Measuring, Testing, Or Monitoring Of Transmitter Patents (Class 455/115.1)
  • Patent number: 10313030
    Abstract: Certain aspects are directed to a configuration sub-system for telecommunication systems. The configuration sub-system can include a test signal generator, a power measurement device, at least one additional power measurement device, and a controller. The test signal generator can be integrated into components of a telecommunication system. The test signal generator can provide a test signal to a signal path of the telecommunication system. The power measurement device and the additional power measurement device can respectively be integrated into different components of the telecommunication system. The power measurement device and the additional power measurement device can respectively measure the power of the test signal at different measurement points in the signal path. The controller can normalize signals transmitted via the telecommunication system by adjusting a path gain for the signal path based on measurements from the power measurement device and the additional power measurement device.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 4, 2019
    Assignee: Andrew Wireless Systems GmbH
    Inventors: Matthew Thomas Melester, Stefan Eisenwinter, Ahmed H. Hmimy, Massimiliano Mini, Joerg Stefanik, Alfons Dussmann
  • Patent number: 10305567
    Abstract: An embodiment method for beam-related information and channel state information feedback includes receiving first analog beamformed reference signals; transmitting a first report indicating a set of selected analog beamformed reference signals and a transmission rank that jointly maximize a first performance criterion for subsequent transmissions by a transmitter that transmitted the first analog beamformed reference signals; receiving second analog beamformed reference signals maximized in accordance with the set of selected analog beamformed reference signals and the transmission rank; and transmitting a second report, in accordance with the second analog beamformed reference signals, indicating a channel quality indicator and a precoding matrix indicator that maximize a second performance criterion for subsequent transmissions by the transmitter that transmitted the first analog beamformed reference signals and the second analog beamformed reference signals.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 28, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Diana Maamari, Hao Zhou, Qian Cheng, Weimin Xiao
  • Patent number: 10282334
    Abstract: A security system having a control unit in communication with detection devices and notification systems to provide messages. Methods for employing a control unit are also provided herein.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 7, 2019
    Assignee: Response Technologies, Ltd.
    Inventors: Steven P. Verdino, Andrew S. Morrison, Roy J. Cooley, Lawrence E. Wood
  • Patent number: 10271292
    Abstract: The invention relates to methods for informing an eNodeB on the transmit power status of a user equipment in a mobile communication system using component carrier (CC) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the eNodeB to recognize the power usage status of a UE in a communication system using carrier aggregation. The UE indicates to the eNodeB, when the UE is close to using its total maximum UE transmit power or when it has exceeded same. This is achieved by the UE including indicator(s) and/or new MAC CEs to one or more protocol data units transmitted on respective component carriers within a single sub-frame that is providing the eNodeB with power status information. The MAC CEs may report a per-UE power headroom. Alternatively, the MAC CEs may report per-CC power headrooms and/or power reductions applied to the respective uplink CCs.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 23, 2019
    Assignee: Sun Patent Trust
    Inventors: Martin Feuersaenger, Joachim Loehr, Christian Wengerter
  • Patent number: 10263714
    Abstract: According to one embodiment, a mobile terminal testing device which tests a mobile terminal including a plurality of transmitting antennas by transmitting/receiving radio signals between the mobile terminal testing device and the mobile terminal, includes a radio signal processing module configured to transmit and receive radio signals to and from the mobile terminal and a controller configured to cause the mobile terminal to switch one from another among the plurality of transmitting antennas by a predetermined radio signal transmitted to the mobile terminal via the radio signal processing module.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 16, 2019
    Assignee: Anritsu Corporation
    Inventors: Kazunori Aoki, Takayuki Awano, Yuki Higuchi
  • Patent number: 10257721
    Abstract: In a wireless network formed of short range femtocells, each femtocell provides wireless connectivity to user equipment devices and the user equipment can move around the topographical range covered by the network by handing over to a neighboring femtocell. Due to the limited range of a femtocell, there will be coverage gaps. If the device moves to a location not covered by a femtocell, it will try to connect to a macrocell of a different wide area cellular network until it is within range of another femtocell network. To minimize handovers from the femtocell network to the macrocell network, each femtocell is arranged to analyze historic log data to detect coverage gaps experienced by the user equipment as it moves along a user equipment route and try to close the gaps by increasing the coverage range of femtocells on either side of the coverage gap to close the gap.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 9, 2019
