Frequency Division Patents (Class 370/281)
  • Patent number: 11032833
    Abstract: The disclosure provides a method and a device for dynamic scheduling in a User Equipment (UE) and a base station. The UE detects a first signaling. The first signaling is a physical layer signaling. The first signaling includes a first bit block, and a number of bits in the first bit block is related to a transmission mode of the first signaling. The transmission mode of the first signaling is one of multiple candidate modes. For the first candidate mode, the first bit block is transmitted multiple times; and for the second candidate mode, the first bit block is transmitted once. The disclosure establishes a relationship between a payload size of the first signaling and a transmission mode of the first signaling, thus reducing the payload size of the first signaling, simplifying the complexity of blind decoding of control signalings, and improving transmission efficiency and spectrum efficiency of the system.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 8, 2021
    Assignee: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
    Inventor: XiaoBo Zhang
  • Patent number: 11032119
    Abstract: Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed sequence of samples to be transmitted using conventional OFDM or transformed OFDM. The selection of a transform function for transforming the coded and modulated sequence of samples may be based on optimizing the transform function for particular operating conditions between the transmitter and receiver. In some embodiments of the invention OFDM and time transformed OFDM are multiplexed in time and/or frequency in a transmission frame. In some embodiments of the invention a pilot pattern is provided in which the pilot are sent using OFDM and data is sent using OFDM and/or transformed OFDM.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: June 8, 2021
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Wen Tong, Ming Jia, Hua Xu, Peiying Zhu, Hang Zhang
  • Patent number: 11032850
    Abstract: Certain aspects of the disclosure relate to techniques and apparatus for improving random access for SRS switching in a wireless network. Prior to transmitting a SRS, a UE may interrupt communication on a first carrier to switch from the first carrier to a second carrier to transmit a PRACH. To reduce interruption to the first carrier, the UE may use the beginning symbol(s) of a UpPTS on the second carrier to transmit the PRACH. In addition, to reduce interruption to the first carrier, the UE may monitor for another PDCCH order before transmitting another PRACH. Further, aspects of the present disclosure provide techniques and apparatus for jointly triggering SRS transmissions and performing power control for SRS transmissions. A BS may trigger SRS transmissions from multiple UEs, trigger SRS transmissions from multiple carriers from the same UE at the same time and/or perform power control separately for each carrier.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 8, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Alberto Rico Alvarino, Peter Gaal, Wanshi Chen, Hao Xu, Jing Sun
  • Patent number: 11019620
    Abstract: Aspects of the present disclosure provide for the pairing of an inter-band carrier with a time division duplex (TDD) carrier. If the paired band is a frequency division duplex (FDD) band, then base stations and mobile devices may transmit and receive additional thin control channels on FDD carriers to enable full duplex operations. If the paired band is a TDD band, then a conjugate or inverse carrier may be used such that full duplex, or a close approximation thereto, is achieved. With the introduction of a paired channel and fast control channels, rapid uplink/downlink switching may be achieved for TDD carriers efficiently and effectively. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 25, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, John Edward Smee, Joseph Binamira Soriaga, Naga Bhushan, Peter Gaal, Alexei Yurievitch Gorokhov, Krishna Kiran Mukkavilli, Peter Ang, Michael Alexander Howard, Rotem Cooper
  • Patent number: 11013000
    Abstract: Aspects of the present disclosure provide for the pairing of an inter-band carrier with a time division duplex (TDD) carrier. If the paired band is a frequency division duplex (FDD) band, then base stations and mobile devices may transmit and receive additional thin control channels on FDD carriers to enable full duplex operations. If the paired band is a TDD band, then a conjugate or inverse carrier may be used such that full duplex, or a close approximation thereto, is achieved. With the introduction of a paired channel and fast control channels, rapid uplink/downlink switching may be achieved for TDD carriers efficiently and effectively. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 18, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, John Edward Smee, Joseph Binamira Soriaga, Naga Bhushan, Peter Gaal, Alexei Yurievitch Gorokhov, Krishna Kiran Mukkavilli, Peter Ang, Michael Alexander Howard, Rotem Cooper
