Abstract: A mobile communication terminal apparatus including: a mobile communication terminal main body; and an extension unit detachable from the mobile communication terminal main body and capable of performing short-range wireless communication with the mobile communication terminal main body when being detached in a separated state from the mobile communication terminal main body.

Abstract: A mobile communication terminal apparatus including: a mobile communication terminal main body; and an extension unit detachable from the mobile communication terminal main body and capable of performing short-range wireless communication with the mobile communication terminal main body when being detached in a separated state from the mobile communication terminal main body.

Abstract: A mobile terminal includes: a notification information receiving portion for receiving notification information indicating the type of newly-stored user information or updated user information, from a user information storing portion; a type collating portion for deciding whether or not the type of the user information indicated by request type information registered in a request type recording portion and the type of the user information indicated by the notification information coincide with each other; a request information transmitting portion for, in a case where a decision of coincidence is made, transmitting, to the information delivery server, user request information to request delivery of the newly-stored user information or the updated user information to the mobile terminal; an information receiving portion for receiving user request information delivered from the information delivery server, in accordance with the transmitted user request information; and a display control portion for displaying

Abstract: According to an aspect of an embodiment, a communication terminal connectable to a communication network system transmits user data obtained by one communication terminal gaining a voice to other communication terminals through a network. The communication terminal includes a transmitter, a receiver, a voice request part which receives a voice gain request from a user, a voice gain recognition part which recognizes that the voice is gained, a data obtaining part which obtains user data, a data storage which stores data, and a data management part which causes the data storage to store the user data after receiving a voice gain request and which receives the recognition of the voice gain. The transmitter transmits the user data part after receiving the voice gain request from the user.

Abstract: In a radio network control method and device which avoid a congestion state by controlling a handover request when a transportable base station is moving, when location information is received from the transportable base station, enable/disable of a handover between the transportable base station and another base station is determined based on the location information and preset handover information per area. When handover enable is determined, information of a peripheral cell which allows a handover to the other base station is notified to a user equipment using a cell of the transportable base station based on in-use cell information per user equipment. Alternatively, information of a peripheral cell which allows a handover to the transportable base station is notified to a user equipment using a cell of a base station to which the transportable base station has moved.