Patent application number | Description | Published |
20090154396 | MOBILE COMMUNICATION MANAGEMENT SYSTEM - The present invention is to provide a mobile management communication system which can reduce the number of nodes involved in a packet delivery to a mobile terminal which has access to a home network compared to a packet delivery to a mobile terminal which is roaming and can perform a dynamic change to an anchor node suitable for a service, corresponding to a change of a service type required by a user. | 06-18-2009 |
20090279452 | HIERARCHICAL MOBILITY MANAGEMENT SYSTEM, ACCESS ROUTER, ANCHOR NODE, MOBILE COMMUNICATION SYSTEM AND ROUTE SETTING METHOD - In a hierarchical mobility management system, a roaming mobile terminal cannot perform handover at a high speed between anchor nodes when conducting AR return communication. | 11-12-2009 |
20090313118 | ACCESS ROUTER, DHCP SERVER, ROUTER ADVERTISEMENT TRANSMITTING SYSTEM, METHOD FOR ROUTER ADVERTISEMENT TRANSMITTING SYSTEM, ANCHOR ROUTER AND PROGRAM - When terminals needing different IP configuration information are mixed under the same link, it is necessary to individually transmit a router advertisement to each of the terminals. By including means for transmitting the router advertisement to a solicited-node multicast address, and means for assigning an IP address corresponding to the solicited-node multicast address, a group of the terminals needing the same IP configuration information are grouped so as to include the same solicited-node multicast address, thereby, the router advertisement for each group can be applied. | 12-17-2009 |
20100074179 | MOBILITY MANAGEMENT SYSTEM, HOME AGENT, MOBILE TERMINAL MANAGEMENT METHOD USED FOR THEM, AND ITS PROGRAM - A mobility management system manages mobility of any one mobile terminal with a different mobility protocol depending on an access method. The system comprises an anchor node haying a function of managing a CMIP (Client Mobile Internet Protocol) SA (Security Association) and a PMIP (Proxy MIP) SA used to authenticate a location registration message of said mobile terminal. | 03-25-2010 |
20100082796 | MOBILE COMMUNICATION MANAGEMENT SYSTEM AND MOBILE COMMUNICATION MANAGEMENT METHOD - The signaling amount for acquisition of home addresses (HoA) and handover over the radio leg is reduced in a case where a mobile node (MN) requires multiple different communication IP addresses (Home address: HoA) for respective services. An AAA server holds service identifiers of all the services provided for the mobile node (MN) and home agent (HA) information, in addition to authentication information of the mobile node (MN). The AAA server also registers, for all the services provided for the mobile node (MN), an association of home addresses (HoA) used by the mobile node (MN) for the respective communication services with IP addresses (care-of address: CoA) having information of a network in which the mobile node (MN) resides, into the home agents (HA) associated with the corresponding service identifiers. | 04-01-2010 |
20110007709 | MOBILE COMMUNICATION SYSTEM, METHOD OF HANDOVER BETWEEN DIFFERENT TYPES OF ACCESS NETWORKS, MOBILE TERMINAL, AND SERVER - Because attachment processing is executed as a trigger of handover between different types of access networks by the Proxy MIP, not only link set-up but also various processing including authentication processing and IP acquisition processing are required to make a handover time longer. | 01-13-2011 |
20110170530 | COMMUNICATION SYSTEM, CONNECTION CONTROL APPARATUS, MOBILE TERMINAL, BASE STATION CONTROL METHOD, SERVICE REQUEST METHOD, AND PROGRAM - A communication system, in which a mobile terminal uses a data path that was generated with an ISP network by a base station in a home network to access a NW via the ISP network, includes an authentication means and connection control means in the ISP network. The base station accepts an access request from the mobile terminal and transmits information relating to the base station and the mobile terminal to the connection control means. The authentication means determines based on the information whether a linking service that connects to the home NW without traversing the ISP network can be provided to the mobile terminal, and if the linking service can be provided, notifies this information to the connection control means. Based on this notification, the connection control means requests the base station to generate a data path for providing the linking service, and the base station generates the data path. | 07-14-2011 |
20120113989 | COMMUNICATION SYSTEM, LOGICAL CHANNEL CONTROL DEVICE, CONTROL DEVICE, COMMUNICATION METHOD AND PROGRAM - A configuration having a control device that sets a processing rule in a forwarding node, the configuration being capable of forwarding control of duplicated packets in private IP address spaces. At least one forwarding node among forwarding nodes operates as a logical channel control device that establishes a logical channel to an external node, generate or delete a virtual port information associated with said logical channel established to said external node, and gives notification thereof to the control device, and the control device computes a forwarding path of a packet using the notified port information. | 05-10-2012 |
