Frequency Hopping Patents (Class 375/132)
  • Patent number: 10439672
    Abstract: Systems and methods for signaling or receiving cell identity, network identity, and/or Frequency Hopping (FH) patterns are disclosed. In some embodiments, a method of operating a wireless device in a wireless communication network includes obtaining a signal transmitted from a network node and determining a physical cell identifier, ID, of the network node based on the signal. The method also includes determining a FH pattern of the network node based on the determined physical cell ID of the network node. In this manner, the wireless device can efficiently determine the FH pattern used and may be able to determine if the wireless device should connect to the network node.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 8, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yi-Pin Eric Wang, Cagatay Capar, Jung-Fu Cheng, Havish Koorapaty, Xingqin Lin, Amitav Mukherjee
  • Patent number: 10368310
    Abstract: A computing device may include an accessory radio that facilitates point-to-point wireless connectivity between the computing device and one or more accessory devices. The accessory radio may periodically broadcast its presence to the one or more accessory devices while operating in an active state. The accessory radio may transition from the active state to a sleep state after a period of inactivity. The computing device may also include a general purpose radio that may facilitate general wireless connectivity between the computing device and other devices. The general purpose radio may listen for any messages that are intended for the accessory radio while the accessory radio is in the sleep state. The general purpose radio may activate the accessory radio in response to the general purpose radio receiving a message, while the accessory radio is in the sleep state, that satisfies at least one activation condition.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: July 30, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Srinivasa L. Rao, Dong Hee Pi, Mahesh Yadav, Joseph Michael Schaefer
  • Patent number: 10348339
    Abstract: A device combines filter circuits to be connected to an antenna, enabling carrier aggregation for wireless communications over multiple RF frequency bands in different operational environments. The device includes first, second and third filter circuits having first, second and third matching networks and one or more first, second and third band pass filters with corresponding passbands, respectively. The device further includes multiple individual matching networks not dedicated to any of the first, second or third filter circuits, and a multi-state switch configured to provide different filter circuit combinations by selectively connecting at least two of the first, second and third filter circuits, respectively, and at least one individual matching network of the multiple matching networks. Each filter circuit combination includes a combined matching network having at least two of the first, second and third matching networks and the at least one individual matching network.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: July 9, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Paul Bradley, Lueder Elbrecht, Jeesu Kim, Young Kwon, Mohammad Ardehali
  • Patent number: 10334633
    Abstract: Methods, systems, and devices are described for wireless communication. Dedicated frequency resources of a physical random access channel (PRACH) may be designated for large and small frequency hops to facilitate the determination of timing offsets for PRACH transmissions. For instance, a frequency hopping pattern within the PRACH channel having a plurality of single tone transmission may include a first number of hops associated with a first frequency hopping distance (e.g., large frequency hops), and a second number of hops associated with a second frequency hopping distance (e.g., small frequency hops).
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Renqiu Wang, Xiao Feng Wang, Hao Xu, Wanshi Chen
  • Patent number: 10320637
    Abstract: A method of measuring interference to perform efficient data communication is disclosed. A method of measuring interference of neighboring cells comprises allocating one or more first resource elements, to which pilot signals are allocated, to predetermined symbol regions included in a first resource block; allocating one or more second resource elements for measuring interference of the neighboring cells to a first symbol region of the predetermined symbol regions; and measuring interference of the neighboring cells using the one or more second resource elements.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hoon Chung, Hyun Soo Ko, Moon Il Lee, Bin Chul Ihm
  • Patent number: 10320473
    Abstract: The method for a terminal for receiving data for each service from a particular frame in a wireless communication system according to the present invention comprises the steps of: receiving, from a base station, a first control channel comprising first control information associated with a first service; receiving, from the base station and on the basis of the control information, a first data channel utilized for transmitting the first service; receiving, from the base station, a second control channel comprising second control information associated with a second service; and receiving, from the base station and on the basis of the second control information, a second data channel utilized for transmitting the second service, wherein the first and second services are services of mutually different types, and the first control channel is received by means of the full system bandwidth configured on the terminal, and the second control channel and second data channel are received by means of a particular sub-b
