Multiple Access (e.g., Tdma) Patents (Class 370/347)
  • Patent number: 10305719
    Abstract: The present invention is designed to improve spectral efficiency in a system that runs LTE/LTE-A by using a carrier in which LBT (Listen Before Talk) is configured. One aspect of the present invention provides a radio base station in a radio communication system where the radio base station and a user terminal communicate by using a carrier in which LBT is configured, and this radio base station has a measurement section that executes LBT in a predetermined carrier sensing duration and acquires an LBT result, and a transmission section that transmits a downlink signal based on the LBT result, and the predetermined carrier sensing duration includes a first carrier sensing duration and a second carrier sensing duration, which is shorter than the first carrier sensing duration.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 28, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuki Takeda, Satoshi Nagata
  • Patent number: 10298342
    Abstract: Disclosed are a communication method based on a time division multiple access communication system, and a terminal. The method comprises: receiving, by a communication terminal, an embedded signalling frame, conducting embedded type information parsing on the embedded signalling frame to obtain an embedded signalling and control information; in accordance with the control information, caching, by the communication terminal, the embedded signalling to corresponding caching regions; and when each corresponding caching region has already been cached with the embedded signalling, conducting embedded type signalling decoding, by the communication terminal, on the embedded signalling in all the caching regions so as to obtain a control signalling. The technical solution of the present invention can shorten the terminal access duration of the time division multiple access communication system, thereby improving the access performance of the time division multiple access communication system.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: May 21, 2019
    Assignee: Hytera Communications Corporation Limited
    Inventors: Yang Yu, Yan Xu, Zhenghua Luo, Fan Yang
  • Patent number: 10292147
    Abstract: A method is provided comprising selecting (301), in a network node, a downlink control channel scheme comprising at least two control channel pools within predefined control symbols. The network node applies (302) time division multiplexing between different control channels and/or related control channel building blocks within each control channel pool. The network node applies (302) frequency division multiplexing between different control channels. The network node allocates (303) control channel resources for at least one control channel based on a control channel type and/or aggregation level.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: May 14, 2019
    Inventors: Esa Tapani Tiirola, Kari Pekka Pajukoski
  • Patent number: 10285205
    Abstract: The invention relates to devices and methods for transmitting data on a radio channel comprising to jointly encode a preamble format with a first random access configuration, forming an extended random access configuration. The extended random access configuration is then transmitted on the radio channel.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 7, 2019
    Assignee: Optis Wireless Technology, LLC
    Inventors: Robert Baldemair, David Astely
  • Patent number: 10277519
    Abstract: Networks with a plurality of independent nodes are useful when the nodes can communicate with one another and with nodes and resources outside the network. The present disclosure addresses ways to encapsulate packets as they move from a sender to a receiver, and also addresses ways for speeding up messages between nodes by orderly queuing and processing of messages. The present disclosure also includes techniques for mapping nodes in a home area network to IP addresses in a local area network.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 30, 2019
    Assignee: Silicon Laboratories Inc.
