Synchronization Patents (Class 370/350)
  • Patent number: 10321389
    Abstract: A mobile RF communication device configured for dual SIM operation and configured to send a request for search data relevant to the second SIM module to a server, said request including an identifier for a first cell associated with the first operator; receive a response from said server, said response including a correlation for said first cell and search data for a second cell associated with the second operator, the search data including an identifier for the second cell; and adapt a network searching strategy for the second RF modem based on the correlated search data.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Joakim Axmon, Marten Akerman, Ali Nader
  • Patent number: 10320061
    Abstract: A device comprises a memory that stores instructions executed by one or more processors to obtain a plurality of received signals transmitted by a user equipment from a plurality of antenna elements in a cellular network. A plurality of received signals transmitted by a user equipment from a plurality of antenna elements in a cellular network are obtained, and a plurality of complex channel values are calculated in an angle domain for a horizontal arrival angle and a vertical arrival angle per a received ray in a plurality of received rays in response to the plurality of received signals. An expected value of the plurality of channel values are calculated to obtain a power value for the horizontal arrival angle and vertical arrival angle having a time delay per the received ray.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 11, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Guosen Yue, Xiao-Feng Qi
  • Patent number: 10313143
    Abstract: A wireless communication system synchronizes a Single Frequency Network (SFN). The wireless communication system includes a multicast server system that transmits multimedia content to wireless access points. The wireless access points determine and transmit SFN transmit time information to the multicast server system. The multicast server system uses the SFN transmit time information to determine individual buffering information for each of the wireless access points. The multicast server system adjusts a buffer delay for each individual wireless access points using the individual buffering information. The multicast server system transmits the multimedia content to wireless access points.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: June 4, 2019
    Assignee: Sprint Communications Company L.P.
    Inventor: Volkan Sevindik
  • Patent number: 10313043
    Abstract: A communications device transmits/receives data from a mobile communications network including one or more network elements forming plural cells. Each cell is allocated a cell identifier. For each cell the network elements provide a wireless access interface providing plural communications resource elements across a frequency range of a first carrier, and divided in time into plural frames. The one or more network elements transmit in one or more of the frames a synchronization sequence, each synchronization sequence providing an indication of a cell identifier. A controller calculates an estimate of a cell identifier from the detected synchronization sequence, and uses the cell identifier to transmit/receive the data to/from the mobile communications network via the wireless access interface. A relative temporal location of the synchronization sequence within the frame provides the communications device with an indication of the cell identifier of the cell.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 4, 2019
    Assignee: SONY CORPORATION
    Inventors: Matthew Webb, Hideji Wakabayashi
  • Patent number: 10314050
    Abstract: A method is disclosed of a network node of a cellular communication system for configuring a first cell of the cellular communication system in relation to a second cell of the cellular communication system. A coverage area of the first cell and a coverage area of the second cell overlap, at least partly. The first cell is to be provided by a first base station of the cellular communication system and has a first bandwidth and the second cell is provided by a second base station of the cellular communication system and has a second bandwidth which is larger than the first bandwidth. The method comprises determining an offset between a first carrier frequency of the first cell and a second carrier frequency of the second cell and configuring the first base station to provide the first cell based on the first carrier frequency.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: June 4, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Bo Hagerman, Stefan Parkvall
  • Patent number: 10306575
    Abstract: A first wireless communication device belongs to a first of multiple groups of wireless communication devices. Devices in any given group are synchronized to the same timing reference and devices in different groups are not synchronized to the same timing reference. The first device receives a message that indicates, for each of one or more of the groups, a range of possible values for misalignment between the timing reference of that group and a common timing reference. The range accounts for uncertainty in that misalignment. The first device determines, based on the one or more ranges, intervals of times during which direct control signaling is expected to be received at the first device from one or more devices in one or more other groups. The first device then adjusts intervals of times during which it is configured to operate in an awake state to narrowly encompass the intervals of times during which the direct control signaling is expected to be received.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: May 28, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefano Sorrentino, Gino Luca Masini, Stefan Wänstedt
  • Patent number: 10306495
    Abstract: Methods, apparatuses and computer readable media are described that determine a connection state between a mobile wireless device and a wireless network upon detection of an interruption of a connection between the mobile wireless device and the wireless network. The mobile wireless device transmits an uplink resource allocation message to the wireless network, and when receiving no response to the uplink resource allocation message, transmits a random access message to the wireless network. When receiving no response from the wireless network to the random access message, the mobile wireless device executes a radio link failure procedure. In an embodiment, the uplink resource allocation message includes a unique identifier for an existing radio resource control connection between the mobile wireless device and the wireless network.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: May 28, 2019
    Assignee: Apple Inc.
