Patent application number | Description | Published |
20080198806 | Method and system for managing address prefix information associated with handover in networks - Method and system for managing address prefix information associated with handover in network. A fast handover process is achieved for point-to-point communication model. A mobile node send a provisional new care-of-address with an aggregate prefix part to its previous access router, which forwards the address to a new access router. The new access router in response generates a modified new care-of-address with a unique prefix part for the mobile node. Alternatively, the mobile node sends a request to the previous access router for a unique prefix. The request is forwarded from the previous access router to the new access router. The new access router assigns a unique prefix for the mobile node. | 08-21-2008 |
20080270534 | METHOD AND APPARATUS FOR IP MOBILITY MANAGEMENT SELECTION - A communication network system having capability for IP mobility management selection. The communication system includes a server, a network entity, and at least one mobile node. The network entity is configured to provide its IP mobility management information to the server, whereas the mobile node is configured to provide its IP mobility management information to the server. In the communication system, the server is configured to make a selection of IP mobility management mechanism based on the information provided by the network entity and the mobile node. The server then sends the selection to the network entity. In a specific embodiment, the server can be an Authentication, Authorization and Accounting (AAA) server. Here, the IP mobility management information includes one or more supported IP mobility management protocols. For example, the supported IP mobility management protocols can include mobile IPv4, mobile IPv6, dual stack mobile IP, and proxy mobile IP, etc. | 10-30-2008 |
20090003297 | METHOD AND APPARATUS FOR DYNAMIC LMA ASSIGNMENT IN PROXY MOBILE IPv6 PROTOCOL - Methods and apparatuses are provided for supporting mobility in a Proxy Mobile Internet Protocol (“IP”) network without having a mobile node (“MN”) to participate in certain mobility related signaling. Instead, a proxy agent might implement functions of a mobile access gateway (“MAG”) in a Proxy Mobile Internet Protocol Version 6 (“IPv6”) network. The proxy agent, rather than the MN, might send a request to a Dynamic Host Configuration Protocol (“DHCP”) server, and receive back a local mobility anchor address (“LMAA”) of a local mobility anchor (“LMA”). The proxy agent might instead perform a Domain Name System (“DNS”) lookup for the LMAA of the LMA first; in response to a failure to receive the LMAA, the proxy agent might then send the request to the DHCP server to receive the LMAA. The proxy agent might further update DNS information of the MN. | 01-01-2009 |
20090210542 | SIMPLIFIED PROTOCOL FOR CARRYING AUTHENTICATION FOR NETWORK ACCESS - Methods and system for simplified Protocol for Carrying Authentication for Network Access (sPANA) are disclosed. In the broadband architecture such as Broadband forum or WiMAX forum, a Network Access server (NAS) is one IP hop away from a user. Therefore, it is possible to relax the need in PANA to obtain an IP address prior to authentication. A PANA client (PaC) may use an unspecified IP address (e.g. 0.0.0.0 in TPv4) as a source address for authentication. A PANA Authentication Agent (PAA) may use an IP broadcast address as a network layer destination address (e.g. oxffffffff). The present invention defines PANA Attribute-Value Pairs (AVPs) and procedures that allow a Challenge-Handshake Authentication Protocol (CHAP) exchange to occur in PANA. The PANA CHAP support may facilitate smooth migration from Point-to-Point Protocol (PPP) sessions to IP sessions in a DSL Broadband network environment. The sPANA can be desirably compatible with the PANA. | 08-20-2009 |
20090245149 | Multi-Protocol Label Switching Support for Proxy Mobile Internet Protocol Version 6 - A mobility access gateway (MAG) comprising at least one processor configured to implement a method comprising establishing a multi-protocol label switched (MPLS) tunnel with a local mobility agent (LMA), and establishing communications with a plurality of mobile nodes (MNs) associated with a plurality of service providers, wherein a plurality of packets destined for the LMA comprise a label that distinguishes between the service providers. Also disclosed is a method comprising receiving a packet destined for a MN, adding an inner label to the packet, wherein the inner label is associated with the MN, and adding a tunnel label to the packet. | 10-01-2009 |
20090276533 | Authentication Option Support for Binding Revocation in Mobile Internet Protocol version 6 - A network component comprising at least one processor configured to implement a method comprising sending a message comprising an authentication mobility option to a mobile node, wherein the message is configured to revoke a mobility binding for the mobile node is disclosed. Also disclosed is a system comprising a home agent configured to send a binding revocation indication (BRI) to a mobile node and receive a binding revocation acknowledgement (BRA) from the mobile node, wherein the BRI comprises a first authentication mobility option and the BRA comprises a second authentication mobility option. Included is a method comprising receiving a BRI message comprising an authentication mobility option from a home agent, analyzing the authentication mobility option, and sending a BRA message to the home agent. | 11-05-2009 |
20090285215 | Internet Protocol Version Six (IPv6) Addressing and Packet Filtering in Broadband Networks - A method comprising sending a dynamic host configuration protocol (DHCP) message comprising an Identity Association for Prefix Delegation (IA_PD) Prefix option comprising a Internet Protocol version 6 (IPv6) prefix and a length of the IPv6 prefix to a device having a media access control (MAC) address, receiving from the device a packet comprising a source MAC address and a source IPv6 address, and dropping the packet when the MAC address is equal to the source MAC address and the leftmost bits of the source IPv6 address defined by the length are not equal to the IPv6 prefix. | 11-19-2009 |
