摘要:
A communication device can perform handover in accordance with a traffic type. In a non-real time communication, it is possible to prevent loss of packet data. In a real time communication, a handover can be rapidly performed without causing a delay. In this device, a handover control unit (105) judges whether data type information is data in a real time communication. If the data is in a real time communication, the handover control unit (105) outputs a switching request message for switching the path switch to the local station to an IPAG interface unit (104). An L3 packet buffer management unit (106) temporarily accumulates the data transmitted from the IPAG or data transferred from other network host.
摘要:
A terminal (101) includes interfaces for communication with a mobile network (102) and a wireless LAN (103). A first IMS server (107) performs IMS call control processing relating to terminals located in the mobile network (102) and a second IMS server (111) relays a signal relating to IMS call control processing concerning terminals located in the wireless LAN (103). These IMS servers search for a mobile network packet gateway (106), a packet data gateway (110), and a gateway to be controlled by a route change request for requesting change of a packet transmission path and relay the route change request. The route change request provided from the terminal (101) is relayed by the IMS servers to provide the change request to all networks specified. The packet transmission path is changed by the gateway in accordance with the request. Thus, the terminal having the interfaces for both of the mobile communication network and the wireless LAN can select a network to use for each communication port.
摘要:
A radio network controller (104) according to the present invention outputs a context required for a terminal (110a) capable of communicating with a mobile communication network and a wireless local area network to communicate with the wireless local area network to the terminal (110a) among pieces of information input from wireless access gateways (105a, 105b) that control connection with one or more wireless local area networks (103a, 103b) and provide seamless handover of packet communication between the mobile communication network and the wireless LAN.
摘要:
An object of the invention is to shorten the switching time from a first network to a second network.A packet control apparatus 106 includes 3G authentication server communication means 201 for receiving a switch notification of a terminal switched from a mobile communication network to a WLAN network by conducting communications with a 3G authentication server 108 for performing network authentication processing; terminal address determination means 202 for determining an address that can be used in the WLAN network; and WLAN switch management means 204 for assigning the address determined by the terminal address determination means 202 to the terminal determined by making a comparison between the authentication information of the terminal contained in the switch notification and the authentication information contained in a table for managing information concerning terminals that can access the mobile communication network and the WLAN network and switching the destination of a packet via the mobile communication network to the WLAN network.
摘要:
A terminal (101) includes interfaces for communication with a mobile network (102) and a wireless LAN (103). A first IMS server (107) performs IMS call control processing relating to terminals located in the mobile network (102) and a second IMS server (111) relays a signal relating to IMS call control processing concerning terminals located in the wireless LAN (103). These IMS servers search for a mobile network packet gateway (106), a packet data gateway (110), and a gateway to be controlled by a route change request for requesting change of a packet transmission path and relay the route change request. The route change request provided from the terminal (101) is relayed by the IMS servers to provide the change request to all networks specified. The packet transmission path is changed by the gateway in accordance with the request. Thus, the terminal having the interfaces for both of the mobile communication network and the wireless LAN can select a network to use for each communication port.
摘要:
A radio network controller outputs a context required for a terminal capable of communicating with a mobile communication network and a wireless local area network to communicate with the wireless local area network to the terminal among pieces of information input from wireless access gateways that control connection with one or more wireless local area networks and provide seamless handover of packet communication between the mobile communication network and the wireless LAN.
摘要:
A 3G authentication apparatus includes: a WLAN communication section which receives a notification of reception of a connection request sent from a WLAN access network in response to the connection request from a mobile unit to connect to a WLAN capable of interworking with a mobile network; a communication section for obtaining, from a user information storing device, information indicating a service available in the mobile communication network to the mobile unit that has sent the connection request, on the basis of the notification of reception of the connection request; and a filter setting section which generates filter information by associating a user authentication ID identifying a mobile unit with an IP address obtained at the communication section. The filter information generated by the filter setting section is sent to the WLAN access network through the WLAN communication section. Thus, traffic in a network such as a WLAN in an interworking system between networks such as a mobile communication network and a WLAN can be reduced.
摘要:
A 3G authentication apparatus (109) includes: a WLAN communication section (201) which receives a notification of reception of a connection request sent from a WLAN access network in response to the connection request from a mobile unit to connect to a WLAN capable of interworking with a mobile network; an HSS communication section (203) for obtaining, from a user information storing device, information indicating a service available in the mobile communication network to the mobile unit that has sent the connection request, on the basis of the notification of reception of the connection request; and a filter setting section (206) which generates filter information by associating a user authentication ID identifying a mobile unit with an IP address obtained at the HSS communication section (203). The filter information generated by the filter setting section (206) is sent to the WLAN access network through the WLAN communication section (201). Thus, traffic in a network such as a WLAN in an interworking system between networks such as a mobile communication network and a WLAN can be reduced.
摘要:
A liquid crystal display device includes a liquid crystal (LC) panel; front and rear frames sandwiching therebetween the LC panel; a latch structure engaging together the LC panel and one of the front and rear frames. The latch structure includes a convex portion formed on one of the LC panel and the one of the front and rear panels and a concave portion formed on the other of the LC panel and the one of the front and rear frames to receive therein the convex portion, whereby the latch structure allows and restricts movement of the LC panel with respect to the one of the front and rear frames in a first direction normal to the LC panel and in a second direction parallel to the LC panel, respectively.
摘要:
A rotor for a vehicular alternating current generator has a relief space portion formed between axial holes of a pair of pole cores and a shaft for receiving therein a plastically deformed portion produced when the shaft is press-fitted in the axial holes of the pole cores. The relief space portion is located adjacent to a pair of closely contacting inner end faces of the pole cores so that the plastically deformed portion is let to move into a radially outward direction rather than further continuing movement in an axial direction within the relief space portion. The plastically deformed portion is thus prevented from entering between the inner end faces of the pole cores.