    Inventors: Li Su, Srinivasan Nimmala
  • Patent number: 10306671
    Abstract: Current approaches to transmitting uplink data in a network often require resources to be granted. In an example, a node or apparatus may configure a plurality of devices to operate in a grant-less mode in accordance with a respective grant-less access allocation. Grant-less operations may be managed, for example, to meet the reliability and latency requirements and battery life requirements for different types of devices. For example, the state transition between grant-less and grant based may be managed.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 28, 2019
    Assignee: Convida Wireless, LLC
    Inventors: Qing Li, Guodong Zhang, Pascal M. Adjakple, Allan Y. Tsai, Qian Zhang, Lakshmi R. Iyer, Wei Chen, Joseph M. Murray, Tianyi Xu
  • Patent number: 10299276
    Abstract: Example implementations relate to network deployment of devices. For example, a non-transitory computer readable medium storing instructions executable by a processing resource can determine a plurality of deployment thresholds of a plurality of devices, wherein the plurality of deployment thresholds are associated with a type of the plurality of devices. The instructions can cause the processing resource to monitor deployment data associated with the plurality of devices to identify a device with a deployment outlier. The device with the deployment outlier is a device with deployment data that is outside a deployment threshold of the device. The instructions can cause the processing resource to adjust the deployment threshold of the device based on the monitoring.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 21, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Manaswini Lakshmikanth Sugatoor, Ataur Rehman, Gopal Agarwal, Brijesh Kumar Yadav, Manas Sharma, Abhishek Mishra
  • Patent number: 10292202
    Abstract: The present disclosure relates to a method for operating a Discontinuous Reception, DRX, function at a user equipment. The UE is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function. The UE receives, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell. Correspondingly, in response to the received DRX-active instruction, the UE is in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 14, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Joachim Loehr, Prateek Basu Mallick, Hidetoshi Suzuki
  • Patent number: 10292091
    Abstract: A disclosure of the present specification provides a method for detecting a discovery signal. The method is a method for detecting discovery signals from a plurality of transmission points (TP) using the same physical cell identifier (PCID) and may comprise the steps of: determining scrambling identifiers of the discovery signals for the plurality of transmission points on the basis of the PCID which is commonly used by the plurality of transmission points and resource elements (REs) of the discovery signals transmitted from the plurality of transmission points; and demodulating the discovery signals on respective positions of the resource elements using the determined scrambling identifiers to detect the discovery signals.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 14, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyangsun You, Yunjung Yi, Jonghyun Park, Bonghoe Kim, Kijun Kim
  • Patent number: 10292121
    Abstract: This specification relates to an apparatus and method for performing random access in a wireless communication system. This specification discloses a mobile station, including a reception unit for receiving TAG configuration information on which at least one serving cell configured in the mobile station is classified as a Timing Alignment Group (TAG) from a base station and a transmission unit for transmitting a random access preamble to the base station on one representative serving cell within the TAG. In accordance with this specification, a procedure of obtaining a TAV for a serving cell in order to secure and maintain uplink timing synchronization becomes clear, the time taken to obtain uplink synchronization for a serving cell may be reduced, and overhead due to excessive random access attempts may be reduced by obtaining a TAV for a plurality of serving cells through one random access procedure.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: May 14, 2019
    Assignee: Apple Inc.
