Patents Assigned to FutureWei Technologies
  • System and Method for an Efficient Database Storage Model Based on Sparse Files
    Publication number: 20150234841
    Abstract: Embodiments are provided herein for an efficient database storage model, which utilizes sparse file features to efficiently store and retrieve data. The embodiments provide database algorithms that utilize the file system abstraction layer to hide the complexity of managing disk space while providing the database a linear and contiguous logical address space for holding multiple database objects. An embodiment method includes pre-allocating, in a logical sparse file, a plurality of segments fixed in size and contiguous at fixed offsets. Upon receiving a command to write database objects to the segments, the database objects are mapped to the segments in a database catalog. The method further includes interfacing with a file system to initialize storage medium space for writing the data objects to the segments at the fixed offsets.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 20, 2015
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Jacques Earl Hebert, Gangavara Prasad Varakur
  • DUAL VERTICAL BEAM CELLULAR ARRAY
    Publication number: 20150236430
    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.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 20, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventor: Senglee FOO
  • Mach-Zehnder Modulator Bias Control for Arbitrary Waveform Generation
    Publication number: 20150236790
    Abstract: A method comprising applying an In-phase (I) offset to an I component of an orthogonal pseudo-random coded direct current (DC) bias signal, applying a Quadrature-phase (Q) offset to a Q component of the orthogonal pseudo-random coded DC bias signal, applying an I dither signal to an I Mach-Zehnder modulator (MZM), wherein the I dither signal is based on the I component of the orthogonal pseudo-random coded DC bias signal, applying a Q dither signal to a Q MZM, wherein the Q dither signal is based on the Q component of the orthogonal pseudo-random coded DC bias signal, and performing arbitrary waveform generation (AWG) by modulating an analog data signal onto an optical carrier signal via the MZMs, wherein the I offset and the Q offset are selected to mitigate crosstalk between the I MZM and the Q MZM due to a finite extinction ratio.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 20, 2015
    Applicant: Futurewei Technologies, Inc.
    Inventors: Qing Guo, Jianfeng Wang, Fei Zhu
  • HARQ Frame Data Structure and Method of Transmitting and Receiving with HARQ in Systems Using Blind Detection
    Publication number: 20150236823
    Abstract: A HARQ frame data structure and methods of transmitting and receiving with HARQ in systems using blind detection. In one embodiment, a method of transmitting over a channel using HARQ includes transmitting a first frame containing data toward a blind detection receiver, and transmitting a second frame containing at least a portion of the data and information about the first frame toward the blind detection receiver.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 20, 2015
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Petar Djukic, Hosein Nikopour
  • Low-complexity, adaptive, fractionally spaced equalizer with non-integer sampling
    Patent number: 9112742
    Abstract: An apparatus comprising a memory and a processor coupled to the memory, wherein the memory includes instructions that when executed by the processor cause the apparatus to perform the following receive an incoming signal at a sampling rate that is greater than a symbol rate associated with the incoming signal, replicate a plurality of data streams from the incoming signal, apply a plurality of fractional delays for the data streams, and perform an adaptive equalization on a plurality of data blocks generated from the data streams, wherein the fractional delay is applied to the data streams independently of the adaptive equalization, and wherein the adaptive equalization implements taps spaced at a fraction of a symbol interval associated with the incoming signal.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Syed Faisal Ali Shah, Chuandong Li, Zhuhong Zhang
  • System and method for smart relay operation in a wireless communications system
    Patent number: 9112575
    Abstract: A system and method for smart relay operation in a wireless communications system is provided. A method for smart relay operations includes receiving, at a smart relay, a transmission from a communications device, the transmission destined for a controller, decoding the transmission, computing a response based on the decoding, and transmitting the response to the controller.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Shiau-He Tsai, Oghenekome Oteri, Tao Wu, Yang Tang, Philippe Sartori
  • Uncached static short address translation table in the cache coherent computer system
    Patent number: 9110825
    Abstract: A network unit, comprising a processor and a random access memory (RAM) component coupled to the processor, wherein the RAM component comprises a memory management unit (MMU) and a data RAM, wherein the MMU comprises a complete page address table for translating a virtual memory address received from the processor into a physical memory address, and wherein the complete page address table is substantially static.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventor: Iulin Lih
  • User and device authentication in broadband networks
    Patent number: 9112909
