Abstract: Dual frequency control of first and second pairs of switches of a buck-boost regulator with pass through band is disclosed. In buck and boost modes respectively a first pair of the switches is operated at high frequency and a second pair of the switches is operated at low frequency. In pass through mode, both pairs of switches are operated at low frequency. Dual frequency control and operation of the pairs of switches enables current sharing between positive and negative power leads in buck, boost and pass-through modes.

Abstract: A system and method for device-to-device (D2D) communication is disclosed. A preferred embodiment comprises a frequency synthesizer configured to provide a first carrier frequency and a second carrier frequency, an up-converter coupled to the frequency synthesizer and configured to up-convert a first baseband signal into a cellular uplink signal when receiving the first carrier frequency from the frequency synthesizer, and configured to up-convert the first baseband signal into a first device-to-device signal when receiving the second carrier frequency from the frequency synthesizer, and a down-converter coupled to the frequency synthesizer and configured to down-convert a second device-to-device signal into a second baseband signal when receiving the first carrier frequency from the frequency synthesizer, and configured to down-convert a cellular downlink signal into the second baseband signal when receiving the second carrier frequency from the frequency synthesizer.

Abstract: A method for performing a video conference in a mobile phone is provided. The video conference involves a plurality of conferencing devices that display presentation content and a video image of one or more participants in the video conference. The mobile phone receives a first and second real-time transport protocol (RTP) packets including a video image of a participant and presentation content in the video conference, respectively. The video image of the participant includes a face portion of the participant and a background portion. The mobile phone decodes the video image of the participant and the presentation content, extracts the face portion of the participant from the video image of the participant, overlays the face portion of the participant over a portion of the presentation content to form a composite image, and displays the composite image on a display device of the mobile phone.

Abstract: A system and method for channel information feedback in a wireless communications system is provided. A method for communications device operation includes receiving a pilot transmitted by a controller, computing a channel estimate for a channel between the controller and a communications device, the computing based on the pilot, computing a channel correlation matrix for the channel based on the channel estimate, and transmitting a reduced rank representation of the channel correlation matrix to the controller as a first feedback information. The method also includes adapting a first codebook based on the reduced rank representation of the channel correlation matrix, computing a representation of the channel using the adapted codebook, transmitting the representation of the channel as a second feedback information, and receiving a transmission beamformed based on the first feedback information and the second feedback information.

Abstract: An inverter comprises a first switch coupled to an input of an output filter and a positive dc bus, a second switch coupled to the input of the output filter and a negative dc bus, a transformer coupled to a common node of the first switch and the second switch, a first freewheeling apparatus and a first soft switching switch connected in series, wherein the first soft switching switch is configured such that the first switch is of a first zero voltage transition during a turn-on process of the first switch and a second freewheeling apparatus and a second soft switching switch connected in series, wherein the second soft switching switch is configured such that the second switch is of a second zero voltage transition during a turn-on process of the second switch.

Abstract: Embodiments are provided herein for creating virtual networks with service chains, such as n-tier networks, in the cloud. In an embodiment, a network diagram for a virtual network is received from a user via a graphical user interface. The network diagram comprises elements that represent virtual or physical network components. The network components include switches, routers, firewalls, links, service appliances, virtual machines, servers, or other network components. Upon successfully validating the network diagram, via a validation step, the network diagram is compiled into application programming interface (API) calls ready for execution. The executed APIs are used to establish the virtual network on a physical network infrastructure. The virtual network comprises virtual network components corresponding to the elements or the network diagram.

Abstract: Disclosed herein is a mechanism for discovering SDN specific topology information in a SDN interconnection network. SDN specific topology information may comprise SDN IDs, SDN member router ID lists, and SDN address lists. A SDNC associated with a local SDN domain in the SDN interconnection network may determine a set of routers and/or links in the local SDN domain for link advertisement and may associate the set of routers with the local SDN domain. The SDNC may further determine a set of border routers in the local SDN domain for broadcasting the link advertisements and SDN specific topology information to other interconnected SDN domains. The SDNC may receive link advertisement and SDN specific topology information from other interconnected SDN domains and may compute a best path through each router and/or link across the SDN domains.

Abstract: A device comprises a receiver configured to receive a join-lookup remote procedural call (RPC) for a file, wherein the join-lookup RPC requests a join operation of sub-files associated with the file, and a transmitter configured to transmit the file in response to the Join-Lookup RPC. A distributed file system (DFS) client comprises a transmitter configured to transmit a join-lookup RPC for a file, wherein the join-lookup RPC requests a join operation of sub-files associated with the file, and a receiver configured to receive the file in response to the Join-Lookup RPC. A method comprises receiving a join-lookup RPC for a file, wherein the join-lookup RPC requests a join operation of sub-files associated with the file, and transmitting the file in response to the Join-Lookup RPC.

Abstract: A method implemented by an edge node in an optical network, the method comprising receiving one or more information centric networking (ICN) service flows, each of which is identifiable by a service label, determining at least one optical resource to be provisioned to the one or more service flows based on the one or more service labels, converting the one or more ICN service flows to one or more optical flows, and transmitting the one or more optical flows using the at least one optical resource.

Abstract: Included is a mobile node (MN) comprising a first antenna configured to communicate with a wireless network, a second antenna configured to communicate with a wireless network, a first data line coupled to the first antenna, a second data line coupled to the second antenna, and a common ground trace coupled to the first data line and the second data line, wherein the first antenna and the second antenna are not directly connected to the common ground.