    Inventors: Anders Brandt, Anders Esbensen, Jakob Buron, Jonas Roum-Møller
  • Patent number: 10278174
    Abstract: Systems, methods, architectures, mechanisms or apparatus for allocating a group of content channels among a plurality of slots of a radio frequency (RF) signal in a manner minimizing the number of slots necessary to support the content channels and number of movements of content channels between slots.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 30, 2019
    Inventor: Thomas J. Holloran
  • Patent number: 10270850
    Abstract: A method to reduce group reformation time and maintain seamless connectivity in a peer-to-peer network at the time of disappearance of the Group Owner (GO). Each of the nodes is provided with an emergency leader list which prioritizes a predetermined number of emergency leader nodes each of which is a client node having intent of acting as an emergency leader, wherein the emergency leader list is prepared right at the time of group formation. The emergency leader nodes broadcast beacons when a leader node disappears from the group without notice. Each of the client nodes barring a first-priority emergency leader node of the emergency leader list connects to a highest priority one of emergency leader nodes detected by the client node.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 23, 2019
    Assignee: NEC Corporation
    Inventors: Chaki Prakash, Masato Yasuda, Norihito Fujita
  • Patent number: 10256855
    Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for signaling interference management information, such as network assisted interference cancelation (NAIC) information as downlink control information (DCI). According to certain aspects, a method is provided for wireless communications by an interfering or potentially interfering base station. The method generally includes generating information for use by a user equipment (UE) in performing interference mitigation when processing a signal from a serving base station and transmitting the information to the UE. The method may further include generating an indication of how the interfering or potentially interfering base station transmits the information and how one or more cells transmit information for use by the UE in performing interference mitigation when processing a signal from the serving base station and transmitting the indication to the UE.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: April 9, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Hao Xu, Wanshi Chen, Peter Gaal, Tingfang Ji, Tao Luo, Arumugam Chendamarai Kannan, Yongbin Wei
  • Patent number: 10243682
    Abstract: Systems and methods for canceling carrier frequency offset (CFO) and sampling frequency offset (SFO) in a radio receive chain are disclosed. In one embodiment, a method is disclosed, comprising: receiving a sub-frame via a radio receive chain in a time domain; performing per-user filtering on the sub-frame to obtain a signal for a particular user; obtaining a CFO correction signal; adding the CFO correction signal in the time domain to perform a CFO correction step on the signal for the particular user; performing an FFT on the output of the CFO correction step to obtain samples in a frequency domain; adding an SFO correction signal in the frequency domain to perform an SFO correction to the output of FFT step; and demodulating the output of SFO correction step, thereby performing CFO and SFO correction while reducing inter-carrier interference (ICI).
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: March 26, 2019
    Assignee: PhasorLab, Inc.
    Inventors: Jian Cui, Joshua C. Park, Paul McFarthing
  • Patent number: 10212686
    Abstract: Systems and methods provide for an increase in hearability by a user equipment (UE, 116). This increase in hearability can be used to improve positioning results. Two different types of positioning subframes can be transmitted by cells in a radio access network (RAN) to improve hearability: measurement subframes and low-interference subframes. The selection of which type of positioning subframe to transmit can be determined algorithmically by the transmitting entity.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: February 19, 2019
    Assignee: Lenovo Innovations Limited (Hong Kong)
    Inventors: Daniel Larsson, Peter Bengtsson, Margaretha Forsgren, Oskar Mauritz, Olof Sjöbergh
  • Patent number: 10206190
    Abstract: A system, apparatus and method for selecting one or more synchronization stations, or masters, in a peer-to-peer communication environment. Synchronization (or sync) stations broadcast periodic synchronization frames to advertise future availability windows, during which devices rendezvous for discovery and communication. Devices that can act as sync stations advertise preference values, which indicate their preference or suitability for the role. All devices execute the same algorithm to sort the preference values and identify a root sync station and any number of branch sync stations; leaf devices synchronize with the root or a branch sync station. This passive synchronization scheme allows individual devices to conserve power, because they need not actively discover other devices and services, and can power off their radios for periods of time without sacrificing discoverability.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: February 12, 2019
    Assignee: Apple Inc.