    Inventors: Ki Bum Kwon, Myung Cheul Jung, Jae Hyun Ahn
  • Patent number: 10291520
    Abstract: A BLE-Mesh device includes a controller, an RF driver for driving the transceiver adapted to be coupled to an antenna, and a counter. The controller implements an applications layer including BLE and Mesh Applications, and a BLE stack and a mesh stack. A redundant traffic suppression relaying algorithm is for waiting for a random time within a selected time window from W1 to a later W2 before attempting to transmit a first packet that contains a unique source (SRC) address and a packet sequence (SEQ) number of a device that is the source of the first packet. If during the random time a packet with both the source device's SRC address and the SEQ number is received, the counter is incremented from an initial count to a current count. After the random time elapses, the current count is compared to a Cthreshold value, and the first packet is transmitted only if the current count<the Cthreshold value.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 14, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arvind Kandhalu Raghu, Kaichien Tsai, Ramanuja Vedantham
  • Patent number: 10285067
    Abstract: Provided are a method for transmitting data in an unlicensed band and a device using the same. A transmission node generates a signal to be transmitted in the unlicensed band, and performs listen before talk (LBT) according to the type of the generated signal. If a wireless medium is idle as a result of the LBT, the transmission node transmits the generated node in the unlicensed band.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 7, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Joonkui Ahn, Seonwook Kim
  • Patent number: 10274601
    Abstract: A communications system comprising a master-node and a slave-node. The master-node comprising: a GNSS receiver configured to provide a GNSS based time reference signal; a master-timing-reference-calibrator configured to determine a master-timing-reference-calibration-signal, for calibrating the master reference timing circuit, based on the GNSS based time reference signal; and a master-reference-timing-circuit configured to provide a master-clock-signal based on the master-timing-reference-calibration-signal, wherein the master-clock-signal is a clock signal for the master-node; and a master-transmitter configured to determine a master-communications-signal using the master-clock signal.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 30, 2019
    Assignee: NXP B.V.
    Inventor: Raf Lodewijk Jan Roovers
  • Patent number: 10263824
    Abstract: A method for estimating a frequency offset of a reception signal and, more particularly, a signal processing method which can be applied to a receiver modem in a wireless communication system, are provided. The method includes using an absolute value within a specific time area in an inverse discrete fourier transform (IDFT) output of a decorrelation signal between a reception signal and a reference signal, and enabling a highly approximate estimation of a frequency offset through only a single decorrelation test using a characteristic of a predetermined permutation of a signal.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngtaek Bae, Hayoung Yang, Joohyun Lee
  • Patent number: 10264536
    Abstract: A mobile station (MS) receives a first reception signal using a first downlink component carrier (DCC) and receives a second reception signal using the second DCC. The first reception signal includes a synchronization signal, a first physical channel, and a first reference signal. The first physical channel and the first reference signal are obtained using a first cell identity. The second reception signal includes a second physical channel and a second reference signal. The second physical channel and the second reference signal are obtained using a second cell identity. The MS acquires information relating the second cell identity, the information being carried by the first reception signal. The MS extracts the information from the first reception signal carried after the mobile station establishes connection in a first cell via a cell search using the synchronization signal. The second DCC is used simultaneously with the first DCC.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 16, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshizo Nogami, Tatsushi Aiba, Shohei Yamada, Hidekazu Tsuboi, Katsunari Uemura, Daiichiro Nakashima, Shoichi Suzuki
  • Patent number: 10257794
    Abstract: A radio station, a radio terminal, and a method for synchronization timer control are provided that can reduce a delay as much as possible until uplink signal resynchronization is done in a case where a plurality of cell groups exist.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 9, 2019
    Assignee: NEC Corporation
    Inventor: Hisashi Futaki
  • Patent number: 10257796
    Abstract: Methods, systems, and devices are described for wireless communication. One method may include receiving, at a first base station, at least one clear channel assessment (CCA)-exempt transmission (CET) indicating timing information of at least a second base station over a shared spectrum. A timing of the first base station may be adjusted based on the received timing information of the second base station. Another method of wireless communication may include identifying a CCA slot assigned to a first base station for a frame, which may be associated with time synchronization, of a shared spectrum. A CCA may be performed at the identified CCA slot for the frame. When the CCA is successful, a first timing information of the first base station may be selectively transmitted during the frame. When the CCA is unsuccessful, a second timing information of a second base station may be listened for during the frame.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 9, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Shimman Arvind Patel, Tao Luo, Naga Bhushan, Peter Gaal, Hao Xu