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinmin Kim, Jaehoon Chung, Genebeck Hahn, Eunjong Lee, Kukheon Choi, Kwangseok Noh, Sangrim Lee
  • Patent number: 10306477
    Abstract: A wireless communication system of the present disclosure includes a first wireless communication device that performs wireless communication in a first communication scheme, a terminal device that performs wireless communication in the first communication scheme with the first wireless communication device, and a plurality of second wireless communication devices that can perform wireless communication in a second communication scheme different from the first communication scheme, and function as access points.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: May 28, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toru Oizumi, Takeshi Hatakeyama
  • Patent number: 10299272
    Abstract: A method may include determining, by a base station, a switching occasion during which at least one connected user equipment will be in a connected off cycle and at least one idle user equipment will be in an idle off cycle, instructing the at least one connected user equipment and at least one idle user equipment to switch, during the switching occasion, from communicating with the base station via a source carrier frequency to communicating with the base station via a target carrier frequency, and switching, during the switching occasion, from communicating with the at least one connected user equipment and the at least one idle user equipment via the source carrier frequency to communicating with the at least one connected user equipment and the at least one idle user equipment via the target carrier frequency.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: May 21, 2019
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Roy Yang, Ejaz Shah, Alan Jette, Kamil Bechta, Man Hung Ng
  • Patent number: 10298288
    Abstract: This disclosure relates to antenna switching circuitry and other radio frequency (RF) front-end circuitry. In one embodiment, the antenna switching circuitry includes a multiple throw solid-state transistor switch (MTSTS), a multiple throw microelectromechanical switch (MTMEMS), and a control circuit. The MTSTS is configured to selectively couple a first pole port to any one of a first set of throw ports and to selectively couple a second pole port to any one of a second set of throw ports. The MTMEMS is configured to selectively couple a third pole port to any one of a third set of throw ports. The control circuit is configured to control the selective coupling of the MTSTS and the MTMEMS. In this manner, the control circuit may operate the antenna switching circuitry so that RF signals may be routed in accordance with Long Term Evolution (LTE) Multiple-Input and Multiple-Output (MIMO) and/or LTE diversity specifications.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: May 21, 2019
    Assignee: Qorvo US, Inc.
    Inventor: Nadim Khlat
  • Patent number: 10291450
    Abstract: The present disclosure relates to a communication technique for converging a 5G communication system for supporting a higher data rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related service, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present invention relates to a method for transmitting and receiving data, and a method for receiving data by a terminal according to the present invention comprises: receiving, from a base station, a random sequence generation parameter for generating a random sequence including a random variable in a first band; generating the random sequence using the received parameter; and performing decoding on the basis of the random variable included in the random sequence in a second band.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 14, 2019
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyoungju Ji, Daesik Hong, Younsun Kim, Hyunsoo Kim, Jonghyun Bang
  • Patent number: 10218403
    Abstract: A system and method operating a convertible information handling system comprising a processor executing code instructions for a modular dynamic wireless power control system for detecting an active wireless link operating via an antenna system and a first orientation mode, wherein the transmission power of the antenna system is limited to a regulatory safety maximum depending on orientation, the processor determining the permitted regulatory safety maximum transmission power for the first orientation mode for the information handling system and the processor determining relative transmission activity levels for the information handling system relative to the first active wireless link and the second active wireless link, including a first wireless link data rate transmission level for the first antenna system and a second wireless link data rate transmission level for the second antenna system.
