Qualcomm Incorporated

3Com Corporation

Utstarcom, Incorporated

Vtstarcom, Inc.

Richard John Dynarski

Yingchun Xu

Matthew H Harper

David R Mazik

Vincent Douglas Park

Kenneth L Peirce, Jr

Andrew Bezaitis

Timothy Glenn Mortsolf

Alan William O'Neill

Leonid Sigal

Rajiv Laroia

Vladimir G Parizhsky

Georgios Tsirtsis

M Scott Corson

George Tsirtsis

Wayne A Cichosz

Prashanth Haridas Hande

Michael S Borella

Murari Srinivasan

David A Grabelsky

Pablo Alejandro Anigstein

Mathew Scott Corson

Hesham Soliman

John Poplett

James Kelleman

Dwight D Dipert

Martin A K Schwan

Prasanna Nadhamuni

Matthew Impett

Salvador Aguinaga

Brian Fitzpatrick

Gerard T Jankauskas

Matthew Scott Corson

Alan O'neill

Scott M Corson

George Flarion Technologies Inc Tsirtsis

Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.

Enhanced techniques for using core based nodes for state transfer

Embodiments describe mobility management utilizing neighbor discovery and at least two pseudo wires. When a wireless device desires to handoff to a detected access router, such handoff may not be configured until such time as a current access router receives routing information of the target access router. In order to minimize handoff time, communication between the target access router and the wireless device can be through the current access router utilizing least two pseudo wires. Bidirectional neighbor discovery and create is conducted by the access routers allow subsequent wireless devices to automatically handoff between the access routers.

Pseudo wires for mobility management

Systems and methodologies are described that facilitate assigning a flow (e.g., IP flow) to a wireless network link from a bundle that includes a plurality of wireless network links. Assignments can be based upon characteristics associated with the flow and characteristics associated with the links. For example, a service class corresponding to the flow can be evaluated to determine flow related characteristics. Moreover, link related feedback can be analyzed to determine characteristics of the links.

IP flow-based load balancing over a plurality of wireless network links

A messaging entity within a messaging system may facilitate registration with the messaging system by software components. The messaging entity may facilitate unicast communication between registered software components. The messaging entity may facilitate registration for multicast events by software components. The messaging entity may facilitate multicast communication between registered software components.

Inter-process communication methods and apparatus for building scalable/redundant telecommunications systems

Methods and a gateway apparatus for facilitating communication between communications devices which support different communications protocols are described. The gateway device may receive an identifier of interest from a first device which supports a first communications protocol but not a second communications protocol. The gateway monitors signals corresponding to the second communications protocol to detect signals corresponding to the identifier of interest. An externally perceivable alert is generated by the gateway device when a signal corresponding to the identifier of interest is detected. Communications is established between the first communications device and a second communications device with the gateway device performing protocol conversion to the extent required. The first device may power down its interface after sending the identifier of interest to the gateway and then power up the interface in response to sensing of the alert or input from a user responding to the alert.

Methods and apparatus for communicating using a gateway communications device having alert generation capability

Methods and apparatus for establishing communication links, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the establishment of initial links to a first access node and the establishment of new links from a first access node to a second access node during a handoff operation using highly efficient messages and signal.

Wireless terminal methods and apparatus for establishing connections

A multi-service access platform may have network interface cards and application cards. The network interface cards may interface the multi-service access platform to an ingress network and an egress network. The network interface cards may be coupled to the application cards by a network distribution bus. As a result, the application cards may perform digital signal processing on signals received from the ingress network. Additionally, the application cards may be coupled to a packet switching fabric. The packet switching fabric may facilitate exchange of signals between the application cards. Additionally, the packet switching fabric may permit exchange of the signals with the egress network.

Multi-service access platform for telecommunications and data networks

A method to support the assignment of a globally unique network public address and, optionally, a number of locally unique ports to a first private network subdevice having a private network address on a network access system from a second private network subdevice having a public network address using Realm Specific Internet Protocol, wherein the public network address is used by the first private network device to communicate with network devices on an external network.

