Patent application number | Description | Published |
20080247526 | SYSTEM FOR IMPROVING OPERATIONS IN AN IMS NETWORK - A system for improving operations in an Internet Protocol Multimedia Subsystem (IMS) network is provided. A system that incorporates teachings of the present disclosure may include, for example, a Telephone Number Mapping (ENUM) system having a controller element to receive from a terminating Serving Call Session Control Function (S-CSCF) first contact information for a communication device and second contact information for the terminating S-CSCF. Additional embodiments are disclosed. | 10-09-2008 |
20080262958 | SYSTEM AND METHOD FOR REVERSE AUCTIONING - A system and method for reverse auctioning is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a system comprising a controller element to receive from a communication device a request for information associated with one or more commercial enterprises situated in a vicinity of a location fix of the communication device, identify information of one or more commercial enterprises that substantially match the desired commercial enterprise type and that are in the vicinity of the location fix, and transmit to the communication device information of at least one of the one or more commercial enterprises identified for purposes of engaging in a reverse auction. Additional embodiments are disclosed. | 10-23-2008 |
20080267075 | SYSTEM FOR MONITORING OPERATIONS OF AN ENUM SYSTEM - A system for monitoring operations of a Telephone Number Mapping (ENUM) system is disclosed. A system that incorporates teachings of the present disclosure may include, for example, an ENUM system having a controller element to monitor queries received from one or more network elements, detect one or more faults in the queries submitted by at least one among the one or more network elements, and prevent the at least one of the one or more network elements from submitting subsequent queries to the ENUM system. Additional embodiments are disclosed. | 10-30-2008 |
Patent application number | Description | Published |
20080200143 | SYSTEMS AND METHODS FOR LOCATION MANAGEMENT AND EMERGENCY SUPPORT FOR A VOICE OVER INTERNET PROTOCOL DEVICE - Example systems and methods to manage location information for emergency services support of an internet protocol (“IP”) communication device are disclosed. A disclosed example method involves storing first and second geographic location information in a first list of geographic location information associated with an internet protocol device. The first list is stored at a service provider server. At least a partial copy of the first list is communicated from the service provider server to the internet protocol device for storing as a second list of geographic location information in the internet protocol device. | 08-21-2008 |
20080279362 | Methods and systems for protecting a telecommunication service - A client of a telephone number mapping (ENUM) server is used to protect the ENUM server from a Denial of Service (DoS) attack. The DoS attack may comprise a plurality of attempts to place exception calls from one or more end user devices that are unregistered. The one or more end user devices may originate from a service provider network. | 11-13-2008 |
20080281975 | METHODS AND APPARATUS TO ROUTE A COMMUNICATION SESSION IN AN INTERNET PROTOCOL (IP) MULTIMEDIA SUBSYSTEM (IMS) NETWORK - Methods and apparatus to route a communication session in an Internet Protocol (IP) Multimedia Subsystem (IMS) network are disclosed. An example method comprises determining at a tElephone NUMber mapping (ENUM) query server if a called destination associated with an ENUM query request message is subject to re-direction, and determining at the ENUM server a final destination for the called destination when the destination is subject to redirection, the final destination being different from the called destination. | 11-13-2008 |
20080285543 | METHODS AND APPARATUS TO MANAGE INTERNET PROTCOL (IP) MULTIMEDIA SUBSYSTEM (IMS) NETWORK CAPACITY - Methods and apparatus to manage Internet Protocol (IP) Multimedia Subsystem (IMS) network capacity are disclosed. An example method comprises identifying a terminating voice over Internet protocol (VoIP) call server associated with a called device, and returning a call rejection indicator when the terminating VoIP call server is in a first condition, the call rejection indicator returned without a call initiation request message sent to the terminating VoIP call server. | 11-20-2008 |
20090022298 | Methods and Apparatus for Load Balancing in Communication Networks - Methods and apparatus for load balancing in communication networks are disclosed. An example method to perform load balancing in a communication network disclosed herein comprises routing a registration request received for a user device in an Internet protocol multimedia subsystem network to a first call processor when the user device is registered with the first call processor and in an active call session with the first call processor, and querying a load balancer to determine whether to assign the user device to at least one of the first call processor or a second call processor when the user device is registered with the first call processor but not in any active call sessions with the first call processor. | 01-22-2009 |
