Measuring Or Testing Of Receiver Patents (Class 455/226.1)
  • Patent number: 10859460
    Abstract: A coupling for use with a blower unit for detecting leaks in a structure, wherein the coupling is constructed and arranged to attach to a surface of the structure defining an opening and to the blower unit, and to allow air flow through the coupling when the blower unit is attached to the coupling and to prevent air flow through the coupling when the blower unit is not attached to the coupling, and wherein the coupling further includes a pressure port defined within a surface of the coupling constructed and arranged to accommodate at least one of a differential pressure gauge fitting or a tube.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 8, 2020
    Assignee: Sealtech Manufacturing USA
    Inventor: Scott A. DeLadurantaye
  • Patent number: 10845401
    Abstract: Nonlinear distortion of a device under test (DUT) is detected by obtaining measurements of a multi-tone input signal from a signal generator to a DUT, to obtain a measured multi-tone input signal. Measurements are also obtained of a multi-tone output signal from the DUT that is generated based on the multi-tone input signal, to obtain a measured multi-tone output signal. A correlated part of the measured multi-tone output signal that is correlated with the measured multi-tone input signal is determined insofar as the correlated part corresponds to a frequency response function of the DUT.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 24, 2020
    Assignee: Keysight Technologies, Inc.
    Inventors: Jan Verspecht, Keith F. Anderson, Joel P. Dunsmore
  • Patent number: 10719530
    Abstract: A set of virtualized computing services may include multiple types of virtualized data store differentiated by characteristics such as latency, throughput, durability and cost. A sequence of captures of a data set from one data store to another may be scheduled to achieve a variety of virtualized computing service user and provider goals such as lowering a probability of data loss, lowering costs, and computing resource load leveling. Data set captures may be scheduled according to policies specifying fixed and flexible schedules and conditions including flexible scheduling windows, target capture frequencies, probability of loss targets and/or cost targets. Capture lifetimes may also be managed with capture retention policies, which may specify fixed and flexible lifetimes and conditions including cost targets. Such data set capture policies may be specified with a Web-based administrative interface to a control plane of the virtualized computing services.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 21, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Tate Andrew Certain, Matthew S. Garman, Sachin Jain, Fiorenzo Cattaneo
  • Patent number: 10694451
    Abstract: Methods and systems are described for determining an optimal access point for a client device based on the relative difference between signal strengths of wireless signals received by the client device from access points. In particular, the signal strengths of wireless signals received by a client device from access points are determined without receipt of signal strength and/or transmit power information from the client device. Instead, the signal strength difference value may be determined based on known characteristics of signals transmitted by the access points and known characteristics of signals received by the access points from the client device. This relative difference value may thereafter be used to determine an appropriate access point to provide network access to the client device.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 23, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jin Xie, Jiwoong Lee, Sachin Ganu
  • Patent number: 10694371
    Abstract: A method and an apparatus are provided in a wireless communication system. Mobility history information is generated including information on a time duration corresponding to out-of-service. It is identified whether the terminal is in a radio resource control (RRC) connected mode. The mobility history information is transmitted to a base station if the terminal is in the RRC connected mode.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: June 23, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Chae Gwon Lim, Kyeong In Jeong, Sung Ho Choi, Beom Sik Bae
  • Patent number: 10681558
    Abstract: A communication circuit arrangement includes a sub sampling circuit configured to obtain wideband signal data including candidate reference sequences from a plurality of carrier channels and to downsample the wideband signal data to shift the candidate reference sequences closer to each other in frequency, a comparison circuit configured to compare the downsampled signal data to a composite detection sequence to detect whether any of the candidate reference sequences match any of a plurality of predefined reference sequences in the composite detection sequence, and a decision circuit configured to determine whether any of the plurality of carrier channels contain an active network based on the detection results.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 9, 2020
    Assignee: Apple Inc.