Abstract: In one embodiment, a method for delay scheduling includes determining whether a communications controller has information for a machine type communication (MTC) device and determining a first subframe to transmit a downlink control information (DCI) message on when the communications controller has information for the MTC device. The method also includes transmitting, by the communications controller to the MTC device, the first subframe including the DCI message and the information in accordance with the first subframe.

Abstract: An apparatus comprising a processor configured to startup a new process on a peer processor to off-load a load of a local process on the processor in a dynamic manner based on monitoring an amount of resources used by the processor, wherein the startup of the new process on the peer processor is initiated when the amount of resources used by the local process reaches a threshold.

Abstract: An apparatus comprising a proxy configured to couple to a sender and a receiver and to receive data from the sender at a first rate and forward the data to the receiver at a second rate that is less than the first rate. A method comprising detecting a reception speed for each of a plurality of receivers in a multicast group, assigning the receivers to a first group and a second group based on the reception speed of each of the receivers, wherein the first group has a reception speed that is faster than a reception speed of the second group, and sending multicast data intended for all of the receivers to the receivers in the first group and to a proxy at a first rate, wherein the proxy buffers the multicast data and sends the multicast data to the receivers in the second group at a second rate.

Abstract: In a source provider edge (PE) router, a method for supporting protocol independent multicast sparse-mode (PIM-SM) using multicast resource reservation protocol-traffic engineering (mRSVP-TE) comprising the steps of creating a protocol independent multicast (PIM) state, sending a first unicast data message to a rendezvous point (RP) PE router using the PIM state, wherein the first unicast data message is a PIM register message encapsulated as a unicast multiprotocol label switching (MPLS) packet, receiving a PIM join message from the RP PE router, wherein the PIM join message triggers creating a second PIM state, sending a second unicast data message to the RP PE router via a default multicast distribution tree (MDT) using the second PIM state, receiving a PIM register-stop message from the RP PE router, wherein the PIM register-stop message suspends sending the second unicast data message.

Abstract: A network element comprising a phase matched or phase controlled interconnect configured to receive a data signal sample, a Raman equalization transmitter, and a Raman crosstalk equalization conditioning circuit configured to generate a Raman mitigation signal using the data signal sample to be transmitted by the Raman equalization transmitter. Included is a method comprising multiplexing incoherent data signals with a video signal and a Raman mitigation signal to be co-propagated on a single optical fiber, wherein the Raman mitigation signal is selected to destructively interfere with Raman crosstalk noise induced on the video signal. Also included is a system comprising a video signal component configured to transmit a video signal, data stream signal components configured to transmit a data stream signals, a Raman crosstalk equalization system configured to transmit a Raman mitigation signal, and an optical multiplexer configured to multiplex the signals for co-propagation onto a single transmission fiber.

Abstract: An apparatus comprising a processor configured to send a first notification message to a first label switch router (LSR) to discover the upstream multipoint Label Distribution Protocol (mLDP) LSR, wherein the apparatus is configured to couple to the first LSR, and wherein the first LSR is not an mLDP LSR, receive a second notification message from the upstream mLDP node, and in response to receiving the second notification message, establish an mLDP Label Switch Path (LSP) to the upstream mLDP node via the first LSR.

Abstract: System and method embodiments are provided herein to enable VTL backup and retrieval over S3 storage technology. An embodiment method includes mapping a plurality of data blocks for VTL storage into a plurality of S3 objects for S3 storage, and storing the S3 objects at one or more locations for S3 storage over one or more networks, wherein the mapping enables stateless backup and restore of the data blocks. An embodiment network component includes a Small Computer System Interface configured to receive a plurality of data blocks form one or more servers, a data library storage including tape storage, disk storage, or both that is configured to store the data blocks, a blocks-to-objects mapping engine configured to map the data blocks into a plurality of S3 objects, and a S3 interface configured to transfer the S3 objects to one or more locations for S3 storage over one or more networks.

Abstract: A method for communicating between a plurality of Software-Service-Defined-Networks (SSDNs) comprising transmitting a data packet from a Network Element (NE) in a first SSDN domain to a component in a second SSDN domain by using an Extensible Messaging and Presence Protocol (XMPP), wherein the data packet comprises a destination address indicating an address of a XMPP server in the second domain. Also disclosed is a method of federating a plurality of SSDN domains implemented in a first XMPP server comprising receiving a login message from a first component positioned in a first SSDN domain, and in response to receiving the login message, advertising the first SSDN component to a second XMPP server positioned in a second SSDN domain via a first XMPP message.

Abstract: Embodiments are provided for isolating Input/Output (I/O) execution by combining compiler and Operating System (OS) techniques. The embodiments include dedicating selected cores, in multicore or many-core processors, as I/O execution cores, and applying compiler-based analysis to classify I/O regions of program source codes so that the OS can schedule such regions onto the designated I/O cores. During the compilation of a program source code, each I/O operation region of the program source code is identified. During the execution of the compiled program source code, each I/O operation region is scheduled for execution on a preselected I/O core. The other regions of the compiled program source code are scheduled for execution on other cores.

Abstract: A dual vertical beam cellular array is disclosed herein. In one embodiment, a cellular array includes discrete radiators coupled in pairs and arranged in-line. The radiators are connected to hybrid couplers configured to sum the output from the pairs of discrete radiators. A first power distribution network is configured to receive a first output from the hybrid couplers and produce a first beam, and a second power distribution network configured to receive a second output from the hybrid couplers and produce a second beam. According to some embodiments, the first beam is a main beam with high gain and the second beam is a coverage beam with a large coverage area.