20100027529 | METHODS AND APPARATUS TO CONTROL SYNCHRONIZATION IN VOICE OVER INTERNET PROTOCOL NETWORKS AFTER CATASTROPHES - Example methods and apparatus to control synchronization in voice over Internet protocol (VoIP) networks after catastrophes are disclosed. An example border element comprises a network interface to receive a VoIP network registration request message from a VoIP endpoint, a catastrophe detector to determine whether a catastrophe has been detected, a backoff time module to compute a backoff time using a priority assigned to the VoIP endpoint and an expected number of VoIP network registration request messages, a recovery module to determine whether the VoIP endpoint is currently registered with the VoIP network, and to send a response message having a header representing the backoff time to the VoIP endpoint when the catastrophe has been detected and the VoIP endpoint is not currently registered with a VoIP network, and a signaling processor to process the VoIP network registration request message when the VoIP endpoint is currently registered with the VoIP network. | 02-04-2010 |
20130051538 | METHODS AND APPARATUS TO PROVIDE MESSAGES TO TELEVISION USERS - Methods and apparatus to provide messages to television users are disclosed. An example method includes determining an identifier associated with a television device in response to detecting a request for a list of voicemail message information, querying a database to determine a voicemail mailbox associated with the identifier, initiating a terminal session in accordance with a remote desktop protocol for the television device, and sending the list of voicemail message information to the television device via the terminal session | 02-28-2013 |
20130091289 | METHODS AND APPARATUS FOR HANDLING A COMMUNICATION SESSION FOR AN UNREGISTERED INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM (IMS) DEVICE - Methods and apparatus for handling a communication session for an unregistered Internet Protocol Multimedia Subsystem (IMS) device are disclosed. An example method includes, in response to receiving an internet protocol multimedia subsystem session initiation message from a user endpoint, determining whether the user endpoint is registered; and, when the user endpoint is determined to be unregistered: determining whether the internet protocol multimedia subsystem session initiation message is directed to an exception endpoint by performing a lookup on a list; determining whether a profile for the unregistered user endpoint is available; when the profile for the user endpoint determined to be unregistered is unavailable, loading a default profile; and establishing an internet protocol multimedia subsystem session on behalf of the user endpoint determined to be unregistered when the internet protocol multimedia subsystem session initiation message is directed to the exception endpoint. | 04-11-2013 |
20130094362 | METHODS AND APPARATUS FOR LOAD BALANCING IN COMMUNICATION NETWORKS - Example methods disclosed herein include, in response to receiving a first message associated with a first registration request for a device, determining whether the device is currently assigned to a first call processor and performing a load balancing procedure to reassign the device to one of a plurality of call processors including the first call processor, the load balancing procedure to bias reassignment to the first call processor in response to the device being determined to be currently assigned to the first call processor. Such example methods further include, in response to receiving a second message associated with a second registration request for the device, causing the first call processor to de-register the device in response to determining that the second message is associated with a pending reassignment of the device from the first call processor to a second call processor included in the plurality of call processors. | 04-18-2013 |
20140146812 | METHOD AND APPARATUS FOR REGISTERING COMMUNICATION DEVICES IN A COMMUNICATION SYSTEM - A system that incorporates the subject disclosure may include, for example, a method for receiving and granting, by a first session border controller, registration requests from a plurality of communication devices, where the plurality of communication devices are assigned to a second session border controller as a primary source for communication services, and where the registration requests are received responsive to the second session border controller being unable to provide services to the plurality of communication devices. The method can further include receiving, by the first session border controller, a re-registration request from one of the plurality of communication devices, and transmitting, by the first session border controller, a message to the one of the plurality of communication devices responsive to receiving the re-registration request to cause the one of the plurality of communication device to register with the second session border controller. Other embodiments are disclosed. | 05-29-2014 |
