Abstract: A switch is provided between a first network and a second network and an offloading determination unit determines whether or not to offload traffic for the first network, and configures an offload path to bypass the first network for the switch when the offloading is performed. When the traffic is offloaded, the switch forwards a packet to be offloaded to the offload path.

Abstract: A charging control method and system are provided that can reduce the processing load on a function of performing charging control. The charging control system includes a policy and charging rules function (PCRF), a plurality of gateways (P-GWs) each including a policy and charging enforcement function (PCEF), and a relay section including a relay server and a switch that connects the PCRF and the plurality of PCEFs in a hierarchical manner. The PCRF is directly connected to the relay section, whereby the number of sessions is reduced.

Abstract: A communication control method and a communication system are provided that realize traffic offload while reducing the processing load on a base station. A base station in a mobile network includes a gateway (PO-GW) for connecting a mobile terminal (UE) in the mobile network to a packet data network (PDN), and a control function (MME, DNS, HSS) of the mobile network allows the mobile terminal to access the gateway (PO-GW), in response to a request from the mobile terminal to connect to the PDN via the base station.

Abstract: A communication apparatus includes: a communication unit that communicates with a network by at least one of a plurality of communication schemes; and a control unit that disguises a first communication address corresponding to a first communication scheme, by a second communication address corresponding to a second communication scheme, based on an instruction transmitted from a control apparatus.

Abstract: A communication terminal comprises: first means that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second means that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third means that informs the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.

Abstract: The wireless communication terminal includes: a plurality of communication interfaces each of which corresponds to at least one of a plurality of wireless access systems; a first unit receiving an instruction from a prescribed control apparatus, the instruction including a wireless access system determined by the control apparatus based on a status of the wireless communication terminal, which changes along with movement of the wireless communication terminal; and a second unit communicating by using a communication interface corresponding to the instructed wireless access system.

Abstract: A communication apparatus, includes: a packet processing unit that processes an incoming packet based on a processing rule corresponding to the incoming packet among a plurality of processing rules set from a control apparatus; a statistical value measurement unit that measures a statistical value obtained from a processing amount corresponding to each of the plurality of processing rules; and a processing rule management unit that determines whether or not each of the processing rules is effective based on the statistical value.

Abstract: A communication terminal comprises: first unit that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second unit that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third unit that requests the control apparatus to inform the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.

Abstract: A communication system includes: a control apparatus that controls packet forwarding; and a mobile communication terminal that communicates with a network including the control apparatus, wherein the mobile communication terminal comprises: a plurality of communication interfaces for wireless communication; a processing unit that processes a packet in accordance with an instruction from the control apparatus; and a control unit that transmits to the network interface information that is information related to the plurality of communication interfaces to notify the control apparatus of the interface information.

Abstract: A communication system, wherein a switch node to which a terminal is connected can be recognized, and a flow table can be updated promptly in accordance with the status of the switch node. The communication system includes: a switch node that operates in accordance with a flow table in which processing content is defined for each of a plurality of flows, and a flow control device that includes a terminal management unit that records, based on a request to set a flow entry from the switch node, information of association between a terminal of a packet source and a switch node to which the terminal is connected, wherein the flow control device refers to the information of association to make the switch node execute a modification or deletion of a flow entry in the flow table.

Abstract: A communication apparatus, comprises: a packet processing unit that processes, based on a processing rule set by a control apparatus, a packet that corresponds to the processing rule; a statistical value measurement unit that measures a statistical value with respect to the packet processing based on the processing rule; and a processing rule management unit that rewrites a processing content of the processing rule to a packet discarding process, if the statistical value for the processing rule exceeds a predetermined threshold.

Abstract: A communication apparatus includes: a first table storing processing rules transmitted from the control apparatus; a packet processing unit processing an incoming packet based on a processing rule corresponding thereto among the processing rules stored in the first table; and a second table managing a predetermined condition for referring to the first table. The packet processing unit determines whether to refer to the first table based on the predetermined condition.

