Patent application number | Description | Published |
20090161558 | ROUTING LOOP DETECTION CONTROL APPARATUS - There is disclosed a technique which can detect a packet routing loop (in particular, a nesting loop formed by MRs (mobile routers). According to this technique, an MR | 06-25-2009 |
20090190564 | COMMUNICATION SYSTEM AND MOBILE HOME AGENT - A technique is disclosed to decrease unnecessary routing during communication between a mobile node and a correspondent node in case a home agent of the mobile node is a mobile home agent. According to this technique, HA | 07-30-2009 |
20090268664 | COMMUNICATION ROUTE OPTIMIZATION METHOD AND COMMUNICATION ROUTE OPTIMIZATION CONTROL DEVICE - The present invention provides a technique to optimize communication route when two end nodes separated away from own home perform data communication with each other. According to this technique, a communication node (the initiator node | 10-29-2009 |
20100014464 | COMMUNICATION METHOD, COMMUNICATION SYSTEM, HOME AGENT, AND MOBILE NODE - The present invention provides a technique to prevent the generation of a large number of binding update messages in an overlay network when a mobile node changes connection points. According to this technique, in a communication system where a home agent HA | 01-21-2010 |
20100046419 | Overlay Network Node, Mobile Node, and Mobile Router - A technique is disclosed, by which generation of redundant signaling caused by processing to establish route optimization can be suppressed. According to this technique, an overlay network is formed on a network, and an overlay network service of home agent is provided by a pHA (proxy home agent) | 02-25-2010 |
20100085915 | Overlay Network Node - A technology is disclosed for actualizing route optimization on a network base, even when privacy-sensitive information, such as a position of a mobile node, is not revealed between two different networks. In the technology, a pHA | 04-08-2010 |
20100097993 | System for Effective Position Management Signaling Associated with Mobile Node Moving in Mobile Network, Router, Mobile Node, and Mobile Router - The present invention provides a system and method for achieving fast and efficient location management signaling between a mobile node, which is nested in a mobile network for possibly long periods of time, and a plurality of correspondent nodes and home agents associated with the said mobile node. More particularly, the present invention relates to attaining fast and efficient location management signaling by means of secure delegation of signaling rights to some trusted signaling proxy server in the fixed domain, which does the location management signaling for the mobile node as a signaling proxy for the mobile node. This signaling proxy server discovered is such that it is in the natural path of the care-of test packets and also be able to send the care-of test init packets using MN's care-of address overcoming ingress filtering. | 04-22-2010 |
20100189000 | PREFIX INFORMATION CHECK DEVICE AND COMMUNICATION DEVICE - Disclosed is a technique to prevent the registration of false information that a mobile router is managing prefix information that is not actually managed. According to the technique, when a mobile network prefix is registered from an MR (mobile router | 07-29-2010 |
20100202352 | SYSTEM, METHOD AND APPARATUS FOR ROUTE-OPTIMIZED COMMUNICATION FOR A MOBILE NODE NESTED IN A MOBILE NETWORK - In a future scenario where end to end route optimization protocol such as the Access Router Option protocol and Hierarchical Mobility Management protocol are implemented in the visiting mobile nodes, mobile routers and the mobility anchor points, routing sub-optimality may occur when visiting mobile node that is nested is trying to communicate with the correspondent node. To overcome such routing sub-optimality arising in this heterogeneous protocol scenario, this invention presents a primary mechanism where the registration at the mobility anchor point is such that the local care-of address associated with visiting mobile node and local care-of addresses associated with upstream mobile routers of the visiting mobile node can be obtained using a single access router option protocol type of recursive tracing mechanism. Such tracing is achieved by embedding a different type of address in the access router option based binding registration at the mobility anchor point. | 08-12-2010 |
20100202385 | SYSTEM, METHOD AND APPARATUS FOR ROUTE-OPTIMIZED COMMUNICATION FOR A MOBILE NODE NESTED IN A MOBILE NETWORK - To overcome the routing sub-optimality problem arising in the heterogeneous protocol scenario where end-to-end route optimization protocol such as the Access Router Option protocol and Hierarchical Mobility Management protocol are implemented in the mobile hosts and mobile routers, this invention presents three methods. The first method is such that when visiting mobile node or mobile router wants to perform access router option based route optimization with some node, it will use its local care-of address as its care-of address. The second method is such that when visiting mobile node or mobile router decides to use hierarchical mobility management with some node, it will use regional care-of address as its care-of address. The third method is such that when there is legacy mobility anchor point in architecture, mobile router does not send the mobility anchor point option in its router advertisement. | 08-12-2010 |