Patent application number | Description | Published |
20090086652 | MODEL AND METHOD FOR COMPUTING PERFORMANCE BOUNDS IN MULTI-HOP WIRELESS NETWORKS - Disclosed is a general model and method for computing performance bounds in multi-hop wireless networks. Rather than focusing on computing asymptotic performance bounds under assumptions of homogeneity or randomness in the network topology and/or workload, the present invention accommodates any given network, technology, interference model, routing paradigm, and workload. Using a conflict graph to formally characterize the impact of wireless interference on the performance of multi-hop wireless networks, methods for computing upper and lower bounds on the capacity of a given wireless network are detailed. Besides computing network capacity, the model and method disclosed can also enable or benefit other applications including maximizing fairness and minimizing maximum link utilization. | 04-02-2009 |
20100296403 | Predictable Performance Optimization of Wireless Networks - Methods are described for optimizing wireless networks in a predictable way, i.e., the performance optimized is achievable in a real network. The methods consist of two main components: (i) a novel model that captures the relationship between network topology, wireless interference, traffic demand, and MAC-induced dependencies to accurately predict the throughput of individual flows in the wireless network, and (ii) a model-driven optimization that uses this model to optimize the network for a given performance objective. | 11-25-2010 |
20100302935 | METHOD AND SYSTEM FOR RESILIENT ROUTING RECONFIGURATION - A method and system for resilient routing reconfiguration, which provides provably congestion-free rerouting under a large number of failure scenarios and achieves efficiency and flexibility in accommodating different performance requirements, is disclosed. The method of embodiments comprises an offline precomputation phase and an online reconfiguration phase. Embodiments of the present invention also provide a number of useful functionalities, including (i) coping with traffic variations, (ii) supporting realistic failure scenarios, (iii) accommodating prioritized traffic with different protection levels, and (iv) balancing the trade-off between performance and resilience. | 12-02-2010 |
20100306290 | METHOD AND APPARATUS FOR SPATIO-TEMPORAL COMPRESSIVE SENSING - A method and apparatus for spatio-temporal compressive sensing, which allows accurate reconstruction of missing values in any digital information represented in matrix or tensor form, is disclosed. The method of embodiments comprises three main components: (i) a method for finding sparse, low-rank approximations of the data of interest that account for spatial and temporal properties of the data, (ii) a method for finding a refined approximation that better satisfies the measurement constraints while staying close to the low-rank approximations obtained by SRMF, and (iii) a method for combining global and local interpolation. The approach of embodiments also provides methods to perform common data analysis tasks, such as tomography, prediction, and anomaly detection, in a unified fashion. | 12-02-2010 |
20110164562 | Vehicular Content Distribution - A system and method provides an electronic content to a vehicle from access point(s) within a network using a controller. The controller divides the electronic content into one or more files wherein each file contains at least one packet, and generates two or more random linear combinations of the packets within each file. For each file, each random linear combination of the packets is replicated to a different access point within the network. The electronic content is provided to the vehicle using at least one of the different access points. The controller can also determine a set of nearest trajectories for the vehicle in a location database that match a recent location history for the vehicle. For each determined nearest trajectory, one or more mobility trajectories are determined for the vehicle, and a set of access points are determined that correspond to the determined mobility trajectories for the vehicle. | 07-07-2011 |