    Inventors: Markus Dominik Mueck, Ying He, Beeshanga Jayawickrama, Eryk Dutkiewicz
  • Patent number: 10674453
    Abstract: Techniques for performing path loss (PL) compensation in coordinated multipoint (CoMP) systems are provided. A method for wireless communications by a user equipment (UE) is provided. The method generally includes selecting, from a plurality of transmission points involved in uplink (UL) coordinated multipoint (CoMP) operations with the UE, a transmission point to associate with for path loss (PL) compensation, and adjusting power of one or more transmissions based on path loss measured based on the selected transmission point.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 2, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Peter Gaal, Wanshi Chen, Stefan Geirhofer, Madhavan Srinivasan Vajapeyam
  • Patent number: 10659968
    Abstract: Embodiments of the present invention disclose a method for performing communication by using an unlicensed spectrum, a device, and a system, which relate to the field of communications technologies, so as to improve efficiency of using an unlicensed spectrum by user equipment. The method includes: obtaining, by a base station eNB, a time resource and/or a frequency resource by contending with another eNB or another system using an unlicensed spectrum; generating, by the base station eNB, information about the time resource and/or the frequency resource according to the time resource and/or the frequency resource; and sending, by the base station eNB, the information about the time resource and/or the frequency resource to user equipment UE by using a broadcast or multicast message, so that the user equipment UE communicates with the base station eNB according to the information about the time resource and/or the frequency resource.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: May 19, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Junren Chang, Li Chai, Jie Ma, Yajuan Li, Bo Lin, Shulan Feng
  • Patent number: 10595285
    Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: March 17, 2020
    Assignee: LG Electronics Inc.
    Inventors: Dongcheol Kim, Hangyu Cho, Yeonghyeon Kwon, Jaehoon Chung
  • Patent number: 10581536
    Abstract: A wireless communicator includes: a signal strength meter configured to display a signal strength of a received signal; and an AGC circuit configured to perform AGC control for controlling an amplitude of the received signal be in a predetermined range, wherein the AGC circuit is further configured to perform switching, based on a predetermined condition, between two values to provide the switched value to the signal strength meter, one of the values being an AGC signal strength value for displaying the signal strength based on the AGC control, and another of the values being an expanded signal strength value for displaying the signal strength for which the AGC control is not operated based on a value obtained by detecting the received signal.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: March 3, 2020
    Assignee: JVC KENWOOD Corporation
    Inventor: Yasunori Naiki
  • Patent number: 10541760
    Abstract: A radio communication apparatus configured to perform frequency conversion on a first transmission signal modulated at a frequency in a specific frequency band into a second transmission signal having a frequency in a transmission frequency band, in which the apparatus includes: a circuit configured to generate a first calibration signal having a frequency higher than a highest frequency in the specific frequency band, and a second calibration signal having a frequency lower than a lowest frequency of the specific frequency band; a circuit configured to add the first and second calibration signals to the first transmission signal; a circuit configured to estimate a phase at a center frequency in the specific frequency band of the first transmission signal, and output a phase correction coefficient corresponding to the estimated phase; and a circuit configured to correct the phase of the first transmission signal, based on the phase correction coefficient.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 21, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Akihiko Komatsuzaki, Shinichiro Kobayashi, Ryo Koizumi, Toshiyuki Takada, Yumihiko Annaka, Hiroshi Yasui
  • Patent number: 10520532
    Abstract: The present invention relates to an apparatus for measuring low frequency noise having shielding characteristics, and enhance the accuracy of measurement of low frequency noise of a sample by blocking the flow of electromagnetic waves in the gap between the chamber and the door.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 31, 2019
    Assignee: KOREA SENSOR LAB CO., LTD.