  • Patent number: 11012270
    Abstract: Techniques are disclosed for adaptively determining windowing functions and/or filtering functions in a system that uses multiple multicarrier modulation numerologies. According to one aspect, a method comprises determining (1610) first and second quantities of frequency resources needed for first and second multicarrier modulation schemes, respectively, the first and second multicarrier modulation schemes having first and second subcarrier spacings, respectively, the first subcarrier spacing differing from the second subcarrier spacing; determining (1620) a first windowing function and/or first filtering function, for use with the first multicarrier modulation scheme, based on at least one of the first and second quantities of frequency resources; and transmitting (1630) a multi-mode multi-carrier modulation signal in a frequency band, during the first interval, using the first and second multicarrier modulation schemes and the first and second quantities of frequency resources.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 18, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt Lindoff, Shehzad Ali Ashraf, Robert Baldemair
  • Patent number: 10951388
    Abstract: A device may receive a signal from a wireless station; and determine a network-permitted Time Division Duplex (TDD) uplink duty cycle based on the signal. If the determined network-permitted TDD uplink duty cycle is greater than a maximum allowable TDD uplink duty cycle for the device, when the device performs TDD uplink transmission after receiving a scheduling grant from the wireless station, the device may decrease the TDD uplink duty cycle of the device or may decrease a time-average transmission power of the device.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 16, 2021
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Andrew E. Youtz, Xin Wang, Lily Zhu, Hui Zhao
  • Patent number: 10951373
    Abstract: A method for obtaining a quantity of resource elements in a communication process, comprising: determines a downlink control information format of downlink control information, obtains, based on the downlink control information format, a quantity of resource elements occupied by a demodulation reference signal (DMRS); and determines a size of transport block (TBS) based on the quantity of resource elements occupied by the DMRS.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 16, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ting Wang, Yongzhao Cao, Yi Wang, Hao Tang, Zhenfei Tang
  • Patent number: 10924163
    Abstract: Network devices and systems in 5G advance long term evolution (LTE) and new radio (NR) infrastructures utilize beam management operations to ensure communications for channel state information (CSI) reporting by a user equipment (UE). CSI report configuration reporting settings are processed based on a codebook subset restriction to indicate pre-coding matrix indicators (PMIs) that are restricted and non-restricted for PMI reporting associated with a rank indicator (RI). Based on the codebook subset restriction, an advanced CSI codebook or a new radio (NR) codebook is generated to be transmitted on non-restricted beams of the codebook subset restriction.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: February 16, 2021
    Assignee: Apple Inc.
    Inventors: Alexei Dayvdov, Gregory V. Morozov, Yushu Zhang, Victor Sergeev, Wook Bong Lee, Dmitry Dikarev
  • Patent number: 10868660
    Abstract: At least one condition associated with radio communication of a radio device (10-A, 10-B-, 10-C, 100) with a further radio device (10-A, 10-B-, 10-C, 100) is monitored. In response to the at least one condition being met, full-duplex operation is activated for the radio communication of the radio device (10-A, 10-B-, 10-C, 100) with the further radio device (10-A, 10-B-, 10-C, 100). The full-duplex operation comprises transmission of a first signal on a carrier frequency from the radio device (10-A, 10-B-, 10-C, 100) to the further radio device (10-A, 10-B-, 10-C, 100) and simultaneous transmission of a second signal on the same carrier frequency from the further radio device (10-A, 10-B-, 10-C, 100) to the radio device (10-A, 10-B-, 10-C, 100).