    Assignee: British Telecommunications Public Limited Company
    Inventors: Mark Shackleton, Fabrice Saffre, Anvar Tukmanov, Richard Mackenzie
  • Patent number: 10250342
    Abstract: In a measuring system in which a wireless terminal that is a measurement target is rotated centering around the standard point O at each rotation angle of the wireless terminal, and thus a reception performance is acquired, when the reception performance is obtained, a power of a measurement signal that is supplied to the measurement antenna is corrected for a propagation loss error and a gain error that occur in association with rotation of the wireless terminal, angle correction for an angle error that occurs in association with the rotation of the wireless terminal is performed on the reception performance at each rotation angle, which is acquired with the measure signal having the corrected power, and thus the reception performance in a case where it is assumed that a terminal antenna of the wireless terminal is rotated at a position of a standard points is obtained.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 2, 2019
    Assignee: ANRITSU CORPORATION
    Inventors: Tomonori Morita, Aya Yamamoto
  • Patent number: 10211879
    Abstract: A front-end module includes a duplexer, a band pass filter, and a terminating circuit element. A first signal path connects an output terminal of a power amplifier and a transmit node of the duplexer. The band pass filter is disposed on a second signal path between a branch point and a ground. The second signal path branches off from the first signal path at the branch point. The band pass filter has frequency characteristics in which, among frequency components of a transmit signal output from the power amplifier, frequency components that overlap at least part of the pass band of a receive filter of the duplexer are allowed to pass through the band pass filter. The terminating circuit element is disposed on the second signal path between the band pass filter and the ground. The terminating circuit element attenuates a transmit signal passing through the band pass filter.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: February 19, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Abiru, Koji Yamashita, Takeshi Kogure
  • Patent number: 10205346
    Abstract: A wireless power receiver, configured to receive power from a wireless power outlet and to communicate with a host for providing electrical power thereto, is provided comprising a secondary inductive coil configured to receive power from a primary coil of the wireless power outlet, and a host control interface configured to facilitate communication between the wireless power receiver and the host. The host control interface comprises contacts, one or more information-carrying contacts configured to conduct at least one of a clock and a data signal between the wireless power receiver and the host, supply input and power supply ground contacts configured to cooperate to provide current between the wireless power receiver and the host, an interrupt-signal contact configured to carry an INTERRUPT signal from the wireless power receiver and the host, and an enable-signal contact configured to carry an ENABLE signal from the host to the wireless power receiver.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: February 12, 2019
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Elieser Mach, Oz Moshkovich, Itay Sherman
  • Patent number: 10193666
    Abstract: The present disclosure discloses a method, an AP, a server, and an STA used for coordinated transmission. The method includes: an AP receives an uplink preamble training sequence transmitted by an STA; the AP determines uplink quality information according to the uplink preamble training sequence; and the AP transmits the uplink quality information to a server, to enable the server to determine a downlink coordinated transmission set according to the uplink quality information. The method, the AP, the server, and the STA used for coordinated transmission according to embodiments of the present disclosure can realize coordinated transmission among multiple APs, and thus data throughput can be improved.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 29, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yongming Liang, Jiayin Zhang, Yi Luo
  • Patent number: 10193602
    Abstract: In certain aspects, a method for communications comprises outputting a first portion of a signal to a first one of a plurality of RF modules for transmission, determining a throughput of the first one of the plurality of RF modules during thermal throttling of the first one of the plurality of RF modules, comparing the determined throughput of the first one of the plurality of RF modules with a throughput of a second one of the plurality of RF modules, and outputting a second portion of the signal to the second one of the plurality of RF modules for transmission if the throughput of the second one of the plurality of RF modules is higher than the determined throughput of the first one of the plurality of RF modules.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: January 29, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Javier Frydman, Ron Gutierrez, Nissan Aloni
  • Patent number: 10181915