    Inventors: Robert J. Stacey, Pierre B. Vandwalle, Christiaan A. Hartman
  • Patent number: 10177579
    Abstract: Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 8, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
  • Patent number: 10164840
    Abstract: An approach is provided for configuring multiple interferers. An interference effect minimum protective distance is calculated in response to detection of an input of an interferer parameter. Physical (PHY) layer modeling is performed to individually apply a pathloss caused by a separation distance between an interferer node and a victim and apply a pathloss of each node to an attenuator and a transmitter amplifier in an HW manner. MAC layer modeling is performed to determine a transmission node and a transmission time using Markov chain or determine a transmission node and a transmission time using a result log file of an external MAC simulator and a transmission/reception time is reflected in an HW manner by turning ON/OFF a switch. Multiple correlated interferer signals are generated for analyzing an effect of frequency interference in view of both of PHY and MAC layers.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: December 25, 2018
    Assignee: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Byungjun Jang, Jinsoo Park, Hyungoo Yoon
  • Patent number: 10153864
    Abstract: A relay for a telecommunications system comprises a decoder which responds to received blocks corresponding to successive code words xS,t transmitted simultaneously by sources during T time slots. At each slot t, t=1, . . . , T, a code word xS,t comprises B blocks xS,t(1), xS,t(2), . . . , xS,t(B). The first can be decoded independently of the other blocks, to estimate for each source code words xS,t. It also comprises a detector which detects messages that have been decoded without error and takes a decision and an encoder and transmitter which encodes a signal and transmits it to the destination, which signal is representative only of messages that have been decoded without error. When estimating, the decoder takes account of a signal transmitted by another relay representative of messages from the sources that were decoded without error by that relay. The encoder and transmitter is under the control of the detector in accordance with a selection scheme, after each received block.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 11, 2018
    Assignee: ORANGE
    Inventors: Abdulaziz Mohamad, Raphaël Visoz, Antoine Berthet
  • Patent number: 10103929
    Abstract: The present disclosure teaches methods for digitally transmitting data. An example method may include: receiving a modulated signal containing at least one useful signal or noise or interference signals; repeatedly estimating at least one parameter of the received signal relevant to the demodulation of the useful signal; monitoring changes in the repeatedly estimated parameters; and detecting a useful signal based at least in part on whether one or more changes in the repeatedly estimated parameters satisfy at least one particular, predefined condition.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 16, 2018
    Inventor: Martin Opitz
  • Patent number: 10097470
    Abstract: Network analysis including dynamic smoothing, isolating non-optimally performing systems and downstream aware transactional workflows is described herein. Each of the implementations, separately or together, is able to improve network functionality.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 9, 2018
    Assignee: Synchronoss Technologies, Inc.
    Inventors: Dennis P. Mathew, Janet F. Sala
  • Patent number: 10097315
    Abstract: An acknowledgment (ACK) frame has two parts: a group ACK part and a scheduling information part. In the group ACK part, an ACK/NACK indicator is included for a previous uplink (UL) transmission per station (STA). In the scheduling information part, information included for the following UL transmission per selected STA may comprise, for example, one or more of: a number of selected STAs, a media access control (MAC) address of each selected STA, a data transmission duration per selected STA, a transmission rate per selected STA, a request transmission duration, a pilot transmission order, or a STA transmission order.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: October 9, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Yan Zhou, Santosh Paul Abraham, Gwendolyn Denise Barriac, Simone Merlin, Rahul Tandra, Hemanth Sampath
  • Patent number: 10069742
    Abstract: A method for estimating the probability that a data packet wirelessly transmitted from a transmitter, which is a traffic infrastructure object or a vehicle, to a receiver will be received. The method includes estimating a signal quality of the data packet and estimating the probability that the data packet will be received on the basis of the estimated signal quality.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: September 4, 2018
    Assignee: Volkswagen AG
    Inventor: Burak Simsek
  • Patent number: 10063360
    Abstract: A method is provided for generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system supporting carrier aggregation. The UE receives, from a base station (BS), a plurality of codewords through a plurality of downlink carriers. Each of the plurality of downlink carriers support one or more codewords according to a transmission mode. The transmission mode is independently configured per each of the plurality of downlink carriers. The UE determines a total number of ACK/NACK bits, and generates a sequence of the ACK/NACK bits according to the total number of the ACK/NACK bits. The UE determines the total number of ACK/NACK bits based on a total number of the plurality of downlink carriers and a type of each transmission mode independently configured per each of the plurality of downlink carriers.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 28, 2018
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Patent number: 10057814
    Abstract: A device may include a receiver configured to receive messages about first transmission rates provided by cooperation devices configured for device-to-device (D2D) communications in a radio communication system supporting the D2D communications; a determiner configured to determine second transmission rates for the device to suggest to the cooperation devices based on the first transmission rates; and/or a transmitter configured to transmit messages about the second transmission rates to the cooperation devices. The determiner may be further configured to change the second transmission rates until the first transmission rates converge. The determiner may be further configured to determine a final transmission rate suggested to the cooperation devices based on the converged first transmission rates.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 21, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hyun Lee, Sung-jin Kim