Method for address mapping in a network access system and a network access device for use therewith

In a Quality of Service system, segments in a TCP session are assigned a priority level. A segment may contain an acknowledgement and data. The system determines if network congestion is detected or anticipated in the segment's priority band or in a higher priority band. When the TCP segment arrives at a network point, the segment is split into an acknowledgement segment and a data segment. The acknowledgement segment is scheduled at a higher QoS priority than the data segment.

Method for splitting data and acknowledgements in a TCP session

A method is described of automatically locating and connecting a mobile wireless communications device to a packet-switched network such as the Internet. An Internet Protocol (IP) packet from a terminal on the network, destined for receipt by the mobile device, is received at a home agent acting as a gateway or router linking the packet switched network to a second network, such as LAN, coupled to a wireless communications network. The home agent transmits an access-request message to an authentication server. The access-request message includes a destination IP address associated with the mobile device found in the IP packet. The authentication server responsively issues an access-accept message to the home agent if the mobile device is authorized to receive the IP packet. The access-accept message comprises (a) information uniquely identifying said device, such as the IMSI/ESN number for the device, and (b) information identifying a network to use to locate said device. The home agent issues a message containing the information uniquely identifying the device to a mobile node location server. The mobile node location server maintains a table mapping IP addresses for a plurality of mobile communication devices to information uniquely identifying the devices. In the event that the mobile node location server does not find an IP address for the device in the table, the device is paged via the wireless communications network. In response to the page, the mobile device dials into the wireless communications network and second network and initiates a connection to the packet switched network whereby the IP packet is transmitted to the device.

Dynamic allocation of wireless mobile nodes over an internet protocol (IP) network

Multiple home agents for a home agent service provider network are implemented in a single computing platform in software as multiple virtual home agents. Each home agent is assigned or dedicated to a single virtual private network. Any number of home agents can be realized in the computing platform by multiple instantiations of a home agent program or code, and by providing unique IP addresses for each instantiation. Each home agent runs independently, and is independently configured and managed by the subscriber of the virtual private network service, freeing the service provider of having to manage and supervise low level processing tasks and customization features that the subscribers may want. In a representative embodiment, the computing platform comprises a router having a general purpose-computing platform.

Virtual home agent service using software-replicated home agents

Tones that are generated by a telephone or PC (such as DTMF tones) and subject to loss or noise during generation or during transmission along a medium are detected and replaced with substantially noise-free and distortionless digital signals. In one embodiment, the replacement of the tones is done in a modem embodied in an Internet telephony Gateway/Terminal, such as in a network access server coupling a time division multiplexed telephone line to a packet-switched network. The replacement of the tones may also be performed in any suitable device that provides an interface between a time division multiplexed transmission medium and a packet switched data network, such as in the modems of a cellular telephone network to Internet network access server.

Touch tone replacement for internet telephony

A network access server providing remote access to an IP network for a remote client initiates a PPP connection for a remote client quickly, and without requiring re-negotiation of Link Control Protocols and Network Control Protocols. The network access server has a PPP session with the remote client go dormant, for example when the user is a wireless user and goes out of range of a radio tower and associated base station. The network access server does not get rid of the PPP state for the dormant session, but rather switches that PPP state to a new session, such as when the client moves into range of a different radio tower and associated base station and initiates a new active session on the interface to the wireless network. The switching of PPP states may be within a single network access server, or from one network access server to another. This &ldquo;context switching&rdquo; of the active PPP session allows the mobile user to seamlessly move about the wireless network without having to re-negotiate Link Control Protocols and Network Control Protocols every time they move out of range of one radio tower and into range of another radio tower.

Instant activation of point-to point protocol (PPP) connection using existing PPP state

Growing community of inventors

Freehold, NJ, United States of America

Richard John Dynarski