    Type: Grant
    Filed: July 30, 2017
    Date of Patent: February 26, 2019
    Assignee: Dell Products, LP
    Inventors: Kamal J. Koshy, Benny J. Bologna, Ching Wei Chang, Nicholas D. Grobelny, Geroncio O. Tan
  • Patent number: 10136429
    Abstract: A method for transceiving audio data by using Bluetooth low energy in a wireless communication system supporting Bluetooth communication by a first device, includes: establishing at least one isochronous channel for transmitting isochronous data with at least one second device; and transmitting the audio data to at least one second device through at least one established isochronous channel during a first interval.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 20, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaeho Lee, Jingu Choi
  • Patent number: 10122373
    Abstract: An A/D converter includes: an input unit configured to receive an analog input signal, a preprocessing unit configured to convert the input signal into a digital preprocessing signal based on a dynamic range of the input signal and a first resolution corresponding to a predetermined first bit number, a first conversion unit configured to convert the preprocessing signal into a first output signal based on a second resolution corresponding to a second bit number smaller than the first bit number, and a second conversion unit configured to convert the preprocessing signal into a second output signal based on a third resolution corresponding to a third bit number which is smaller than the first bit number and is different from the second bit number.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: November 6, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Jung-Wook Kim
  • Patent number: 10097283
    Abstract: Example radio frequency (RF) transmitters and associated methods are disclosed. One example RF transmitter includes an RF oscillator, a real-time clock (RTC) oscillator. and a control circuit. The control circuit is configured to determine whether a calibration of the RF oscillator is needed; electrically couple the RF oscillator to the RTC oscillator and initiate calibrating of the RF oscillator using the RTC oscillator when it is determined that the calibration is needed; and activate the RF oscillator to operate in an open-loop mode to generate an RF signal for data transmission. The calibration can be performed in a closed-loop mode before the data transmission or in an open-loop mode during the data transmission.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 9, 2018
    Assignee: Verily Life Sciences LLC
    Inventors: Daniel Yeager, Amirpouya Kavousian
  • Patent number: 10091730
    Abstract: The present disclosure discloses a method and network device for adaptive management of wireless clients based on clients' radio behaviors and capabilities. Specifically, a disclosed network device can dynamically select a location tracking mechanism based on a probing characteristic of a client device. The disclosed network device can also dynamically selects a communication mechanism based on a power saving characteristics of a client device. Moreover, the disclosed network device can determine whether to select a new access point for a client device based on roaming characteristics of the client device. The adaptive management of client devices can be performed on a group of client devices with similar radio behaviors and/or capabilities on a per-radio rather than per-BSSID (basic service set identifier) basis.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 2, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Min Cao, Partha Narasimhan
  • Patent number: 10050727
    Abstract: Embodiments of the present invention include methods and systems for detecting a peak of an ultra-wide-band (UWB) signal in a data stream.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 14, 2018
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Elik Cohen, Kourosh Pahlavan
  • Patent number: 10045351
    Abstract: Systems and Methods for supporting carrier aggregation with different TDD configurations are proposed. In a first novel aspect, corresponding apparatus structure is described. In a second novel aspect, aggregation constraint is discussed. In a third novel aspect, transceiving mechanisms over multiple component carriers in DL/UL overlapped subframes are proposed. For simultaneous DL/UL transceiving, band combination indication methods are proposed, and HARQ feedback mechanisms are proposed. For non-simultaneous DL/UL transceiving, transceiving configuration methods are proposed, and the same HARQ feedback mechanisms are proposed. In a fourth novel aspect, CQI/RLM/RRM measurement mechanisms are proposed. In a fifth novel aspect, UE capability signaling mechanisms are proposed. The objective is to support flexible aggregation, to enhance DL data throughout, and to improve UL transmit power efficiency.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 7, 2018
    Assignee: MEDIATEK INC.
    Inventors: Shiang-Jiun Lin, Pei-Kai Liao, Meng-Ying Tsai, Yih-Shen Chen
  • Patent number: 10027370
    Abstract: [Object] To provide a transmission apparatus, reception apparatus, and information processing method which enable a wireless device to carry out wireless transmission with less power consumption. [Solution] A transmission apparatus includes: a communication unit configured to transmit a transmission signal from the transmission apparatus to a reception apparatus via wireless communication; and a signal processing unit configured to generate the transmission signal in which transmission information is spread by using a spreading code selected according to identification information of the transmission apparatus, in order to enable the reception apparatus to acquire the identification information on the basis of an estimation result of the spreading code used for the transmission signal.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: July 17, 2018
    Assignee: SONY CORPORATION
    Inventors: Masanori Sato, Katsutoshi Itoh
  • Patent number: 10027305
    Abstract: A filter can be used in circuit. The filter includes a first stage including a first resonator configured to oscillate at a first fundamental frequency, a second resonator configured to oscillate at a second fundamental frequency, and a first nonlinear coupler for the first resonator and the second resonator. The second fundamental frequency being one half of the first fundamental frequency. The filter also includes a second stage including a third resonator, a fourth resonator, and a second nonlinear coupler for the third resonator and the fourth resonator.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 17, 2018
    Assignee: ROCKWELL COLLINS, INC.