  • Patent number: 10038535
    Abstract: A method and apparatus for transmitting a frame on the basis of a sounding procedure is disclosed. The method for transmitting the frame on the basis of a sounding procedure in a wireless LAN may comprise the steps of: transmitting an NDPA frame to each of multiple STAs by an AP wherein the NDPA frame notifies of the transmission of NDP; transmitting the NDP to each of the multiple STAs by the AP; receiving, by the AP, multiple feedback frames transmitted through multiple transmission sources allocated to the multiple STAs in time sources overlapped by the multiple STAs, respectively; and transmitting, by the AP, multiple downlink frames to the multiple STAs respectively.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: July 31, 2018
    Inventors: Jinyoung Chun, Kiseon Ryu, Wookbong Lee, Jinsoo Choi, Dongguk Lim, Hangyu Cho, Suhwook Kim
  • Patent number: 10020974
    Abstract: A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 10, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiaofeng Zhang, Tao Ouyang, Dao Pan, Xiaoshu Si, Syed Rahman
  • Patent number: 9992801
    Abstract: Embodiments of a controller device and method for channel contention in a wireless network are generally described herein. The controller device may determine if a collision would occur for expected signal transmissions of a group of virtual devices, which may include one or more virtual access points (VAPs) and/or virtual stations (VSTAs). The determination of the collision may be based on transmission times and/or back-off intervals of the virtual devices. The controller device may transmit collision control messages to indicate whether colliding virtual devices are to delay signal transmissions. The VAPs may be configured to communicate with the VSTAs as access point (AP) instantiations. The VAPs may be configured to use different service set identifiers (SSIDs) and/or media access control (MAC) addresses in such communication.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 5, 2018
    Assignee: Intel Corporation
    Inventors: Chittabrata Ghosh, Yaron Alpert, Alex Pisarevski
  • Patent number: 9980284
    Abstract: In a wireless (e.g., machine-to-machine) network, items of user equipment compete for wireless communication resource slots (“resources”). In a contention period, an item of user equipment (a UE) sends a first signal to a base station using a first resource. The first resource is mapped to a second resource in a data transmission period. If the base station successfully receives the first signal, it sends a second signal to the UE to confirm that the UE has been awarded the second resource and can transmit data in the data transmission period.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 22, 2018
    Assignee: Huawei Technologies Co., LTD.
    Inventors: Petar Djukic, Amine Maaref
  • Patent number: 9980168
    Abstract: This application discusses apparatus and methods of saving power using a quadrature receiver by enabling a single string reception mode of the quadrature receiver. In an example, a receiver for receiving communication information can include an analog front end configured to receive a modulated, information-carrying radio frequency signal at a first frequency band and to provide a digital representation of the modulated, information-carrying radio frequency signal at a second frequency band, a digital front end configured to receive the digital representation at the second frequency and to provide the communication information, for example, to a baseband processor. In a first processing mode of the receiver, the analog front end can provide either one of in-phase symbol information of the modulated, information-carrying radio frequency signal or quadrature symbol information of the modulated, information-carrying radio frequency signal at the second frequency band.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: May 22, 2018
    Assignee: Intel Corporation
    Inventors: David Arditti Ilitzky, Thomas A. Tetzlaff, Edgar Borrayo, Stefano Pellerano
  • Patent number: 9973325
    Abstract: A method, system, and computer program product is provided for transmitting output symbols in sub-slots that each have a pre-determined length. A UE (102) generates (1402) a first output symbol having a first symbol length, and transmits (1404) the first output symbol with a guard period having a guard period length. During the guard period, no transmission is made by the UE (102). The sum of the first symbol length and the guard period length is less than or equal to the predetermined length. Further, the UE (102) generates (1406) a plurality of other output symbols that each have the predetermined length. Then, immediately following the transmission of the first output symbol, the UE transmits (1408) the plurality of other output symbols. Such a resulting fractional guard period located either at the beginning or the end of a subframe prevents collision or overlapping of D2D communication and normal UE to eNB transmissions.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: May 15, 2018
    Inventor: Stefano Sorrentino
  • Patent number: 9974060
    Abstract: Methods, base stations and access terminals for uplink signalling are provided. Resource request channel characteristics such as location in time-frequency, sequence, time slot, are assigned to each access terminal to distinguish their resource requests from the resource requests of other access terminals. Access terminals make requests using a resource request on a resource request channel having the assigned characteristics. The base station can then determine which access terminal transmitted the resource request based on the resource request channel characteristics of the resource request channel upon which the resource request was received. The base station then transmits a response to the request which may for example be a new resource allocation, a default allocation or a renewal of a previous allocation.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 15, 2018
    Assignee: Apple Inc.