20120320920 | COMMUNICATION SYSTEM, CONTROL DEVICE, COMMUNICATION METHOD, AND PROGRAM - A communication system includes a plurality of forwarding nodes for which is set a processing rule(s) for forwarding a received packet in accordance with a route set in advance, with a processing rule being selected based on a path identifier included in the received packet, to perform packet forwarding; and a control device that sets the processing rule beforehand in the forwarding node in the route, and causes a forwarding node positioned at a start point of the route to add a path identifier in accordance with the route to a received packet and causes a forwarding node positioned at an end point of the route to delete the path identifier from a received packet, on a predetermined occasion. | 12-20-2012 |
20130064243 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, CONTROLLER, AND METHOD AND PROGRAM FOR CONTROLLING FORWARDING PATH OF PACKET FLOW - A communication system includes a communication device controlling packet forwarding, and a controller setting a first table entry used for packet forwarding according to a request from the communication device. The communication device determines whether to forward a received packet according to the first table entry or forward the received packet according to a second table entry set by the communication device based on a rule for identifying a received packet. The load of the controller for controlling paths can be reduced. | 03-14-2013 |
20130121170 | COMMUNICATION SYSTEM, NODE, STATISTICAL INFORMATION COLLECTION DEVICE, STATISTICAL INFORMATION COLLECTION METHOD AND PROGRAM - For use in a communication system where communication is carried out by setting a packet handling operation (flow entry) in the nodes by a control device, the present invention provides a configuration in which statistical information may be collected at a desired information granularity level without increasing the control load of the control device. A node of the communication system includes a packet processing unit that processes a received packet according to a packet handling operation defining a matching rule and processing of a packet that matches the matching rule; and a statistical information recording unit that records statistical information on a packet according to a division different from the matching rule, and a statistical information collection device is provided that issues an instruction on a division, according to which the statistical information is to be recorded, to the node and collects the statistical information. | 05-16-2013 |
20130176861 | CONTROL APPARATUS, A COMMUNICATION SYSTEM, A COMMUNICATION METHOD AND A RECORDING MEDIUM HAVING RECORDED THEREON A COMMUNICATION PROGRAM - A control apparatus for controlling a network includes a path control unit for selecting a communication apparatus having an identifier as a destination communication apparatus among a communication apparatus group, based on a connection relationship between the communication apparatus group, which is connected to the network and includes communication apparatuses each having a same identifier, and a source communication apparatus which performs communication using the identifier as a destination address, and setting a process corresponding to a path from the source communication apparatus to the selected destination communication apparatus to a transfer apparatus in the network. | 07-11-2013 |
20130235869 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, CONTROLLER, AND METHOD AND PROGRAM FOR CONTROLLING FORWARDING PATH OF PACKET FLOW - A communication system includes a communication device controlling packet forwarding, and a controller setting a first table entry used for packet forwarding according to a request from the communication device. The communication device determines whether to forward a received packet according to the first table entry or forward the received packet according to a second table entry set by the communication device based on a rule for identifying a received packet. The load of the controller for controlling paths can be reduced. | 09-12-2013 |
20130266017 | COMMUNICATION SYSTEM, CONTROL APPARATUS, COMMUNICATION METHOD, AND PROGRAM - A communication system includes a forwarding node processing a received packet in accordance with a process rule in which a matching rule for identifying a flow and a process content applied to a packet coinciding with the matching rule are associated to each other; and a control apparatus including a path calculation unit calculating a packet forwarding path for each flow; and a forwarding control policy management unit managing a packet forwarding control policy applied to the forwarding node; wherein the control apparatus sets a process rule reflecting contents of the forwarding control policy in accordance with the calculated path. | 10-10-2013 |