  • Patent number: 10248087
    Abstract: Disclosed herein are wireless devices operable at intermediate wireless at ranges of thousands of meters, utilizing packets that include a preamble and a data payload. Devices may be such things as keypads, door latches, occupancy monitors, sprinkler controllers and other devices needing a communications link. A digital spread-spectrum frequency hopping rotation is used, wherein packet transmissions rotate through frequency sequences. A spectrum-impact-smoothed channel set is fashioned using sequences that each specify a unique preamble frequency relative to the other sequences and channels. The set is traversed as packets are transmitted, thereby distributing the focused radio-frequency emission impact of packets having long preambles over time. Packet acknowledgments are deferred until a group of packets in a stream has been exchanged. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 2, 2019
    Assignee: Hall Labs LLC
    Inventors: David R. Hall, Craig Boswell, Everett D. Robinson, Joe Fox
  • Patent number: 10251193
    Abstract: Disclosed herein are wireless devices operable at intermediate wireless at ranges of thousands of meters, utilizing packets that include a preamble and a data payload. Devices may be such things as keypads, door latches, occupancy monitors, sprinkler controllers and other devices needing a communications link. A digital spread-spectrum frequency hopping rotation is used, wherein packet transmissions rotate through frequency sequences. A spectrum-impact-smoothed channel set is fashioned using sequences that each specify a unique preamble frequency relative to the other sequences and channels. The set is traversed as packets are transmitted, thereby distributing the focused radio-frequency emission impact of packets having long preambles over time. Observance of a long- and short-period timer permits channel resynchronization between devices.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: April 2, 2019
    Assignee: Hall Labs LLC
    Inventors: David R. Hall, Craig Boswell, Everett D. Robinson, Joe Fox
  • Patent number: 10244475
    Abstract: The present disclosure provides a method (400) for facilitating synchronization in a network. The method (400) comprises, at a network node: receiving (S410) synchronization signals from one or more neighboring network nodes; determining (S420) whether the one or more neighboring network nodes have reached a synchronized state based on the synchronization signals; determining (S430) whether a difference between a current synchronization value of the network node and an average of synchronization values of the one or more neighboring network nodes exceeds a threshold; and obtaining (S440) an updated synchronization value of the network node based on the synchronization values of the one or more neighboring network nodes, regardless of the current synchronization value, when it is determined that the one or more neighboring network nodes have reached the synchronized state and the difference exceeds the threshold.
    Type: Grant
    Filed: September 28, 2014
    Date of Patent: March 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Qianxi Lu, Qingyu Miao, Jonas Kronander, Robert Baldemair
  • Patent number: 10236933
    Abstract: Aspects of the disclosure relate to inter-link interference cancellation for reducing or mitigating interference from signals in different directions (e.g., uplink and downlink directions). A wireless communication device (i.e., a victim device subject to inter-link interference) may determine a time offset or lead time of an interfering signal from an offending device. Based on the determined time offset, the victim device may perform interference cancellation or suppression to reduce or mitigate the interference of the interfering signal. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Wei Zeng, Peter Gaal
  • Patent number: 10222786
    Abstract: A master unit that controls a master axis and a slave unit that controls a slave axis are connected via a communication path to construct a numerical control system. The slave unit acquires a reception time of synchronization information received from the master unit and records a history of the reception time of the synchronization information. Then, when retransmission of transfer of the synchronization information is detected, the slave unit corrects the reception time of the synchronization information based on history data of the reception time and corrects asynchronous position of the slave axis based on a corrected reception time.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: March 5, 2019
    Assignee: Fanuc Corporation
    Inventor: Kouichirou Horiguchi
  • Patent number: 10218470
    Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter or a receiver. In one embodiment, the transmitter is for use with a base station and includes a primary module configured to provide a primary synchronization signal. The transmitter also includes a secondary mapping module configured to provide a secondary synchronization signal derived from two sequences taken from a same set of N sequences and indexed by an index pair (S1, S2) with S1 and S2 ranging from zero to N?1, wherein the index pair (S1, S2) is contained in a mapped set of index pairs corresponding to the same set of N sequences that defines a cell identity group. Additionally, the transmitter further includes a transmit module configured to transmit the primary and secondary synchronization signals.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: February 26, 2019
    Assignee: Intel Corporation
    Inventors: Eko Nugroho Onggosanusi, Anand Ganesh Dabak
  • Patent number: 10219235
    Abstract: Techniques for intra- and inter-operator coordination on a shared communication medium are disclosed. A central coordination server may send an operating mode information message to coordinate operation of different points on the communication medium. An access point may receive such an operating mode information message and adjust one or more communication parameters. An access point may determine a level of timing synchronization with neighboring access points and send a synchronization advertisement message to an access terminal. An access terminal may receive a synchronization advertisement message and perform one or more measurements of the neighboring access points.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Chirag Sureshbhai Patel, Tao Luo, Andrei Dragos Radulescu, Ahmed Kamel Sadek, Tamer Adel Kadous
  • Patent number: 10212678
    Abstract: A method and an apparatus for network synchronization based on network listening are provided. The method comprises receiving signal for synchronization to other cell, performing synchronization to other cell based on a reference signal for synchronization, and receiving and/or transmitting data at a timing based on the synchronization, wherein the reference signal for synchronization is one of CRS, CSI-RS, PSS and/or SSS, DM-RS, and MBSFN-RS.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: February 19, 2019
    Assignee: LG Electronics Inc.
    Inventors: Yunjung Yi, Joonkui Ahn, Byounghoon Kim, Hanbyul Seo, Suckchel Yang
  • Patent number: 10203748
    Abstract: A system includes a first electronic device that activates a first receiver according to a communication schedule that includes a plurality of frames. Each frame is organized according to a grid including a plurality of cells, wherein the cells are associated with a plurality of communication channels and a plurality of time slots. The system also includes a second electronic device that communicates with the first electronic device by transmitting a wake-up packet during a first time slot on a first communication channel. The first time slot and the first communication channel are located at a known position of a respective grid in each frame of the communication schedule. The first electronic device performs an operation based on the wake-up packet after receiving the wake-up packet. The second electronic device also receives a first acknowledgment packet associated with the wake-up packet.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: February 12, 2019
    Assignee: Google LLC
    Inventor: Martin Turon
  • Patent number: 10200973
    Abstract: Embodiments disclose a network accessing method for a mobile terminal, and a mobile terminal. In some implementation manners of the present invention, a mobile terminal reads a help request used for accessing a network by another mobile terminal; sends a beacon channel on a beacon channel resource allocated by a base station of the network, and sends a broadcast signal on a broadcast channel resource corresponding to the beacon channel resource, where the broadcast signal includes an access resource; and receives an access request of the another mobile terminal on the access resource, and assists the another mobile terminal in accessing the network.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 5, 2019
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Xiaodong Yang, Xuelong Wang
  • Patent number: 10187150
    Abstract: Direct communicative coupling of a base station(s) to a remote unit for exchanging communications services with a distributed communications system (DCS) is disclosed. For example, the remote unit may include a remote antenna unit that is provided in a distributed antenna system (DAS) as one type of DCS. In this manner, the remote unit can facilitate distribution of communications services from a base station into the DCS at locations other than at a centralized location in the DCS, such as at a central unit or head-end equipment. Various DCS configurations are possible that include a remote unit supporting the direct communicatively coupling to a base station(s) for distributing communications services in a DCS.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 22, 2019
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Gavriel Mizrahi, Parwiz Shekalim
  • Patent number: 10187169
    Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 22, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Bilal Sadiq, Tao Luo, Juergen Cezanne, Navid Abedini, Krishna Kiran Mukkavilli, Muhammad Nazmul Islam, Sundar Subramanian, Ashwin Sampath
  • Patent number: 10187851