20100214982 | COMMUNICATION CONTROL METHOD, NETWORK NODE, AND MOBILE TERMINAL - A technology is disclosed with which a mobile terminal moving in a PMIP domain receives various types of prefixes and selects a type of an address to be configured, and route optimization is performed without adding a signaling load on the PMIP domain. According to the technique, when connecting with a home domain, a MN ( | 08-26-2010 |
20100268804 | ADDRESS ALLOCATION METHOD, ADDRESS ALLOCATION SYSTEM, MOBILE NODE, AND PROXY NODE - Disclosed is a technique for switching a forwarding address of a packet destined for a mobile node in a local mobility domain when the mobile node has a plurality of interfaces so that the packet will be forwarded to the mobile node. According to the technique, an MN | 10-21-2010 |
20100275253 | COMMUNICATION METHOD, COMMUNICATION SYSTEM, MOBILE NODE, AND COMMUNICATION NODE - There is provided a technique for reducing the number of messages handled in a Return Routability (RR) procedure for performing authentication between a mobile node (MN) and a peer communication node (CN). According to the technique, an MN | 10-28-2010 |
20100296443 | SYSTEM, METHOD AND APPARATUS FOR ROUTE-OPTIMIZED COMMUNICATION FOR A MOBILE NODE NESTED IN A MOBILE NETWORK - When a mobile host or mobile router in nested mobile network is roaming in a domain with multiple mobility anchor points, if the mobile host or mobile router in the nested mobile network tree path chooses different mobility anchor points to derive its regional care-of address, routing sub-optimality may occur. To overcome such routing sub-optimality, this invention presents two main methods. The first method is where the mobile router detects that a downstream node in its tree path has derived a regional care-of address from another mobility anchor point, and will make appropriate on-demand duplicate registration at the other mobility anchorpoint. The second method is such that the mobile router informs its own mobility anchor point of other mobility anchor point addresses, so that the mobile router's mobility anchor point will pass the location entries of the mobile router to the other mobility anchor points. | 11-25-2010 |
20100309880 | CONNECTION STATE REPORTING METHOD AND MOBILE TERMINAL USED IN THE METHOD - A technology is disclosed for providing a connection status notifying method and the like that can infer that a new connection will become usable shortly based on a predetermined action, and give notification thereof. The technology includes a step at which a mobile node | 12-09-2010 |
20100316035 | POSITION INFORMATION MANAGEMENT DEVICE, NETWORK EDGE DEVICE, AND MOBILE TERMINAL - Disclosed is a technique that, in a network-based local mobility management method, reduces the load of a network node for managing position information of a mobile terminal and achieves a high scalability with respect to the number of mobile terminals. According to the technique, a LMA (Local Mobility Anchor) ( | 12-16-2010 |
20110103260 | BINDING CACHE CREATING METHOD, BINDING CACHE CREATING SYSTEM, HOME AGENT, AND MOBILE NODE - Disclosed is a technique to, when a mobile node including a plurality of interfaces roams in a home domain, reduce signaling to create a client-based binding cache in a home agent and manages the same. When a MN ( | 05-05-2011 |
20110116450 | MOBILE TERMINAL AND NETWORK 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) | 05-19-2011 |
20110116475 | VERTICAL HANDOFF METHOD, VERTICAL HANDOFF SYSTEM, HOME AGENT, AND MOBILE NODE - The invention provides a technique to reduce a packet size of signaling to request vertical handoff in case a mobile node has static vertical handoff rules. According to this technique, MN | 05-19-2011 |
20110134869 | PREFIX ALLOCATION ADMINISTRATION SYSTEM AND MOBILE TERMINAL, AND PREFIX ALLOCATION ADMINISTRATION DEVICE - Disclosed is a technique for minimizing the number of prefixes to be allocated to a mobile terminal when the mobile terminal having multiple access technologies moves within a mobility management domain of a local network. According to the technique, management is so performed that prefixes necessary for a mobile terminal (MN | 06-09-2011 |
20110170531 | PREFIX ASSIGNING METHOD, PREFIX ASSIGNING SYSTEM AND MOBILE NODE - The present invention discloses a technique to bind home address of a mobile node to prefixes assigned to a mobile node having a plurality of interfaces, and the present invention reduces number of binding update messages and a packet size. According to this technique, length (e.g. 64 bits) of an original prefix P | 07-14-2011 |
20110208847 | ADDRESS REGISTRATION METHOD, ADDRESS REGISTRATION SYSTEM, MOBILE DEVICE AND MOBILE MANAGEMENT DEVICE - Disclosed is a technique in which, when respective addresses of multiple interfaces of a mobile node are registered with a mobile management device, a delay in transmission of packets destined to addresses other than the source address of a bulk registration message is prevented. According to the technique, an MN | 08-25-2011 |
20120063428 | Interface Switching System, Mobile Node, Proxy Node, and Mobile Management Node - A technology is disclosed for preventing packet and transferring packets to a switched interface with minimal delay, when a mobile node switches a using interface. According to the technology, when a MN | 03-15-2012 |
20120106554 | REDIRECTION METHOD, REDIRECTION SYSTEM, MOBILE NODE, HOME AGENT, AND PROXY 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 LMA | 05-03-2012 |
20120155313 | COMMUNICATION SYSTEM, MOBILE TERMINAL, NETWORK NODE, AND BASE STATION APPARATUS - 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/MN | 06-21-2012 |
20130028172 | PATH SWITCHING SYSTEM, PATH SWITCHING METHOD, AND MOBILE TERMINAL - 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. | 01-31-2013 |