Patents Assigned to FutureWei Technologies
  • Methods and device for communications of OFDM signals over wideband carrier
    Patent number: 10142068
    Abstract: Methods for wireless communications over a wideband carrier are provided. Time-frequency resources of the wideband carrier within a transmission time interval are divided into multiple time-frequency resource blocks. Each of the time-frequency resource blocks corresponds to a group of contiguous subcarriers of the wideband carrier and orthogonal frequency division multiplexing symbols. Data streams may be scheduled to be transmitted in different time-frequency resource blocks, and may be destined for different user equipments or the same user equipment. Baseband processing operations may be performed on data streams scheduled in different time-frequency resource blocks independently from one another. Separate control channels or one common control channel may be configured for data transmissions in different time-frequency resource blocks.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: November 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qian Cheng, Weimin Xiao, Philippe Sartori, Jialing Liu
  • User interface display composition with device sensor/state based graphical effects
    Patent number: 10140951
    Abstract: A method comprising receiving sensor data from a sensor, obtaining image data from a graphical effects shader based on the sensor data, blending the image data with a plurality of application surfaces to create a blended image, and transmitting the blended image to a display. The method may further comprise blending a color image with the blended image in response to a reduction in ambient light. Also disclosed is a mobile node (MN) comprising a sensor configured to generate sensor data, a display device, and a processor coupled to the sensor and the device display, wherein the processor is configured to receive the sensor data, obtain image data generated by a graphical effects shader based on the sensor data, blend the image data with an application surface associated with a plurality of applications to create a blended image, and transmit the blended image to the display.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventor: Anthony Mazzola
  • Synchronization error reduction in common public radio interface (CPRI) passive optical networks (PONs)
    Patent number: 10142094
    Abstract: A first apparatus comprises: a processor configured to generate a first synchronization message; a transmitter coupled to the processor and configured to transmit the first synchronization message to a second apparatus at a first wavelength; and a receiver coupled to the processor and configured to receive a second synchronization message from the second apparatus at a second wavelength and in response to the first synchronization message, the first wavelength and the second wavelength are based on a reduction of a latency difference between the second synchronization message and the first synchronization message, and the processor is further configured to calculate a TO between the first apparatus and the second apparatus based on the reduction.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: November 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiang Liu, Frank Effenberger, Huaiyu Zeng
  • System and method for low power transmission
    Patent number: 10142936
    Abstract: A method for operating a transmitting device includes generating a frame having a first preamble and a second preamble. The method also includes transmitting a first preamble at a first power level, and transmitting a subset of a second preamble at a second power level, wherein the first power level and the second power level differ.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: November 27, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Zhigang Rong, Younghoon Kwon, Yunsong Yang
  • Mobile device camera viewfinder punch through effect
    Patent number: 10140015
    Abstract: In an example embodiment, an application is executed on a mobile device, causing generation of application graphical output in an application layer. The application layer is rendered on a touchscreen display. A first gesture of a user is detected, and in response to the first gesture a viewfinder layer is generated, the viewfinder layer containing real-time image data from the embedded camera via a camera service. A composite of the application layer, the viewfinder layer, and a transparency mask is rendered so that a portion of the viewfinder layer is visible and a portion of the application layer is visible on the touchscreen display at the same time. Then a second gesture by the user is detected, and in response to the second gesture, viewfinder data from the viewfinder layer is captured and the viewfinder layer and transparency mask are removed.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Robert McCarthy, Anthony Mazzola
  • Higher-level clock and data recovery (CDR) in passive optical networks (PONs)
    Patent number: 10142024
    Abstract: An apparatus comprises: a CDR sub-system comprising: an FFE; a decision component coupled to the FFE; a subtractor coupled to the FFE and the decision component; and a tap weight updater coupled to the subtractor and the FFE; and a PR-MLSE component coupled to the CDR sub-system. A method comprises: converting an optical signal with a first modulation format to an analog electrical signal; converting the analog electrical signal to a first digital signal; equalizing the first digital signal into a second digital signal with a second modulation format, wherein the second modulation format has more levels than the first modulation format; and performing CDR on the second digital signal.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Shuchang Yao, Lei Zhou, Minghui Tao, Xiang Liu, Frank Effenberger
  • GEOMETRIC APPROACH TO PREDICATE SELECTIVITY
    Publication number: 20180336262
    Abstract: The disclosure relates to technology for estimating selectivity of non-join multi-column (NJMC) predicates of multi-column table (MCT) database queries is disclosed. The selectivity may be geometrically estimated by representing the full space of the MCT as one polyhedron having at least one dimension for each column of the MCT, and representing the NJMC predicate space as another polyhedron having at least one dimension for each column of a predicate space determined by applying the NJMC predicate to the MCT. Then the selectivity of the NJMC predicate may be estimated by computing a percentage of the size of the NJMC predicate space polyhedron to the size of the full space polyhedron. This more accurate estimate helps database query optimizers produce better query execution plans that utilize system resources more efficiently.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 22, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventor: Ahmad Ghazal
  • SEGMENT-BASED TRANSFORMS IN DIGITAL SIGNAL PROCESSING
    Publication number: 20180337808
    Abstract: A segment-based approach for fast fourier transforms of input signals is provided for the generation of baseband signals. A FFT is performed individually for each of the segments from the input signal and the FFT result from each segment is accumulated to provide a final FFT for an input signal symbol. After the samples are received for one segment, a FFT can be performed to generate an intermediate FFT result while samples for the additional segment(s) are received. The system accumulates the intermediate result from the segments into a final FFT result that can be used to generate the baseband signal. Segment-based processing of an input signal can provide faster and more efficient processing to generate a baseband signal. Segment-based processing can also decrease the required size of the input buffers for antennas.