    Abstract: Disclosed are a method and a device for operation based on a power save mode in a WLAN. The method for operation based on a power save mode may comprise steps in which: an STA, which has been switched to an awake state, transmits a PS-poll frame to an AP on the basis of the transmission cycle of a beacon frame; the STA receives an ACK frame from the AP in response to the PS-poll frame; after receiving the ACK frame, the STA overhears a different BSS frame; and within a preset time upon overhearing the different BSS frame, the STA determines whether or not to maintain the awake state on the basis of whether or not a power management control frame has been transmitted from the AP.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: January 22, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Giwon Park, Kiseon Ryu, Jeongki Kim, Hangyu Cho, Suhwook Kim
  • Patent number: 10185350
    Abstract: Embodiments of a multi-processor system and method for synchronization and event scheduling of multiple processing elements are generally described herein. In some embodiments, timing marks are provided to the processing elements and a start-timer command is broadcasted to the processing elements after an initial timing mark. The start-timer command instructs the processing elements to initiate an internal time reference after receipt of a next timing mark. Each of the processing elements maintains a copy of the internal time reference which may be used for synchronized event scheduling.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: January 22, 2019
    Assignee: Raytheon Company
    Inventors: Kassie M. Bowman, Andrew C. Marcum, Philip P. Herb
  • Patent number: 10181919
    Abstract: The present document discloses a synchronization method, herein the method includes a controller determining synchronization link topology information according to physical link topology information of the synchronous network and synchronization information of a synchronous node in the synchronous network; the controller generating a synchronization rule of the synchronous node according to the synchronization link topology information; and the controller transmitting the synchronization rule and/or a request message to the synchronous node in the synchronous network according to the synchronization link topology information. The present document further discloses a controller, a synchronous node, a synchronous network, and a storage medium.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: January 15, 2019
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Junhui Zhang, Li He, Bin Wang, Lin Wen, Hongguang Zhao
  • Patent number: 10182411
    Abstract: Disclosed are a method and an Access Point (AP) for implementing timing synchronization by one or more root timing reference APs in a radio communication network. Each of the one or more root timing reference APs selects an external timing reference source from existing networks that at least partially overlap with the radio communication network, derives a reference timing from the external timing reference source, and propagates the reference timing to neighboring APs in the radio communication network.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: January 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jinhua Liu, Zhan Zhang
  • Patent number: 10182410
    Abstract: Disclosed is a method for transmitting a synchronization signal of device-to-device (D2D) communication. The method for transmitting a D2D synchronization signal of the present application may indicate the state of a terminal, the purpose of transmission of a primary D2D synchronization signal (PD2DSS), or whether to transmit a physical D2D shared channel (PD2DSCH), on the basis of an order in which root indexes of PD2DSSs are transmitted or the value of a root index used by a PD2DSS.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: January 15, 2019
    Assignee: LG Electronics Inc.
    Inventors: Youngtae Kim, Hanbyul Seo, Inkwon Seo
  • Patent number: 10178641
    Abstract: A method including performing a delay measurement of a first round trip delay value of an interface link, the first round trip delay value based on a transmission of a first REC synchronization signal to a RE and when a REC receives a first RE synchronization signal back, wherein frames transmitted by the REC are synchronized based upon the first REC synchronization signal, and frames transmitted by the RE are synchronized based upon the first RE synchronization signal. Calculating a first delay change value between the first round trip delay value and a previous round trip delay value, in response to determining that the first delay change value violates a delay tolerance value, transmitting an offset indicator that indicates an amount of offset the RE is to shift the first RE synchronization signal at a future time, and transmitting frames from the REC after shifting the first REC synchronization signal.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: January 8, 2019
    Assignee: NXP USA, Inc.
    Inventors: Roi Menahem Shor, Avraham Horn, Yael Rozin
  • Patent number: 10177867
    Abstract: Embodiments of the present invention provide a mobile device comprising a slave clock, a receiver unit for receiving one or more frames from a remote device including a master system clock, a transmitter unit for transmitting one or more frames to the remote device, and a clock error correction unit. The clock error correction unit is configured to maintain clock synchronization between the slave clock and the master system clock, and maintain frame alignment for frames transmitted from the transmitter unit.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: January 8, 2019
    Assignee: Audio-Technica U.S., Inc.