    Abstract: A local oscillator signal is output from a local oscillator using a reference signal produced by a reference signal generator. Similarly, a test intermediate frequency signal is output from a source oscillator using the reference signal. The test intermediate frequency signal is converted to a test radio frequency signal, with an up-converter using the local oscillator signal. The test radio frequency signal is supplied to a device under test, and an output radio frequency signal is received back from the device under test. The output radio frequency signal is converted to an output intermediate frequency signal, with a down-converter using the local oscillator signal. The output intermediate frequency signal is converted to a digital output signal, with a synchronized digitizer using the reference signal. Different phase signals of the output intermediate frequency signal are captured using the synchronized digitizer as the device under test is operated during a testing cycle.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 15, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Mustapha Slamani, Timothy M. Platt, Thomas Moon
  • Patent number: 10181911
    Abstract: Certain aspects are directed to a configuration sub-system for telecommunication systems. The configuration sub-system can include a test signal generator, a power measurement device, at least one additional power measurement device, and a controller. The test signal generator can be integrated into components of a telecommunication system. The test signal generator can provide a test signal to a signal path of the telecommunication system. The power measurement device and the additional power measurement device can respectively be integrated into different components of the telecommunication system. The power measurement device and the additional power measurement device can respectively measure the power of the test signal at different measurement points in the signal path. The controller can normalize signals transmitted via the telecommunication system by adjusting a path gain for the signal path based on measurements from the power measurement device and the additional power measurement device.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 15, 2019
    Assignee: Andrew Wireless Systems GmbH
    Inventors: Matthew Thomas Melester, Stefan Eisenwinter, Ahmed H. Hmimy, Massimiliano Mini, Joerg Stefanik, Alfons Dussmann
  • Patent number: 10177445
    Abstract: Communication structure for communication with a mobile communication apparatus includes a signal conduction module having an array of antenna units; and a signal transceiving module including a signal transceiving unit, control unit, and power control unit. The control unit generates a driving signal to the power control unit, which generates a voltage to the signal transceiving unit; the signal transceiving unit generates a corresponding spectrum signal, transferred by the signal conduction module. The mobile communication apparatus receives the spectrum signal and transfers a first feedback signal.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: January 8, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jiin-An Guu, Ching-Chyuan Lin, Chien-Te Yu
  • Patent number: 10177817
    Abstract: A non-contact power supply system is provided employing an electric power transmitting device which can improve the transmission efficiency of electric power, suppressing the circuit scale. The electric power transmitting device is configured with a resonance circuit including a resonance capacity and a resonance coil acting as a transmitting antenna, and a first coil arranged magnetically coupled with the resonance coil. The electric power transmitting device transmits electric power in a non-contact manner using resonant coupling of the resonance circuit. When transmitting the electric power, the electric power transmitting device controls the first coil to connect or disconnect both ends thereof so as to bring a resonance frequency of the resonance circuit close to a frequency of an electric power transmission signal outputted as the electric power to be transmitted.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: January 8, 2019
    Assignee: Renesas Electronics Corporation
    Inventor: Katsuei Ichikawa
  • Patent number: 10177731
    Abstract: A system that incorporates teachings of the present disclosure can include, for example, an apparatus having a matching network adapted to reduce a magnitude of a signal reflection at a port of the matching network. The matching network can have one or more controllable variable reactive elements. A controller can be adapted to determine reflection coefficient information from incident and reflected waves sampled at the port of the matching network, and follow at least one cycle of a coarse tune process for generating one or more control signals to tune one or more reactances of the one or more controllable variable reactive elements. Additional embodiments are disclosed.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 8, 2019
    Assignee: BlackBerry Limited
    Inventors: William E. McKinzie, III, Heinz Bachmann, Greg Mendolia
  • Patent number: 10162032
    Abstract: In a magnetic resonance apparatus and an operating method therefor in which magnetic resonance data are acquired from a patient, a measurement process is used in which a number of magnetic resonance sequences are carried out sequentially, and a maximum measurement time parameter, describing a maximum possible measurement time for undershooting a threshold value for the overall energy input into the patient during the measurement process, is established, taking into account other known recording parameters of the measurement process. The maximum measurement time parameter is used to restrict the ability of an operator to set a measurement time parameter describing the measurement time as a recording parameter, and/or is used as the measurement time parameter.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 25, 2018