Abstract: Without having a control apparatus grasp and analyze the communication volume for each individual processing rule in each communication apparatus, detailed control based on the communication volume is performed on the side of the communication apparatus. The communication apparatus comprises a packet processing unit that processes a packet corresponding to a processing rule based on the processing rule set by the control apparatus, a statistics measurement unit that measures statistics corresponding to packet processing according to the processing rule, and a forward processing unit that controls a forwarding rate for a packet processed according to a processing rule corresponding to the statistics and based on the statistics.

Abstract: The present invention is directed to perform high-reliable authentication using a one-way function that a communication is a communication which was performed with the same apparatus to be authenticated by storing a password only in an apparatus to be authenticated (it is unnecessary to store a password in both of an authentication apparatus and an apparatus to be authenticated) without transmitting a challenge code. When a setting is updated in a setting management server, authentication is performed by using a one-time password obtained last time. A sound communication terminal performs a process using a hash function once on a one-time password transmitted this time, and performs authentication by determining whether the processed one-time password matches a one-time password obtained last time or not. Whether the information at the time of the change in the setting is proper or not is determined by a sound terminal.

Abstract: A communication terminal communicating with a network including a control apparatus that generates a processing rule defining a packet processing method, the communication terminal comprises: a request unit that requests an address of the control apparatus when requesting for establishing a connection to the network; a communication unit that establishes a communication channel to the control apparatus based on an address acquired by the address request; and a processing unit that processes a packet based on a processing rule transmitted by the control apparatus via the communication channel.

Abstract: A mobile unit managing network is provided which is capable of supporting a communication area being wider than ever by one highest-layer router. A radio base station transfers a path updating notification fed from a mobile terminal to a lowest-layer router. The lowest-layer router establishes a path in which a network address to the mobile terminal exists in the radio base station and transfers path information to an intermediate-layer router serving as an upward router. The intermediate-layer router establishes a path in which the network address to the mobile terminal exists in the lowest-layer router and transfers path information to the highest-layer router. The highest-layer router, when having received path information notification from the intermediate-layer router, establishes a path in which the network address to the mobile terminal exists in the intermediate-layer router.

Abstract: In a proxy mobile IP system, a mobility anchor comprises: a proxy mobile IP registration unit effectuating proxy mobile IP registration in proxy mobile IP (Internet Protocol) communication by one or more registration notification messages from an access gateway; and a last registration time recording/management unit effectuating recording and management of time of last registration by the registration notification message. The mobility anchor, on receipt of a new registration notification message, determines, in case a receipt time difference (or a receipt time interval) between the time of receipt of the new registration notification message and a registration notification message recorded last time in the last registration time recording/management unit is within a pre-set period of time, and the access gateway has changed by switching, possibility of order reversal of the new registration notification message and the registration notification message recorded last time.

Abstract: A base station (1) is connectable to a mobile station (4) by a plurality of Radio Access Technologies (RATs) including first and second RATs. The base station (1) is configured to be able to use a communication path (400) that passes through a first upstream network (140) corresponding to the first RAT, when the mobile station (4) performs communication via the second RAT. This enables, for example, efficient use of the upstream networks when the Multi-RAT base station (1) supports a plurality of upstream networks.

Abstract: A H(e)NB (1A) includes a radio IF (10) that performs radio communication with a UE (2), a LAN-IF (11) connectable to a LAN (34), and an address management unit (15) capable of storing a MAC address of the UE (2) different from a MAC address of the H(e)NB (1A) assigned to the LAN-IF (11). The H(e)NB (1A) is configured to transmit, to the LAN (34), a MAC frame having the MAC address of the UE (2) as a source address in response to receiving transmission data to the LAN (34) from the UE (2).

Abstract: A wireless communication system includes a plurality of base stations, a mobile wireless communication device which makes wireless communication with the base stations, a terminal device, and a router through which the base stations make communication with an IP network. The terminal device transmits an address thereof to the mobile wireless communication device, before the mobile wireless communication device makes link with one of the base stations. The terminal device fabricates a frame addressed to an address of the router, and transmits the frame to the router, after the mobile wireless communication device has made link with one of the base stations. The router transmits an address thereof to the base stations, before the mobile wireless communication device makes link with one of the base stations.