    Inventor: Soo Min Lee
  • Patent number: 10516863
    Abstract: The present invention is a miniature portable projector device that is compatible with multiple file types and formats, and is small enough to fit on a keychain. It comprises of at least one I/O interface to receive/transfer data to/from a data source. A format processing unit converts the received data stored in a memory into a format adapted to be projected on a surface using the optical projection imaging component, provided at one end of device. Said device also features a fingerprint scanner that allows only the authentic user to unlock the device.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 24, 2019
    Inventor: Bradley Baker
  • Patent number: 10444751
    Abstract: A surveying system having a total station integrated into an unmanned aerial vehicle communicates with a plurality of mobile communication stations that are located on known site coordinates. By locating the mobile communication stations on known coordinates, the location of the aerial vehicle is precisely triangulated and controlled. Construction drawings are loaded into the system, thereby allowing the vehicle to locate itself at specific points designated in the drawings for the marking of on-site construction grid lines.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: October 15, 2019
    Inventors: Jesse Gil, Ronald D. Shaw, Benjamin Bell
  • Patent number: 10429493
    Abstract: A method includes: generating, via a testing signal source, a test transmission signal; receiving the test transmission signal at an input port of a socket device having the input port, an input coupler, a divider, a combiner, an output coupler and an output port; providing, via the input coupler, an input signal based on the test transmission signal; providing, via the divider, portions of the input signal to each of respective inputs of m receivers of a transceiver having n transmitters and the m receivers; combining, via the combiner, signals provided at the respective outputs of the n transmitters into a combined output signal; providing a coupled output signal to the input coupler; providing a measured output signal to the output port; providing, via the output port, the measured output signal to a receiving signal measuring device; and testing, via the receiving signal measuring device, the measured output signal.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 1, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Brian P. Ginsburg, Guor-Chaur Jung
  • Patent number: 10433255
    Abstract: Disclosed is a method and system that may help control when a network will request (and receive) a remaining battery energy level report from a UE. Per the disclosure, a network that has an established radio-link-layer connection with the UE could track an amount of time in which the UE operates in a radio-link-layer connected mode. The network could then determine whether the amount of time in which the UE has operated in the radio-link-layer connected mode has exceeded a predetermined threshold amount of time. And responsive to determining that the amount of time in which the UE has operated in the radio-link-layer connected mode has exceeded the threshold amount of time, the network could cause the UE to report to the network the remaining battery energy level of the UE.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 1, 2019
    Assignee: Sprint Spectrum L.P.
    Inventors: Siddharth S. Oroskar, Jasinder P. Singh
  • Patent number: 10404305
    Abstract: An electronic device is provided that includes an antenna configured to receive a first signal and transmit a second signal. The electronic device also includes a transceiver configured to perform frequency conversion of the first signal and the second signal. The electronic device further includes a coupler path configured to transmit the second signal to the transceiver via a coupler, and a receive path configured to transmit the first signal, obtained from the antenna, to the transceiver. The electronic device also includes a switching unit configured to be connected with the transceiver and switch between the coupler path and the receive path.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 3, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Young Min Lee, Jung Hwan Son, Yu Seon Lee
  • Patent number: 10372434
    Abstract: An apparatus, computer program, and method are provided for communicating an update to a subset of devices. In operation, information is received in association with a plurality of devices that have at least one application installed thereon. Further, an update for the at least one application is identified. Still yet, a subset of the plurality of devices is determined, based on the information. Such update for the at least one application is communicated to the subset of the plurality of devices.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 6, 2019
    Assignee: AMDOCS DEVELOPMENT LIMITED
    Inventors: Christophe Regis Jean-Jacques Michel, Pierre-Erwann Gouesbet, Jean-François Pierre Marie Greffier
  • Patent number: 10320534
    Abstract: An integrated circuit is operable in two modes, including a test mode in which a pattern of variation is injected into a receiver's sampling clock and used to simulate jitter. Adding frequency offset, jitter or both, to this clock can be equivalent to adding jitter of an equal magnitude but opposite sign in a transmitted test signal. In this way, a clock can be produced that simulates timing variations that can be encountered during mission function operation of the device under test, while test input data is applied by local pattern generators or other data sources that, under test conditions, do not, or need not, exhibit such variations.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: June 11, 2019
    Assignee: Rambus Inc.