20130273900 | MOBILE COMMUNICATIONS SYSTEM, CONTROL APPARATUS, POLICY SUPPLY SYSTEM, STATE TRANSITION CONTROL METHOD, AND POLICY SUPPLY METHOD - A mobile communications system according to an aspect of the present invention includes a control apparatus ( | 10-17-2013 |
20140071877 | COMMUNICATION SYSTEM, MANAGEMENT APPARATUS, CONTROL METHOD, AND PROGRAM - A communication system includes: an access apparatus(es) accessed by communication terminals; a packet forwarding apparatus(es) forwarding packets via the access apparatus(es); a first management apparatus controlling operation modes relating to energy consumption of the access apparatus(es); and a second management apparatus controlling operation modes relating to energy consumption of the packet forwarding apparatus(es) based on a change of the operation modes relating to the energy consumption of the access apparatus(es). | 03-13-2014 |
20140153530 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, CONTROL NODE, MOBILE STATION, METHOD RELATING TO THESE, AND COMPUTER READABLE MEDIUM - A wireless communication system ( | 06-05-2014 |
20140162659 | RADIO COMMUNICATION SYSTEM, BASE STATION, COMMUNICATION METHOD, MOBILE STATION, AND COMPUTER-READABLE MEDIUM - A base station ( | 06-12-2014 |
20140198798 | COMMUNICATION TERMINAL, COMMUNICATION METHOD, COMMUNICATION SYSTEM, AND PROGRAM - 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. | 07-17-2014 |
20140233381 | COMMUNICATION APPARATUS, CONTROL APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND PROGRAM - 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. | 08-21-2014 |
20140233392 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND PROGRAM - 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. | 08-21-2014 |
20140286294 | MOBILE COMMUNICATION TERMINAL, COMMUNICATION METHOD, COMMUNICATION SYSTEM, AND CONTROL APPARATUS - 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. | 09-25-2014 |
20140348171 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, CONTROLLER, AND METHOD AND PROGRAM FOR CONTROLLING FORWARDING PATH OF PACKET FLOW - In a network device to be used for a packet handling, the network device includes a first unit to communicate with a controller according to a first protocol, and to receive a packet handling rule from the controller which is capable of sending the packet handling rule to a plurality of the network devices via a network between the controller and the network device. A second unit classifies, based on a classification rule for classifying a received packet, whether to handle the packet according to the packet handling rule sent from the controller or to handle the packet according to a table entry that the network device autonomously set based on a second protocol. A third unit requests the packet handling rule to the controller when the packet handling rule for forwarding the received packet is not set in the network device. | 11-27-2014 |
20140348172 | Communication System, Communication Device, Controller, and Method and Program for Controlling Forwarding Path of Packet Flow - In a network device to be used for a packet handling, the network device includes a first unit to communicate with a controller according to a first protocol, and to receive a packet handling rule from the controller which is capable of sending the packet handling rule to a plurality of the network devices via a network between the controller and the network device. A second unit to classifies, based on a classification rule for classifying a received packet, whether to handle the packet according to the packet handling rule sent from the controller or to handle the packet according to a table entry that the network device autonomously set based on a second protocol. A third unit requests the packet handling rule to the controller when the packet handling rule for forwarding the received packet is not set in the network device. | 11-27-2014 |
20140376394 | COMMUNICATION APPARATUS, CONTROL APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND COMPUTER PROGRAM - 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. | 12-25-2014 |
20150043574 | COMMUNICATION APPARATUS, CONTROL APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, COMMUNICATION TERMINAL AND PROGRAM - A communication apparatus comprises: a packet processing unit that processes, based on a processing rule set by a control apparatus, a packet that matches the processing rule; a statistical value measurement unit that measures a statistical value with respect to packet processing executed based on the processing rule; and a management unit that instructs a transmission source of a packet that matches a processing rule, for which the statistical value exceeds a prescribed threshold, to communicate with a prescribed server that manages the threshold and request the server to update the threshold. | 02-12-2015 |
20150071171 | COMMUNICATION DEVICE AND METHOD IN A COMMUNICATION SYSTEM, AND DEVICE AND METHOD FOR COMMUNICATION PATH CONTROL - A communication device performs communication over a communication path configured in a network, includes: a communication path identification section that can identify a communication path to which a received packet belongs; and a switching section that can forward the received packet to a network node associated with the communication path to which the received packet belongs, among multiple network nodes that can terminate the communication path. | 03-12-2015 |