    Type: Application
    Filed: May 17, 2017
    Publication date: November 22, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventors: Weizhong Chen, Tao Zhang
  • System and method for power indications
    Patent number: 10136440
    Abstract: A wireless communications system includes an access point (AP) and multiple stations. The AP transmits a reference indicator indicating a target receive power reference of the AP and an adjustment indicator indicating an adjustment to the target receive power reference for a station. When the station receives the reference indicator and the adjustment indicator, the stations determines a transmission power level in accordance with the target receive power reference and the adjustment to the target receive power reference. The stations transmits a packet at the transmission power level to the AP. Reduction in signaling overhead is achieved.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 20, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Zhigang Rong, Yunsong Yang
  • Dynamic partitioning of processing hardware
    Patent number: 10133504
    Abstract: A system and method of partitioning host processing system resources is provided. An integrated circuit device having a plurality of processors or processing cores and a number of interfaces is portioned at boot into different hardware partitions based on the application needs of the host processing system. The technology provides a non-transitory memory storage including instructions; and a plurality of processors in communication with the memory. The integrated circuit device also includes a plurality of communication interfaces in communication with the processors. At least one of the plurality of processors executes instructions to configure a subset of the plurality of processors to a first hardware partition, and configure a different subset of the plurality of processors and at least one of the plurality of communication interfaces to a second hardware partition.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 20, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Weimin Pan, Kangkang Shen
  • MOS capacitor optical modulator with transparent conductive and low-refractive-index gate
    Patent number: 10133098
    Abstract: A metal-oxide semiconductor (MOS) optical modulator including a doped semiconductor layer having a waveguide structure, a dielectric layer disposed over the waveguide structure of the doped semiconductor layer, a gate region disposed over the dielectric layer, wherein the gate region comprises a transparent electrically conductive material having a refractive index lower than that of silicon, and a metal contact disposed over the gate region. The metal contact, the gate region, and the waveguide structure of the doped semiconductor layer may be vertically aligned with each other.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: November 20, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Hongmin Chen, Qianfan Xu, Li Yang, Xiao Shen, Dawei Zheng, Yusheng Bai, Hongbing Lei, Eric Dudley
  • AC/DC converters with wider voltage regulation range
    Patent number: 10135350
    Abstract: A converter is provided. The converter includes a first DC/DC converter, a non-isolated DC/DC converter and a control circuit. The first DC/DC converter includes a transformer, a primary side inverter and a secondary side rectifier. The primary side inverter and a secondary side rectifier are operable at multiple operating modes. The control circuit determines an operating mode for the primary side inverter or the secondary side rectifier, and controls the primary side inverter or the secondary side rectifier to change its respective operating mode.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: November 20, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Liming Ye, Heping Dai, Dianbo Fu
  • System and method for millimeter wave communications
    Patent number: 10135512
    Abstract: A method includes determining that a change is needed to a configuration of a user equipment (UE) centric cloud cell, where the determining is in accordance with measurement reports of beam-formed reference signals transmitted by mmWave TPs of a measurement set, and when the change comprises a change to a modulation coding scheme (MCS) level of a communications link associated with the UE centric cloud cell, adjusting the MCS level of the communications link. The method includes when the change comprises at least one of a change to a communications beam or a mmWave TP change, sending a change query requesting the at least one of the change to the communications beam or the mmWave TP change, and receiving from a central controller a confirmation message. The method includes updating a mmWave UE and second mmWave TPs of the UE centric cloud cell regarding the change.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 20, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Richard Stirling-Gallacher, Nathan Edward Tenny, Bin Liu, Lili Zhang
  • System and method for changing an identifier of a basic service set
    Patent number: 10136349
    Abstract: A method for changing an identifier of a basic service set (BSS) served by an access point (AP) includes determining a first value of the identifier of the BSS, transmitting a first physical (PHY) protocol data unit (PPDU) with a first BSS identifier field in a PHY header of the first PPDU set to a pre-specified value, transmitting at least one first management frame including a second BSS identifier field in a frame body of the at least one first management frame set to the first value, and transmit at least one second PPDU with the first BSS identifier field in the PHY header set to the first value when the AP is able to start using the first value to set the first BSS identifier field in the PHY header of PPDUs transmitted by the AP.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: November 20, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventor: Yunsong Yang
