Patents Assigned to FutureWei Technologies
  • Publication number: 20150131329
    Abstract: An apparatus comprises a bridge coupled between a bias voltage and ground, wherein the bridge comprises a first switch and a second switch connected in series and coupled between the bias voltage and ground and a third switch and a fourth switch connected in series and coupled between the bias voltage and ground, a resonant device coupled to the bridge, wherein the resonant device comprises a fixed capacitance, a gate capacitance and a magnetizing inductance, a transformer coupled to the resonant device, wherein the transformer comprises a primary winding and a plurality of secondary windings.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Daoshen Chen, Heping Dai, Xujun Liu, Liming Ye, Dianbo Fu
  • Publication number: 20150131942
    Abstract: A grating coupler comprising a semiconductor substrate, a one-dimensional (1D) grating element coupled to the semiconductor substrate, wherein the 1D grating element is adapted to simultaneously couple a first polarization component of an incident optical beam with a transverse electric (TE) waveguide mode in a first propagation direction and a second polarization component of the incident optical beam with a transverse magnetic (TM) waveguide mode in a second propagation direction, and wherein the first propagation direction is opposite of the second propagation direction.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Qianfan Xu, Xiao Shen
  • Publication number: 20150132007
    Abstract: An optical transceiver comprising an optical signal input, a first modulation section coupled to the optical signal input, a second modulation segment coupled to the optical signal input and positioned in serial with the first modulation section, wherein the first modulation section comprises a first digital electrical signal input, a first digital driver coupled to the first digital electrical signal input, and a first modulator coupled to the first digital driver, and wherein the second modulation section comprises a second digital electrical signal input, a second digital driver coupled to the second digital electrical signal input, and a second modulator coupled to the second digital driver, and an optical signal output coupled to the first modulation section and the second modulation section.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Xueyan Zheng, Dawei Zheng, Xiao Shen, Morgan Chen, Hongbing Lei
  • Publication number: 20150131675
    Abstract: In a central controller, a method for managing resources comprising sending a request to a node in a domain controlled by the central controller, wherein the request requests at least a portion of a resource of the node, receiving a response from the node, wherein the response contains information on the availability of the portion of the resource, and storing the information on the availability of the portion of the resource for use in establishing a multiprotocol label switching (MPLS) label switched path (LSP).
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Huaimo Chen, Renwei Li
  • Publication number: 20150133159
    Abstract: Embodiments are provided for calibration, preprocessing, and segmentation for user localization and network traffic density estimation. The embodiments include sending, from a network component, a request to a plurality of user equipment (UEs) to participate in reporting localization data. Reports for localization data including no-lock reports are received from at least some of the UEs. The no-lock reports indicate indoor UEs among the UEs. The network preprocesses the localization data by eliminating, from the localization data, data that increases the total noise to signal ratio. The localization data is then processed using a model that distinguishes between different buildings. This includes associating, according to a radio map, radio characteristics in the localization data with corresponding bins in a non-uniform grid of coverage. The non-uniform grid is predetermined to maximize uniqueness between the radio characteristics.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Mark Newbury, Lyad Alfalujah, Suman Das, Kamalaharan Dushyanthan
  • Patent number: 9031599
    Abstract: A method of operating base station includes determining a first transmit power of a user equipment (UE), which includes determining a serving base station receive power, determining a path loss of the UE to the base station, determining a downlink signal to noise and interference ratio (SNIR) at the UE, and forming the first UE transmit power. Forming the first UE transmit power comprises summing the serving base station receive power, the path loss of the UE to the base station and the downlink SNIR. The method further includes instructing the UE to transmit at the first UE transmit power.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Gamini Senarath, Israfil Bahceci, Peiying Zhu, Aaron Callard
  • Patent number: 9030926
    Abstract: Disclosed is an apparatus comprising a first network node configured to transmit a first message to a second network node, wherein the first message comprises data designating the first network node as a member of a first multicast channel, and wherein the first message comprises data indicating a network address a third network node that is designated as a last hop router (LHR) of the first multicast channel. Also disclosed is a method comprising sending, by a first network node, a protocol independent multicast (PIM) join message, wherein the PIM join message comprises the network address of a PIM channel last hop router (LHR).
