Patents Assigned to FutureWei Technologies
  • DUAL MODE POWER SUPPLY FOR VOLTAGE CONTROLLED OSCILLATORS
    Publication number: 20200036383
    Abstract: The disclosure relates to technology for power supply for a voltage controller oscillator (VCO), where the power supply has a closed loop mode and an open loop mode. In closed loop mode, a peak detector circuit determines the amplitude of the output for the VCO, which is compared to a reference value in an automatic gain control loop. An input voltage for the VCO is determined based on a difference between the reference value and the output of the peak detector circuit. The peak detector circuit can be implemented using parasitic bipolar devices in an integrated circuit formed in a CMOS process. While operating in the closed loop mode, a controller monitors the input voltage and, when the input voltage is stabilized, the controller uses this input voltage value determined in open loop mode.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 30, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventors: Lawrence E Connell, Michael Bushman
  • POWER SUPPLY FOR VOLTAGE CONTROLLED OSCILLATORS WITH AUTOMATIC GAIN CONTROL
    Publication number: 20200036385
    Abstract: The disclosure relates to technology for power supply for a voltage controller oscillator (VCO). A peak detector circuit determines the amplitude of the output for the VCO, which is compared to a reference value in an automatic gain control loop. An input voltage for the VCO is determined based on a difference between the reference value and the output of the peak detector circuit. The peak detector circuit can be implemented using parasitic bipolar devices in an integrated circuit formed in a CMOS process.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 30, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventor: Michael Bushman
  • System and method for a synthetic trace model
    Patent number: 10546075
    Abstract: A system and method for a synthetic trace model includes providing a first system model, the first system model comprising a plurality of subsystem models, each of the plurality of subsystem models having a trace format, generating a first plurality of traces from an overall pool of trace instructions, each of the first plurality of traces generated for respective ones of the plurality of subsystem models, according to the trace format of the subsystem model, executing the traces on each of the subsystem models, and evaluating execution characteristics for each trace executed on the first system model.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: January 28, 2020
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: YwhPyng Harn, Fa Yin, Xiaotao Chen
  • System and method for analyzing a root cause of anomalous behavior using hypothesis testing
    Patent number: 10546241
    Abstract: The disclosure relates to technology for identifying a root cause of anomalous behavior in a communications network. A key quality indicator (KQI) indicative of a performance level associated with a source is received in the communication network. The KQI includes a performance measurement value to identify a performance level of the source having the anomalous behavior. An improved KQI indicative of a level of degradation is calculated based on the anomalous behavior at the source by recovering the KQI to a historical value. Sources of the anomalous behavior are clustered into subsets according to the level of degradation based on the calculated KQI improvement. A global or partial degradation type of the root cause source in the subset having a severe level of degradation is determined using hypothesis testing, and a confidence value is provided for the accepted degradation type.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: January 28, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Kai Yang, Sijia Liu
  • Signaling and processing content with variable bitrates for adaptive streaming
    Patent number: 10547659
    Abstract: A method for adaptive streaming of a media content, wherein the method comprises receiving a media presentation description that provides presentation information for the media content, determining a plurality of representations from the media presentation description that comprise segments that are provided with bitrate and quality information, selecting a media segment that meets a desired quality level to download from one of the representations, updating a buffered media time for downloading the media segment, and determining when to switch to another representation by comparing the buffered media time to a switching threshold value.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 28, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Shaobo Zhang, Xin Wang, Alexander Giladi, Xin Liu, Yangpo Xu, Changquan Ai, Peiyun Di
  • System and method for data redistribution in a database
    Patent number: 10545815
    Abstract: A method for data redistribution of a job data in a first datanode (DN) to at least one additional DN in a Massively Parallel Processing (MPP) Database (DB) is provided. The method includes recording a snapshot of the job data, creating a first data portion in the first DN and a redistribution data portion in the first DN, collecting changes to a job data copy stored in a temporary table, and initiating transfer of the redistribution data portion to the at least one additional DN.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 28, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Le Cai, QingQing Zhou, Yang Sun
  • Elegant temporal label switched path tunnel service controller
    Patent number: 10547543
    Abstract: A method implemented by a network element (NE) configured as a temporal tunnel service (TTS) controller, comprising computing, via a processor of the NE, a path in a network for a temporal label switched path (LSP), wherein the path satisfies a constraint in a scheduled time interval comprising a predetermined start time and a predetermined end time, reserving, at a current time prior to the predetermined start time via the processor, a first network resource on a link along the path computed for the temporal LSP, wherein the first network resource is reserved for the temporal LSP to carry traffic in the scheduled time interval, and sending, at the predetermined start time via a transmitter of the NE, a LSP creation request to a node associated with the temporal LSP to request creation of the temporal LSP along the path in the network.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: January 28, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Huaimo Chen, Renwei Li
  • CA POWER MEASUREMENT
    Publication number: 20200028597
    Abstract: A system and method for transmitting and for detecting a transmission power level of a carrier of aggregated carrier signals is configured to generate a plurality of carrier signals as a carrier aggregated signal and to generate an outgoing radio frequency (RF) signal based on the carrier aggregated signal and to produce a feedback signal based the outgoing RF signal. The system process the feedback signal by down converting a first carrier signal within the feedback signal from RF, canceling a down converted harmonically-related signal or an ADC Fs related signal of a second carrier of the carrier aggregated signal and producing a signal representative of the output power of the first carrier of the carrier aggregated signal within the feedback signal.
