Lucent Technologies Inc.

Alcatel-lucent USA Inc.

Alcatel Lucent

At+t Corp.

Sound View Innovations, LLC

Sanjoy Paul

Katherine Hua Guo

Sarit Mukherjee

Sampath Rangarajan

Markus Andreas Hofmann

Krishan Kumar Sabnani

Hui Joyce Zhang

Tze Sing Eugene Ng

Chueng-Hsien Lin

Xue Li

Richard Dennis Gitlin

Nicholas Frank Maxemchuk

Thomas F La Porta

Ramachendra Prahlada Batni

Ender Ayanoglu

Pramod Pancha

Kuo-Wei Herman Chen

Li Erran Li

Mark John Karol

Richard Wayne Buskens

Marina Thottan

Zygmunt Haas

Clark B Woodworth

Michael Rudolph

Yow-Jian Lin

Bin Yao

David Morris Kristol

Abhijit K Choudhury

Steven H Low

Ya-Tien Ko

Robert Brunetti

Sudhir Aggarwal

Henning G Schulzrinne

Anil Takkallapalli

Muhammad Ali Siddiqui

Jayram Mudigonda

Ethendranath N Bommaiah

Mostafa Ammar

An apparatus and method to enhance existing caches in a network to better support streaming media storage and distribution. Helper machines are used inside the network to implement several methods which support streaming media including segmentation of streaming media objects into smaller units, cooperation of Helper machines, and novel placement and replacement policies for segments of media objects.

Method and system for caching streaming multimedia on the internet

The Fair-Ordering Service delivers action messages to the server as soon as it is feasible. Because action messages from different players exhibit different reaction times with respect to an update message, the Fair-Ordering Service executed at the server dynamically enforces a sufficient waiting period on each action message to guarantee the fair processing of all action messages. The Fair-Ordering Service takes into consideration delayed and out-of-order action messages. When action messages corresponding to multiple update messages are interleaved, the Fair-Ordering Service matches the action message to the appropriate update message by maintaining a window of update messages and using the reaction times for an action message for each of the update messages in the window. This enables state changes at the game server to be performed with fairness to all the players. The Fair-Ordering Service is based on a framework that uses a proxy architecture.

Apparatus and method for fair message exchanges in distributed multi-player games

Communication networks and associated methods are disclosed that provide an advertisement or other type of informational message to a calling party before providing ringback tones. A communication network described herein receives a call from the calling party to the called party, and temporarily interrupts call processing for the call. The communication network then selects an advertisement for the call, and initiates delivery of the advertisement to the calling party. After the advertisement is delivered to the calling party, the communication network resumes call processing for the call. In resuming call processing, the communication network provides ringback tones to the calling party and attempts to connect the call to the called party.

Providing an advertisement to a calling party before ringback

In one embodiment, a call setup message for a call from a calling party device to a called party device is received. At least one calling party parameter for the calling party device is determined. A user message is selected based on the at least one calling party parameter. Delivery of the user message to the calling party device is initiated in parallel with a call setup for the call from the calling party device to the called party device.

User message delivery to calling party device

The invention comprises a method and apparatus for establishing a persistent connection between a user device and a service gateway. Specifically, the method comprises obtaining state information in response to a connection request, establishing a connection between the user device and the service gateway using the state information, and maintaining the state information associated with the connection such that the connection is persistent through at least one network state change.

Method and apparatus for enabling persistent connections with wireless networks

A method and apparatus for establishing a virtual private network (VPN) session for a priority request. The method and apparatus includes identifying a priority request from a plurality of VPN session request classes. Reserved bandwidth is allocated to the priority request if a nominally allocated bandwidth is insufficient to satisfy the priority request. Once the allocated bandwidth is assigned, admission control is applied to the priority request.

Class-based bandwidth allocation and admission control for virtual private networks with differentiated service

A method and apparatus for seamless roaming support for wireless networks is disclosed. The method includes broadcasting a request for a physical address of a default router related to a mobile unit; receiving the request at the default router; replying to the mobile unit; and creating an initial entry in a location table.

