| Patent application number | Description | Published |
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| 20090324222 | Link Diversity and Load Balancing Across Digital and Optical Express-Thru Nodes - The present invention provides a system, apparatus and method to compute a route through a network having both digital nodes and optical express-thru nodes. According to various embodiments of the invention, a network topology is generated in which both digital nodes, optical express-thru nodes, and optical nodes are identified, and both physical and virtual links between these nodes are mapped. The network connectivity is identified, at least in part, by broadcasting a local link state advertisement and optical carrier group binding information to neighboring nodes, which enables both physical and virtual neighboring nodes to be identified. Once a topology is generated, both physical and virtual link characteristics are analyzed to ensure link diversity for traffic through the network and load balancing functionality across the network. | 12-31-2009 |
| 20100208583 | PATH-LEVEL PROTECTION FOR DIGITALLY WRAPPED PAYLOADS - A node, of a group of nodes, may detect a failure on a first path; establish a connection associated with a second path when the failure on the first path is detected; store an identifier in a field in an overhead portion of a data frame when the failure on the first path is detected, the data frame including a payload portion that contains a client signal, the identifier instructing another one of the nodes to establish a connection associated with the second path; and transmit the data frame to the other one of the nodes via the second path. | 08-19-2010 |
| 20110004700 | PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL - A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the frame payload section of the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data. | 01-06-2011 |
| 20110032938 | DISTRIBUTED RSVP-TE IN A MULTI-CHASSIS NODE ARCHITECTURE - A network device includes a multi-chassis system in which each chassis includes a RSVP-TE protocol stack that may provide RSVP-TE services for LSP tunnels associated with each chassis. The multi-chassis system may include an administrative chassis. The administrative chassis may forward RSVP messages to other chassis of the network device. The administrative chassis may encapsulate the RSVP messages with a chassis address. The other chassis may de-encapsulate the RSVP messages and process the RSVP messages according to the RSVP-TE protocol. The administrative chassis may obtain session information associated with other chassis based on RSVP messages received. The administrative chassis may manage adjacency mechanisms and failure and recovery mechanisms. The multi-chassis system including the distributed RSVP-TE protocol stacks may minimize scalability issues and improve performance when high-capacity routing and/or switching services are needed. | 02-10-2011 |
| 20110075549 | FAST PROTECTION PATH ACTIVATION USING CONTROL PLANE MESSAGES - A method, performed in a network that includes a group of nodes, includes identifying a path through a set of the nodes, where each node, in the set of nodes, has a data plane and a control plane; establishing a control plane tunnel, associated with the path, within the control plane of the nodes in the set of nodes; establishing a data plane tunnel, associated with the path, within the data plane of the nodes in the set of nodes, where the data plane tunnel is associated with the control plane tunnel and established through the same set of nodes; and transmitting a control message through the control plane tunnel to change a state of the data plane tunnel. | 03-31-2011 |
| Patent application number | Description | Published |
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| 20100087174 | CALL DISPLAY METHOD UTILIZED IN A COMMUNICATIONS SYSTEM - When a caller communications device receives a calling instruction from an input unit of a caller communications device, the image capturing unit takes an instant picture. The caller communications device then sends the instant picture and calling data to a communications server. Afterwards, the communications server sets up a communication link with a receiver communications device according to the calling data so as to forward the instant picture to the receiver communications device. Then the instant picture is displayed on a display of the receiver communications device. After the communications server receives a confirmation instruction from the receiver communications device, a communication link is established between the caller communications device and the receiver communications device. | 04-08-2010 |
| 20100136962 | APPARATUS, SYSTEM, AND METHOD FOR MOBILE COMMUNICATION - The invention discloses a mobile communication apparatus, for communicating with a callee or a caller through a first communication network. The mobile communication apparatus includes a communication module and a processing module. The communication module is used to connect the first communication network and a second communication network; whereas the processing module is connected to the communication module, for comparing signal quality of the first communication network with signal quality of the second communication network. Particularly, the mobile communication apparatus of the invention can switch the communication networks without hanging up the current communication. | 06-03-2010 |
| 20100136983 | METHOD OF USING AVAILABLE MOBILE COMMUNICATION TERMINAL AS RELAY STATION - A method of using an available mobile communication terminal as a relay station is applied to base stations (BS) and mobile communication terminals, and each mobile communication terminal can function as a relay station. When a mobile communication terminal performs communication and signals received from a base station are in a state of being weak, a relay request is sent to the base station to search for available mobile communication terminals having communication signals stronger than the signals learned to be weak within a coverage area of the base station which sends out a notice message. After receiving the notice message, an available mobile communication terminal is selected as a relay station, and a register request is sent to the relay station for connecting to the mobile communication terminal. Upon accepting the register request, the mobile communication terminal can be connected to the base station through the relay station. | 06-03-2010 |