    Inventors: Srinivasaraman Chandrasekaran, Kunal Desai
  • Patent number: 10314103
    Abstract: Techniques are disclosed for creating and using a pattern of radio resources to be shared in a cell between devices using an enhanced-coverage mode and at least one other category of devices. An example method includes forming (810) a resource pattern, the resource pattern indicating an allocation of first radio resources in a first cell to a first type of wireless device and indicating an allocation of second radio resources in the first cell to a second type of wireless device. The resource pattern is sent (820) to a second network node of the wireless communication system, e.g., a network node serving a neighboring cell, or to at least one wireless device, or to both. The resource pattern may be used in scheduling by the first network node or the second network node, or both.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 4, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Kumar Balachandran, Konstantinos Dimou, Muhammad Kazmi, Anders Wallén
  • Patent number: 10277337
    Abstract: An antenna test method and apparatus are disclosed. The antenna test method includes: A, placing a mobile terminal on a turntable in an anechoic chamber, and connecting the mobile terminal to a base station emulator via an anechoic chamber communication antenna; B, moving by the turntable sequentially to multiple theta and phi angles, transmitting by the base station emulator signals to the mobile terminal via an anechoic chamber measurement antenna, and receiving and decoding by the mobile terminal the signals and transmitting them back to the base station emulator, to obtain the horizontal and vertical polarization data of the anechoic chamber measurement antenna at steps of a first angle; C, performing interpolations to calculate the corresponding data at steps of a second angle as the step converts from the first angle to the second angle, and using the derived data to calculate the Total Isotropic Sensitivity (TIS).
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: April 30, 2019
    Assignee: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.
    Inventor: Jian Bai
  • Patent number: 10277497
    Abstract: A system may include a master test system and a plurality of slave test systems coupled to the master test system and/or each other. The system may include devices under test (DUTs) (also referred to herein as units under test (UUTs)) stored in test slots and coupled to the master test system or specific slave test systems over Ethernet, coaxial, or other cables. Each test slot may include a Faraday cage that shields the contents therein from electromagnetic signals outside the test slot. The master test system and/or the slave test systems may test the DUTs using specific sequences of tests according to testing protocols relevant to those DUTs. One or more test controllers, mobile devices, display devices, and/or input devices may be coupled to the test systems and be used to control specific test protocols performed by the test systems.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: April 30, 2019
    Assignee: Contec, LLC
    Inventors: Rajeev Tiwari, Mrinal Mathur
  • Patent number: 10263869
    Abstract: A network administrator utilizes a user client device to connect to a server within a network and provide a test plan comprises various tests to be performed on pairs of devices having physical connections within the network. The server selects, from the various pairs of devices, a pair of devices that are to be tested. Subsequently, the server transmits to each device of the selected pair of devices, instructions that may cause each device to perform the tests specified within the test plan. Once the tests have been completed, the server obtains the test results from the pair of devices and compiles these results.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: April 16, 2019
    Assignee: Amazon Technologies, Inc.