    Inventor: Alexander B. Kozyrev
  • Patent number: 9986438
    Abstract: Examples disclosed herein relate to efficient hierarchical radio frequency (RF) spectrum assigning across both licensed and unlicensed frequencies in a given area. Wireless devices in the area are detected by a spectrum manager, which also detects all available RF frequencies that are available. Conditional, relative, or absolute RF assignment rules received by an administrator or from an administrative device dictate the allocation conditions for assigning wireless devices to different frequencies, channels, channel widths, bands, durations, or other specifics of the available RF frequencies. Alternatively, RF spectra may be assigned reactively based on the current, historical, or future network usage on the available network frequencies.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: May 29, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Peter Fortman, Mark Clear
  • Patent number: 9967893
    Abstract: A system, apparatuses and methods are provided for communicating in an opportunistic band. Channels that are reserved for primary users are used by sensing devices when primary users are not present. A geo-location database is configured to store occupancy information of a channel and information associated with the primary user of the channel. The database includes information such as the type of primary user, and the expected occupancy time of a channel by a primary user. Sensing devices are categorized into different classes based on their sensing capability. A device capabilities database stores device classification information associated with the sensing devices attached to a dynamic spectrum management system.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: May 8, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Martino Freda, Athmane Touag
  • Patent number: 9967820
    Abstract: According to the present disclosure, a communication device configured to power on a main receiver to receive data from a network includes: a low power receiver configured to receive a wake up packet, including a preamble, from the network and oversample the wake up packet; a circuit arrangement including: a correlator configured to correlate the oversampled portion of the preamble; a delay and adder configured to take an output of the correlator, delay the output of the correlator, and add the output of the correlator back onto itself to produce a delay output; a peak detector configured to detect a peak pattern in the delay output; a demodulator configured to calculate a decoding threshold value to produce a demodulated data; and a packet parser configured to check the demodulated data for a data set in order to selectively output a nonzero signal to power on the main receiver.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 8, 2018
    Assignee: Intel Corporation
    Inventors: Richard Dorrance, Minyoung Park, Alexander W. Min, Farhana Sheikh
  • Patent number: 9967206
    Abstract: Spectrum harvesting methods and spectrum harvesters implementing such spectrum harvesting methods are disclosed. In some embodiments, multiple spectrum harvesters may be configured to scan a frequency band of interest in a distributed and staggered manner. The results obtained by the spectrum harvesters may be shared with each other according to a round-robin scheme. Distributed scanning and round-robin sharing techniques configured in accordance with the inventive concepts disclosed herein may allow the spectrum harvesters to jointly function as a continuous spectrum scanner capable of providing near real time spectrum harvesting.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: May 8, 2018
    Assignee: Rockwell Collin, Inc.
    Inventors: John Thommana, Matthew J. Thommana
  • Patent number: 9954602
    Abstract: An apparatus comprising a backplane and a number of transponder slices connected to the backplane to form a transponder. The number of transponder slices comprise an analog front end configured to receive an analog input comprising a first plurality of bandwidths and a first plurality of interface frequencies, analog to digital converters configured to convert the analog input to digital signals, a digital channelizer configured to process the digital signals to generate a plurality of frequency slices, a digital combiner configured to assemble the plurality of frequency slices to form output sub-bands, a digital switch configured to route the plurality of frequency slices from the digital channelizer to the digital combiner, digital to analog converters configured to convert the output sub-bands to an analog output, and an analog back end configured to transmit the analog output comprising a second plurality of bandwidths and a second plurality of interface frequencies.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 24, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Mark Andrew Hoffmeyer, Kristina Miller, Irwin Balter, Tae Jung Roh
  • Patent number: 9942366
    Abstract: Techniques for presenting communication by two or more stations in a WLAN environment are provided. Specifically, methods are presented, that when taken alone or together, provide a device or group of devices with an efficient way for bandwidth adaptation using echo cancellation.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 10, 2018
    Assignee: INTEL CORPORATION
    Inventors: Minyoung Park, Alexander W. Min, Yang-Seok Choi