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: December 15, 2020
    Assignee: SONY CORPORATION
    Inventors: Peter Karlsson, Rickard Ljung
  • Patent number: 10862550
    Abstract: An apparatus is disclosed that includes a processor configured to acquire subarray information indicating a plurality of subarrays usable for multilayer Multi-Input Multi-Output (MIMO), notify a terminal apparatus of information related to the subarray, wherein the terminal apparatus is a terminal apparatus that performs a report related to a combination of two or more subarrays included in the plurality of subarrays, and wherein the plurality of subarrays includes two or more subarrays that share one or more antenna ports.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 8, 2020
    Assignee: Sony Corporation
    Inventor: Hiroaki Takano
  • Patent number: 10785807
    Abstract: A method by which a terminal transmits a random access channel (RACH) signal in a wireless communication system comprises the step of transmitting the RACH signal to a base station according to an RACH format corresponding to a specific RACH subframe among previously defined RACH formats, wherein the method is configured such that a start point or an end point of the RACH signal in a time domain is differentiated according to whether a downlink control zone and an uplink control zone within the RACH subframe are punctured in a specific frequency band between the previously defined RACH formats.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 22, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Hojae Lee, Sangrim Lee, Dongkyu Kim, Kwangseok Noh, Kijun Kim
  • Patent number: 10750554
    Abstract: A terminal device, a base station device, a communication system, a measurement method, and an integrated circuit, which are capable of efficiently performing Sidelink Direct Discovery, are provided. In the terminal device, a reception unit is configured to receive an RRC connection reconfiguration message including a first configuration related to Sidelink Direct Discovery, and in a case where the first configuration includes frequency information, to attempt to acquire configuration information about monitoring of a Sidelink Direct Discovery announcement at a frequency indicated by the frequency information, using a timer configured to count a predetermined time and while the timer is counting, by acquiring system information to be broadcast at the frequency.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 18, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Tsuboi, Katsunari Uemura, Shohei Yamada
  • Patent number: 10728924
    Abstract: A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: July 28, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Patent number: 10694393
    Abstract: There is provided network units operating based on different radio access technologies and one or more associated wireless communication devices. In downlink, DL, a network unit of the first RAT is configured to transmit a DL carrier in a frequency channel of the first RAT that is higher than the frequency channel of the second RAT. Correspondingly, a wireless communication device is configured to receive and demodulate and/or decode the DL carrier of the first RAT. In the uplink, UL, the wireless communication device is configured to transmit an UL carrier of the first RAT in an UL frequency channel overlapping with the UL frequency channel of the second RAT. Correspondingly, the network unit is configured to receive and demodulate and/or decode the UL carrier of the first RAT.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: June 23, 2020
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Robert Baldemair, Stefan Parkvall, Gunnar Mildh
  • Patent number: 10673567
    Abstract: The present disclosure discloses a transmission processing method and device. The transmission processing method includes: performing uplink scheduling for a User Equipment (UE) in accordance with an uplink scheduling criterion, and determining whether to apply puncturing in accordance with an uplink scheduling result and/or determining whether to instruct the UE to apply the puncturing via signaling in accordance with the uplink scheduling performed for the UE. The uplink scheduling criterion is preset and is for limiting the uplink scheduled UE to reduce a number of puncturing operations. In the prior art, an uplink scheduled UE that is transmitting data needs to be instructed to apply puncturing in a fixed position of a subframe whenever a new uplink scheduled UE appears in a wireless communication system, resulting in a technical problem of a low transmission rate, which is solved in the present disclosure.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 2, 2020
    Assignee: BAICELLS TECHNOLOGIES CO. LTD.
