Patents by Inventor Xiangdong Zhang

Xiangdong Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180219665
    Abstract: A feedback information transmission method, a base station, and user equipment are provided. The feedback information transmission method includes: receiving, by a base station, uplink data separately sent by a plurality of user equipments (UEs); determining, by the base station, feedback information for uplink data sent by each of the plurality of UEs, where the feedback information indicates an acknowledgement (ACK) or a negative acknowledgement (NACK); and transmitting, by the base station by using one control channel, a plurality of pieces of feedback information respectively corresponding to the uplink data sent by the plurality of UEs.
    Type: Application
    Filed: March 23, 2018
    Publication date: August 2, 2018
    Inventors: Zheng Yu, Yi Wang, Xiangdong Zhang
  • Patent number: 10039081
    Abstract: The present invention relates to the field of wireless communications technologies, and in particular, to a terminal, a network device, a paging method, and an area information update method, so as to: in a terminal relay scenario, page a terminal to which another terminal provides a relay service, and update area information of the terminal to which the another terminal provides the relay service. A first terminal provided in embodiments of the present invention includes: a receiving module, configured to receive a paging message, where the paging message carries a terminal identity of a second terminal; and a processing module, configured to: when determining that the second terminal is a terminal to which the first terminal provides a relay service, page the second terminal according to the terminal identity of the second terminal.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 31, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xiangdong Zhang
  • Patent number: 10013313
    Abstract: Systems and methods of performing backup of databases and associated logs with one schedule such that a backup of both a database and its associated log can be restored or recovered to a desired point in time. A backup request associated with a backup type is received and defined by a service level agreement. The service level agreement includes a combined schedule for backing up both data stored in the database and log data associated with a database.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 3, 2018
    Assignee: Actifio, Inc.
    Inventors: Xiangdong Zhang, Uday Tekade, Sachindra Kumar, Madhav Mutalik
  • Publication number: 20180176947
    Abstract: An information transmission method includes: receiving a random access preamble sent by user equipment (UE); generating first information according to the received random access preamble, where the first information is information about a random access response to the random access preamble, and the first information includes at least one of the following information: timing advance indication information, indication information of a narrowband resource used for transmission of a control channel, indication information of a subframe used for transmission of the control channel, indication information of a demodulation reference signal scrambling sequence initialization parameter used for transmission of the control channel, indication information of a coverage enhancement level used for transmission of the control channel, or resource allocation information used for transmission of second information, where the second information is information about a response to the first information; and sending the first
    Type: Application
    Filed: February 13, 2018
    Publication date: June 21, 2018
    Inventors: Zheng YU, Xiangdong ZHANG
  • Publication number: 20180160410
    Abstract: Embodiments of the present invention provide a physical downlink control channel transmission method and apparatus. The transmission method includes: obtaining, by UE, a parameter set for transmitting a first physical downlink control channel, where the first physical downlink control channel is used for sending same downlink control information DCI in at least R subframes; determining, by the UE according to the parameter set, N candidate locations for transmitting the first physical downlink control channel by a base station, where the candidate location includes the R subframes; monitoring, by the UE at the N candidate locations, whether the base station sends the first physical downlink control channel; and receiving, by the UE at a first candidate location, the first physical downlink control channel sent by the base station, where the N candidate locations include the first candidate location.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 7, 2018
    Inventors: Jinhuan Xia, Brian Classon, Xiangdong Zhang
  • Patent number: 9985601
    Abstract: A step attenuator with constant input capacitance and having good performance is disclosed. In an exemplary design, an apparatus includes a step attenuator having a constant input capacitance for different amounts of attenuation. The step attenuator receives an input signal, provides a variable amount of attenuation for the input signal, and provides an output signal. The step attenuator may include a plurality of attenuator sections coupled in series. Each attenuator section may include a plurality of capacitors and may have the constant input capacitance. At least one of the plurality of attenuator sections may be selected or unselected to obtain a selected amount of attenuation for the step attenuator. An attenuator section may provide a predetermined amount of attenuation or a variable amount of attenuation when selected. The apparatus may further include a power detector that receives and determines the power of the output signal from the step attenuator.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 29, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Xinwei Wang, Xiangdong Zhang, Marc Gerald Dicicco