    Inventor: Kevin Michael Dzierwinski
  • Patent number: 10200877
    Abstract: A cloud-based platform is provided offering large-scale and dynamic data analysis, processing, and exchange for telecommunications network design and deployment. It is configured to accommodate local, regional, and nationwide network planning and management needs. Information relevant to the network and individual design projects is organized with respect to a shared timeline that is shared with all project teams. All on-going and committed planned projects related to network performance are tracked on the shared timeline, with predicted network performance continually and automatically updated at regular intervals.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 5, 2019
    Inventors: Roger Ray Skidmore, Keith John Astoria, Keith Dawson Bray
  • Patent number: 10158553
    Abstract: A system may include a master test system and a plurality of slave test systems coupled to the master test system and/or each other. The system may include devices under test (DUTs) (also referred to herein as units under test (UUTs)) stored in test slots and coupled to the master test system or specific slave test systems over Ethernet, coaxial, or other cables. Each test slot may include a Faraday cage that shields the contents therein from electromagnetic signals outside the test slot. The master test system and/or the slave test systems may test the DUTs using specific sequences of tests according to testing protocols relevant to those DUTs. One or more test controllers, mobile devices, display devices, and/or input devices may be coupled to the test systems and be used to control specific test protocols performed by the test systems.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 18, 2018
    Assignee: Contec, LLC
    Inventors: Rajeev Tiwari, Mrinal Mathur
  • Patent number: 10149191
    Abstract: A communication control device includes an acquisition unit configured to acquire measurement related information related to execution of measurement by a terminal device in an extension band, which is other than a band of a predetermined bandwidth in frequency bands allocated to a service provider; and a control unit configured to perform control related to the measurement by the terminal device in the extension band, on the basis of the measurement related information.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: December 4, 2018
    Assignee: Sony Corporation
    Inventor: Hiroaki Takano
  • Patent number: 10122442
    Abstract: A test and measurement system is disclosed. The system includes a data store with a data description of a received in-phase (I) quadrature (Q) symbol. The received IQ symbol is received from a transmitter associated with impairments, and the received IQ symbol is modified from a corresponding ideal IQ symbol by the impairments. A computer processor is coupled to the data store and generates an Error-Vector Magnitude (EVM) function that describes a difference between the received IQ symbol and the ideal IQ symbol in terms of a plurality of impairment parameters indicating the impairments. The processor then determines values for the impairment parameters that quantify the impairments. The values are determined by selection of values for the impairment parameters that minimize the EVM function.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: November 6, 2018
    Assignee: Tektronix, Inc.
    Inventors: Steven A. Jacobs, Robert A. Marsland, Jr.
  • Patent number: 10104582
    Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: October 16, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Takahito Yoshizawa, Indermeet Singh Gandhi, Swaminathan A. Anantha, Yuyong Zhang
  • Patent number: 10097337
    Abstract: A method and device are described that may be implemented by a user equipment (UE) that established a first connection to a first network component, the user equipment configured to establish a second connection with a second network component, the user equipment configured for a carrier aggregation functionality, the first network component serving as a primary serving cell (PCell) and the second network component serving as a secondary serving cell (SCell). The method may include determining a cycle comprising a first time when a SCell measurement is performed and a remainder second time, when the cumulative first and second times is less than a threshold cycle time, determining an interruption opportunity based on activity between the UE and the PCell and when the interruption opportunity is determined, deactivating a radio frequency (RF) chain associated with the SCell during the second time.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 9, 2018
    Assignee: APPLE INC.