20120297405 | EFFICIENTLY DISTRIBUTING VIDEO CONTENT USING A COMBINATION OF A PEER-TO-PEER NETWORK AND A CONTENT DISTRIBUTION NETWORK - A method, system and computer program product for efficiently distributing video content. A peer-to-peer network and a content distribution network are used in combination to distribute video content. A content distribution network relies on servers distributed across the Internet to achieve high quality content delivery at a high cost. A peer-to-peer network distributes content among peers without incurring server side cost but may experience poor performance. The peer-to-peer network and the content distribution network are leveraged in a manner that achieves high content delivery and low cost by allowing the peer-to-peer network to serve as much content as possible while using the content distribution network to bootstrap the content in the peer-to-peer network and using it as a fallback whenever the peer-to-peer network has insufficient bandwidth, insufficient quality or when the missing piece of video content in the video buffer of the client device has an immediate deadline. | 11-22-2012 |
20130100818 | METHOD FOR DETERMINING PLACEMENT OF INTERNET TAPS IN WIRELESS NEIGHBORHOOD NETWORKS - Disclosed is a method for determining the placement of ITAPs in wireless neighborhood networks. The method disclosed provides for efficient integration of multi-hop wireless networks with the Internet by placing ITAPs at strategic locations. Initially the method provides for the formulation of the ITAP placement problem under three wireless models. For each model, methods are developed to efficiently place ITAPs in the networks. The methods aim to minimize the number of required ITAPs while guaranteeing users' bandwidth requirements. Next, a fault tolerance version of the placement method is presented that provides bandwidth guarantees in the presence of failures. Finally the methods are extended to take into account variable traffic demands by developing an approximation algorithm to simultaneously optimize ITAP placement based on demands over multiple periods. | 04-25-2013 |
20130120523 | EFFICIENTLY DISTRIBUTING VIDEO CONTENT USING A COMBINATION OF A PEER-TO-PEER NETWORK AND A CONTENT DISTRIBUTION NETWORK - A method, system and computer program product for reducing network delay in video conferencing using random tree pushing. A plurality of nodes is randomly selected as next hop forwarders for a piece of content by a source who generates a video stream. Additional next hop forwarders are added to the randomly selected plurality of nodes to form a set of next hop forwarders until a total upload bandwidth of all next hop forwarders is no less than a bandwidth required to deliver the video stream to a set of receivers. The set of receivers in a video session is partitioned and each of the set of receivers is assigned to one of the set of next hop forwarders for forwarding the video stream to an assigned receiver either directly or through a multi-hop path. | 05-16-2013 |
20130127981 | EFFICIENTLY DISTRIBUTING VIDEO CONTENT USING A COMBINATION OF A PEER-TO-PEER NETWORK AND A CONTENT DISTRIBUTION NETWORK - A method, system and computer program product for efficiently distributing video content. A peer-to-peer network and a content distribution network are used in combination to distribute video content. A content distribution network relies on servers distributed across the Internet to achieve high quality content delivery at a high cost. A peer-to-peer network distributes content among peers without incurring server side cost but may experience poor performance. The peer-to-peer network and the content distribution network are leveraged in a manner that achieves high content delivery and low cost by allowing the peer-to-peer network to serve as much content as possible while using the content distribution network to bootstrap the content in the peer-to-peer network and using it as a fallback whenever the peer-to-peer network has insufficient bandwidth, insufficient quality or when the missing piece of video content in the video buffer of the client device has an immediate deadline. | 05-23-2013 |
20130127982 | EFFICIENTLY DISTRIBUTING VIDEO CONTENT USING A COMBINATION OF A PEER-TO-PEER NETWORK AND A CONTENT DISTRIBUTION NETWORK - A method, system and computer program product for efficiently distributing video content. A peer-to-peer network and a content distribution network are used in combination to distribute video content. A content distribution network relies on servers distributed across the Internet to achieve high quality content delivery at a high cost. A peer-to-peer network distributes content among peers without incurring server side cost but may experience poor performance. The peer-to-peer network and the content distribution network are leveraged in a manner that achieves high content delivery and low cost by allowing the peer-to-peer network to serve as much content as possible while using the content distribution network to bootstrap the content in the peer-to-peer network and using it as a fallback whenever the peer-to-peer network has insufficient bandwidth, insufficient quality or when the missing piece of video content in the video buffer of the client device has an immediate deadline. | 05-23-2013 |