    Inventor: Xiang Yun
  • Patent number: 10665954
    Abstract: The present invention realizes a thin dual-polarized leaky-wave antenna which uses a CRLH (Composite Right/Left Handed) transmission line and capable of obtaining a high tilt angle in a directivity in the vertical plane while suppressing cross polarization and side lobe at a target operation frequency. Specifically, the present invention provides a leaky-wave antenna including a dielectric substrate, a ground surface formed on a bottom surface of the dielectric substrate, a ground unit formed on a top surface of the dielectric substrate, and a CRLH (Composite Right/Left Handed) transmission line which is arranged adjacent to the ground unit and formed on a top surface of the dielectric substrate and uses a coplanar transmission line with a ground, in which a series capacitor (CL) and a parallel inductor (LL) constituting the CRLH transmission line are formed on a top surface of the dielectric substrate.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 26, 2020
    Assignee: Denki Kogyo Company, Limited
    Inventors: Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima, Naobumi Michishita, Keizo Cho
  • Patent number: 10651968
    Abstract: Disclosed in the present application are a data transmission method and a communication device. The method comprises: determining transmission parameters for transmitting the target transport block, the transmission parameters comprising a target modulation and coding scheme (MCS), the number of target physical resource blocks (PRBs), and information about PRB resource overhead; determining, according to the transmission parameters, the target transport block size (TBS) of the target transport block; and sending or receiving, according to the target TBS, the target transport block. Said method is able to determine, on the basis of different resource overhead, TBS information used for data transmission.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: May 12, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Hai Tang, Hua Xu
  • Patent number: 10616858
    Abstract: Disclosed are techniques for determining a location of a user equipment (UE) communicating over a shared communication medium in unlicensed spectrum. In an aspect, the UE receives a unique or distinct positioning reference signal (PRS) configuration for each of a plurality of secondary cells, where each PRS configuration includes a common set of positioning occasions and where the plurality of secondary cells are in contention for the common set of positioning occasions. The UE attempts to measure a PRS for each of the PRS configurations in each positioning occasion and typically measures a PRS for just one PRS configuration in each positioning occasion due to the contention for positioning occasions. The UE reports the PRS measurements and the identities of the measured PRS configurations to a location server which uses the reported data to determine a location for the UE.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: April 7, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Hem Agnihotri, Stephen William Edge, Bapineedu Chowdary Gummadi
  • Patent number: 10588145
    Abstract: A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Patent number: 10587392
    Abstract: A method of wireless communication using half duplex frequency division duplex (HD-FDD) comprises, at a wireless communications device, receiving downlink data during a plurality of downlink subframes and transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) on an uplink. The HARQ-ACK relates to downlink data received during at least two of the plurality of downlink subframes and the HARQ-ACK is transmitted during one uplink subframe.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 10, 2020
    Assignee: TCL COMMUNICATION LIMITED
    Inventors: Ron Toledano, Olivier Marco, Benny Assouline, Efstathios Katranaras
  • Patent number: 10568038
    Abstract: A method for adjusting transmit power of a serving base station in a wireless communication system is provided. The method includes receiving measurement information indicating channel states of the serving base station and at least one neighbor base station from at least one serving user equipment (UE), receiving first information including information about transmit power of the at least one neighbor base station from the at least one neighbor base station, and determining the transmit power of the serving base station using the measurement information and the first information.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongkyung Kim, Byoungha Yi, Dongheon Lee
  • Patent number: 10535915
    Abstract: An antenna module and a transceiver that includes the antenna module which allow high-speed full-duplex communication. The antenna module has at least one antenna for transmitting and receiving electromagnetic radiation, at least one transmitter connection element and at least one receiver connection element for electrically connecting the antenna module to a transmitter circuit and a receiver circuit. The at least one transmitter connection element is in a transmitter section, the at least one receiver connection element is in a receiver section, and the at least one antenna is in an antenna section. The antenna section is between the at least one receiver section and the at least one transmitter section.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: January 14, 2020
    Assignee: TE Connectivity Nederland BV
    Inventors: Mohadig Widha Rousstia, Saoer Maniur Sinaga, Martinus E. J. J. Panis, Rainer Oliver Hornung
  • Patent number: 10517112
    Abstract: A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining (1620) that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening (1630) transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Sahlin, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Patent number: 10499384
    Abstract: Future LTE systems will support massive carrier aggregation that necessitates transmission of a large number of acknowledgement signals (HARQ-ACKs) in response to downlink data transmitted over multiple component carriers. Described herein are methods and apparatus for efficiently transmitting HARQ-ACK and periodic channel state information (P-CSI) bits over the PUCCH (physical uplink control channel).
