Fujitsu Corporation

Tatsuhiro Ando

Hidehiko Suzuki

Kiyomi Hasesaka

Takuji Oyama

Yoshihiro Watanabe

Tatsuo Yamaguchi

Yoshihiro Kubota

Keiji Mizuma

Toshiyuki Kamo

Satoshi Maehara

Hiromi Harada

A relay apparatus transfers data sent from a user terminal, to an external network, via any one of paths. A notification apparatus receives first disaster information including area information identifying first areas forecast to be affected by an occurrence of a disaster and prediction information storing, in association with each of the first areas, a predicted intensity value indicating a predicted value of an influence degree of the disaster on the each of the first areas. The notification apparatus generates, based on the first disaster information, second disaster information storing the predicted intensity value in association with each of second areas passed through by the paths. The relay apparatus switches the currently-used path to alternative path when it is determined that the predicted intensity value associated with at least one of third areas passed through by the currently-used path is greater than or equal to the predetermined threshold value.

System and method for switching a communication path based on disaster information

A usage management system includes a first storage and a processor. The first storage stores, for each communication area and for each user, usage restriction information regarding a network device which locates in each communication area and which is used by each user and connectable to a communication network. The processor identifies a location area which is a communication area in which a target network device locates, identifies a target user present in the identified location area, acquires usage restriction information regarding the target network device for the identified target user from the first storage, and controls operations of the target network device in accordance with the acquired usage restriction information.

Usage management system and usage management method

Access points are grouped into access point groups. An access point group table that stores correlation between the access point groups and the access points and a terminal position table that manages the correlation between the access point groups and a terminal are provided for a position managing server that manages the position of the terminal. An access point notifies the position managing server of the identifier of the access point itself and the identifier of the terminal being connected to the access point. In the position managing server, an access point group to which the access point belongs is found by searching the access point group table. The terminal is registered in the column of 'access point group' of the terminal position table.

Terminal position managing server, access point, and call control server

A mobile communication system provided with a home address holding function unit storing one home address, as a representative home address, from among a plurality of home addresses and the rest as subordinate home addresses, a position registration request function unit creating a representative address set and subordinate address sets with the representative home address and subordinate home addresses, acquired from the holding function unit, and a corresponding representative care-of address and subordinate care-of addresses and further sending a position registration request by only the representative address set, and a position registration function unit receiving the representative home address and subordinate home addresses acquired from the holding function unit, creating subordinate address sets from the representative address set relating to the position registration request, and registering the position of the representative address set simultaneously with the registration of the positions of the subordinate address sets.

Mobile communication system, position registration method, terminal, and home agent

A method and system of authenticating a mobile terminal may include using a Mobile Virtual Network Operator (MVNO) authentication device managed by a mobile virtual network operator, receiving an authentication request sent from the mobile terminal from a relay device via a MVNO base station configured to provide a service of the mobile virtual network operator, where the relay device is located between the MVNO base station or a Mobile Network Operator (MNO) base station configured to provide a service of a mobile network operator and the MVNO authentication device or a MNO authentication device managed by the mobile network operator, and determining whether or not access from the mobile terminal, as a MVNO mobile terminal registered as a user of the mobile virtual network operator, based on the authentication request is permitted.

Mobile terminal authentication method and system

A wireless LAN control device includes a wireless LAN control unit having a transmitting/receiving unit performing communications with a plurality of wireless LAN access points belonging to different user groups and a wireless LAN connection control unit. The wireless connection control unit executes control of transferring a user authentication request received by the transmitting/receiving unit via one of the plurality of wireless LAN access points and given from a wireless LAN terminal belonging to one of the user groups toward an authentication server that should execute an authentication process in response to the user authentication request, and transmitting an authentication result given from the authentication server in response to the user authentication request to the wireless LAN terminal via one of the plurality of wireless LAN access points.

Wireless network control device and wireless network control system

In a router provided on a boundary between the Internet and an intranet and used for receiving an incoming first packet and then passing on the first packet to a destination router indicated by a destination address of the first packet, the router includes a decapsulation unit for carrying out a process of decapsulating the first packet into a second packet in the case of a predetermined address specified in the first packet as the destination address, and a first judgment unit for forming a judgment as to whether or not a user transmitting the first packet is an authorized user.

Router and IP-packet-transferring method

In an ATM switch provided in a network where an MPLS traffic and an ATM traffic coexist, which of the MPLS traffic and the ATM traffic a received ATM cell belongs to is determined according to the cell, the cell is classified based on the determination result and made to wait, and the cell is read at read intervals based on preset bandwidth allocation rates of both traffics. Also, service classes of a plurality of priorities for the MPLS traffic are provided and the read interval is obtained per priority.

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Kawasaki, Japan

Tatsuhiro Ando