Telcordia Technologies, Inc.

Toshiba America Research, Inc.

Kabushiki Kaisha Toshiba

Yuu-Heng Alice Cheng

Yoshihiro Oba

Subir Das

Kenichi Taniuchi

Victor Fajardo

Miriam Tauil

Akira Yamada

David Famolari

Ashutosh Dutta

Yoshihiro Ohba

Abhrajit Ghosh

Yutaka Miyake

Alexander Poylisher

Ravichander Vaidyanathan

D Scott Alexander

Kenich Taniuchi

Yoshihiro c/o Toshiba America Research Inc Oba

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.

Data type encoding for media independent handover

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.

Efficient and loss tolerant method and mechanism for measuring available bandwidth

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.

Prioritized query

A system and method for policy based management for a high security MANET comprises policy managers, each performing policy decision-making and policy enforcement using multiple policies, containers, each related to an application and each container having one policy manager, nodes, each having an infrastructure and at least one container, and dynamic community building blocks associating the containers having a same application, the containers being in different nodes, the associated containers maintained by the dynamic community building blocks on a secure network. Each container can define a security boundary around the node. Each container can be a lightweight virtual machine. The system can also have a special container having a policy manager only evaluating policies for conflicts. In one embodiment, a node can consist of multiple network devices and each network device is a container of its own.

System and method for policy based management for a high security MANET

A media-independent handover (MIH) environment supports a MIH function that uses a mapping table to communicate with other MIH functions using a MIH transport protocol. The MIH function updates the mapping table upon receipt of a message having fields to invoke an operation. The operation can update an existing mapping or delete a mapping. The operation also can update a lifetime value for a mapping for a particular address. The mapping table includes mappings. A mapping includes a MIH function identifier, a list of transport addresses, and a lifetime value.

Method and function for maintaining mapping between media independent handover functions and transport addresses

A method and apparatus for detecting spoofed IP network traffic is presented. A mapping table is created to indicate correlations between IP address prefixes and AS numbers, based on routing information collected from a plurality of data sources. At each interface of a target network, IP address prefixes from a training traffic flow are acquired and further converted into AS numbers based on the mapping table. An EAS (Expected Autonomous System) table is populated by the AS numbers collected for each interface. The EAS table is used to determine if an operation traffic flow is allowed to enter the network.

Method and apparatus for detecting spoofed network traffic

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.

Network selection mechanism

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.

Architecture for multiple MIH users

According to some of the preferred embodiments, 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.

Growing community of inventors

Piscataway, NJ, United States of America

Yuu-Heng Alice Cheng