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AssigneeJVC KENWOOD Corporation
InventorKazuo Nomura
Estimating the term…
An acquiring unit acquires the positional information. A first request unit requests an authentication station to perform authentication by using the positional information acquired by the acquiring unit. When the authentication station grants authentication for a request from the first request unit, a communication processing unit carries out communications using a first radio communication system. When authentication required for carrying out the communications using the first radio communication system is not performed in the communication processing unit, a second request unit requests another terminal apparatus to perform authentication by using a second radio communication system, whose transmission distance is shorter than the first radio communication system.
A terminal apparatus comprising:
A communication system comprising:
A communication method comprising:
A communication method comprising:
Dependencies are inferred from the claim text.
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Security arrangements; Authentication; Protecting privacy or anonymity: authentication
For controlling access to devices or network resources: wherein the security policies are location-dependent, e.g. entities privileges depend on…
Network architectures or network communication protocols for network security: using different networks or channels, e.g. using out of band channels
Services specially adapted for wireless communication networks; Facilities therefor: services making use of location information
About 8 years 9 months of term left · ends 24 Jul 2035 (estimated)
This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2014-154717, filed on Jul. 30, 2014, the entire contents of which are incorporated herein by reference.
1. Field of the Invention
The present invention relates to a communication technology, and it particularly relates to a terminal apparatus carrying out communications after authentication, a communication system, and a communication method.
Embodiments will now be described by way of examples only, with reference to the accompanying drawings, which are meant to be exemplary, not limiting and wherein like elements are numbered alike in several Figures in which:
FIG. 1 shows a structure of a communication system according to a first exemplary embodiment;
FIG. 2 shows a structure of a terminal apparatus shown in FIG. 1;
The invention will now be described by reference to the preferred embodiments. This does not intend to limit the scope, but to exemplify the invention.
The present invention will be outlined before it is explained in detail. A first exemplary embodiment relates to a communication system including a plurality of base station apparatuses connected to a network, a plurality of terminal apparatuses connected to each of the plurality of base station apparatuses, and an authentication station connected to the network. An example of the communication system is a wireless system for business or commercial use (hereinafter referred to as “business-use wireless system” also). In the business-use wireless system, a group is formed by a plurality of terminal apparatuses. A base station apparatus allots an uplink channel and an uplink channel to a group. Under such circumstances, one terminal apparatus (hereinafter referred to as a “transmitter”) in the group transmits a signal through the uplink channel, and another terminal apparatus (hereinafter referred to as a “receiver”) in the group receives the signal through the downlink. A base station apparatus, which differs from the base station apparatus to which the transmitter is connected, is also allotted a downlink channel for this group. Thus a receiver connected to this different base station apparatus can also receive the signal. Further, the similar processing is carried out to another group but no communication is carried out between different groups.
In order to ensure the security of the communication, authentication for terminal apparatuses used is required. For example, a terminal apparatus acquires its own positional information before the communication is started, and transmits an authentication request while the positional information is being attached to the authentication request. If the authentication request reaches the authentication station by way of a base station and then the positional information lies within a predetermined area, the authentication station authenticates this terminal apparatus (namely, grants authentication for this terminal apparatus). Once the terminal apparatus is authenticated, the terminal apparatus participates in a group and carries out communications. The authentication is granted only when the terminal apparatus is located within the area. Thus a terminal apparatus located in an unexpected position fails to be authenticated, thereby improving the security. If, on the other hand, the terminal apparatus is located in a position where the positional information cannot be acquired, authentication cannot be granted. In this case, the communication cannot be carried out, thereby reducing user convenience.