Patents Assigned to Alcatel Lucent
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Patent number: 8510558Abstract: A key agreement protocol between a first party and a second party comprises the following steps from the first party perspective. An encrypted first random key component is sent to the second party, the first random key component being encrypted using a public key of the second party in accordance with an identity based encryption operation. An encrypted random key component pair is received from the second party, the random key component pair being formed from the first random key component and a second random key component computed at the second party, and encrypted at the second party using a public key of the first party in accordance with the identity based encryption operation. The second random key component, in encrypted form, is sent to the second party, the second random key component being encrypted using the public key of the second party.Type: GrantFiled: February 17, 2009Date of Patent: August 13, 2013Assignee: Alcatel LucentInventor: Ganapathy S. Sundaram
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Patent number: 8509232Abstract: A capability is provided for supporting fault-resilient propagation of traffic in networks using redundant multicast trees (RMTs). Fault-resilient propagation of traffic from a first node to a second node is supported using one or both of a pair of RMTs rooted at the first node and a pair of RMTs rooted at the second node. The pair of RMTs rooted at the first node includes a pair of node-disjoint paths from the first node to the second node. The pair of RMTs rooted at the second node includes a pair of node-disjoint paths from the second node to the first node. The first node propagates multicast traffic toward the second node using at least one of the RMTs in the pair of RMTs rooted at the first node. The first node propagates unicast traffic toward the second node using at least one of: at least one of the RMTs in the pair of RMTs rooted at the first node, or at least one of the RMTs in the pair of RMTs rooted at the second node.Type: GrantFiled: April 20, 2009Date of Patent: August 13, 2013Assignee: Alcatel LucentInventors: Yigal Bejerano, Pramod V. Koppol
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Patent number: 8509224Abstract: Systems and methods are provided for forwarding cellular signaling across a packet-switched network. The system generates signaling according to a cellular protocol for a mobile device and exchanges the cellular signaling with a base station of a home mobile network of the mobile device. The system further detects a triggering condition, encapsulates the cellular signaling in a packet wrapper, and forwards the encapsulated signaling to a virtual base station for the home network via a packet-switched network.Type: GrantFiled: April 6, 2011Date of Patent: August 13, 2013Assignee: Alcatel LucentInventor: Michael Castleberry
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Patent number: 8510414Abstract: A method of managing a call managed at any given time by a call controller, which method includes steps of: choosing an initial call controller managing said call, measuring the satisfaction of criteria during the call, deciding as a function of said measurement to change the call controller managing said call, and in the event of a decision to change, transmitting information relating to the call to the chosen call controller.Type: GrantFiled: October 4, 2001Date of Patent: August 13, 2013Assignee: Alcatel LucentInventors: Olivier Marce, Laurent Philippe Anquetil
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Patent number: 8509221Abstract: An optimized gateway selection process of the present invention is based on a universal mobility manager (UMM), a component for inter-technology location management. The UMM is capable of holding location information for diverse cellular networks, as well as for Internet telephony systems. For cellular networks, UMM acts as a traditional HLR; for an Internet telephony network, it acts as the entities that are responsible for user/terminal registration (registrar in SIP, gatekeeper in H.323) and address resolution (proxy server in SIP, gatekeeper in H.323). An optimal gateway selection is possible based on location related information provided by the UMM which had not previously been available. Utilizing the newly available information enables a gateway to be selected which may, for example, enable the circuit switched portion of a call to now be minimized.Type: GrantFiled: December 15, 2009Date of Patent: August 13, 2013Assignee: Alcatel LucentInventors: Parag M. Doshi, Oliver Haase, Jonathan Michael Lennox, Kazutaka Murakami, Ming Xiong
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Patent number: 8509153Abstract: In view of the technical problems that exist during implementing IP address anti-spoofing in an access node device in an IPv6 access network, the present invention proposes a packet forwarding method and apparatus in an IPv6 Access Node, for forwarding a packet from a Residential Gateway. In the method, the access node device first receives a packet from the Residential Gateway, then obtains a network prefix in a source UPv6 address of the packet, judges whether the network prefix in the source IPv6 address of the packet is a valid network prefix of a CPN corresponding to the Residential Gateway, and if yes, forwards the packet finally. Particularly, in the present invention the access node device can automatically obtain valid network prefix using technical means such as snooping a network prefix allocation reply message. Therefore, the present invention greatly increases operation efficiency and security of the IPv6 access network and simplifies network management of the IPv6 access network.Type: GrantFiled: August 26, 2008Date of Patent: August 13, 2013Assignee: Alcatel LucentInventors: Haibo Wen, Gang Liu
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Patent number: 8510787Abstract: An access node (e.g., DSLAM) is described herein which can limit bandwidth usage in a transport network by incorporating an enhanced rapid TV channel changing functionality/enhanced BTV server in which TV channels from a multicast TV stream are dynamically selected based on past TV channel clicking statistics and then stored therein so there is a good chance that it can respond to a TV channel change request from a STB.Type: GrantFiled: December 19, 2005Date of Patent: August 13, 2013Assignee: Alcatel LucentInventors: Anshul Agrawal, Bill Krogfoss, Lev Sofman