    Inventors: Robert Novak, Mo-Han Fong, Sophie Vrzic, Jun Yuan, Dong-Sheng Yu, Jianglei Ma
  • Patent number: 9936464
    Abstract: Generally, this disclosure provides devices, systems and methods for improved transmit power adaptation for platforms with wireless communication capability. A device may include a memory to store a first transmission (Tx) power level and a Tx power determination module to receive a second Tx power level from a device driver, the second Tx power level provided from a Basic Input/Output System (BIOS) associated with a platform hosting the device. The Tx power determination module may further determine a third Tx power level based on a comparison of the first Tx power level and the second Tx power level. The device may further include a radio frequency (RF) transmission module to transmit a wireless signal at the third Tx power level.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: April 3, 2018
    Inventors: Wilfrid D'Angelo, Fabrice Labourasse, David Birnbaum, Izoslav Slava Tchigevsky, Nawfal Asrih
  • Patent number: 9930702
    Abstract: A mobile radio (MR) transmits short data during an active time division multiple access (TDMA) call in a wireless communication system. The mobile radio receives first communication media (CM) of the active call in a first slot of a first outbound TDMA logical channel (FLC) of an outbound traffic frequency having a slotting ratio n>=2. The MR transmits short data during at least a portion of a second slot of the FLC, pending short data on an inbound logical data channel of an inbound traffic frequency. The MR then receives second CM of the active call in a third slot of the FLC, and receives missed CM of the active call without specifically identifying the missed CM in any request for re-transmission of missed CM, in a first slot of a second outbound TDMA logical channel of the outbound traffic frequency.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 27, 2018
    Inventors: Grzegorz Szyszka, Przemyslaw Bogucki, Krzysztof Minior, Bartlomiej Olejak, Grzegorz Marcin Pawlik, Mariusz R. Wawrowski
  • Patent number: 9927489
    Abstract: Approaches for testing phase rotators are provided. A circuit for testing phase rotators includes a compare element including a first input and a second input, wherein the compare element is configured to compare a first phase of a first signal provided at the first input to a second phase of a second signal provided at the second input. The circuit also includes a first test bus connected to the first input and a second test bus connected to the second input.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 27, 2018
    Inventors: Robert G. Gerowitz, Sarah B. Higgins, Joseph A. Iadanza
  • Patent number: 9924471
    Abstract: Methods and apparatuses are provided for facilitating dynamic measurement power offset adjustments for use in reporting channel quality feedback. A user equipment may generate and send a plurality of channel quality indicator (CQI) values to a base station. The base station determines whether at least some of the received CQI values are outside of an upper or lower threshold value. If at least some of the received CQI values are outside the upper or lower threshold value, the base station can transmit an adjusted measurement power offset to the user equipment. On receipt of the adjusted measurement power offset, the user equipment generates subsequent CQI values using the adjusted measurement power offset.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Andrea Garavaglia, Long Duan, Jochen Hoidis, Amer Catovic
  • Patent number: 9900895
    Abstract: A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by controlling and separating the LTE signaling and the non-LTE signaling using dedicated time intervals to separate LTE signaling from non-LTE signaling. In addition, coexistence mode handover procedures are provided which use threshold-based triggering events to avoid coexistence interference and to prevent ping-pong effects by establishing a “keeping time” parameter so that a non-interfering network node does not switch back to an interfering network node after handoff.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 20, 2018
    Assignee: BlackBerry Limited
    Inventors: Changhoi Koo, Jun Li, Zhijun Cai
  • Patent number: 9894705
    Abstract: Radio access networks and particularly enhancements for diverse data applications may benefit from a self-adjusting discontinuous reception (DRX) pattern. According to certain embodiments, for example, a method may include configuring a discontinuous reception pattern of a user equipment and adjusting the discontinuous reception pattern at the user equipment autonomously with respect to a base station.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: February 13, 2018
    Inventors: Elena Virtej, Jari Petteri Lunden, Lars Dalsgaard
  • Patent number: 9880261