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Lin Han, Renwei Li
  • Patent number: 9031591
    Abstract: An embodiment method for operating a controller of a communications system includes determining inter-cell interference coordination (ICIC) information for the communications system, automatically adjusting, by the controller without end-user input, ICIC parameters according to the ICIC information to improve an overall performance level of the communications system, and transmitting the ICIC operation parameters to network entities in the communications system.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jianglei Ma, Mohammadhadi Baligh
  • Patent number: 9031032
    Abstract: A system and method for inter-cell interference coordination is provided. A method for controller operation includes receiving interferer information from a device served by the controller, scheduling a cell edge device based on the received interferer information, and reporting usage information of the subset of resources to neighboring controllers. The cell edge device operates in a periphery of a coverage area of the controller, and the cell edge device is scheduled to a subset of resources. The method also includes from each neighboring controller, receiving neighboring usage information of a neighboring subset of resources reserved for cell edge devices served by the neighboring controller. The method further includes scheduling a cell center device based on the received usage information from the neighboring controllers, and transmitting to scheduled devices over their respective scheduled resources. Cell center device is scheduled to resources not in the subset of resources.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Weimin Xiao, Oghenekome Oteri, Cornelius van Rensburg
  • Patent number: 9032209
    Abstract: A network component comprising at least one processor coupled to a memory and configured to exchange security information using a plurality of attributes in a management entity (ME) in an optical network unit (ONU) via an ONU management control interface (OMCI) channel, wherein the attributes provide security features for the ONU and an optical line terminal (OLT). Also included is an apparatus comprising an ONU configured to couple to an OLT and comprising an OMCI ME, wherein the OMCI ME comprises a plurality of attributes that support a plurality of security features for transmissions between the ONU and the OLT, and wherein the attributes are communicated via an OMCI channel between the ONU and the OLT and provide the security features for the ONU and the OLT.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventor: Frank Effenberger
  • Patent number: 9030947
    Abstract: A method implemented in a network component for an in-service software upgrade (ISSU), the method comprising selecting a forwarding core (FC) for upgrade from a plurality of FCs that run at a data plane on a printed circuit board of the network component to process and forward a plurality of packets, and resetting the selected FC with a software upgrade, wherein at least one of the other FCs continues processing and forwarding packets when the selected FC is upgraded.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 12, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventor: Jun Xu
  • Publication number: 20150124487
    Abstract: An apparatus comprises a first series resonant inductor coupled to a switching network and a transformer, a first series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor coupled to the switching network through the first series resonant inductor and the first series resonant capacitor, a resonant frequency adjusting device coupled to the switching network and the transformer and a switch connected in series with the resonant frequency adjusting device.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Dianbo Fu, Heping Dai, Liming Ye, Daoshen Chen
  • Publication number: 20150123177
    Abstract: A metal-oxide-semiconductor (MOS) type semiconductor device, comprising a silicon substrate, a first cathode electrode and a second cathode electrode coupled to the silicon substrate and located on distal ends of the silicon substrate, a poly-silicon (Poly-Si) gate proximally located above the silicon substrate and between the first cathode electrode and the second cathode electrode, wherein the Poly-Si gate comprises a first post extending orthogonally relative to the silicon substrate comprising a first doped silicon slab, a second post extending orthogonally relative to the silicon substrate comprising a second doped silicon slab, wherein the second post is positioned so as to create a width between the first post and the second post, an anode electrode coupled to the first post and the second post and extending laterally from the first post to the second post, and a dielectric layer disposed between the first silicon substrate and the second silicon substrate.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Qianfan Xu, Xiao Shen, Hongmin Chen
  • Publication number: 20150125160