    Inventors: Zhu Ji, Beibei Wang, Johnson O. Sebeni
  • Patent number: 10097018
    Abstract: A device and a method are provided. In a terminal capable of at least one of a wireless charging function and a near field communication (NFC) function, the device displays operation states of the functions via an e-skin unit. Wireless charging efficiency, a charging state, and a communication state may be selectively or totally displayed to a user.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: October 9, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Dong Chan Park, Do Youb Kwon
  • Patent number: 10091698
    Abstract: An embodiment of the present invention provides a handover method, and embodiments of the present invention further provide a coordinator, a serving node, a target node, and a corresponding communications system. The method includes acquiring measurement results of a plurality of neighboring cells of a serving cell where a user equipment UE is located; acquiring information reflecting a load condition of at least one neighboring cell among the plurality of neighboring cells; and performing a handover decision according to the measurement results of the plurality of neighboring cells and the information reflecting the load condition of the at least one neighboring cell among the plurality of neighboring cells.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 2, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Jing Han, Jiandong Jin
  • Patent number: 9980318
    Abstract: Embodiments described herein provide for a distributed antenna system (DAS) including a host unit and a plurality of active antenna units (AAUs). The host unit is configured to send management information to the one or more RAN nodes. The one or more RAN nodes are configured to manage the RF signals based on the management information.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: May 22, 2018
    Assignee: CommScope Technologies LLC
    Inventors: Lance K. Uyehara, Boris Golubovic
  • Patent number: 9918242
    Abstract: A dynamic channel selection approach for wireless communication networks is provided by measuring an ineffective communication metric on a currently-used channel. The network can switch channels if the ineffective communication metric from a device on the network satisfies a channel selection condition. To change the wireless communication network to the new channel, all network devices in the wireless communication network are instructed to switch to the new channel. As network communications start on the new channel, the ineffective communication metric measurements begin again on the new channel. Communications on the new channel continue until the channel selection condition is satisfied on the new channel, at which point another random selection of a channel is executed. The process continues in such iterations during the operation of the network and its network devices.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: March 13, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bozidar Radunovic, Ramachandran Ramjee, Krishna Kant Chintalapudi, Deeparnab Chakrabarty, Apurv Bhartia
  • Patent number: 9900838
    Abstract: A method and system for selecting an optimal DRX configuration for a User Equipment (UE) in a communication network is provided. An expression for expected maximum delay experienced by a packet arriving during the off-duration is derived for any packet arrival process (either known arrival process or unknown arrival process). Further, the method for computing the active duration in any DRX cycle with the expected delay to be less than a given threshold by considering all the timers in the communication network is provided. The DRX cycle configuration with minimum active duration is selected as optimal DRX configuration by the UE and UE informs the optimal DRX configuration to the network.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Aravind Surapura Chakrapani, Karthik Rangaraj Manavalan
  • Patent number: 9876588
    Abstract: Radio-frequency performance of wireless communications circuitry on an electronic device under test (DUT) may be tested without external test equipment such as signal analyzers or signal generators. A first DUT may transmit test signals to a second DUT. External attenuator circuitry interposed between the DUTs may attenuate the test signals to desired power levels. The second DUT may characterize and/or calibrate receiver performance by generating wireless performance metric data based on the attenuated test signals. A single DUT may transmit test signals to itself via corresponding transmit and receive ports coupled together through the attenuator. The DUT may generate performance metric data based on the test signals. The DUT may include feedback receiver circuitry coupled to an output of a transmitter via a feedback path and may characterize and/or calibrate transmit performance using test signals transmitted by the transmitter and received by the feedback receiver.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: January 23, 2018
    Assignee: Apple Inc.
    Inventors: Chao Yuan, Wassim El-Hassan, Vishwanath Venkataraman
  • Patent number: 9859949
    Abstract: Blind interference cancellation is described for wireless networks in which a subject base station or cancellation apparatus obtains semi-static information for at least one of its neighboring cells. The base station measures the noise level of each of the neighboring cells based on samples it takes of uplink transmissions in each of the neighboring cells. The neighboring cells are then ranked for interference cancellation based on their relative noise levels. The base station performs discontinuous transmission (DTX) detection to identify at least one interfering user equipment (UE) in the neighboring cell and cancels interference attributable to those identified interfering UEs. The DTX detection and cancellation are then repeated for the remaining neighboring cells in the order they are ranked.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 2, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Zhifei Fan, Renqiu Wang, Hao Xu
  • Patent number: 9854450
    Abstract: A method and corresponding apparatus configured to collect raw data from a plurality of wireless devices. The raw data includes activity recorded when the wireless devices are at a selected topographic region. The raw data is combined to produce aggregated data representative of the activities of the individual wireless devices. Either the aggregated data or the raw data are selected for analysis depending on whether the raw data meets a threshold activity or subscriber density level. The selected data are analyzed to identify activity patterns of users of the wireless devices.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: December 26, 2017
    Assignee: Sybase 365, LLC.