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: December 3, 2019
    Assignee: Intel IP Corporation
    Inventors: Hong He, Seunghee Han, Alexei Vladimirovich Davydov, Gang Xiong
  • Patent number: 10491250
    Abstract: A high-frequency front end circuit includes a fixed frequency filter and an interference-wave suppression variable filter. The fixed frequency filter attenuates a high-frequency signal outside a specific frequency band. The interference-wave suppression variable filter attenuates a high-frequency signal in at least one used communication channel, among used communication channels that are used by a system and that causes an interference wave occurring in a neighbor frequency domain including a wireless communication channel.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 26, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Atsushi Horita
  • Patent number: 10484991
    Abstract: The present invention is designed so that synchronization can be adequately established even when a band to use is limited to a narrow band than the minimum system bandwidth (1.4 MHz) that is supported in existing LTE.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 19, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuaki Takeda, Hiroki Harada, Satoshi Nagata
  • Patent number: 10476578
    Abstract: A radio frequency extender device has a radio frequency transmitter, a receiver positioned at a location remote from said radio frequency transmitter, and a cable conductor extending between said radio frequency transmitter and said receiver. The cable conductor has one end spaced away from said radio frequency transmitter and an opposite end spaced away from the receiver. The cable conductor adapted to transmit the transmission from the radio frequency transmitter to the receiver. The receiver produces a humanly perceivable signal from the transmission from the radio frequency transmitter. The radio frequency transmitter can be an instrument or a vibration sensor with a Bluetooth™ device connected thereto.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 12, 2019
    Inventor: Thomas St. Lawrence
  • Patent number: 10419091
    Abstract: This invention presents methods for estimating MU-MIMO channel information using SU-MIMO channel information to choose a modulation and channel coding appropriate for the quality of the MU-MIMO channels, for adaptively selecting MU-MIMO precoding methods based on estimations of a plural of UEs and for compensating hardware impairments in MU-MIMO precoding.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: September 17, 2019
    Assignee: RF DSP INC.
    Inventors: Dengkui Zhu, Ping Liang
  • Patent number: 10405356
    Abstract: Distribution of management services in distributed antenna systems having a central unit and remote units configured to time-division multiplex (TDM) downlink and/or uplink management signals into time slots to form a TDM management frame signal. In this manner, collision will not occur between multiple management signals communicated over a common communications medium at the same time in the distributed antenna system. Collision detection and management mechanism can add design complexity, cost by requiring additional components, and require additional area on electronic boards. The TDM management frame signal may also be modulated at a carrier frequency before being combined with RF communications signals so that the combined signals are within a linear range of shared certain communications components to reduce cost and area.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 3, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Ami Hazani, Ofer Nisan
  • Patent number: 10368258
    Abstract: One embodiment of the disclosure sets for an example method to create a network of devices. The method includes requesting location information from a first mobile device within the wireless range covered by a stationary device, receiving the location information of the first mobile device, determining whether the distance between the first mobile device and a second mobile device is less than a value, and sending an instruction to the first mobile device to become a part of a communication network such that the first mobile device can send data directly to the second mobile device without involving the stationary device.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: July 30, 2019
    Assignee: Empire Technology Development LLC
    Inventor: Mung Chiang
  • Patent number: 10362605
    Abstract: According to certain embodiments, a method implemented in a wireless device is provided that includes determining that a scheduling request (SR) cannot be transmitted on an uplink during a scheduled SR opportunity. The SR is transmitted in a first transmission opportunity following a partial downlink (DL) subframe from a network node (115).