    Assignee: Siemens Aktiengesellshaft
    Inventors: Wolfgang Bielmeier, Miriam Keil, Joerg Roland, Stephan Stoecker
  • Patent number: 10141980
    Abstract: The wireless power transmission system includes a power supply device and a power receiving device. The power supply device includes a power supply coil, an inverter driving the power supply coil and a radio and a first processor. The power receiving device includes a resonant circuit wirelessly receiving electric power from the power supply coil, a rectifying circuit DB outputting a rectified voltage, a load, a radio unit and a second processor. The second processor transmits a communication packet in a predetermined period of time, the communication packet including information about a rectified voltage value and a circulation index value indicating transmission sequence. The first processor outputs a signal according to the rectified voltage value included in the communication packet every time the first processor receives the communication packet without delay.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: November 27, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Hidetoshi Hijikata
  • Patent number: 10143031
    Abstract: Detection of network transactions or keepalives for maintaining long lived connections are disclosed. A keepalive detector can detect keepalive traffic based on keepalive parameters determined from an analysis of socket level network communication log data that record data transfer events including data sent from mobile applications or clients on a mobile device and data received by the mobile applications or clients on the mobile device, timing characteristics, protocol types, etc. Various statistical analyses can be performed on the network communication data to detect keepalives, taking into account variability in intervals of the data transfer events and sizes of data sent and received on each event. The keepalive detector can also detect keepalives from stream data on a mobile device by analyzing socket level communication messages including timing characteristics and amount of data transferred to detect keepalives and report keepalives using a data structure.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 27, 2018
    Assignee: Seven Networks, LLC
    Inventors: Ari Backholm, Michael Fleming, Andrii Kokhanovskyi, Sungwook Yoon
  • Patent number: 10142036
    Abstract: Certain aspects are directed to a configuration sub-system for telecommunication systems. The configuration sub-system can include a test signal generator, a power measurement device, at least one additional power measurement device, and a controller. The test signal generator can be integrated into components of a telecommunication system. The test signal generator can provide a test signal to a signal path of the telecommunication system. The power measurement device and the additional power measurement device can respectively be integrated into different components of the telecommunication system. The power measurement device and the additional power measurement device can respectively measure the power of the test signal at different measurement points in the signal path. The controller can normalize signals transmitted via the telecommunication system by adjusting a path gain for the signal path based on measurements from the power measurement device and the additional power measurement device.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 27, 2018
    Assignee: Andrew Wireless Systems GmbH
    Inventors: Matthew Thomas Melester, Stefan Eisenwinter, Ahmed H. Hmimy, Massimiliano Mini, Joerg Stefanik, Alfons Dussmann
  • Patent number: 10116369
    Abstract: A control unit of a communication device provides multicast precoding information from at least first beamforming information descriptive for a first transmission channel and second beamforming information descriptive for a second transmission channel. A precoder unit beamforms at least one signal using the multicast precoding information to obtain at least two precoded signals. A transmitter circuit which is electrically coupled to the precoder unit multicasts transmission signals through the at least first and a second transmission channels, wherein the transmission signals are derived from the precoded signals.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 30, 2018
    Assignee: SONY CORPORATION
    Inventors: Daniel Schneider, Andreas Schwager
  • Patent number: 10097215
    Abstract: A transmission power control method and an electronic device capable of adjusting a bias of a power amplifier are provided. The electronic device includes: a temperature sensor; a power amplifier (PA); and a controller configured to monitor signals from the temperature sensor, determine a bias value for the PA, based on the monitored signals, and control the PA to amplify a signal for transmission based on the determined bias value.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 9, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seongjun Song, Kyunghwan Jo, Youngseok Song, Sungchul Park
  • Patent number: 10075202
    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 11, 2018
    Assignee: MEDIATEK INC.