    Inventors: Khalid Ata Atiyah Abdullah, Arturo Buzzalino, Steven Charles Garcia, Vaibhav Vohra, Kimmo Olavi Vuori
  • Patent number: 9854561
    Abstract: [Object] To achieve more flexible DRX. [Solution] Provided is a communication control apparatus including: a selection unit configured to select a paging segment from a plurality of paging segments that are repeatedly present during a period having a length of a first discontinuous reception (DRX) cycle for a terminal apparatus; and a control unit configured to perform paging for the terminal apparatus during the selected paging segment if performing the paging. The length of the first DRX cycle is not divisible by a length of each of the plurality of paging segments.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 26, 2017
    Assignee: SONY CORPORATION
    Inventor: Atsushi Yoshizawa
  • Patent number: 9847841
    Abstract: A coherent optical receiver that is capable of obtaining separate estimates of the I/Q phase imbalances caused by the front-end circuits of the receiver and transmitter. In an example embodiment, the receiver's I/Q imbalance is estimated using equalization coefficients of a first digital equalizer located upstream from the carrier-recovery module in the train of digital-signal processing implemented at the receiver, whereas the transmitter's I/Q imbalance is estimated using equalization coefficients of a second digital equalizer located downstream from the carrier-recovery module. The receiver DSP can then use the first estimate to carry out signal processing that reduces adverse effects of the receiver's I/Q imbalance on data recovery at the receiver. The receiver can also provide the estimate of the transmitter's I/Q phase imbalance to the transmitter, which can then perform digital signal pre-distortion directed at compensating that I/Q imbalance at the transmitter.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 19, 2017
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Noriaki Kaneda
  • Patent number: 9794914
    Abstract: A method and an apparatus are provided for receiving information by a terminal in a wireless communication system. The method includes transmitting, to a base station, a request message including a preamble; receiving, from the base station, a response message including uplink resource information determined based on the preamble; determining at least one of downlink channel information and uplink transmission capability corresponding to a specific uplink transmission; and transmitting, if an information request message is received from the base station, the at least one of the downlink channel information and the uplink transmission capability to the base station.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: October 17, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kyeong In Jeong, Gert-Jan Van Lieshout
  • Patent number: 9780866
    Abstract: A configurable RF transmit/receive (TX/RX) multiplexer, which includes a group of RF TX bandpass filters, a group of RF TX switching elements, and a group of RF RX bandpass filters; is disclosed. Each of the group of RF RX bandpass filters is coupled to a first common connection node. Each of the group of RF TX switching elements is coupled between a corresponding one of the group of RF TX bandpass filters and the first common connection node, which is coupled to a first RF antenna.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 3, 2017
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 9774466
    Abstract: A node within a wireless mesh network is configured to forward a high-priority message to adjacent nodes in the wireless mesh network by either (i) transmitting the message during successive timeslots to the largest subset of nodes capable of receiving transmissions during each timeslot, or (ii) transmitting the message on each different channel during the timeslot when the largest subset of nodes are capable of receiving transmissions on each of those channels.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: September 26, 2017
    Assignee: SILVER SPRING NETWORKS, INC.