    Abstract: The disclosure provides a radar apparatus for estimating a position and a velocity of a plurality of obstacles. The radar apparatus includes a slave radar chip. A master radar chip is coupled to the slave radar chip. The master radar chip includes a local oscillator that generates a transmit signal. The slave radar chip receives the transmit signal on a first path and sends the transmit signal back to the master radar chip on a second path. A delay detect circuit is coupled to the local oscillator and receives the transmit signal from the slave radar chip on the second path and the transmit signal from the local oscillator. The delay detect circuit estimates a routing delay from the transmit signal received from the slave radar chip on the second path and from the transmit signal received from the local oscillator.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 30, 2018
    Inventors: Karthik Subburaj, Brian Ginsburg, Karthik Ramasubramanian
  • Patent number: 9877352
    Abstract: The present disclosure concerns radio communication. More particularly, the present disclosure inter alia introduces the possibility for a user equipment (UE) to apply a temporary DRX cycle during the time period when the UE transitions from an IDLE mode to a CONNECTED mode. Thus, the disclosure presents an example method performed by a UE. The UE is configured to be either in an IDLE mode or in a CONNECTED mode. The method implemented in the UE comprises applying the temporary DRX cycle during the time period when the UE is in transition from the IDLE mode to the CONNECTED mode.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: January 23, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Rune, Anna Larmo, Riikka Susitaival
  • Patent number: 9843456
    Abstract: A node (260) of a cellular network node sends data units to a group of base stations (200). Each data unit is configured for conveying multicast data to be sent by the base stations (200) in a synchronized manner at a starting time indicated in the data unit. For each of the data units, the node (260) determines the starting time as the sum of the time of sending the data unit from the node and an offset value. Further, the node (260) obtains feedback information from the base stations (200) of the group. The feedback information indicates a deviation of the starting time indicated in one of the data units (411) from an earliest possible time of sending the multicast data from the data unit (411) by the base stations (200) of the group. Depending on the feedback information, the node (260) adapts the offset value.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 12, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ibtissam El Khayat, Prabaharan Kanesalingam, Jie Ling
  • Patent number: 9844055
    Abstract: A wireless transmit/receive unit (WTRU) includes circuitry configured to receive information from a base station indicating an assignment of periodic time slots to transmit sounding signals and circuitry configured to transmit sounding signals to the base station in the assigned periodic time slots in response to the received information, wherein a timing of transmission of the sounding signals in response to the received information differs between a time division duplex mode and a frequency division duplex mode, and wherein the transmitted sounding signals are distinguishable from sounding signals from other WTRUs.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 12, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Christopher R Cave, Marian Rudolf
  • Patent number: 9838975
    Abstract: Disclosed is a method for transmitting and receiving a signal by a device to device (D2D) terminal in a wireless communication system, according to an embodiment of the present invention, the method comprising the steps of: calculating a power headroom; and reporting the power headroom to a base station, wherein, if a terminal performs an uplink transmission to the base station on a first component carrier and performs a D2D transmission on a second component carrier, the terminal, when calculating the power headroom, considers transmission power related to a minimum coverage for D2D communication.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: December 5, 2017
    Inventors: Hyukjin Chae, Hanbyul Seo, Joonkui Ahn, Byounghoon Kim, Yunjung Yi
  • Patent number: 9839040
    Abstract: A system includes a server configured to monitor wireless interference between at least two media content delivery devices. The server coordinates communication with the media content delivery devices to reduce wireless interference, and the communication is coordinated according to requirements of media content requests received from the media content delivery devices. A method includes monitoring wireless interference between at least two media content delivery devices and coordinating communication with the media content delivery devices to reduce wireless interference.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 5, 2017
    Assignee: EchoStar Technologies L.L.C.