    Inventors: Ming-Chou Wu, Dimitris Nalbantis, Qiang Zhou, Bernard Mark Tenbroek, Ting-Hsuan Kuo
  • Patent number: 10056875
    Abstract: A radio frequency front end of a user equipment for reducing power consumption includes a receive chain having a first low noise amplifier stage, a transmit chain including a first power amplifier stage, a transmit bypass path, a receive bypass path and a time division duplex switch. The transmit bypass path is selectively coupled to a transmit signal path at a first intermediate point of the transmit chain, prior to the first power amplifier stage. The receive bypass path is selectively coupled to a receive signal path at a first intermediate point of the receive chain after the first low noise amplifier stage. The time division duplex switch is selectively coupled to an antenna, the transmit bypass path, the receive bypass path, the first power amplifier stage and the first low noise amplifier stage.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: August 21, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Steve Andre Beaudin, Moshe Meir, Ramakrishna Sekhar Narayanaswami, Eyal Hochdorf
  • Patent number: 10044819
    Abstract: A method and system for improving network delivery is provided. The method includes receiving an Internet based event for a user. The Internet based event is associated with user attributes, of the user, retrieved from a specialized network and it is determined that the user is associated with the Internet based event. A functionality status of a mobile hardware device of the user is determined and current parameters of the user and current characteristics of the user are analyzed. Resulting network based delivery options associated with the Internet based event for the user are determined.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: August 7, 2018
    Assignee: International Business Machines Corporation
    Inventor: Anurag Srivastava
  • Patent number: 10039069
    Abstract: A communication system, a base station, a user equipment (UE), and a timing synchronization method for the base station thereof are provided. The communication system includes a first base station, a second base station and the user equipment. The UE is located within coverage of the first base station and the second base station. The first base station and the second base station respectively measure signal stability of the user equipment so that the second base station selects the user equipment based on the measurements for the stability of the signals. The first base station computes a first timing error for transmitting or receiving message between the first base station and the user equipment then transmits the first timing error to the second base station. The second base station adjusts a timing difference between the first base station and the second base station through the first timing error.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 31, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Chung-Lai Lee, Chia-Lung Liu
  • Patent number: 10021652
    Abstract: A remote antenna system is provided. The remote antenna system comprises an antenna controller circuit and a remote antenna circuit coupled to the antenna controller circuit by a cable. The remote antenna system further comprises a bidirectional data signal path for carrying transmit and received data signals between the antenna controller circuit and the remote antenna circuit; and a control path for carrying control information between the antenna controller circuit and the remote antenna circuit. The control path is a bidirectional control path. The control path comprises a transmit circuit comprising an input to receive control information and configured to convert the control information into a series of pulses; and a receive circuit comprising a comparator circuit configure to receive the series of pulses and reconstruct them to the control signal.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 10, 2018
    Assignee: NXP B.V.
    Inventors: Kai Peter Ludwig Gossner, Pieter Lok
  • Patent number: 9980206
    Abstract: In order to shorten the time in which an initial connection is established when switching directivity and then performing the initial connection, a frame timing control unit sets, until detection of an RACH signal, a transmission timing of a transmission frame for transmitting a search signal and a broadcast signal and also sets a reception-start timing for starting the reception of the corresponding RACH signal. A search/broadcast signal generation unit generates the broadcast signal and the search signal including reception-timing information. A beam directivity control unit sets, for a predetermined time starting from the reception-start timing, a directivity pattern such that the directivity is in the same direction as the directivity pattern for the corresponding transmission-timing information, whereby the beam directivity control unit controls a beam directivity operation unit.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 22, 2018
    Assignee: PANASONIC CORPORATION
    Inventors: Shozo Okasaka, Takayuki Sotoyama, Seigo Nakao
  • Patent number: 9954662
    Abstract: A board includes: a baseband unit, multiple transmitters, multiple receivers, a multi-antenna array, a correction transceiver, a correction calculation unit, a bidirectional coupler, and a combiner-splitter. The bidirectional coupler is configured to couple radio frequency signals output by the multiple transmitters and then transmit the coupled radio frequency signals to the combiner-splitter, and to couple receiver correction reference signals obtained by performing division by the combiner-splitter and then send the coupled receiver correction reference signals to the multiple receivers; and the combiner-splitter is configured to combine transmitter radio frequency signals coupled by the bidirectional coupler and then transmit the combined transmitter radio frequency signals to the correction transceiver, and to divide a receiver correction reference signal sent by the correction transceiver and then send receiver correction reference signals obtained by performing division to the coupler.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 24, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bin Wang, Yuqing Zhao, Huailin Wen