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jung-Fu Cheng, Oskar Drugge, Havish Koorapaty, Amitav Mukherjee, Henning Wiemann
  • Patent number: 10349298
    Abstract: The present invention relates to a method and device for ordering the measuring of Inter-Device Interference (IDI) for a base station in a wireless communication system. In particular, the method is characterized by comprising the steps of: transmitting downlink allocation information on a certain wireless resource to a first terminal; ordering the measuring of IDI to the first terminal when the certain wireless resource is allocated for uplink communication by at least one second terminal; ordering the transmitting of a reference signal defined for measuring IDI for the at least one second terminal; and transmitting reference signal measurement information, allocated to the at least one second terminal, to the first terminal.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 9, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwangseok Noh, Jaehoon Chung, Genebeck Hahn, Eunjong Lee, Jinmin Kim, Kukheon Choi, Sangrim Lee
  • Patent number: 10342015
    Abstract: A network node identifies a fixed periodic pattern to be used for scheduling a half-duplex (HD) user equipment (UE), the fixed periodic pattern defining a sequence of at least one downlink (DL) subframe, then at least one guard period, and then at least one uplink (UL) subframe. The network node then performs DL assignments for the network node according to the fixed periodic pattern and transmits UL grants to the UE according to the fixed periodic pattern.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 2, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Alexander Langereis, Prabaharan Kanesalingam, Björn Nordström
  • Patent number: 10340973
    Abstract: Embodiments of the present invention provide a communication terminal apparatus and a method. The communication terminal apparatus includes: a switch unit, a radio frequency unit, and a controller. The controller controls the switch unit to perform switching according to a preset ratio of uplink signal time duration resources to downlink signal time duration resources. The embodiments of the present invention can solve a problem of inflexible uplink and downlink time duration resource configuration.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 2, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhigang Liu, Shanqing Zeng, Shutian Yuan
  • Patent number: 10341081
    Abstract: A user equipment (UE) comprises a radio having TX and RX paths that include a duplexer, thus facilitating a full-duplex mode. The radio may also have TX and RX paths that exclude the duplexer, and which thus facilitate a half-duplex mode. The UE may be configured to autonomously and opportunistically switch from the full-duplex mode (the paths that include the duplexer) to the half-duplex mode (the paths that exclude the duplexer) when the UE desires to avoid the path loss caused by the duplexer, e.g., to temporarily receive with greater sensitivity and/or transmit with more power, during poor channel conditions. At other times the UE may autonomously decide to remain in full-duplex mode to achieve reduced transmission time, e.g., during time-critical communications such as VoLTE. The UE may autonomously determine whether to use full or half-duplex mode, i.e., without requiring any coordination with network-side devices.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: July 2, 2019
    Assignee: Apple Inc.
    Inventors: Li Su, William J. Noellert
  • Patent number: 10340998
    Abstract: Embodiments of the present invention provide a channel state information obtaining method and a device, where the method includes: determining, by a base station according to radio resource usage, a special timeslot in a frequency range used for downlink data transmission; sending special-timeslot configuration information to user equipment, where the special-timeslot configuration information is used to configure the user equipment to send the uplink physical signal over a downlink frequency band in the special timeslot; and performing channel estimation according to the uplink physical signal after receiving the uplink physical signal sent by the user equipment, to obtain channel state information. Compared with a technical solution in the prior art in which user equipment obtains channel state information and then feeds back the channel state information to a base station, system overheads caused in obtaining, by the base station, the channel state information are reduced.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 2, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoyan Bi, Dageng Chen, Jian Li
  • Patent number: 10333572
    Abstract: There are provided an antenna, an antenna tuner configured to adjust frequency characteristics of the antenna, and a control circuit configured to change frequency characteristics of the antenna tuner in a boundary time set for a unit of time of communication. For example, after matching indicators based on VSWRs and received signal strength indicators based on RSSIs have been acquired in a plurality of times of communication space time, the antenna tuner is put into an optimum mode. This suppresses the decrease in communication throughput caused by the adjustment of the antenna tuner and suppresses the interruption of communication at the time of adjustment of the antenna tuner.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: June 25, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kengo Onaka, Hidenori Obiya, Katsuhito Kuroda
  • Patent number: 10334575
    Abstract: Technologies and implementations for wireless communication in a wireless network including transmitting downlink information on a first frequency channel to Frequency Division Duplexing (FDD) User Equipments (UEs), transmitting downlink information on a second frequency channel during downlink portions of Time Domain Duplex (TDD) frame periods of the second frequency channel to TDD UEs, wherein the second frequency channel is the same as the frequency channel on which the FDD UEs are configured to transmit, and controlling uplink transmissions from the FDD UEs to occur only during uplink portions of TDD frame periods of the second frequency channel.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 25, 2019
    Assignee: Empire Technology Development LLC
    Inventor: Elliott H. Drucker
  • Patent number: 10326990
    Abstract: A method and apparatus of adaptive image and video coding including an alternative transform other than the discrete cosine transform (DCT) and discrete sine transform (DST) type VII (DST-VII) are disclosed. For at least one block size belonging to the size group, a transform from multiple transforms comprising an alternative transform in addition to DCT and DST-VII is selected and applied to a current block. The alternative transform may correspond to DCT type IV (DCT-IV) or DST type IV (DST-IV).