    Inventors: Jana Van Gruenen, Sterling Hughes, Peter Hunt, Wiliam E. San Filippo, III
  • Patent number: 9715018
    Abstract: A GPS OTA testing method and system is provided. The GPS OTA testing method comprises: placing a terminal under test on a rotating table in a darkroom, and generating a GPS signal by a GPS satellite signal generator in the darkroom; acquiring the satellite signal strength at each of the angles and in each of the polarization directions, and forming a signal strength direction map; searching for an optimal angle and an optimal polarization direction and acquiring a sensitivity corresponding to the optical angle and the optimal polarization direction; and acquiring a sensitivity at each of the angles and in each of the polarization directions according to the sensitivity corresponding to the optimal angle and the optimal polarization direction and according to the signal strength direction map and integrating the sensitivities to acquire an antenna signal strength.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: July 25, 2017
    Assignee: Huizhou TCL Mobile Communication Co., Ltd
    Inventor: Jian Bai
  • Patent number: 9713105
    Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 18, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Bum Kim, Soeng Hun Kim, Gert-Jan Van Lieshout, Kyeong In Jeong
  • Patent number: 9706473
    Abstract: Methods and apparatuses are provided for mitigating interference among access points, and/or devices communicating therewith, in unplanned network deployments. Based on determining that one or more served devices potentially interfere with one or more access points, an inter-frequency handover (IFHO) threshold or data rate can be adjusted for the device to cause IFHO or reduce occurrence of interference, and/or a coverage area can be modified so the device can communicate with one or more other access points to mitigate potential interference. Based on determining interference from one or more devices served by other access points, an access point can switch operating modes to a hybrid or open access point to allow the one or more devices to handover to the access point, and/or can boost downlink transmit power to cause the one or more devices to perform IFHO from the other access points to mitigate potential interference.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: July 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Farhad Meshkati, Yan Zhou, Vinay Chande, Mehmet Yavuz
  • Patent number: 9699703
    Abstract: A radio communication apparatus including: an antenna configured to receive a frame including reference signals and including other signals corresponding to radio resources to which channels are mapped, and a processor configured to acquire degree of usage of the radio resource, to calculate a reception quality of the reference signals, and to adjust the reception quality in accordance with the degree.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: July 4, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Daisuke Ogawa, Takashi Dateki, Koji Matsuyama
  • Patent number: 9680843
    Abstract: A request is received over a network to resolve a problem relating to a networked user device. The request is accepted in order to provide user service. Based on the request, one of multiple available diagnostic algorithms is selected to analyze user data related to a user's account to identify symptoms of the problem and diagnose a cause of the symptoms identified.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: June 13, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Ilona Murynets, Jeffrey E. Bickford, Gustavo De Los Reyes, Ramesh Subbaraman, Wei Wang
  • Patent number: 9681400
    Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: June 13, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Bum Kim, Soeng Hun Kim, Gert-Jan Van Lieshout, Kyeong In Jeong
  • Patent number: RE47357
    Abstract: Embodiments of the present invention provide improved systems and methods for adjusting system tests based on detected interference. In one embodiment, a system comprises a host unit; a system test controller to control the performance of system tests, wherein a system test to detect the reception of an interfering signal comprises disabling the generation of tones for transmission through the communication system. The system also comprises multiple remote antenna units communicatively coupled to the system test controller to transmit signals to multiple wireless terminals, wherein a remote antenna unit comprises: an antenna; a transceiver, coupled to the antenna; a signal detector that measures reverse and forward power of signals transmitted to and received from the antenna; and a microcontroller to control the antenna unit, wherein upon receiving a command to perform interference testing, the microcontroller adjusts a subsequent test based on measurements of the reverse power by the signal detector.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 16, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Scott Stratford
  • Patent number: RE48113
    Abstract: Embodiments of the present invention provide improved systems and methods for adjusting system tests based on detected interference. In one embodiment, a system comprises a host unit; a system test controller to control the performance of system tests, wherein a system test to detect the reception of an interfering signal comprises disabling the generation of tones for transmission through the communication system. The system also comprises multiple remote antenna units communicatively coupled to the system test controller to transmit signals to multiple wireless terminals, wherein a remote antenna unit comprises: an antenna; a transceiver, coupled to the antenna; a signal detector that measures reverse and forward power of signals transmitted to and received from the antenna; and a microcontroller to control the antenna unit, wherein upon receiving a command to perform interference testing, the microcontroller adjusts a subsequent test based on measurements of the reverse power by the signal detector.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 21, 2020
    Assignee: CommScope Technologies LLC
    Inventor: Scott B. Stratford