    Inventors: Brian K. Fair, Robert T. Green, Jacquelynn A. Green
  • Patent number: 10178568
    Abstract: A method and apparatus for performing measurements in a wireless communication system is provided. The method includes receiving an indication on measurements based on a discovery signal from a network, and performing measurements only in discovery signal occasions. In another aspect, a user equipment (UE) includes a memory, a transceiver, and a processor coupled to the memory and the transceiver, and configured to control the transceiver to receive an indication on measurements based on the discovery signal from the network, and perform measurements only in discovery signal occasions.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: January 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventor: Yunjung Yi
  • Patent number: 10168433
    Abstract: The present disclosure is directed to power conservation via global navigation satellite system (GNSS)-cellular activity synchronization. In general, power may be conserved in a device by setting a GNSS module in a device to operate during a time period when communication resources (e.g., a communication module) in the device are already scheduled to operate, which may conserve power in the device. Synchronization may occur via a notification (e.g., a pulse, a message, etc.) that is transmitted from the communication module to the GNSS module. In this manner, the burden of managing GNSS module operation may be shifted from control resources in the device (e.g., a system module) to the communication module, allowing the system module to remain in a power conservation state (e.g., sleep state) for longer durations and for GNSS signal measurement to occur when the system module is already active.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 1, 2019
    Assignee: Intel IP Corporation
    Inventor: Raghvendra Gupta
  • Patent number: 10165537
    Abstract: Embodiments are directed to synchronizing time among nodes in a network. In one scenario, a first node receives a timing message which provides an indication of the current time as measured by a second node at transmission of the timing message. The first node determines the timing message propagation time between the first and second nodes using a determined transmission frequency of the timing messages, an internal clock reading of a clock that indicates the current time in the first node, and timing and frequency measurements obtained at the first and second nodes. The first node also applies a weighting factor to the current time of the first node to adjust the current time forward or backward, and combines the determined propagation time with the adjusted clock time of the first node to generate a new, synchronized time and transmission frequency, which is broadcasted to other nodes in the network.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: December 25, 2018
    Assignee: L3 Technologies, Inc.
    Inventors: Radivoje Zarubica, Samuel C. Kingston, Osama S. Haddadin, Marc Padilla, Matthew A. Lake
  • Patent number: 10157087
    Abstract: A clock generator circuit includes an internal reference clock generator, a sequential circuit, and a pulse generator circuit. The internal reference clock generator circuit receives a clock buffer signal, a reset signal, and provides a first clock signal. The sequential circuit receives the first clock signal, and provides an internal reference clock signal based on the first clock signal. The pulse generator circuit receives the internal reference clock signal, a slow ring oscillator clock signal, and the reset signal. The pulse generator circuit counts a number of internal reference clock signals cycles for each cycle of the slow ring oscillator clock signal, and generates a pulse signal in response to the number being equal to zero during a cycle of the slow ring oscillator clock signal. The pulse signal toggles the flip-flop clock circuit to recover from a deadlock.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 18, 2018
    Assignee: NXP USA, Inc.