  • Patent number: 9935833
    Abstract: Methods and apparatus for determining a desired or optimal installation configuration for one or more wireless interface devices within a premises. In one embodiment, a network entity collects information relating to the type of services required and generates a customer profile. The customer profile is then used to determine a number and type of wireless interface devices required. In one variant, a device chart is given which lists a plurality of combinations of categories of service and a respective plurality of device combinations needed to provide optimal service thereto. The device chart is consulted to arrive at an appropriate installation order, which is submitted for premises installation.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: April 3, 2018
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventor: Bryan McAllister
  • Patent number: 9912392
    Abstract: The present invention relates to a wireless communication system. A method for a terminal for transmitting channel state information (CSI) in a wireless communication system according to an embodiment of the present invention comprises the steps of: in a reporting mode for a four-antenna port, joint-encoding a rank indicator (RI) and a first precoding matrix indicator (PMI) into a single encoding value; and transmitting channel state information comprising the encoding value, wherein if RI is 1, then a codebook index may have the same value as the encoding value, and if RI is 2, then the codebook index may be less than the encoding value by 8.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: March 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungtae Kim, Hanjun Park
  • Patent number: 9859996
    Abstract: A system and method for testing an adaptive RF system in an emulated RF environment using a feedback control module to efficiently and accurately evaluate the performance of the RF system under test in the search space.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: January 2, 2018
    Assignee: Echo Ridge LLC
    Inventors: Joseph P. Kennedy, John P. Carlson
  • Patent number: 9853608
    Abstract: Disclosed is an envelope tracking (ET) system having a transmit (TX) section, a power amplifier (PA), a fast switched-mode power supply (Fast SMPS), and control circuitry. The TX section receives an input signal and provides a modulated signal to the PA. The TX section also generates an ET signal based on a modulation envelope of the modulated signal. The TX section provides an envelope control (EC) signal based on the ET signal to modulate a supply signal provided to the PA by the Fast SMPS. The control circuitry provides a transmit TX gain signal and an ET gain signal to the TX section based on a PA temperature signal, a TX temperature signal, a target power signal, a measured power signal. The control circuitry is configured to maintain the efficiency and linearity of the PA over a wide operating temperature range.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: December 26, 2017
    Assignee: Qorvo US, Inc.
    Inventors: James M. Retz, Jeff Kaminski
  • Patent number: 9854524
    Abstract: Briefly, in accordance with one or more embodiments, a base transceiver station having a first set of antennas and a second set of antennas geographically separated from the first set of antennas transmits a reference signal to a first device, and receives feedback from the first device. The feedback represents information that can be used to construct a weight adjustment vector. The base transceiver station selects a precoding vector from a codebook based at least in part on the feedback received from the first device, calculates the weight adjustment vector based at least in part on the feedback, and applies the weight adjustment vector to the selected precoding vector to provide an adjusted precoding vector. The base transceiver station then may transmit data to the first device using the adjusted precoding vector.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 26, 2017
    Assignee: Intel Corporation
    Inventors: Xiaogang Chen, Yuan Zhu, Qinghua Li
  • Patent number: 9847843
    Abstract: An apparatus for wireless testing, wherein the apparatus includes a test interface, a test generator, a test module, and an analysis module. The test interface is coupled to an electronic device and is configured to transmit data to the electronic device and to receive data from the electronic device. The test generator drives the electronic device through the test interface to vary the beam direction. The test module determines a plurality of transmit values of a transmit parameter based on the test signal wirelessly received from the electronic device using at least one static antenna for receiving the test signal. Each transmit value of the transmit parameter is associated with a different beam direction. The analysis module provides an assessment of the plurality of transmit paths of the electronic device based on the plurality of transmit values.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: December 19, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Jochen Rivoir, Markus Rottacker, Andreas Hantsch
  • Patent number: 9844011
    Abstract: The embodiments herein relate to a method in a first network node (301) for handling Automatic Gain Control, AGC, scaling and Transmit Power Control, TPC, scaling of a signal received from a second network node (305). The first network node AGC compensates the signal for any AGC scaling changes. The AGC compensating the signal results in an AGC compensated signal comprising a constant AGC scaling. The first network node detects a TPC scaling change of the signal. The detection is based on the signal after the TPC scaling change and based on a predicted channel estimate. The predicted channel estimate is based on the signal before the TPC scaling change. The first network node TPC compensates for the detected TPC scaling change. The TPC compensation results in an AGC and TPC compensated signal comprising the constant AGC scaling and a constant TPC scaling according to the detected TPC scaling change.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: December 12, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Sahlin, Anders Persson
