, call drop by exceptional case while the SRNS relocation is performed may be prevented.

Abstract: A slide type mobile terminal according to an aspect of the invention comprises: a main body having buttons and a slide part having a display, wherein the buttons comprise at least one open button that is open to the exterior and at least one hidden button that is not open to the exterior when the slide part is opened with respect to the main body, the slide part comprises at least one push protrusion corresponding with at least the hidden button, and the main body and the slide part are joined by a connection means which allows sliding of the slide part with respect to the main body. With such a composition, the invention allows for a larger display on the slide part and provides a slide type mobile terminal which can have various functional buttons.

Abstract: A mobile terminal having a function of managing files and folders is disclosed. In one embodiment, the mobile terminal displays folder items representing one or more memory elements installed in or joined to the mobile terminal on a display unit when a request to perform a search function is inputted, and displays selection items corresponding to at least one of files included in the folder item and subfolders on the display unit when a select command for a folder item is inputted. At least one embodiment of the invention allows easy management of data (e.g., files, folders, etc.) stored in one or more memory devices installed in or joined to the mobile terminal.