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 18, 2019
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Jicheng An, Kai Zhang
  • Patent number: 10320530
    Abstract: A node (100) of a wireless communication network receives a synchronization signal from a radio device (10). Based on the received synchronization signal, the node determines a time alignment configuration for uplink radio transmissions from the radio device to the wireless communication network. Based on the received synchronization signal, the node further determines Hybrid Automatic Repeat Request feedback information for at least one downlink radio transmission from the wireless communication network to the radio device (10). The node (100) indicates the determined time alignment configuration to the radio device (10). Based on the determined Hybrid Automatic Repeat Request feedback information, the node controls retransmission of the at least one downlink radio transmission.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pål Frenger, Erik Eriksson, Jonas Fröberg Olsson, Martin Hessler
  • Patent number: 10305663
    Abstract: Provided is a method of transmitting ACK/NACK in a TDD-based wireless communication system. The method includes: receiving M downlink subframes associated with an uplink subframe n in each of two serving cells; determining four candidate resources based on the M downlink subframes received in each of the two serving cells; and transmitting an ACK/NACK response for the M downlink subframes by using one resource selected from the four candidate resources in the uplink subframe n, wherein the two serving cells includes a first serving cell and a second serving cell, and wherein among the four candidate resources, a first resource and a second resource are associated with a PDSCH or a SPS release PDCCH for releasing semi-persistent scheduling received in the first serving cell, and a third resource and a fourth resources are associated with a PDSCH received in the second serving cell.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 28, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Min Gyu Kim, Dong Youn Seo
  • Patent number: 10299274
    Abstract: A network element for use in a mobile communications system and a method of using a network element for communicating data to/from mobile communications devices in a mobile communications system. The network element can provide a wireless access interface for communicating data to/from the mobile communications devices, the wireless access interface including: on a downlink a host carrier, the host carrier providing plural resource elements across a first frequency range; transmit data for a first group of mobile communications devices, wherein the data is distributed within the plural resource elements across the first frequency range; a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and transmit data for a second group of mobile communications devices via the virtual carrier.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: May 21, 2019
    Assignee: SCA IPLA HOLDINGS INC.
