Patent application number | Description | Published |
20080207206 | MEDIA INDEPENDENT PRE-AUTHENTICATION SUPPORTING FAST-HANDOFF IN PROXY MIPv6 ENVIRONMENT - This document describes a proactive mechanism to provide fast-handover involving PMIPv6. In particular, it describes how one can achieve fast handoff for PMIPv6 using Media-independent Pre-Authentication (MPA) technique. It discusses the need for a fast-handoff for PMIPv6 environment. It then describes how MPA techniques could be used during different steps involving both intra-domain and inter-domain handoff for PMIPv6. MPA-based fast-handover takes advantage of the pre-authentication mechanism so that the mobile can perform the access authentication while in the previous local mobility (PMA) domain and thus would be able to complete many of the handoff related operations while still in the previous network. | 08-28-2008 |
20080212783 | KERBERIZED HANDOVER KEYING IMPROVEMENTS - A media-independent handover key management architecture is disclosed that uses Kerberos for secure key distribution among a server, an authenticator, and a mobile node. In the preferred embodiments, signaling for key distribution is based on re-keying and is decoupled from re-authentication that requires EAP (Extensible Authentication Protocol) and AAA (Authentication, Authorization and Accounting) signaling similar to initial network access authentication. In this framework, the mobile node is able to obtain master session keys required for dynamically establishing the security associations with a set of authenticators without communicating with them before handover. By separating re-key operation from re-authentication, the proposed architecture is more optimized for a proactive mode of operation. It can also be optimized for reactive mode of operation by reversing the key distribution roles between the mobile node and the target access node. | 09-04-2008 |
20080248780 | SYSTEMS AND METHODS FOR CURRENCY QUERYING - A system and method is disclosed that includes a currency conversion mechanism for a mobile device prior to authenticating with and accessing a network in a foreign jurisdiction such that the mobile does not require knowledge of exchange rate between the currencies used in visited and home jurisdictions. | 10-09-2008 |
20080310366 | MIH Pre-Authentication - A system and method for performing MIH pre-authentication, which includes providing support for both direct and/or indirect pre-authentication and providing support for both network-initiated and mobile-initiated pre-authentication. | 12-18-2008 |
20090016286 | ARCHITECTURE FOR MULTIPLE MIH USERS - Currently, the I.E.E.E. 802.21 specification allows multiple MIH (Media-Independent Handover) Users in a single MIH Function. However, the specification is not clear about how multiple MIH Users are supported by a single MIHF (MIH Function) under a constraint in which if there is only one MIH User is allowed to change the state of a particular link during a particular period of time. This document proposes a detailed architecture which allows for the co-existence of multiple MIH Users by introducing a link ownership scheme in the MIHF (MIH Function). The proposed link ownership scheme also supports the scenario in which the state of a link of a mobile node is changed by a network node by modifying the MIH_Register primitives in the I.E.E.E. 802.21 specification to signal the set of allocated links to a remote MIH User on the network node. The modification of MIH_Register primitive also has the added benefit of allowing the network node to subscribe to events on a specific set of links present in the mobile node as opposed to not knowing any of the links at all. | 01-15-2009 |
20090047959 | DATA TYPE ENCODING FOR MEDIA INDEPENDENT HANDOVER - A method of employing an encoding scheme for media independent handover, comprising: having at least some data type carry only required information to determine the end of data without a length value | 02-19-2009 |
20090271614 | MOBILITY ARCHITECTURE USING PRE-AUTHENTICATION, PRE-CONFIGURATION AND/OR VIRTUAL SOFT-HANDOFF - In some illustrative embodiments, a novel system and method is provided that can, for example, extend concepts of pre-authentication (such as, e.g., IEEE 802.11i pre-authentication) so as to operate across networks or subnetworks (such as, e.g., IP subnets). In preferred embodiments, a novel architecture includes one or both of two new mechanisms that substantially improve, e.g., higher-layer handoff performance. A first mechanism is referred to as “pre-configuration,” which allows a mobile to pre-configure higher-layer information effective in candidate IP subnets to handoff. A second mechanism is referred to as “virtual soft-handoff,” which allows a mobile to send or receive packets through the candidate IP subnets even before it is actually perform a handoff to any of the candidate IP subnets. | 10-29-2009 |
20100097956 | MULTI-INTERFACE MANAGEMENT CONFIGURATION METHOD AND GRAPHICAL USER INTERFACE FOR CONNECTION MANAGER - A terminal device includes interfaces that establish links to networks. The networks can be wired, wireless, and the like. The terminal device includes a connection manager that manages the network connections based on configured parameters. Based on the configuration parameters it may compare network performance of different links in the device and it may switch or connect to a link having the best connectivity. Parameters are set to configure the connection manager and how it operates. The parameters can be set via a graphical user interface by the user or alternatively by the operator administrator. | 04-22-2010 |
20100115083 | NETWORK SELECTION MECHANISM - A terminal device includes multiple interfaces having links to various networks. When a trigger event occurs, the terminal device selects a target link to a network to transition from its current link. A candidate link selection function determines candidate links that are filtered to remove links not meeting connectivity criteria. A target link selection function is then executed to select a target link from the filtered candidate links. Thus, the target link selection function is not run for every possible link, but only those meeting the criteria. | 05-06-2010 |
20100208613 | EFFICIENT AND LOSS TOLERANT METHOD AND MECHANISM FOR MEASURING AVAILABLE BANDWIDTH - A single burst method is used to determine the available bandwidth in a network environment. A sending node transmits test packets to a receiving node. The size of the test packets is dynamically determining based on network parameters within the network environment. The sending node then receives test receipt packets that have the same sequence numbers as the corresponding test packets. Packet clusters are formed from the test receipt packets. The available bandwidth is determined based on the packet clusters along with values set by the single burst method or inputted by a user. | 08-19-2010 |
20110083168 | Framework of Media-Independent Pre-Authentication - This application describes, among other things, a framework of Media-independent Pre-Authentication (MPA), a new handover optimization mechanism that has a potential to address issues on existing mobility management protocols and mobility optimization mechanisms. MPA is a mobile-assisted, secure handover optimization scheme that works over any link-layer and with any mobility management protocol. This application also shows, among other things, an initial implementation of MPA in our testbed and some performance results to show how existing protocols could be leveraged to realize the functionalities of MPA. | 04-07-2011 |
20120165009 | PRIORITIZED QUERY - A solution framework is employed that includes defining of a mechanism to run multiple queries in a single message exchange, along with a priority on a per-query basis. In some embodiments, a system for facilitating handover of a mobile device across heterogeneous access networks by ensuring response to queries transmitted by the mobile device includes: a) a mobile device having a plurality of wireless network interfaces for communicating over a plurality of heterogeneous access networks, having a media independent handover (MIH) entity to facilitate handovers between the heterogeneous networks, and configured to transmit queries related to handover operation between the heterogeneous access networks to MIH entities within said heterogeneous access networks; and b) said media independent handover entity of said mobile device being configured to transmit multiple queries in a single message exchange to an MIH entity in an access network with prioritization among said multiple queries. | 06-28-2012 |