  • Patent number: 9929830
    Abstract: An access point receives notification of a bit rate setting specifying a throughput needed to transmit corresponding content to a communication device. Based on the bit rate setting, the wireless access point identifies a set of multiple possible modulation-coding options supporting transmission of data at different bit rates greater than the bit rate setting needed to transmit the corresponding content. The wireless access point selects a respective modulation-coding option that provides a throughput bit rate that is lower than a modulation-coding option in the set providing a highest possible throughput bit rate. Selection of the lower bit rate modulation-coding option provides adequate capacity to transmit the corresponding content, yet does so with a higher signal to noise ratio than would be provided by the higher bit rate modulation-coding option. Subsequent to selection, the wireless access point transmits the corresponding content to the communication device via the selected modulation-coding option.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: March 27, 2018
    Assignee: Time Warner Cable Enterprises LLC
    Inventors: Roger Stafford, Christopher Cholas
  • Patent number: 9894447
    Abstract: A method in a wireless network comprising a plurality of frequency channels and a receiving participant, the method includes: receiving data on a first subset of the plurality of frequency channels, wherein the frequency channels in the first subset are utilized at least once; receiving data on a second subset of the plurality of frequency channels; determining packet error rates for the respective frequency channels in the first and the second subsets; and selecting one of the plurality of frequency channel as an optimal frequency channel based on a result from the act of determining.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 13, 2018
    Assignee: GN ReSound A/S
    Inventors: Hong Liu, Brian Dam Pedersen
  • Patent number: 9888523
    Abstract: Systems and methods for improving wireless access point communications are provided. Some embodiments contemplate filtering operations such that two or more radios can be used in the 5 GHz or 2.4 GHz band without interfering with each other. Some embodiments employ discrete Low Noise Amplifiers (LNA) and Power Amplifiers (PA) as well as frontend modules. In some examples, filtering may be primarily used on the receiving side to filter out other signals in 5 GHz before they are amplified by an external LNA or LNAs, e.g., as integrated in a WLAN chipset. Filtering may also be performed on the transmit side in some embodiments.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: February 6, 2018
    Assignee: NETGEAR, INC.
    Inventors: Peiman Amini, Joseph Amalan Arul Emmanuel, Shun-Liang Yu
  • Patent number: 9853798
    Abstract: A communication device, method, and system generate wireless communication signals that include a subframe within a radio frame. The subframe includes an extension control area in a data area of the subframe. The extension control area is set according to a periodic mapping pattern.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 26, 2017
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Takano
  • Patent number: 9848346
    Abstract: A mechanism for end-to-end link quality indication, including a wireless router, coupled to other wireless routers over a multi-hop mesh network, responsive to a first message received from an origination device, configured to forward the first message to a next one of the other wireless routers in route to a destination device. The wireless router has received signal strength indication (RSSI) logic, that adds first RSSI information to a first field of the first message, and that adds second RSSI information to a second field of an acknowledgement message prior to transmitting the acknowledgement message to the origination device. The first and second RSSI information, along with intermediate RSSI information added by one or more of the other wireless routers along a path from the origination device to the destination device, is aggregated into a single term representative of total round-trip quality for the first message and the acknowledgment message.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 19, 2017
    Assignee: ENERNOC, INC.
    Inventors: Randy C. Willig, Morgan Jones
  • Patent number: 9844032
    Abstract: The disclosed embodiments relate to real time monitoring of usage of multiple pieces of exercise equipment and providing exercise based metric data based thereon to devices for aggregation, display or other processing thereof. In particular, the disclosed embodiments facilitate collection of exercise based metric data from various pieces of exercise equipment, such as stationary bikes, treadmills, and the like, in real time, i.e. as the equipment is utilized by an exercising user, combine the collected data in a form suitable for use by various interested devices and broadcast or otherwise disseminate the combined data to the various devices wherein the various devices may access the broadcasted combined data to access the usage metric data from any one or more of the pieces of exercise equipment from which it was collected for subsequent aggregation, display and/or further processing.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 12, 2017
    Assignee: ECOFIT Networks Inc.