20150085781 | Communication Apparatus, Communication Method, Communication System, Control Apparatus and Program - 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. | 03-26-2015 |
20150099518 | COMMUNICATION SYSTEM, ACCESS CONTROL APPARATUS, ACCESS APPARATUS, AND COMMUNICATION PATH CONTROL METHOD THEREFOR - In an access apparatus which has an offloading function, resources of the access apparatus are excessively consumed when handover occurs between access apparatuses. A communication system ( | 04-09-2015 |
20150200850 | COMMUNICATION SYSTEM, CONTROL DEVICE, COMMUNICATION METHOD, AND PROGRAM - A communication system includes a first node to forward a received packet according to a path identifier included in an additional header, which corresponds to a forwarding path of the received packet, a second node placed in an edge of network, configured of the first node, and to process the received packet according to a packet processing rule, and a controller to send, to the second node, the packet handling rule which indicates to add the additional header to the received packet, wherein the second node requests the packet processing rule to the controller when the packet processing rule for the received packet is not set in the second node. | 07-16-2015 |
20150201364 | COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD - 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. | 07-16-2015 |
20150280926 | CHARGING CONTROL METHOD AND SYSTEM IN COMMUNICATION NETWORK - 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. | 10-01-2015 |
20150327303 | COMMUNICATION SYSTEM, CONNECTION CONTROL APPARATUS, MOBILE TERMINAL, BASE STATION CONTROL METHOD, SERVICE REQUEST METHOD, AND PROGRAM - A communication system, in which a mobile terminal uses a data path that was generated with an ISP network by a base station in a home network to access a NW via the ISP network, includes an authentication means and connection control means in the ISP network. The base station accepts an access request from the mobile terminal and transmits information relating to the base station and the mobile terminal to the connection control means. The authentication means determines based on the information whether a linking service that connects to the home NW without traversing the ISP network can be provided to the mobile terminal, and if the linking service can be provided, notifies this information to the connection control means. Based on this notification, the connection control means requests the base station to generate a data path for providing the linking service, and the base station generates the data path. | 11-12-2015 |
20160006684 | COMMUNICATION SYSTEM, CONTROL APPARATUS, COMMUNICATION METHOD, AND PROGRAM - A control apparatus is configured to generate a processing rule that defines packet processing in a communication apparatus and set the processing rule in the communication apparatus, to determine one or more logical networks for broadcast targets, based on correspondence relationship between network address and logical network, to obtain one or more communication apparatuses connected to the determined one or more logical networks and to set the one or more communication apparatuses to perform broadcast transmission to the determined one or more logical networks. | 01-07-2016 |
20160065471 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, CONTROLLER, AND METHOD AND PROGRAM FOR CONTROLLING FORWARDING PATH OF PACKET FLOW - A communication system includes a network device to be used for packet handling; and a controller capable of sending, to the network device, a packet handling rule according to a first protocol. The network device classifies, based on a condition, indicative of a scope under which the controller is capable of controlling the network device, whether to handle the packet according to the packet handling rule sent from the controller or to handle the packet according to a table entry that the network device autonomously sets based on a second protocol. | 03-03-2016 |
20160142326 | METHOD AND APPARATUS FOR CONTROLLING SERVICE QUALITY IN COMMUNICATION SYSTEM, AND COMMUNICATION APPARATUS - A communication system, a method for controlling service quality, a control apparatus, and a communication apparatus are provided that enable flexible packet forward processing control based on service quality information. A communication system in which a logical path is established over a network to perform communication includes: a control apparatus that retains a policy indicating an association between a logical path and service quality information (QoS); and a communication apparatus that provides a packet with the service quality information (QoS) corresponding to the logical path to which the packet belongs, in accordance with a control message sent from the control apparatus. | 05-19-2016 |