Alcatel Lucent

Alcatel-lucent USA Inc.

Cisco Technology, Inc.

Nokia of America Corporation

Girish P Chandranmenon

Scott Corey Miller

Luca Salgarelli

Yui-Wah Lee

Milind Madhav Buddhikot

Tian Bu

Seung-Jae Han

Sarit Mukherjee

Fang Hao

Tejas Naik

Samphel Norden

Salim Virani

Susan Wu Sanders

Oliver Haase

Larry Hsiao Chang

Pak-Ching Lee

Kazutaka Murakami

Yi Hong

Scott Miller

Techniques for generating a hierarchical representation of a set of monitoring events. In some cases, an example system may generate a tree structure based on a set of monitoring events. The tree structure may be generated by: (i) extracting a set of feature values from the monitoring events, where the feature values may correspond to a defined set of event features, (ii) computing a set of entropy measures, each associated with one of the event features over all of the monitoring events, (iii) selecting an event feature for partitioning the events based on the entropy measures, (iv) dividing the events into subsets based on values of the selected feature, and (v) recursively partitioning the subsets based on entropy-selected features until a tree structure is formed.

Hierarchical event representation in extended detection and response systems

An application layer monitoring module is configured to monitor application layer packets for a call supported by a voice application and to detect an interruption in the call based on the application layer packets. A signaling layer monitoring module is configured to monitor signaling layer events associated with the voice application concurrently with monitoring of the application layer packets for the call. A correlation module is configured to correlate the interruption with the signaling layer events in response to the application layer monitoring module detecting the interruption. The correlation module is also configured to generate a key performance indicator (KPI) message including information indicating the interruption and at least one signaling layer event that is correlated with the interruption.

Diagnosing causes of application layer interruptions in packet-switched voice applications

A network comprises agents which act as proxies on behalf of devices, such as wireless game devices, phones and personal digital assistants. Each agent collects information concerning a 'presence status' of a device. An agent determines whether to forward messages on to a device depending on the collected presence status (e.g., active/inactive) of the device. For example, if the presence status indicates the device is active then messages will be forwarded. If, however, the status indicates the device is inactive the message will not be forwarded. Instead, the agent may act as a proxy for the device while it is inactive. By only forwarding messages when a device is active, valuable airlink time and/or bandwidth can be conserved.

Presence management proxying methods and devices

Sessions, such as on-line gaming sessions, are maintained by proxy agents on behalf of users even when the users are inactive. The agents, along with other components, form a novel 'always-on' architecture that greatly reduces the time it takes to initiate and carry out sessions.

Methods and devices for maintaining sessions based on presence status information

An apparatus and method for improving synchronization between threads in a multi-core processor system are provided. An apparatus includes a memory, a first processor core, and a second processor core. The memory includes a shared ring buffer for storing data units, and stores a plurality of shared variables associated with accessing the shared ring buffer. The first processor core runs a first thread and has a first cache associated therewith. The first cache stores a first set of local variables associated with the first processor core. The first thread controls insertion of data items into the shared ring buffer using at least one of the shared variables and the first set of local variables. The second processor core runs a second thread and has a second cache associated therewith. The second cache stores a second set of local variables associated with the second processor core. The second thread controls extraction of data items from the shared ring buffer using at least one of the shared variables and the second set of local variables.

Method and apparatus for using a shared ring buffer to provide thread synchronization in a multi-core processor system

A method, apparatus, and computer-readable storage medium for generating a mobile flow record for a mobile flow of a mobile node are provided. A method includes receiving information associated with signaling traffic of the mobile node, receiving information associated with bearer traffic of the mobile node, and generating the mobile flow record by correlating the information associated with signaling traffic of the mobile node and the information associated with bearer traffic of the mobile node. The mobile flow record includes IP layer information associated with the mobile flow and wireless layer information associated with the mobile flow.

Method and apparatus for mobile flow record generation and analysis

A mobile node comprises: a plurality of network interfaces, each with a respective device driver; a network layer; a multi-interface driver capable of communication with each network interface by way of the respective device driver for that network interface, the multi-interface driver handling communications from the network layer to any of the network interfaces; the multi-interface driver switching from a first one of the network interfaces to a second one of the network interfaces by changing the one of the plurality of network interfaces with which the multi-interface driver communicates, while hiding the switching from the network layer.

Multi-interface mobility client

A gateway for mobile access includes a foreign agent that receives user profile data and session state data from a home authentication, authorization and accounting (AAA) system of a mobile node, and a dynamic packet filter that performs multi-layer filtering based on the user profile data. The foreign agent transfers a session from a first network to a second network without session interruption, using the session state data, when the mobile node moves from the first network to the second network. The packet filter permits Internet access by the mobile node without passing Internet data requested by the mobile node through the first network.

Mobility access gateway

A gateway for mobile communications comprises a cache for storing network data recently downloaded from a network, a foreign agent, and a packet filter that directs requests for the network data from a mobile node to the cache. The packet filter directs the requested network data from the cache to the mobile node by way of the foreign agent, without forwarding the requested network data to a home agent of the mobile node.

Integrated web cache

Signaling paths and communication sessions, such as voice-over-IP sessions, can be established in substantially shorter and predictable time periods than previously thought possible over carrier-based, peer-to-peer networks (P2P). Instead of requiring a signaling pathway to traverse a large number of hops/nodes, novel architectures permit a signaling pathway to traverse a few designated host and anchor nodes that are part of a core of a P2P network. The novel architectures and related methods also make it possible to easily manage and maintain P2P networks.

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Edison, NJ, United States of America

Girish P Chandranmenon