Method and apparatus for seamless roaming for wireless networks

The Fair-Order Service of the present invention delivers action messages to the server as soon as it is feasible. Because action messages from different players exhibit different reaction times with respect to an update message, the Fair-Ordering Service executed at the server dynamically enforces a sufficient waiting period on each action message to guarantee the fair processing of all action messages. In reality, the waiting period at the server is bounded because of the real-time nature of interactive games. The algorithms that offer Fair Ordering Service take into consideration delayed and out-of-order action messages. When action messages corresponding to multiple update messages are interleaved, the Fair-Ordering Service matches the action message to the appropriate update message. It accomplishes this by maintaining a window of update messages and using the reaction times for an action message for each of the update messages in the window. This enables state changes at the game server to be performed with fairness to all the players. The Fair-Order Service invention is based on a framework that uses a proxy architecture making it transparent to any specific game application. The service is well suited to client-server based, online multi-player games, where a fair order of player actions is critical to the game outcome.

A method and virtual private network (VPN) system for providing bandwidth guaranteed provisioning in network-based mobile VPN services. The method and system include identifying a set of VPN customers, at least one mobile access point (MAP) and at least one customer premise equipment (CPE) associated with each VPN customer, and at least one Internet Protocol (IP) service gateway (IPSG) for facilitating VPN tunneling between a MAP and a CPE, wherein each MAP is geographically remote from each IPSG. A subset of IPSGs is selected to maximize total profit resulting from provisioning a subset of VPN customers on the selected IPSGs. Total profit from all the customers includes the sum of profits from each customer, where for each customer, the customer profit equals weighted revenue less cost, wherein the cost per customer includes a total tunnel bandwidth cost from the MAP to the CPE, and a cost of provisioning an IPSG node.

Bandwidth guaranteed provisioning in network-based mobile virtual private network (VPN) services

A method and for establishing a virtual private network (VPN) session for a priority request. The method and apparatus includes identifying a priority request from a plurality of VPN session request classes. Reserved bandwidth is allocated to the priority request if a nominally allocated bandwidth is insufficient to satisfy the priority request. Once the allocated bandwidth is assigned, admission control is applied to the priority request.

A new architecture and operational techniques for supporting high quality live and on-demand streaming multimedia on a data network. By using Helper machines inside the network as data forwarding, caching, and buffering agents, and by forming meshes among Helper machines, advantages of homogeneous, synchronous multicast transmission and of heterogeneous, asynchronous reception are achieved. The architecture provides essentially transparently support to the receivers for near-zero start-up latency, improved playback quality, improved CR-like operations. These are achieved while reducing network and server load compared to today's multimedia networking techniques.

High quality streaming multimedia

A method and apparatus for optimizing a distributed polling system in a network comprising a plurality of nodes. The method includes identifying bandwidth constraints on polling traffic for each of the plurality of nodes. Selecting, from a plurality of unpolled nodes within the plurality of nodes, at least one poller node according to a maximum number of unpolled nodes assignable to each of the at least one poller node without violating bandwidth constraints, and respectively assigning the unpolled nodes as pollee nodes to the at least one poller node. The apparatus includes a central manager and a plurality of pollee nodes coupled to at least one poller node via at least one routing path. At least one aggregating node is coupled to the at least one poller nodes, where the aggregating node is further coupled to the central manager.

Distributed network monitoring with bounded link utilization in IP networks

A method and apparatus for providing at least two virtual private network VPN tunnels from a client device in a VPN network having an enterprise gateway and a network VPN gateway. The method and apparatus includes a client device having an Internet Key Exchange (IKE) module for establishing the at least two tunnels using an IKE protocol wherein a first tunnel is an end-to-end VPN tunnel to the enterprise gateway, and a second tunnel is a network-based tunnel to the network VPN gateway. An IPsec Network Driver Interface interfaces with the IKE module, which includes a security authentication database (SADB) that stores downloaded enterprise security policies respectively for each of the at least two tunnels. A routing table stores IP addresses of local presences and hosts respectively associated with the at least two tunnels, whereby packets are routed over the at least two tunnels based on the downloaded policies.

Method and apparatus for providing adaptive VPN to enable different security levels in virtual private networks (VPNs)

Growing community of inventors

Marlboro, NJ, United States of America

Sanjoy Paul