    Inventors: Christopher William Bruhn, Phuc H. Nguyen
  • Patent number: 9820194
    Abstract: A method includes receiving, at a network entity, a circuit switched paging request, wherein the paging request is for a UE that is attached to a packet data network and is registered to a circuit switched network. The method also includes obtaining a calling party number from the circuit switched network, the calling party number being information corresponding to a call from a party calling the UE, and generating a circuit service notification application message comprising more than one message of the circuit switch technology, such that one of message comprises the calling party number. Another operation relates to transmitting, from the network entity to the UE, the circuit service notification application message, the transmitting occurring while the UE is attached to the packet data network and while the UE is operating in an active state for receiving and/or transmitting packet data or signaling messages.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 14, 2017
    Inventor: Li-Hsiang Sun
  • Patent number: 9820263
    Abstract: A shared control channel structure includes at least one control channel to be allocated at least to a user for at least one of uplink and downlink directions in a network, which the at least one control channel is arranged as at least a part of a modular structure comprising of modular code blocks on at least two different sizes. One of such modular structures may be represented as a tree structure in particular, where each of the modular code blocks define one node of the tree, respectively.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: November 14, 2017
    Inventors: Mika Rinne, Frank Frederiksen, Troels Kolding, Samuli Visuri
  • Patent number: 9813991
    Abstract: A system and method for managing power in a subnet having a hub in communication with one or more nodes is disclosed. The hub and nodes communicate using one or more non-contention access methods, such as scheduled, polled or posted access. The node may enter a sleep or hibernation state while no scheduled, polled or posted allocation interval is pending. The hibernation state allows the node to hibernate through one or more entire beacon periods. In the sleep state, the node may be asleep between any scheduled, polled and posted allocation intervals for the node or during another node's scheduled allocation interval in a current beacon period. By selecting which access scheme is in use, the node and hub can increase the node's chances to be in hibernation or sleep state and minimize power consumption.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 7, 2017
    Inventor: Jin-Meng Ho
  • Patent number: 9813920
    Abstract: Methods, devices, and computer program products for transmitting and receiving discovery messages in a wireless communication device are described herein. One aspect of the subject matter described in the disclosure provides a method of discovering devices in a wireless communication system. The method includes receiving a first discovery message from a first device of a device cluster comprising a plurality of devices during a first discovery interval. The first discovery message includes information associated with the device cluster. The method further includes transmitting a discovery trigger message in response to the first discovery message. The method further includes receiving a second discovery message from at least one device of device cluster during a second discovery interval. The second discovery message is configured to advertise a plurality of services provided by the at least one device of the device cluster in response to the discovery trigger message.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM, Incorporated
    Inventors: Santosh Paul Abraham, George Cherian
  • Patent number: 9807032
    Abstract: A local area network system that includes modular, multi-frequency, multi-channel, upgradable transmission nodes. The transmission nodes may include one or more independent RF modules and may be configured to include, for example, 802.11ac and may evolve to LTE and other technologies and frequency bands.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: October 31, 2017
    Inventor: Robert W Merola
  • Patent number: 9806814
    Abstract: An optical transceiver in an optical communications network, comprising a receiver configured to receive an optical signal comprising an X-polarization component and a Y-polarization component. The optical transceiver further comprises a processor coupled to the receiver and configured to determine a chromatic dispersion (CD) estimate and a local oscillator frequency offset (LOFO) estimate based on a relationship between a plurality of CD values and a plurality of LOFO values. The optical transceiver further comprises a transmitter coupled to the processor and configured to transmit the CD estimate, the LOFO estimate, and the optical signal to a downstream component in the optical communications network.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 31, 2017
    Assignee: Futurewei Tecnologies, Inc.