  • Patent number: 9825597
    Abstract: Aspects of this disclosure relate to an impedance transformation circuit for use in an amplifier, such as a low noise amplifier. The impedance transformation circuit includes a matching circuit including a first inductor. The impedance transformation circuit also includes a second inductor. The first and second inductors are magnetically coupled to each other to provide negative feedback to linearize the amplifier.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 21, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventor: Leslie Paul Wallis
  • Patent number: 9820232
    Abstract: A detector in a mobile device receives input from a modem, determines whether the mobile device is indoor or outdoor based on the modem-supplied input, and stores in memory a binary value to indicate an indoor-outdoor state. In some embodiments, the detector extracts a feature from the modem-supplied input, and uses the extracted feature with a statistical classifier, to output an indoor-outdoor state and an associated probability of correctness of the indoor-outdoor state, in other embodiments, the detector determines whether the mobile device is indoor or outdoor based at least on the feature extracted to characterize temporal distribution of the wireless signal, by using a prior value of the state being indoor or outdoor.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Piero Zappi, Ashwin Swaminathan, Santiago Mazuelas, Roy Franklin Quick, Jr.
  • Patent number: 9805917
    Abstract: In a plasma processing method, first processes and second processes are performed alternately. In each first process, a first gas is supplied into a processing vessel from a gas supply system, and a first high frequency power is supplied from a first high frequency power supply. In each second process, the first high frequency power is supplied from the first high frequency power supply continuously from a first process which is performed just before the corresponding second process. In each second process, a gas switching signal for switching the gas from the first gas to the second gas is applied to the gas supply system. Further, a supply of a second high frequency power is begun by a second high frequency power supply when a parameter such as a load impedance exceeds a threshold value after the gas switching signal is applied to the gas supply system.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 31, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Koichi Nagami
  • Patent number: 9807693
    Abstract: A method of minimizing power consumption of an electronic device is provided. The method includes receiving a signal through a plurality of receivers of the electronic device, checking a status of the received signal, determining whether the received signal satisfies a preset amplifier control condition based on the status of the received signal, and adjusting a gain of an amplifier, which is connected to a receiver of the plurality of receivers, in response to the preset amplifier control condition when the preset amplifier control condition is satisfied.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 31, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Intae Jun, Yonghune An, Jeeon Park, Cheoleun Heo
  • Patent number: 9774361
    Abstract: A portable device and a method for transmitting signals at maximum data transmission rate are disclosed herein. The method includes checking minimum transmission power levels of first and the second transmission signals to prevent interrupted transmissions; determining the power levels of the first and the second transmission signals having the maximum data transmission rate based on the minimum transmission power levels and highest transmission power levels satisfying the specific absorption rate (SAR) regulations according to a stored SAR table; transmitting the first and the second transmission signals at the respective determined power levels using a main antenna; and transmitting the second transmission signal using an auxiliary antenna.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 26, 2017
    Assignee: Pantech, Inc.
    Inventor: Seok jin Hong
  • Patent number: 9769006
    Abstract: Various embodiments are described of devices and associated methods for processing a signal using a plurality of vector signal analyzers (VSAs). An input signal may be split and provided to a plurality of VSAs, each of which may process a respective frequency band of the signal, where the respective frequency bands have regions of overlap. Each VSA may adjust the gain and phase of its respective signal such that continuity of phase and magnitude is preserved through the regions of overlap. The correction of gain and phase may be accomplished by a complex multiply with a complex calibration constant. A complex calibration constant may be determined for each VSA by comparing the gain and phase of one or more calibration tones generated with each region of overlap, as measured by each of the VSAs.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 19, 2017
    Assignee: NATIONAL INSTRUMENTS CORPORATION
    Inventors: Stephen L. Dark, Daniel J. Baker, Johnathan R. W. Ammerman
  • Patent number: 9768920
    Abstract: A method for transferring control signals and data signals, particularly in a motor vehicle. The control signals and the data signals are transferred by a physical medium. The control signals or the data signals are modulated prior to transferring. The modulated signals and the non-modulated signals are sent by the physical medium.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: September 19, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Klaus Gröhlich, Ronald Hain, Sebastian Randel, Götz Roderer
  • Patent number: 9762267
    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: September 12, 2017
    Assignee: MEDIATEK INC.