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Patent number: 8510148Abstract: Systems and techniques for entry and presentation of project planning information, showing activities in their geographic context. Information relating to activities and groupings of activities is entered, updated and presented. Information associated with one or more groupings of activities is associated with a graphical icon, with the appearance of the icon changing in response to changes in the associated information. The icon is placed in a graphical display, with the graphical display showing geographic information, such as a map, and the icon being placed in a map location showing the location of the activities associated with the icon. The graphical display maintains links to the information associated with the icon so that updating the information changes the appearance of the icon, calling attention to changes in their geographic context.Type: GrantFiled: March 1, 2005Date of Patent: August 13, 2013Assignee: Alcatel LucentInventor: Timothy Andrew Norman
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Publication number: 20130201908Abstract: A method and apparatus for communication between a wireless base station and a population of one or more terminals are provided, involving, in each of a plurality of iterations, transmitting a block of forward-link data from an array of multiple base station antennas to the terminal population. In each iteration, a forward-link power level is updated for each said terminal using a distributed algorithm and purely local information. Meanwhile, a set of beamforming coefficients based on channel state information (CSI) obtained from reverse-link pilot signals is periodically updated, and each data block is precoded with the most recently updated beamforming coefficients. Each data block is transmitted at the most recently updated forward-link power levels.Type: ApplicationFiled: February 22, 2012Publication date: August 8, 2013Applicant: Alcatel-Lucent USA Inc.Inventors: Alexei Ashikhmin, Thomas L. Marzetta
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Publication number: 20130201297Abstract: Systems, structures, devices and methods for lensless compressive image acquisition are disclosed herein with which images may be obtained from a single detection element while performing fewer times than a number of pixels associated with the image. Advantageously such systems, structures, devices and methods may be adapted to acquiring images at wavelengths that are difficult or impossible with contemporary CCD or CMOS imagers.Type: ApplicationFiled: February 7, 2012Publication date: August 8, 2013Applicant: ALCATEL-LUCENT USA INC.Inventors: Hong JIANG, Gang HUANG, Kim MATTHEWS, Paul WILFORD
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Publication number: 20130201947Abstract: A method of evaluating transmission power for transmission of a message between a first network node and a second network node in a multicarrier wireless communications system in which a predetermined set of a plurality of carriers are utilised to support communication between said first network node and said second network node, said predetermined set of said plurality of carriers comprising a primary carrier and at least one secondary carrier. The method comprises the steps of: determining an initial indication of appropriate power setting to enable a message to be transmitted between said first and second network nodes on said primary carrier; determining that there is a message to be sent between said first and second network node at a transmission time after receipt of said initial indication; and evaluating, based on said initial indication, an appropriate power setting to enable a message to be transmitted between said first and second network nodes on said primary carrier at said transmission time.Type: ApplicationFiled: August 2, 2011Publication date: August 8, 2013Applicant: ALCATEL LUCENTInventor: Shin Horng Wong
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Publication number: 20130203372Abstract: The invention relates to a method of operating a base station (110) of a cellular communications network (100), wherein said base station (110) is configured to receive signaling information (si1, si2) from at least one terminal (10a) served by said base station (110) and/or from a further network element (120) of said cellular communications network (100), wherein said base station (110) determines (200) whether received signaling information (si1, si2) comprises an emergency indication which indicates an existing or impending emergency situation, and wherein said base station (110) notifies (210) at least one further terminal (10b, 10c) served by said base station (110) and/or a further network element (130) of said emergency situation.Type: ApplicationFiled: September 8, 2011Publication date: August 8, 2013Applicant: ALCATEL LUCENTInventors: Rolf Sigle, Uwe Doetsch
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Publication number: 20130202316Abstract: An optoelectronic device includes a photodetection means arranged for converting first and second complementary optical signals into first and second complementary currents, and a processing means arranged for processing these first and second complementary currents to output at least a first output voltage. This processing means includes i) a conversion means arranged for separately converting the first and second complementary currents into first and second operating voltages, ii) a balancing means arranged for balancing phase and amplitude of the first and second operating voltages, and iii) a differential amplification means arranged for applying a subtraction function to the first and second operating voltages with balanced phase and amplitude to produce at least the first output voltage, which is proportional to the difference between the first and second operating voltages with balanced phase and amplitude.Type: ApplicationFiled: July 12, 2011Publication date: August 8, 2013Applicant: ALCATEL-LUCENTInventors: Jean-Yves Dupuy, Filipe Jorge, Agnieszka Konczykowska