    Inventors: Kumar Abhishek, Srikanth Jagannathan
  • Patent number: 10148461
    Abstract: A receiver baseband processor and method for performing preamble detection and Time-of-Arrival, ToA, estimation for a single-tone frequency hopping random access preamble. The processor FFT processes a received signal and identifies logical tones. For each logical tone, the processor reads received symbols; determines a ToA estimate; forms a statistic based on the ToA estimate; compares the statistic to a preamble threshold; and when the statistic is greater than or equal to the threshold, determines a preamble is present and utilizes the ToA estimate for a timing advance command.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: December 4, 2018
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Xingqin Lin, Yi-Pin Eric Wang, Ansuman Adhikary
  • Patent number: 10147430
    Abstract: An apparatus for decoding an encoded signal includes: an audio decoder for decoding an encoded representation of a first set of first spectral portions to obtain a decoded first set of first spectral portions; a parametric decoder for decoding an encoded parametric representation of a second set of second spectral portions to obtain a decoded representation of the parametric representation, wherein the parametric information includes, for each target frequency tile, a source region identification as a matching information; and a frequency regenerator for regenerating a target frequency tile using a source region from the first set of first spectral portions identified by the matching information.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: December 4, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Neukam, Sascha Disch, Frederik Nagel, Andreas Niedermeier, Konstantin Schmidt, Balaji Nagendran Thoshkahna
  • Patent number: 10148615
    Abstract: A client or user equipment (“UE”) that initiates a plurality of calls using encapsulated media, in response to a first tunnel creation request, from an application associated with a first call, initiates the first call by creating a first tunnel between the client and a server. The UE transmits the encapsulated media associated with the first call over the first tunnel. The UE, in response to a tunnel termination request, from the application, associated with a termination of the first call, waits for an expiration of a predefined persistence period. The UE, in response to a second tunnel creation request, from the application associated with a second call, before the expiration of the predefined persistence period, initiates the second call using the first tunnel. The UE then transmits the encapsulated media associated with the second call over the first tunnel.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: December 4, 2018
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventor: Rolando Herrero
  • Patent number: 10142009
    Abstract: A distributed antenna system includes at least one master unit communicatively coupled to at least one base station and a plurality of remote units located remotely from the at least one master unit. The plurality of remote units are communicatively coupled to the master unit over at least one transport communication link. The system is configured to distribute uplink and downlink signals between a base station and mobile units. A digital unit generates digital samples indicative of spectrum included in at least one of the uplink and downlink signals. A network interface communicates with an external computer. The digital unit is configured to process the digital samples and communicate information indicative of the spectrum to the external computer via the network interface.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 27, 2018
    Assignee: Andrew Wireless Systems GmbH
    Inventors: Oliver Braz, Joerg Stefanik, Jaroslav Hoffman
  • Patent number: 10142828
    Abstract: Disclosed are an apparatus and method of communicating between a mobile device and a host computing device. One example method of operation may include sensing a wireless communication signal at the host computing device, establishing a wireless connection between the mobile device and the host computing device via the wireless communication signal, and migrating at least one application from the mobile device to the host computing device. The ongoing communication between the mobile device and the host computing device enables applications to be executed on one device and accessed via the other device, providing a user with the capability to operate more than one device at a time.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: November 27, 2018
    Assignee: Open Invention Network LLC
    Inventor: Daniel J. Williams
  • Patent number: 10142216
    Abstract: Devices and methods are provided utilizing a low power mode. In some cases, bit loading required to provide a needed bit rate may be calculated by a receiver and sent to a transmitter. In some embodiments, a number of tones used for synchronization symbols may be higher than a number of tones used for data symbols in a low power mode. Other techniques are also presented.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: November 27, 2018
    Assignee: Lantiq Deutschland GmbH
    Inventor: Vladimir Oksman
  • Patent number: 10135945
    Abstract: A method can include detecting a cadence-changing event for a stream of data, the stream of data being provided in chunks having associated chunk boundaries according to an established cadence. An adjusted chunk boundary can be established at a location corresponding to the cadence-changing event to replace a closest scheduled chunk boundary in the stream of data.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: November 20, 2018
    Assignee: CISCO TECHNOLOGY, INC.
    Inventor: Gary Shaffer
  • Patent number: 10136402
    Abstract: A method for determining synchronization of uplink timing in a machine type communication (MTC) system comprising a machine type communication device (MTCD) and a network element is disclosed that takes advantage of the MTCD being at a fixed location relative to the network element. The method includes receiving at the MTCD an uplink timing adjustment value from the network element and storing the uplink timing adjustment value at the MTCD. The MTCD then uses the stored uplink timing adjustment value from a previous uplink transmission for synchronizing uplink timing for a subsequent uplink transmission from the MTCD to the network element even following a period of inactivity of the MTCD, or expiration of any existing maximum uplink timing alignment period permitted for use of the timing adjustment value by the MTCD, or MTCD clock drift.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: November 20, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yu Cao, Ming Jia