Panasonic Corporation

Panasonic Intellectual Property Corporation of America

Sun Patent Trust

Chun Keong Benjamin Lim

Chan Wah Ng

Jun Hirano

Pek Yew Tan

Tien Ming Benjamin Koh

Keigo Aso

Mohana Dhamayanthi Jeyatharan

Takahisa Aoyama

Shinkichi Ikeda

Hong Cheng

Sampath Swaroop Kumar

Takashi Aramaki

Tien-Ming Benjamin Koh

Yoshihiko Takei

A technique is disclosed, according to which a mobile node, having a plurality of interfaces and performing communication according to flow information when an operator is performing communication based on the flow information as defined by a policy, can select an interface suitable for the flow and can perform communication. According to this technique, a mobile node (MN) having a plurality of interfaces has a list to indicate domain limited flows to be transmitted only within a specific network (a trusted network), and a list to indicate the trusted networks. When a certain interface performs handover, and in case there is a domain limited flow that uses the interface, it is decided whether the network of handover destination is a trusted network or not, and in case the network of the handover destination is not a trusted network, it is decided whether it is possible or not to transmit and receive the domain limited flow via another interface that is connected to the trusted network.

Mobile terminal

Network node and mobile terminal

Disclosed is a technique for enabling a device that needs to send high priority and high bandwidth user plane traffic to send the user plane traffic even in the case where a group bandwidth has an upper limit in group-based communication. According to the technique, when an MTC device that is to send high priority and high bandwidth user plane traffic sends a service request to a network node (P-GW), the network node allows use of a minimum bandwidth bearer in the case where the upper limit of the group bandwidth is exceeded. The MTC device sends a traffic sending request to an MTC servervia the bearer. The MTC server stops traffic of an appropriate other MTC device, to secure a bandwidth for the MTC device having the high priority and high bandwidth user plane traffic.

Communication device, network node, and communication server

Disclosed is a technique allowing a communication terminal, even after a handover between different types of networks, to determine whether a communication that was in progress in an access network connected before the handover can be resumed or not. In order to receive an incoming CS call during a connection to a PS domain (E-UTRAN), a user terminal (UE) has to connect to a CS domain (UTRAN). When the UE has a LIPA (local IP address) in the PS domain, for example, the UE may not continue LIPA traffic in the CS domain after the CS call. In the present invention, a network performs buffering of LIPA traffic for certain duration, for example, and informs the UE of this condition, whereby the UE can securely determine whether the LIPA traffic is still kept after the CS call.

Communication terminal and network node

Disclosed is a technique to eliminate wasted tunneling encapsulation processing during redirection of a packet. According to the technique, when a packet of a first connection passing through a local mobility anchor ('LMA')and a mobile access gateway ('MAG')using a first prefix of an interfaceof a mobile node (&#x201c;MN&#x201d;)is redirected to a second connection passing through a LMAand a MAGusing a second prefix of an interfaceof the MN, a redirection tunnel Tis established between the LMAand the LMA. When the MAGknows the first prefix, the LMAencapsulates a packet addressed to the first prefix that is redirected via the tunnel T to be addressed to the MAGfor transferring.

Redirection method, redirection system, mobile node, home agent, and proxy node

There is disclosed a technology which improves scalability in an overlay network system and which efficiently supplies a service with respect to a user, and according to the technology, for example, in a case where a mobile node () transmits an update message including a specific flow filtering rule to an HA () in order to receive a service concerning functions of multiple interfaces, the HA () interprets the flow filtering rule, specifies an HAto transfer a data packet from CNs (), an HA () to transfer a data packet from the CN () and an HA () to transfer a data packet from a CN (), and selectively transmits to each HA a message including information useful for the respective HA.

Overlay network node

A path switching system is provided, in which when UE has been offloaded from a first PDN-GW to a second PDN-GW, if there is an additional connection of the UE to the first PDN-GW, processing related to the additional connection can be performed on the UE side. The system includes: a control unit for sending a mobile terminal a message including information indicative of having switched relay devices, which relay a packet between the mobile terminal and a communication device, from a first relay device to a second relay device; and the mobile terminal for determining whether there is an added path other than part of a path from the mobile device before movement to the communication device and capable of being managed by the control unit, established between the mobile terminal and the first relay device, and when there is the added path, performing processing on the added path.

Path switching system, path switching method, and mobile terminal

Disclosed is a technique for enabling a mobile terminal, which is capable of using a plurality of communication routes for communication with a correspondent node, to select an appropriate communication route to communicate with the correspondent node. According to the technique, the mobile terminal (UE/MNB) requests a predetermined network node (P-GW) to detect whether or not the correspondent node (CNB) exists in the same domain. The P-GW monitors a packet sent from the CN to the UE/MN and, when detecting the packet, determines whether or not the CN exists in the same domain. In the case of determining that the CN exists in the same domain, the P-GW reports information that the CN exists in the same domain, to the UE/MN. The UE/MN selects an interface used for communicating with the CN, based on the reported determination result.

Communication system, mobile terminal, network node, and base station apparatus

A technique is disclosed, according to which a race condition between a PMIPv6 binding by a PBU message of PMIPv6 and a CMIPv6 binding by a BU message of CMIPv6 can be resolved. MNhas a plurality of radio communication interfaces, and a first interface is connected to MAGof a home PMIPv6 domain, for instance. In case the connection of a second interface is changed from MAGof a home PMIPv6 domain to ARof a CMIPv6 domain, a BU messageis transmitted from the second interface to LMA/HA, and identification information of this BU message is notified to MAG from the first interface. By adding time information to this identification information and by transmitting it to LMA/HA, MAG can identify transmission time of the BU message (i.e. relative order with the other messages) from this time information.

Mobile terminal, network node, and packet transfer management node

Disclosed is a technique for surely supporting multihoming for a mobile terminal (mobile node) moving in a local mobility domain. A mobile node (MN)connects via an IFto a mobile access gateway (MAG)that supports multihoming, and further attempts to connect via an IFto a MAGthat does not support multihoming. Under these conditions, according to this technique, when the MN recognizes that the MAGdoes not support multihoming, the MN notifies a local mobility domain that the MAGdoes not support multihoming if connection with the MAGis not yet established, and notifies the local mobility domain of information on a connection to a local mobility domain other than the MAG(connection with the MAG) if the connection with the MAGis already established.

Mobile terminal and network node

A method for performing selective updating procedure of service advertisements. In this method, a Master personal gateway () chooses a Slave personal gateway () to update from its service list (step). The Master personal gateway () uses the service description stored in its service list to determine if the Slave personal gateway () of PAN () has the capabilities to use the service advertised (step). The Master personal gateway () then forwards the service advertisement to the Slave personal gateway () (step). The Slave personal gateway () updates its service list and advertises the service within its PAN () (step).

Growing community of inventors

Singapore, Singapore

Chun Keong Benjamin Lim