    Inventors: Darren McNamara, Andrew Lillie, Peter Darwood, Martin Beale
  • Patent number: 10285171
    Abstract: The present disclosure, for example, generally relates to wireless communication systems, and more particularly to techniques for flexible duplexing in such systems. For example, a technique for flexible duplexing provides a reference configuration that determines characteristics for paired frequency division duplexing (FDD) bands when the uplink band is temporarily reconfigured for time division duplexing (TDD) use. A user equipment (UE) may use the reference configuration to determine hybrid automatic repeat request (HARQ) timing, schedule uplink transmissions, manage a soft buffer, and determine signaling formats. In an aspect, the UE may receive a reconfiguration message indicating a change for an FDD uplink band to a temporary TDD band. The UE may then determine a reference configuration for a pair of FDD bands including an FDD downlink band and the temporary TDD band, the reference configuration indicating a pattern of sub-frames associated with the pair of FDD bands.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 7, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Chao Wei, Wanshi Chen, Peter Gaal, Jilei Hou
  • Patent number: 10243719
    Abstract: A MIMO wireless communication device includes, in part, a first transmit path adapted to transmit a first transmit signal from a first antenna, a second transmit path adapted to transmit a second transmit signal from a second antenna, a first receive path adapted to receive a first receive signal, an interference cancellation circuit and a controller. The cancellation circuit includes a cascaded filter structure each filter including a multitude of filter taps each including a variable element. The controller dynamically varies a value applied to each of the plurality of variable elements in accordance with frequency response characteristics of the variable element to remove a portion of a self-interference and/or cross-talk interference signal present in a signal received by the device.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: March 26, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dinesh Bharadia, Sachin Katti
  • Patent number: 10243720
    Abstract: Methods, apparatus and systems for enabling interference avoidance, for example from self and neighboring interference are disclosed. In one representative method implemented in a Wireless Transmit/Receive Unit (WTRU) using time-frequency (TF) resources in first and second directions, the method includes comprising TF resource muting or symbol muting, by the WTRU, one or more TF resources for communication in the first direction based on information associated with a communication in the second direction or subframe shortening, by the WTRU, by one or more TF resources for communication in the first direction based on information associated with a communication in the second direction.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 26, 2019
    Assignee: IDAC Holdings, Inc.
    Inventors: Moon-Il Lee, Janet A. Stern-Berkowitz, J. Patrick Tooher, Nobuyuki Tamaki
  • Patent number: 10187186
    Abstract: Systems and methods for uplink transmission scheduling are disclosed. A wireless device may monitor at least two downlink sub-frames for scheduling grants. The wireless device may receive a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame and receive a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame. The wireless device may perform an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant. For the uplink transmission, the wireless device may select a most recent uplink scheduling grant or select an uplink scheduling grant received in a downlink sub-frame at least a minimum number of sub-frames before the first uplink sub-frame.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 22, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Wanshi Chen, Peter Gaal, Tao Luo, Aleksandar Damnjanovic, Yongbin Wei, Durga Prasad Malladi, Hao Xu, Srinivas Yerramalli
  • Patent number: 10171226
    Abstract: A method of wireless communication using half duplex frequency division duplex (HD-FDD) comprises, at a wireless communications device, receiving downlink data during a plurality of downlink subframes and transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) on an uplink. The HARQ-ACK relates to downlink data received during at least two of the plurality of downlink subframes and the HARQ-ACK is transmitted during one uplink subframe.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: January 1, 2019
    Assignee: TCL COMMUNICATION LIMITED
    Inventors: Ron Toledano, Olivier Marco, Benny Assouline, Efstathios Katranaras
  • Patent number: 10165595
    Abstract: A network of handling uplink (UL) transmission comprises instructions of configuring a maximum retransmission attempt to a communication device; configuring a UL transmission skipping mechanism to the communication device; transmitting a UL grant comprising a first modulation and coding scheme (MCS) and an allocation of a first resource to the communication device for performing the UL transmission; receiving the UL transmission generated according to the first MCS in the first resource according to the UL transmission skipping mechanism; decoding the UL transmission for a plurality of times according to an error control coding (ECC) scheme, wherein the UL transmission is a first redundant version (RV) corresponding to a new transmission with a first RV index or a second RV corresponding to a retransmission with a second RV index; and transmitting an acknowledgment indicating whether the UL transmission is decoded successfully to the communication device.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 25, 2018
    Assignee: HTC Corporation
    Inventor: Ling-San Meng
  • Patent number: 10129812
    Abstract: A method for providing user agent data. The method includes an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the user agent.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 13, 2018
    Assignee: BlackBerry Limited
    Inventors: Zhijun Cai, Chandra Sekhar Bontu, Yi Yu, Mo-Han Fong, Sophie Vrzic, James Earl Womack, Andrew Mark Earnshaw, Yi Song