    Inventors: David Johnson, Philip Rankine, Peter McGuire
  • Patent number: 9843466
    Abstract: A method for disabling a sequence group hopping by a user equipment (UE) in a wireless communication system, the method includes receiving a cell-specific sequence group hopping parameter from a base station, wherein the cell-specific sequence group hopping parameter is used to enable the sequence group hopping for a plurality of UEs, including the UE, in a cell; receiving a UE-specific sequence group hopping parameter from the base station, wherein the UE-specific sequence group hopping parameter is used to disable the sequence group hopping for the UE; and disabling the sequence group hopping by the UE-specific sequence group hopping parameter.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 12, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyun Soo Ko, Min Seok Noh, Jae Hoon Chung, Seung Hee Han, Moon Il Lee
  • Patent number: 9832801
    Abstract: The present invention relates to a method for performing device-to-device (D2D) communication in a wireless communication system. Particularly, the method comprises the step of discovering, by a first device performing channel hopping and D2D communication, a second device for which a new D2D communication is to be performed, wherein: the first device discovers the second device on the basis of a first channel hopping sequence in a first time interval within a total discovery period which is a channel hopping period, and is configured to perform channel hopping on the basis of a second channel hopping sequence in a second time interval within the total discovery period; and the total discovery period of the first device is determined on the basis of the second channel hopping sequence in the second time interval and the number of repetitions of the second channel hopping sequence.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: November 28, 2017
    Assignee: LG Electronics Inc.
    Inventors: Suhwook Kim, Jinyoung Chun, Hangyu Cho
  • Patent number: 9826534
    Abstract: An automatically adjustable radiofrequency link system includes a radiofrequency transmitter configured to transmit a signal at a frequency of transmission within an extremely high frequency (EHF) band. The system further includes a receiving device configured to receive the transmitted signal and provide feedback to a processing circuit communicatively coupled to the transmitter and the receiving device, wherein the feedback is related to the received signal. The processing circuit is configured to determine required signal properties based on the feedback and determine signal loss properties including an effect of atmospheric absorption, as a function of frequency; determine a modification to the transmitted signal using the signal loss properties and the required signal properties; and adjust the frequency of transmission to obtain a desired transmission signal using the modification.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: November 21, 2017
    Assignee: Elwha LLC
    Inventors: Jeffrey A. Bowers, Alistair K. Chan, Russell J. Hannigan, Roderick A. Hyde, Jordin T. Kare, Nathan Kundtz, Nathan P. Myhrvold, John Brian Pendry, David R. Smith, Clarence T. Tegreene, David B. Tuckerman, Charles Whitmer, Lowell L. Wood, Jr.
  • Patent number: 9768894
    Abstract: A method for monitoring radio frequency (RF) transmitters in an environment, that fits a probability mixture model (PMM) comprising a plurality of probability density functions (PDFs) at least two of which are of a different type, to RF power measurements of RF signals received in the environment to determine a number and characteristics of RF transmitters operating in the environment.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: September 19, 2017
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Aakanksha Chowdhery, Mariya Zheleva, Ranveer Chandra, Ashish Kapoor, Paul Garnett
  • Patent number: 9763112
    Abstract: A communications system having a network of nodes that may transmit and receive wireless signals. RF channel quietness may be measured at each node. A channel that is the best for all of the nodes may be selected. However, if all of the nodes except for one node determine that a particular channel is the best and not acceptable to the one node but that another channel is acceptable to all of the nodes, then the entire network may choose to operate on the other channel. The network may choose to operate on more than one channel in a time slotted fashion if a single acceptable channel cannot be found for all of the nodes. Channel quietness measurements may be facilitated by and uploaded to a host controller. The host controller may build a profile of measurements from the nodes for each channel.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: September 12, 2017
    Assignee: Honeywell International Inc.