  • System and method for setting cyclic prefix length
    Patent number: 10135652
    Abstract: A method for communicating in a wireless communications system includes receiving scheduling information including information for an uplink transmission scheduled for the station, and determining a first length of a first cyclic prefix for a transmission in accordance with the scheduling information. The method also includes transmitting the transmission with the first cyclic prefix.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 20, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Zhigang Rong, Yunsong Yang, Young Hoon Kwon
  • System, apparatus, and method for at least mitigating a signal reflection
    Patent number: 10135548
    Abstract: An apparatus, system, and method are provided for at least mitigating a signal reflection. Included is a filter configured to receive a data signal for transmission, and filter the data signal to generate a filtered data signal. Also included is a gain regulator in electrical communication with the filter. The gain regulator is configured to receive the filtered data signal for adjusting a gain of the filtered data signal to generate a gain regulator output signal for use in at least mitigating a signal reflection. Further, a controller is provided in electrical communication with the filter and the gain regulator. The controller is configured to receive the filtered data signal, and process the filtered data signal to generate at least one controller output signal for use in controlling the filter and the gain regulator.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: November 20, 2018
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Hiroshi Takatori, Zhan Duan, Purackal M. Mammen
  • Coding Chroma Samples In Video Compression
    Publication number: 20180332283
    Abstract: A decoder and a method to process chroma blocks by the decoder are described. The method includes receiving a coding block from an encoder; partitioning the coding block into a plurality chroma blocks; merging at least two chroma blocks among the plurality chroma blocks into a merged block, where a width or height of a chroma block among the at least two chroma blocks is less than a threshold, and a width or height of the merged block is no less than the threshold; deriving prediction information for the merged block; generating prediction samples according to the derived prediction information; and obtaining reconstructed chroma samples according to the generated prediction samples. By merging the at least two chroma blocks, whose width or height is less than a threshold, into the merged block, hardware complexity can be reduced.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 15, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventors: Shan LIU, Yin ZHAO
  • POWER SYSTEMS WITH INVERTER INPUT VOLTAGE CONTROL
    Publication number: 20180331540
    Abstract: A direct current (DC) bus voltage from a combined output of a plurality of DC power modules is controlled based on an alternating current (AC) voltage of a power grid. The DC bus voltage tracks the AC grid voltage to provide efficient conversion between the DC power sources and the AC grid, even when the amplitude of the AC grid voltage varies. In one example, a variable reference voltage is generated based on a detected AC grid voltage. The reference voltage increases and decreases in proportion to increases and decreases in the AC grid voltage. In this manner, large differences between the bus voltage and the grid voltage are avoided. By closely tracking the two voltages, efficiency in the modulation index for power conversion can be achieved.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 15, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventors: Xiaolin Mao, Heping Dai, Huibin Zhu, Dianbo Fu
  • IN-SITU OAM SAMPLING AND DATA VALIDATION
    Publication number: 20180331933
    Abstract: The disclosure relates to technology for sending network management information in a network. A source edge node modifies data packets by encapsulating an operations, administration and maintenance (OAM) header in a select number of the data packets. The OAM header includes a data type bitmap and a node data list. A valid node bitmap is inserted into the OAM header prior to the node data list, and each bit in the valid node bitmap identifies whether one or more nodes in the network add data to the OAM header. A valid data bitmap is then added into the OAM header for each of the one or more nodes identified as adding data to the OAM header. The valid data bitmap indicates types of data items available at the node. Subsequently, the edge node issues the select data packets to the one or more nodes identified in the OAM header.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 15, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventor: Haoyu Song
  • FILE ACCESS PREDICATION USING COUNTER BASED EVICTION POLICIES AT THE FILE AND PAGE LEVEL
    Publication number: 20180329712
    Abstract: The disclosure relates to technology for predicting file access patterns by identifying one or more files stored in a first cache and one or more pages associated with each of the one or more files in a second cache. The one or more files in the first cache are evicted based on a first eviction policy and, for each of the one or more files, the one or more pages in the second cache are evicted based on a second eviction policy. Access patterns of the one or more files based on the first and second eviction policies may then be predicted.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Applicant: Futurewei Technologies, Inc.
    Inventors: Gopinath Palani, Jun Xu