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US 8,577,367 B2Granted
Wireless terminal device and control method
AssigneeKYOCERA Corporation
InventorFutoshi Ishihara
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AssigneeKYOCERA Corporation
InventorFutoshi Ishihara
Estimating the term…
The cellular telephone device includes a reporting unit and a synchronization unit. In a case in which a communication request occurs in a 3G system in a state where the location registration is performed in an LTE system, the reporting unit reports the communication request, together with data for identifying the 3G system, to the LTE system. The synchronization unit receives synchronization information of a communication channel in the 3G system identified by the LTE system based on such data reported from the reporting unit, and establishes synchronization with the communication channel.
A wireless terminal device that performs wireless communication by selecting any one of a first communication system or a second communication system, the wireless terminal device comprising:
A wireless terminal device that performs wireless communication by selecting any one of a first communication system or a second communication system, the wireless terminal device comprising:
A control method for a wireless terminal device that performs wireless communication by selecting any one of a first communication system or a second communication system, the method comprising:
A control method for a wireless terminal device that performs wireless communication by selecting any one of a first communication system or a second communication system, the method comprising:
Dependencies are inferred from the claim text.
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Terminal devices: adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Substation equipment
Access restriction ; Network selection; Access point selection: selecting a network or a communication service
Wireless communication networks
About 5 years 7 months of term left · ends 31 May 2032 (estimated)
This application is based on and claims the benefit of priority from Japanese Patent Application No. 2010-286402, filed on 22 Dec. 2010, the content of which is incorporated herein by reference.
1. Field of the Invention
The present invention relates to a wireless terminal device that can communicate in a plurality of communication systems, and to a method of controlling the wireless terminal device.
FIG. 1 is a perspective view showing an appearance of a cellular telephone device according to an embodiment of the present invention;
FIG. 2 is a block diagram showing functions of the cellular telephone device according to the embodiment of the present invention;
FIG. 3 is a sequence diagram showing processing in a case in which an incoming voice call occurs when utilizing a network of an LTE system according to the embodiment of the present invention; and
A description is provided hereinafter for an example of a preferred embodiment of the present invention. It should be noted that, in the present embodiment, a cellular telephone device 1 is described as an example of a wireless terminal device.
FIG. 1 is a perspective view showing an appearance of the cellular telephone device 1 according to the present embodiment.
It should be noted that, although FIG. 1 shows a so-called folder-type cellular telephone device, the cellular telephone device according to the present invention is not limited thereto. For example, the cellular telephone device may be of: a slider type in which one of the bodies slides to one direction in a state in which the bodies are mutually superimposed; a rotating (turning) type in which one of the bodies is rotated around an axis line along the direction of superimposing the bodies; and a type (straight type) in which an operation unit and a display unit are disposed in one body without having a connecting portion.