    Abstract: Methods and apparatus for directly detected optical system based on gapped CAP modulation and DSP Methods for generation and reconstruction of gapped CAP signal are disclosed. An apparatus for direct detection transmission for CAP modulated signal with two unbalanced optical sidebands separated by gaps is disclosed, in which a gapped CAP signal is generated, converted, and passed to an optical filter for unbalanced sidebands generation and wavelength locking before being transmitted over an optical link. Direct detection is performed on the optical signal and passed to gapped matching filters. Channel equalization is performed and the signal information is decoded to binary data.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Yangjing WEN, Xiao SHEN, Yusheng BAI
  • Publication number: 20150124625
    Abstract: System and method of ad hoc on-demand routing by virtue of central control. A central controller of a network can communicate directly with a route-requesting network device regarding discovery of a data transmission path and perform route computation. A source network device may query the central controller with a unicast route request. In response, the central controller can identify a feasible route based on the topology information of the network. The central controller may also receive a broadcast route request as long with other network nodes. As a result, the source device can be offered to select from two resultant routes, one provided by the central controller in a centralized manner and the other provided by the destination device. Further, the central controller can be used specifically for computation of constrained routes by incorporating global constraints. The central controller may be a software defined network (SDN) controller.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Sam K. ALDRIN, Charles PERKINS
  • Publication number: 20150124894
    Abstract: A method for providing channel feedback includes receiving a signal from a transmission point (TP), estimating channel parameters from the signal as received, mapping the estimated channel parameters to a trellis in accordance with a Trellis Coded Quantization (TCQ) scheme, and applying a Viterbi algorithm (VA) to the trellis to generate quantized channel parameters, the quantized channel parameters including a plurality of samples.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Junghoon Suh, Jiayin Zhang
  • Publication number: 20150124488
    Abstract: A method comprises providing a resonant converter comprising a switching network comprising a plurality of switches, a resonant tank coupled between the switching network and a transformer, wherein the resonant tank comprises a series resonant inductor coupled to a switching network and the transformer and a series resonant capacitor coupled to the switching network and the transformer and a driver having an adjustable bias voltage and in response to a startup process of the resonant converter, configuring the switching network to operate a switching frequency higher than a resonant frequency of the resonant tank.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Heping Dai, Daoshen Chen, Xujun Liu, Liming Ye
  • Publication number: 20150124492
    Abstract: A method comprises providing a resonant converter, wherein the resonant converter comprises an input switch network coupled to a power source, wherein the input switch network comprises a plurality of power switches, a resonant tank coupled to the plurality of power switches, a transformer coupled to the resonant tank and an output stage coupled to the transformer, wherein the output stage comprises a synchronous rectifier formed by a first switch and a second switch, detecting a drain voltage of the first switch, comparing the drain voltage with a predetermined voltage threshold, wherein the drain voltage is coupled to a negative input of a comparator and the predetermined voltage threshold is coupled to a positive input of the comparator, generating a logic state based upon an output of the comparator and adjusting, by a control circuit, a switching frequency of the resonant converter based upon the logic state.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Dianbo Fu, Heping Dai, Liming Ye, Daoshen Chen
  • Publication number: 20150124489
    Abstract: An apparatus comprises a magnetic device coupled to an inductor-inductor-capacitor (LLC) resonant converter, an ac current sensing circuit coupled to the magnetic device, an average current sensing circuit coupled to the ac current sensing circuit and a reference voltage source coupled to the average current sensing circuit, wherein the reference voltage source is configured such that a magnitude of an average signal from the average current sensing circuit is greater than a voltage level of the reference voltage source.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Heping Dai, Xujun Liu, Liming Ye, Daoshen Chen
  • Patent number: 9026849
    Abstract: A system and method for providing reliable storage are provided. A method for initiator operations includes storing information associated with an access attempt in a store, and accessing a storage system responsive to the access attempt, wherein the storage system includes a first storage node and a second storage node arranged in a sequential loop, and where the first storage node is accessed by an initiator. The method also includes determining if the access attempt completed successfully, deleting the information from the store if the access attempt completed successfully, and indicating an error if the access attempt did not complete successfully.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: May 5, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Andrew Patterson, James Hughes, Hao Zhang