    Inventors: Robert J. Thomas, Jeffrey M. Reeder
  • Patent number: 9756453
    Abstract: A wireless communication apparatus includes antenna elements, each receiving a first signal and a second signal, a first estimator that estimates first channel information of the first signal, a false signal generator that generates false signals that are equal in number to or greater in number than the number of the antenna elements, each of the false signals arriving from a unique direction that is different from a direction of arrival of the first signal, a weight generator that generates first weights, each being associated with a corresponding one of the false signals and forming a null in the direction of arrival of the first signal, a multiplier that multiplies a signals received by the respective antenna elements by the first weights to acquire weight-multiplied signals, and a second estimator that estimates second channel information of the second signal using the weight-multiplied signals.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: September 5, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kenichi Nishikawa, Kazuyuki Ozaki, Kaoru Yokoo, Hiroshi Fujita, Hiroo Urabe
  • Patent number: 9755706
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for joint support of coordinated multipoint (CoMP) operations and carrier aggregation (CA). One method generally includes receiving signaling indicating a configuration, from a set of possible configurations, that defines how the UE is to communicate with one or more base stations (BSs) using coordinated multipoint (CoMP) operations on one or more component carriers (CCs) and communicating in accordance with the configuration.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 5, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Stefan Geirhofer, Wanshi Chen, Hao Xu, Peter Gaal
  • Patent number: 9717050
    Abstract: Disclosed are methods for delivering data (212) to a wireless station (102). An access point (104), or any other suitable device or system, receives a plurality of association requests (204) from a plurality of wireless stations (102) and transmits a different association identifier (208) to each of the plurality of wireless stations (102). The access point (104) buffers data (212) for a subset of the wireless stations (102). If the number of wireless stations (102) with buffered data (212) at the access point (104) is less than a threshold, then the access point (104) transmits a list of association identifiers indicating that buffered data (212) are held for each wireless station (102) identified by the list.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 25, 2017
    Assignee: Google Technology Holdings LLC
    Inventors: Stephen P. Emeott, Murali Narasimha, Dwight R. Smith
  • Patent number: 9680684
    Abstract: A coding and modulation apparatus and method are presented. The apparatus (10) comprises an encoder (11) that encodes input data into cell words, and a modulator (12) that modulates said cell words into constellation values of a non-uniform constellation. The modulator (12) is configured to use, based on the total number M of constellation points of the constellation and the signal-to-noise ratio SNR in dB, a non-uniform constellation from a group of constellations comprising one or more constellations defined by a constellation position vector comprising a predetermined number of constellation positions, wherein in one or more constellation position vectors two or more constellation positions are identical resulting from a condensation of preliminary constellation positions optimized before.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 13, 2017
    Assignee: Sony Corporation
    Inventors: Lothar Stadelmeier, Nabil Sven Loghin, Jan Zoellner
  • Patent number: 9654990
    Abstract: A method of co-ordinating communication between a plurality of base stations in a communication system, comprising designating timeslots where said base stations receive and/or transit co-ordination messages to each other. The system may be an autonomous cellular system and the timeslots may be regularly spaced.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: May 16, 2017
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Frank Frederiksen, Klaus Ingemann Pedersen
  • Patent number: 9628140
    Abstract: Disclosed are a method, system and device for determining an SRS frequency hopping pattern. The method includes: user equipment constructing a parent table which contains a plurality of child tables; determining an SRS frequency-domain reference position p according to NRBUL, CSRS, nRRC and bhop; calculating n?RRC according to NRBUL, CSRS and nRRC and selecting a child table from the parent table according to the n?RRC; according to the nSRS and the selected child table, taking n?SRS=(nSRS mod P)┬ĚS as an index to look up the table to obtain an SRS frequency hopping frequency-domain position offset q in each SRS frequency hopping period according to an SRS frequency hopping bandwidth parameter bhop and an SRS-bandwidth parameter BSRS distributed by an eNodeB; calculating r=p+q and calculating an SRS transmission frequency-domain subcarrier offset k0; repeating the processing for P times within one SRS frequency hopping period to obtain an SRS frequency hopping pattern.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: April 18, 2017
    Assignee: ZTE Corporation
    Inventors: Yining Xie, Chunli Liang
  • Patent number: 9613556
    Abstract: An electronic device may be provided with wireless circuitry and a display. A display driver integrated circuit in the display may have a spectrum analyzer circuit. An antenna may monitor for wireless signals. The display driver integrated circuit may use the spectrum analyzer circuit to analyze the wireless signals and determine whether there is a potential for visible display artifacts. In the presence of conditions that can lead to display artifacts, the display driver integrated circuit may adjust a gate driver control signal. Adjustments to the gate driver control signal may be made using adjustable signal dividers. The adjustments to the gate driver control signal eliminate the visible display artifacts.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 4, 2017