20090290539 | Method and apparatus for home agent address acquisition for IPv4 mobile nodes - A method and apparatus for home agent address acquisition for IPv4 mobile nodes is provided. A method for device operation includes sending a request message to an authentication, authorization, and accounting (AAA) server, and receiving a reply message from the AAA server. The reply message contains an assigned Internet Protocol version 4 (IPv4) address of a home agent and the home agent is deployed with a dual stack mobile Internet Protocol version 6 (IPv6) function. | 11-26-2009 |
20100020747 | Method and Apparatus for Home Agent Redirect - A method and apparatus for home agent redirect is provided. A method for redirecting a device from a first home agent to a second home agent includes sending a first message to the first home agent, receiving a second message from the first home agent, and sending a third message to the second home agent. The first message includes a binding update, and the second message includes a binding acknowledgement and a redirect indication that the device is being redirected to the second home agent. The third message includes a binding update, and an address of the first home agent. | 01-28-2010 |
20100046512 | Method and Apparatus for Tunnel Packet Optimization - A method and apparatus for tunnel packet optimization is provided. A method for communications node operation where the communications node is at a beginning of a tunnel includes receiving a message from a communications device at an end of the tunnel, processing a packet having a first source address and a first destination address, and encapsulating the packet with an outer header having a second source address and a second destination address, thereby producing a tunnel packet. The message includes a flow label related to the first source address and the first destination address. The method also includes compacting the tunnel packet based on a tunnel optimization (TO) state, and transmitting the tunnel packet towards the second destination address. The second destination address includes an address of the communications device at the end of the tunnel. | 02-25-2010 |
20100095011 | System and Method for Remote Authentication Dial In User Service (RADIUS) Prefix Authorization Application - An apparatus comprising a client node configured to communicate with a server node and a plurality of mobile nodes, wherein the client node is configured to obtain Prefix Authorization (PA) for the mobile node from the server node using a Remote Authentication Dial In User Service (RADIUS) protocol. Also disclosed is a network component comprising at least one processor configured to implement a method comprising sending an Access-Request message to an Authentication, Authorization, and Accounting (AAA) PA server using a RADIUS protocol, receiving an Access-Accept message from the AAA PA server using the RADIUS protocol if the Access-Request message is accepted by the AAA PA server, and receiving an Access-Reject message from the AAA PA server using the RADIUS protocol if the Access-Request message is not accepted by the AAA PA server. | 04-15-2010 |
20100157866 | Apparatus and Method for Proxying Powered Off Interfaces Using the Active Interface - An apparatus comprising a mobile node (MN) comprising a first radio interface and at least one second radio interface, wherein a point of service (PoS) is configured to communicate with the MN via the first radio interface to proxy the second interface, and wherein the first interface is an active interface and the second interface is a powered off interface. Also included is an apparatus comprising at least one processor configured to implement a method comprising setting an interface between a MN and a network in a powered off mode, tracking the mobility of the MN on behalf of the network when the interface is powered off, and waking up the interface when a call arrives in the network for the interface. | 06-24-2010 |
20110080866 | Mobility route optimization in a network having distributed local mobility anchors - A method, system and device for achieving an optimized mobility routing path are disclosed. A preferred embodiment comprises a method of cutting unnecessary network tunnels. In a mobile network system, transmitting data packets through a tunnel is an effective way to provide network location privacy. An optimization method is proposed to consolidate two tunnels connecting with a network element such as a first distributed local mobility anchor (D-LMA). The first D-LMA informs a data packet sender such as a second D-LMA of the destination address saved in the first D-LMA. The second D-LMA updates its destination address accordingly and sends subsequent data packets to the destination directly. By applying this optimization method, a network system provides a further optimized route for data packets as well as location privacy. | 04-07-2011 |
20110080872 | Distributed Local Mobility Anchors for Achieving Optimized Mobility Routing - A method and system for optimizing mobility routing are disclosed. A preferred embodiment comprises a home local mobility anchor and two or more distributed local mobility anchors, wherein the distributed local mobility anchors have a reduced functionality from the home local mobility anchor. A first distributed local mobility anchor may send an initial data packet from a correspondent node to the home local mobility anchor, which may route the initial data packet to a second distributed local mobility anchor where a mobile node is anchored while also sending the location of the mobile node back to the first distributed local mobility anchor. Subsequent packets can be sent by the first distributed local mobility anchor directly to the second distributed local mobility anchor and bypassing the home local mobility anchor. | 04-07-2011 |
20130034108 | System and Method for Communications Network Configuration - A method for operating a first communications device includes transmitting a provisioned network list to an access router, and receiving a logical router interface address for each network in the provisioned network list. The method also includes transmitting a first message to one of the logical router interface addresses corresponding to a first selected network, receiving a first address prefix for a first gateway router of the first selected network, and transmitting a first packet to a second communications device, the first packet including the first address prefix as a source prefix. | 02-07-2013 |