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Publication number: 20130205354Abstract: The present invention relates to communication networks and, more particularly, to information playback in communication networks. System and method for enabling Video Cassette Recording controls while information is being played to a user. A Media Gateway Controller indicates to a Media Server that the user could exercise Video Cassette Recording controls on the information while the information is being played to the user. The Media Server plays the information to the user and receives a Video Cassette Recording control command entered by the user. The Media Server performs an action on the information according to the Video Cassette Recording control command. The user is an Intelligent Network Application Part (INAP)/Customized Applications for Mobile networks Enhanced Logic (CAMEL) user.Type: ApplicationFiled: September 7, 2010Publication date: August 8, 2013Applicant: ALCATEL LUCENTInventors: Jayakumar Balaji, Balasubramanian Gopalasubramanian, Ramachandran Gopannan
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Publication number: 20130204949Abstract: A method for launching a contextualized on-the-fly conference between at least two users connected to a unified communications client and whose respective email addresses are included in an email, which method includes the following steps: extracting the email addresses comprised within the email's header; extracting a context from the email; formatting a contextualized on-the-fly conference request with the help of the extracted email addresses and context; transmitting the formatted request to a conference server; opening, for each user, an instant messaging session via the unified communications client; loading the extracted context in the open instant messaging session.Type: ApplicationFiled: March 16, 2011Publication date: August 8, 2013Applicant: ALCATEL LUCENTInventors: Jerome Elleouet, Frederic Priam
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Publication number: 20130203434Abstract: The invention relates to a method comprising the following steps:—measuring (S1) a traffic load;—determining (S2), if the traffic load is lower than a first threshold;—decreasing (S3) a maximum used output load of an amplifier of the base station, if the traffic load is lower than the first;—adjusting (S4) an operation point (102; 104; 106; 108; 112; 114; 116; 118; 124) of the amplifier, if the traffic load is lower than the first threshold;—determining (S2), if the traffic load is higher than a second threshold;—increasing (S5) the maximum used output load of the amplifier, if the traffic load is higher than the second threshold; and—adjusting (S4) the operation point of the amplifier, if the traffic load is higher than the second threshold.Type: ApplicationFiled: August 22, 2011Publication date: August 8, 2013Applicant: ALCATEL LUCENTInventors: Oliver Blume, Dietrich Zeller, Anton Ambrosy
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Patent number: 8503401Abstract: A method and user equipment for performing a handover between a MBSFN and non-MBSFN areas in a communication network is provided. The communication network comprises a first cell constituting a MBSFN area, a second cell constituting the non-MBSFN area, and a reserved cell between the first and second cells and subordinate to the MBSFN area. Reserved cell indication information being broadcast in the reserved cell. The method including: receiving the reserved cell indication information to learn that a user equipment is located in the reserved cell; measuring in the reserved cell, for a preset service, a first signal strength based on MBMS transmission and a second signal strength based on a single-cell transmission; and selecting the first or second cells as a target cell during a period in which a difference between the first and second signal strengths is lower than a preset threshold.Type: GrantFiled: July 21, 2008Date of Patent: August 6, 2013Assignee: Alcatel LucentInventor: Yonggang Wang
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Patent number: 8504635Abstract: A system comprising a first network element, a second network element and a communication device. The first network element is communicatively coupled to the second network element and the communication device. The communication device sends multimedia session information to the first network element. The first network element analyzes the multimedia session information for urgent emergency circumstances. The first network element forwards the multimedia session information to a destination on the second network element if urgent emergency circumstances are found in the multimedia session information.Type: GrantFiled: April 28, 2008Date of Patent: August 6, 2013Assignee: Alcatel LucentInventors: David S. Benco, Michael J. Hawley, Anne Y. Lee
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Patent number: 8503845Abstract: An apparatus includes an optical fiber having a plurality of optical cores therein. Each optical core is located lateral in the optical fiber to the remaining one or more optical cores and is able to support a number of propagating optical modes at telecommunications wavelengths. Each number is less than seventy.Type: GrantFiled: March 31, 2011Date of Patent: August 6, 2013Assignee: Alcatel LucentInventors: Peter J. Winzer, Christopher Richard Doerr
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Patent number: 8503653Abstract: A method and apparatus for performing active speaker selection in teleconferencing applications illustratively comprises a microphone array module, a speaker recognition system, a user interface, and a speech signal selection module. The microphone array module separates the speech signal from each active speaker from those of other active speakers, providing a plurality of individual speaker's speech signals. The speaker recognition system identifies each currently active speaker using conventional speaker recognition/identification techniques. These identities are then transmitted to a remote teleconferencing location for display to remote participants via a user interface.Type: GrantFiled: March 3, 2008Date of Patent: August 6, 2013Assignee: Alcatel LucentInventors: Sudhir Raman Ahuja, Jingdong Chen, Yiteng Arden Huang, Dong Liu, Qiru Zhou