    Inventors: Ming-Chou Wu, Dimitris Nalbantis, Qiang Zhou, Bernard Mark Tenbroek, Ting-Hsuan Kuo
  • Patent number: 9716933
    Abstract: A microphone device comprising a microelectromechanical systems (MEMS) acoustic sensors, an automatic gain compensation (AGC) component, and a direct current (DC) offset cancellation component is described. An microphone device can be configured for AGC of an analog gain stage or a digital gain stage associated with the MEMS acoustic sensor. Provided implementations can also be configured to compensate DC offset resulting from adjustment of the analog provided by the AGC component. Additional embodiments of the subject disclosure can provide digital frequency equalization and/or linearization.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 25, 2017
    Assignee: INVENSENSE, INC.
    Inventor: Omid Oliaei
  • Patent number: 9706413
    Abstract: The present disclosure envisages a computer implemented system and method for Wi-Fi based indoor localization. The system includes a repository for storing attributes of the floor plan of an indoor area with respect to the zones on the floor plan. A communicating module receives a threshold number of data points from user devices located in the area. These data points include a plurality of Received Signal Strength Indicators (RSSI) captured from the access points positioned in the area. A k-means clustering is then performed on the data points for grouping the data points into ‘k’ number of clusters and a decision tree is built by following a condition based approach. Distance values are then calculated pertaining to the RSSIs stored at the decision tree, and zone circles are plotted. Zone of user presence is then determined by correlating the plotted zone circles upon the floor plan using maximum overlap property.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 11, 2017
    Assignee: Tata Consultancy Services Limited
    Inventors: Nasimuddin Ahmed, Chirabrata Bhaumik, Avik Ghose, Arpan Pal, Amit Agrawal, Tapas Chakravarty
  • Patent number: 9698748
    Abstract: An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an undesirable effect caused by an RF signal. Other embodiments are disclosed.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: July 4, 2017
    Assignee: BLACKBERRY LIMITED
    Inventors: Keith R Manssen, Matthew R Greene, Wayne E Smith, Guillaume Blin
  • Patent number: 9686698
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: June 20, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • Patent number: 9671300
    Abstract: An electronic device may include one or more low-noise pressure sensors for measuring air pressure. The electronic device may include wireless communications circuitry for communicating with external devices also having pressure sensors. Pressure data gathered by an external device may be used as reference pressure data for the electronic device. For example, if both devices are located in the same building, both pressure sensors will detect similar pressure fluctuations due to doors opening and closing and temperature-control systems turning on and off. By subtracting the reference pressure data from the pressure data gathered by the electronic device, calibrated pressure data may be obtained and may be used to reliably detect vertical displacement changes of the electronic device. In other scenarios, the pressure data may be compared with the reference pressure data to determine whether the two devices are in the same room.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 6, 2017
    Assignee: Apple Inc.
    Inventors: Stuart K. Neubarth, Michael A. Lehr, David MacNeil, Henry H. Yang
  • Patent number: 9663858
    Abstract: In a plasma processing apparatus, when pulse-modulating the high frequency power RF1 for plasma generation and the high frequency power RF2 for ion attraction with a first pulse PS1 and a second pulse PS2 having different frequencies, respectively, an impedance sensor 96A in a matching device 40 of a plasma generation system calculates an average value (primary moving average value ma) of an load impedance on a high frequency transmission line 43 for each cycle of the second pulse PS2 having a lower frequency, and outputs a load impedance measurement value based on those average values of the load impedance. Then, a matching controller 94A controls reactances of reactance elements XH1 and XH2 within a matching circuit 88A such that the load impedance measurement value is equal or approximate to a matching point (50?).
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: May 30, 2017
    Assignees: TOKYO ELECTRON LIMITED, DAIHEN CORPORATION
    Inventors: Koichi Nagami, Koji Itadani, Tsuyoshi Komoda