    Abstract: A network component comprising at least one processor configured to implement a method comprising granting a user restricted access at a reduced rate without authenticating the user, attempting to authenticate the user, and granting the user unrestricted access at a full rate if the user authentication is successful. Included is a method comprising authenticating a user device, a user line, or both using a first communication, and authenticating a user using a second communication separate from the first communication. Also included is an apparatus comprising an access node (AN) configured to couple to an access network and communicate with a user equipment (UE) via the access network, wherein the UE is authenticated using either line authentication or device authentication based on the access network.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: John Kaippallimalil, Yangsong Xia
  • Resource-efficient digital chromatic dispersion compensation in fiber optical communication using spectral shaping subcarrier modulation
    Patent number: 9112608
    Abstract: An optical receiver comprising a frontend configured to receive an optical signal and convert the optical signal into a plurality of digital electrical signals comprising a plurality of spectrally shaped subcarrier signals carrying symbol mapped data information, and a digital signal processor (DSP) unit coupled to the frontend and configured to receive the digital signals from the frontend, demulitplex the digital signals into the subcarrier signals, and compensate chromatic dispersion (CD) for each of the subcarrier signals by applying an equalizer, wherein each of the subcarrier signals is associated with a unique tone frequency and a unique spectral shape. Also disclosed is an optical transmitter comprising a digital signal processor (DSP) unit configured to map data symbols onto a plurality of electrical subcarrier signals that are non-overlapping and spectrally shaped in a frequency domain.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yu Sheng Bai, Yanjun Zhu, Qing Guo, Yan Cui, Fei Zhu
  • Apparatus and method for an optical package structure using aluminum nitride
    Patent number: 9112091
    Abstract: An apparatus and method are disclosed for providing monolithic optical packages. An embodiment optical package includes a base made of aluminum-nitride (AlN) that is configured to support an optical component, a plurality of sidewalls made of AlN that are coupled to the base, the sidewalls are configured to surround the optical component, and a feed-through made of AlN that is coupled to one of the sidewalls, wherein the feed-through is configured to feed a plurality of leads through the one sidewall to provide an electrical connection to the optical component, wherein the base, the sidewalls, and the feed-through have a same coefficient of thermal expansion (CTE) for AlN. An embodiment method includes punching and printing AlN tapes to build a base, a plurality of sidewalls joined to the base, and a feed-through coupled to the sidewalls, and attaching a plurality of electrical leads into the feed-through.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: August 18, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Anwar A. Mohammed, Fei Yu, Qi Deng
  • System and Method for Securing Source Routing Using Public Key based Digital Signature
    Publication number: 20150229618
    Abstract: Embodiments are provided for securing source routing using public key based digital signature. If a protected source route is tampered with, a public key based method allows a downstream node to detect the tampering. The method is based on using digital signatures to protect the integrity of source routes. When creating a source route for a traffic flow, a designated network component computes a digital signature and adds the digital signature to the packets. When the packets are received at a node on the route, the node uses the digital signature and a public key to verify the source route and determines accordingly whether the source route has been tampered with. If tampering is detected, the receiving node stops the forwarding of the packets.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 13, 2015
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Tao Wan, Peter Ashwood-Smith, Mehdi Arashmid Akhavain Mohammadi, Guoli Yin, Yapeng Wu
  • System and Method for a Multi-Wavelength Coherent Receiver
    Publication number: 20150229409
    Abstract: Embodiments are provided for a novel multi-wavelength coherent receiver (MWCR) design and operation capable of detecting multiple optical wavelength channels. The embodiments include an optical receiver comprising a polarization-diversity optical hybrid module, a multiple wavelength local oscillator (MWLO) coupled to an input of the polarization-diversity optical hybrid module, a plurality of PIN diodes coupled to the polarization-diversity optical hybrid module, a plurality of analog-to-digital converters (ADCs) coupled to the PIN diodes, and a digital signal processing (DSP) module coupled to the ADCs. The polarization-diversity optical hybrid module splits an optical signal into multiple polarization components, wherein the optical signal includes multiple channels at multiple wavelengths. The MWLO locks the optical signal to the multiple wavelengths of the channels simultaneously.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 13, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Chen Chen, Zhuhong Zhang, Chuandong Li
  • SYSTEM AND METHOD FOR GUARD BAND UTILIZATION FOR SYNCHRONOUS AND ASYNCHRONOUS COMMUNICATIONS
    Publication number: 20150229502
    Abstract: Embodiments are provided for guard band utilization for synchronous and asynchronous communications in wireless networks. A user equipment (UE) or a network component transmits symbols on data bands assigned for primary communications. The data bands are separated by a guard band having smaller bandwidth than the data bands. The UE or network component further modulates symbols for secondary communications with a spectrally contained wave form, which has a smaller bandwidth than the guard band. The spectrally contained wave form is achieved with orthogonal frequency-division multiplexing (OFDM) modulation or with joint OFDM and Offset Quadrature Amplitude Modulation (OQAM) modulation. The modulated symbols for the secondary communications are transmitted within the guard band.