    Type: Application
    Filed: December 31, 2018
    Publication date: January 23, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventors: Wael Al-Qaq, Hong Jiang
  • Methodology to improve the anomaly detection rate
    Patent number: 10541903
    Abstract: A system and method of improving anomaly detection rate in a communication network. A server computer may receive a data set comprising traffic flows communicated over the communication network and group the traffic flows into data categories based on the type of network service such as transport control protocol (TCP) port numbers or User Datagram Protocol (UDP) port numbers of the traffic flows, or based on application layer protocols associated with the traffic flows. The server computer may further detect anomalies in each of the data categories based on inconsistencies between at least one common feature associated with a data category and traffic flows in the data category. Different data categories may be associated with different the at least one common feature. The anomaly detection may be supervised or unsupervised.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: January 21, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Zhibi Wang, Tuo Li
  • System and method for digital communications with interference avoidance
    Patent number: 10542557
    Abstract: A method for communicating in a wireless communications system includes receiving, by a first station, an uplink scheduling information and a first frequency resource usage indicator from an access point, the first frequency resource usage indicator indicating a utilization of a first set of network resources for carrying acknowledgement information from the access point. The method also includes transmitting, by the first station, a first data packet to the access point in accordance with the uplink scheduling information and also transmitting, by the first station, a second frequency resource usage indicator to a second station that is not served by the access point, the second frequency resource usage indicator indicating that the first set of network resources are being utilized by the first station.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: January 21, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Zhigang Rong, Yunsong Yang
  • Gapless optical mode converter
    Patent number: 10539744
    Abstract: A gapless optical mode converter comprising a fiber holder configured to receive and hold an optical transmission line, a first glass block coupled via an optical adhesive at a first side to the fiber holder, a lens coupled via the optical adhesive at a first side to a second side of the first glass block, and a holder configured to hold the fiber holder, the first glass block, and the lens.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 21, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Rongsheng Miao, Zongrong Liu, Xueyan Zheng, Xiao Shen
  • Cloud service control and management architecture expanded to interface the network stratum
    Patent number: 10542076
    Abstract: A method implemented by a cloud service control gateway (CSCG), comprises transmitting, by a transmitter, a query message to a network control gateway (NCG) operating in a network stratum, wherein the query message comprises a network resource requirement, receiving, by a receiver, a reply to the query message from the NCG, wherein the reply comprises a status of resources in the network stratum, and selecting, by a processor coupled to the transmitter and the receiver, a destination server for an application request based on the status of resources in the network stratum and the network resource requirement.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: January 21, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventor: Young Lee
  • Methods for data communication to a platoon of connected vehicles
    Patent number: 10542464
    Abstract: It is possible to reduce latency and/or overhead when performing a platoon handover by using the leading vehicle in the platoon to communicate handover requests and/or initial resource requests (e.g., random access transmissions) on behalf of trailing vehicles in the platoon. In one example, a leading vehicle in a platoon communicates a handover request to a source AP to request handover of the entire platoon from the source AP to a target AP. In such an example, the source AP then communicates handover commands to each vehicle in the platoon without receiving separate handover requests from the trailing vehicles, thereby reducing overhead in the access network. The handover commands notify the trailing vehicles of the handover, and may be sequentially communicated to the trailing vehicles based on their order in the platoon.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 21, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Murali Narasimha, Philippe Sartori, Vipul Desai, Weimin Xiao, Mazin Ali Al-Shalash, Anthony C.K. Soong
  • Power systems with inverter input voltage control
    Patent number: 10536002
    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: Grant
    Filed: May 12, 2017
    Date of Patent: January 14, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiaolin Mao, Heping Dai, Huibin Zhu, Dianbo Fu
  • Active MEMS damping
    Patent number: 10532923
