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AssigneeSharp Kabushiki Kaisha
InventorWaho Oh
Estimating the term…
A dual mode mobile terminal has a dual mode in which said mobile terminal can be connected to any of two different wireless communications systems (hereinafter referred to as systems 1 and 2). The mobile terminal can be connected to optimum wireless communications system by considering conditions at which the mobile terminal is (moving speed, communication data rate) even if it is in the state of communicating using any of systems 1 and 2. The mobile terminal (3) which can be connected to any of the system 1 having a wide service area and medium and low communication data rate and the system 2 having a local service area and high communication data rate determines whether or not it is in the service area of the systems 1 and 2. Based upon the moving speed and/or the communication data rate of the current mobile terminal (3), the mobile terminal (3) is connected to the system 1 or 2 if the moving speed is higher or lower than a predetermined threshold, respectively, and is connected to the system 2 or 1 if the communication data rate is higher or lower than a predetermined threshold, respectively, irrespective of whether the mobile terminal is in the communicating state or not. Prior to connection, selection of the wireless system is informed to the user and the connection may be made in accordance with an instruction from the user.
A wireless communications system comprising two different wireless communications systems which are a wireless communications system 1 for medium and low data rate communication having a wide communication service area and a wireless communications system 2 for high data rate communication having a local communication service area and mobile terminals which are connectable to any of said wireless communications systems 1 and 2, wherein said mobile terminals comprise;
A wireless communications method which is conducted in a wireless communications system comprising two different wireless communications systems which are a wireless communications system 1 for medium and low data rate communication having a wide communication service areas and a wireless communications system 2 for high data rate communication having a local communication service area and mobile terminals which are connectable to any of said wireless communications systems 1 and 2, wherein said mobile terminals switch the connection of the mobile terminal with said wireless communications systems 1 or 2 based upon a result of determination whether said mobile terminal is in respective wirelessly communicative areas of said wireless communications system 1 and 2 and results of detection of the moving speed and/or communication data rate of said mobile terminal.
Dependencies are inferred from the claim text.