    Inventors: Murali Krishnan, Qing Guo, Fei Zhu, Yu Sheng Bai
  • Patent number: 9794058
    Abstract: A wireless media distribution system is provided comprising an access point (6) for broadcasting media and a plurality of stations (2) for reception and playback of media. Each station is configured for receiving and decoding a timestamp in a beacon frame transmitted repeatedly from the access point. This is used to control the output signal of a station physical layer clock (12) which is then used as a clock source for an application layer time synchronisation protocol. This application layer time synchronisation protocol can then be used in the station to control an operating system clock (8) for regulating playback of media.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: October 17, 2017
    Assignee: Imagination Technologies Limited
    Inventor: Ian R. Knowles
  • Patent number: 9794957
    Abstract: An apparatus and a method are described, by which at least one bearer containing data for a user equipment is received and a connection to the user equipment is provided via a radio access network. Furthermore, transmission of the data for the user equipment is scheduled based on a scheduling parameter associated to the bearer. Moreover, parameter change information associated to the bearer is detected, the parameter change information indicating how the scheduling parameter is to be changed, and the parameter change information for the bearer is stored in the memory.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: October 17, 2017
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Peter Szilagyi, Csaba Vulkan, Norbert Radics
  • Patent number: 9787584
    Abstract: According to the present invention, there is disclosed a method for reserving data transmission from a transmitting node to a receiving node in a receiver-initiated asynchronous MAC (Medium Access Control) protocol. The method includes receiving a base beacon frame from the receiving node and when transmitting a data frame to the receiving node, transmitting the data frame, with a reserved field value set in a portion of a header of the data frame.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 10, 2017
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Tae Jin Lee, Ji Hyoung Ahn, Min Gyu Lee, Se Houn Lee
  • Patent number: 9787390
    Abstract: A data transmission method and a device are disclosed. The method includes: receiving, by a third-party node in a specified first spectrum, a request message sent by a network side device that belongs to an operator different from an operator of the third-party node, where the request message is used to request the third-party node to forward data that is transmitted between the network side device and a terminal served by the network side device; returning, by the third-party node, a response message to the network side device in the first spectrum after the third-party node determines to accept the request of the network side device; and forwarding, by the third-party node in a second spectrum, the data that is transmitted between the network side device and the terminal, where the second spectrum is a spectrum of the operator to which the network side device belongs.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 10, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bolun Guo, Xinrui Feng, Yong Wu
  • Patent number: 9781737
    Abstract: Methods and apparatus for minimizing scheduling collisions between networks. In one embodiment, the networks are substantially unsynchronized, and during hybrid network operation (e.g., LTE and CDMA 1X operation), a mobile device can place CDMA 1X voice calls while registered with the LTE network. However, since the LTE and CDMA 1X networks are not coordinated, the mobile device will experience scheduling collisions. In one variant, the LTE network accounts for predictable behaviors (such as CDMA 1X paging), and schedules low priority tasks during likely time interval conflicts. Consequently, even though the mobile device must tune away from the LTE network to check CDMA 1X pages, overall LTE network performance is minimally affected.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: October 3, 2017
    Assignee: Apple Inc.
    Inventors: Li Su, Madhusudan Chaudhary, Jianxiong Shi, Longda Xing