    Abstract: Methods and apparatus for reducing the oscillation of a MEMS actuator. In one embodiment, a driving signal is generated to adjust the MEMS actuator through a set of driving wires coupled to the MEMS actuator. A motion-induced signal from the set of driving wires coupled to the MEMS actuator is received in response to the driving signal. The motion-induced signal is filtered to generate a filtered motion-induced signal. The filtered motion-induced signal is amplified to generate an amplified filtered motion-induced signal. The driving signal is adjusted based on the amplified filtered motion-induced signal to reduce the oscillation of the MEMS actuator.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 14, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Jiejiang Xing, Yusheng Bai
  • MULTI-ELEMENT RESONATOR
    Publication number: 20200014330
    Abstract: A resonant tank includes a first capacitor formed on a semiconductor substrate, a first inductor formed on the semiconductor substrate, a second capacitor formed on the semiconductor substrate, and a second inductor formed on the semiconductor substrate. The first capacitor, the first inductor, the second capacitor, and the second inductor are connected in a ring configuration, with each capacitor connected between a pair of the inductors and with each inductor connected between a pair of the capacitors. An amplifier circuit is coupled to the resonant tank and configured to amplify a signal in the resonant tank.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 9, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventors: Michael Bushman, James Caldwell
  • EVENT TO SERVERLESS FUNCTION WORKFLOW INSTANCE MAPPING MECHANISM
    Publication number: 20200012545
    Abstract: The disclosure relates to technology for mapping events to workflow instances. One or more event messages are received with an embedded token from one or more event sources associated with an application. A workflow specification is received that specifies a location of the token embedded in the one or more event messages, and the token is extracted from the one or more event messages using the location of the token specified in the workflow specification. The events are then mapped to a workflow instance of the application based on the token the one or more event messages.
    Type: Application
    Filed: August 19, 2019
    Publication date: January 9, 2020
    Applicant: Futurewei Technologies, Inc.
    Inventors: Hong Zhang, Henry Louis Fourie
  • Unifying message to support downlink beam management over multiple groups of beam paired links (MGBPL)
    Patent number: 10530548
    Abstract: A transmit-receive-point (TRP) may send a beam management configuration message to a user equipment (UE) that includes downlink beam management configuration parameters to use for an ensuing beam management procedure between the TRP and the UE. The beam management configuration message may specify various parameters associated with TRP/UE beams that are to be evaluated during the beam management procedure, directional transmission/reception capabilities of the TRP (e.g., how many transmit-beams and/or receive-beams the TRP is capable of using for simultaneous direction reception/transmission, etc.), spreading sequence parameters (e.g., which spreading sequence, or spreading sequence group, is to be used during the beam management procedure), and/or beam management protocol information.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 7, 2020
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Pengfei Xia, Bin Liu
  • Named data routing protocol for low-power and lossy wide-area networks (NRPL)
    Patent number: 10530685
    Abstract: The disclosure relates to technology distributing messages in a low power and lossy network (LLNs). A downstream message including one or more name prefixes hosted at a source node is forwarded along a nodal route of a routing topology. An upstream message is received from one or more nodes along one or more nodal routes in the routing topology based on a routing entry towards a parent node as learned from the downstream message, and an interest message, including one or more of a request for content or rank, is received from the one or more nodes along the one or more nodal routes having an optimal path, the optimal path determined by routing entries stored in the one or more nodes.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: January 7, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventor: Lijun Dong
  • Phase interpolation and rotation apparatus and method
    Patent number: 10530376
    Abstract: An apparatus comprises a ring oscillator comprising a plurality of delay stages connected in cascade and an injection apparatus comprising a plurality of injection devices, wherein the injection devices receive a reference clock from their inputs and outputs of the injection devices are coupled to respective outputs of the delay stages, and wherein each injection device comprises a polarity selection stage having inputs coupled to the reference clock and an adjustable gain stage having inputs coupled to outputs of the polarity selection stage and outputs coupled to outputs of a corresponding delay stage.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: January 7, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventor: Euhan Chong