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Sang Y. Youn, Hopil Bae, Mohammad Ali Jangda, Ahmad Al-Dahle, Wei H. Yao
  • Patent number: 9614580
    Abstract: Disclosed examples include methods and network devices for communicating in a wireless network, in which the device generates frequency hopping sequence y(j) having a prime number sequence length p, using cyclotomic classes in a field of p or using a baby-step giant-step algorithm, where y(0)=p?1 and the remaining sequence values y(j)=log?(j) mod (p?1). In certain examples, ?=2 and the sequence is generated without solving logarithms using one or more algorithms to conserve memory and processing complexity for low power wireless sensors or other IEEE 802.15.4e based networks using Time-Slotted Channel Hopping (TSCH) communications.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: April 4, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Chao-Fang Shih, Ariton E. Xhafa, Jianwei Zhou
  • Patent number: 9602193
    Abstract: An application that creates a dynamic ad hoc network by wirelessly linking a plurality of mobile Bluetooth transceivers. The dynamic ad hoc network enables communication between a transmitting Bluetooth transceiver and a receiving Bluetooth transceiver through at least one intermediary Bluetooth transceiver exclusive of other higher power consuming and expensive communication protocols, such as cellular networks. The network provides a number of solutions, including transportation management, traffic alerts, traffic telematics, information associated with road signs, warnings of speed limit changes, navigation, emergency scenarios (more specifically in a condition where a cellular network is inoperable or unavailable), etc. Navigation can utilize GPS, motion sensors, references from RF beacons signals, and the like to determine a user's location and routing.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 21, 2017
    Inventor: Ehud Mendelson
  • Patent number: 9584290
    Abstract: Systems, methods and apparatuses are provided that facilitate selecting resources, such as time slots, subframes, etc., for performing bandwidth switching related to activating and/or deactivating one or more carriers. A data portion of one or more subframes can be selected for performing bandwidth switching. In addition, a device can determine whether one or more downlink grants are received in the one or more subframes, and can avoid selecting such subframes. The device can alternatively perform the bandwidth switching and request retransmission of the data portion. Additionally or alternatively, the device can determine a type of the one or more subframes and/or signals transmitted in the one or more subframes to determine whether to perform bandwidth switching in the subframes. The bandwidth switching can include changing a sampling rate, reconfiguring frequency filters, modifying a local oscillator, etc.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Rajat Prakash, Jelena M. Damnjanovic, Peter Gaal, Parag Arun Agashe, Valentin Alexandru Gheorghiu, Masato Kitazoe, Ravi Palanki
  • Patent number: 9584242
    Abstract: Embodiments of the present invention provide a data transmission method based on cross-carrier scheduling. The method includes: determining a first downlink subframe according to a timing relationship of an uplink HARQ of a reference uplink and downlink configuration, where the first downlink subframe is used to indicate timing of sending uplink scheduling grant information of a first uplink subframe of a scheduled cell; transmitting the uplink scheduling grant information in a subframe of a scheduling cell corresponding to the first downlink subframe, under a circumstance that the subframe of the scheduling cell corresponding to the first downlink subframe is a downlink subframe, where an uplink and downlink configuration of the scheduling cell and an uplink and downlink configuration of the scheduled cell are different; and receiving or sending uplink data in the first uplink subframe. In the present invention, the cross-carrier scheduling may be implemented effectively.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: February 28, 2017
    Assignee: Huawei Device Co., Ltd.
    Inventors: Yingyang Li, Lei Guan, Bo Li
  • Patent number: 9584269
    Abstract: A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency reso
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: February 28, 2017
    Assignee: NEC CORPORATION
    Inventors: Robert Arnott, Yassin Aden Awad
  • Patent number: 9572114
    Abstract: A channel map generation method includes: performing a power spectrum density detection on a plurality of channels in a frequency band, to generate a first channel map; and performing a first smoothing operation on the first channel map by a first window size to generate a second channel map. The first smoothing operation includes: grouping channels of the first channel map into a plurality of channel groups according to the first window size; and according to the number of good channels or bad channels in each of the channel group, deciding to retain channel determinations in the first channel map of the channel group, or re-designating all the channels of the channel group, so as to generate the second channel map.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 14, 2017
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yan-Yu Chen, Chung-Yao Chang
  • Patent number: 9554344
    Abstract: Disclosed herein are techniques to enable discovery of a NAN cluster using low-power communication. According to such techniques, a NAN discovery beacon including information indicative of a schedule for communication using a first radio is transmitted using a second radio that utilizes a lower amount of power relative to the first radio.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 24, 2017
    Assignee: INTEL CORPORATION
    Inventors: Po-Kai Huang, Robert Stacey, Carlos Cordeiro, Emily H. Qi