    Type: Application
    Filed: February 13, 2014
    Publication date: August 13, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Usa Vilaipornsawai, Mohammad Javad Abdoli, Jianglei Ma, Ming Jia
  • SYSTEM AND METHOD FOR VIRTUAL MULTI-POINT TRANSCEIVERS
    Publication number: 20150230224
    Abstract: A method embodiment includes compiling, by a network device, a cooperation candidate set (CCS) and determining a cooperation active set (CAS). The CCS includes a plurality of potential cooperating user equipment (CUEs) for selection to the CAS, and the plurality of potential CUEs is selected from a plurality of user equipment (UEs) in the network. The CAS is a set of CUEs selected from the CCS. A target user equipment (TUE) and the set of CUEs form a virtual multipoint transceiver.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 13, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Amine Maaref, Jianglei Ma
  • Methods and Systems for Dynamically Allocating Resources and Tasks Among Database Work Agents in an SMP Environment
    Publication number: 20150227586
    Abstract: Dynamically re-allocating tasks and/or memory quotas amongst work agents in symmetric multiprocessing (SMP) systems can significantly mitigate delays and inefficiencies associated with data skew. For example, unfinished tasks can be reallocated from a busy work agent to an idle work agent upon determining that the idle work agent has finished processing its originally assigned set of tasks. Alternatively, a portion of a memory quota assigned to an idle work agent can be reallocated to a busy work agent for use in processing the remaining tasks. Memory quotas can be re-assigned by releasing the memory quota back into a memory pool once the idle work agent has finished processing its originally assigned tasks, and then reallocating some or all of the memory quota to the busy work agent.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 13, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Huaizhi Li, Qingqing Zhou, Yang Sun
  • Systems and methods for uplink power control and scheduling in a wireless network
    Patent number: 9107174
    Abstract: Methods and systems for facilitating uplink power control (PC) and scheduling in a wireless network are provided. In one example, common interference patterns are obtained from long term channel statistics, and used to perform local PC and scheduling by distributed base stations (eNBs). In some implementations, the common interference patterns are obtained through statistical narrowing techniques that identify common ones out of a plurality of potential interference patterns. The common interference patterns may specify maximum interference thresholds and/or individual eNB-to-eNB interference thresholds which may govern the local PC and scheduling decisions of the distributed eNBs.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: August 11, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Gamini Senarath, Hang Zhang, Liqing Zhang, Ho-Ting Cheng
  • Method and apparatus of managing bandwidth allocation for upstream transmission in a unified optical-coaxial network
    Patent number: 9106363
    Abstract: A method of allocating upstream bandwidth on a network comprising mapping an integer portion of a value obtained from a grant start time into a symbol number of a data frame on a coaxial segment of the network, wherein the value comprises the grant start time in units of a length of a data frame in the coaxial segment of a network, and wherein the length of the data frame comprises a preselected number of units of time defined in an optical segment of a network; mapping a fractional portion of the value obtained from the grant start time into a subcarrier number of the data frame; and mapping a grant length into a number subcarriers of the data frame.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 11, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Liming Fang, Jim Chen, Li Zhang
  • Method and apparatus for recovering time-domain hybrid modulated QAM signals
    Patent number: 9106503
    Abstract: A method for recovering a quadrature amplitude modulated (QAM) signal is disclosed. The method includes receiving a QAM signal at a demultiplexers, where the QAM signal comprises multiple modulation schemes, splitting the QAM signal into k branches, where k is the number of QAM modulation schemes of the signal, passing the branch having the lowest order QAM modulation scheme to a first equalizer for recovering and tracking polarization and compensating polarization mode dispersion (PMD), updating a tap updating algorithm with a recovery value determined by the first equalizer, and recovering and tracking polarization and compensating PMD for all other branches based on the recovery value.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 11, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Zhuhong Zhang, Chuandong Li
  • Transmitter initiated on-line reconfiguration
    Patent number: 9106367
    Abstract: A method implemented by a first network component (NC) in a digital subscriber line (DSL) system comprising retrieving an on-line reconfiguration (OLR) request from a control entity (CE), wherein the OLR request is generated by the CE based on a noise increase on a subscriber line between the NC and a second NC in the DSL system, and in response to the OLR request, transmitting a message to a receiver in the second NC to request for a reduced data rate on the subscriber line.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 11, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventor: Dong Wei
  • Self-characterization tunable optical network unit
    Patent number: 9106050
    Abstract: A tunable optical transmitter, comprising a tunable laser comprising a distributed Bragg reflector (DBR) section, a phase section, and a gain section, a photodiode detector (PD) optically coupled to the tunable laser, wherein the tunable optical transmitter lacks a temperature controller, and wherein the tunable optical transmitter is configured to lock onto a wavelength at different operating temperatures.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: August 11, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventor: Xuejin Yan