  • Publication number: 20180115939
    Abstract: Embodiments of the present application relate to the field of communications technologies, and disclose a method for transferring information between a base station and a terminal, a base station, a terminal, and a system, which diversify manners for transferring information between a base station and a terminal. The method includes: receiving a broadcast channel, where the broadcast channel is not only used for transferring basic physical layer configuration information of a cell, but also used for transferring first specific content agreed between the terminal and the base station, and the first specific content is used for transferring configuration information required by the terminal to access a network; and parsing out the first specific content from the broadcast channel. The present application is mainly applied to transfer of information between a base station and a terminal.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 26, 2018
    Inventor: Xiangdong Zhang
  • Publication number: 20180084557
    Abstract: Embodiments provide an information processing method, user equipment, and a base station, where the information processing method includes: obtaining, by user equipment, a coverage enhancement requirement; and communicating, by the user equipment, with a base station according to the coverage enhancement requirement. The user equipment obtains the coverage enhancement requirement and communicates with the base station according to the coverage enhancement requirement.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 22, 2018
    Inventors: Xiangdong Zhang, Zheng Yu, Brian Classon
  • Publication number: 20180070376
    Abstract: A method for transmitting a common message includes determining, by a base station, a first transmission configuration. The first transmission configuration includes a group of transmission parameters and a moment for using the group of transmission parameters. The group of transmission parameters includes a control channel scheduling indication that is used to indicate whether to use a control channel to schedule and send a common message. The method further includes transmitting, by the base station, the common message to a machine type communication (MTC) device according to the control channel scheduling indication.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Inventors: Xiangdong Zhang, Jinhuan Xia
  • Publication number: 20180063800
    Abstract: A method for determining a transmit power in a coverage enhancement scenario and a device resolve a problem that the prior art lacks a solution to determining a transmit power of a preamble sequence in a random access process in the coverage enhancement scenario. The method includes: obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the obtained configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal, so as to determine the transmit power used for transmitting the signal in the coverage enhancement scenario.
    Type: Application
    Filed: November 3, 2017
    Publication date: March 1, 2018
    Inventors: Xiangdong Zhang, Jinhuan Xia
  • Patent number: 9906318
    Abstract: An apparatus is disclosed that includes a frequency multiplexer circuit coupled to an input node and configured to receive an input signal via the input node. The frequency multiplexer circuit comprises a first filter circuit, a second filter circuit, and a third filter circuit. The apparatus also includes a switching circuit that is configurable to couple at least two of a first output of the first filter circuit, a second output of the second filter circuit, or a third output of the third filter circuit to a single output port.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Chengjie Zuo, Daeik Daniel Kim, David Francis Berdy, Changhan Hobie Yun, Je-Hsiung Jeffrey Lan, Robert Paul Mikulka, Mario Francisco Velez, Jonghae Kim, Matthew Michael Nowak, Ryan Scott C. Spring, Xiangdong Zhang
  • Publication number: 20180048270
    Abstract: A circuit including a radio frequency (RF) amplifier including a transistor configured to receive an RF signal at its control terminal, a capacitor coupled to a first terminal of the transistor, an inductor coupled to a second terminal of the transistor, wherein the capacitor and inductor form a loop from the first terminal to the second terminal, wherein the loop bypasses a parasitic inductance between the second terminal and ground.
    Type: Application
    Filed: November 11, 2016
    Publication date: February 15, 2018
    Inventors: Tianzuo Xi, Haichuan Kang, ZhenQi Chen, Zhenying Luo, Xiangdong Zhang, Xinwei Wang, Yanjie Sun, Yan Kit Gary Hau, Jing-Hwa Chen
  • Patent number: 9872229
    Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a method for transferring information between a base station and a terminal, a base station, a terminal, and a system, which diversify manners for transferring information between a base station and a terminal. The method includes: receiving a broadcast channel, where the broadcast channel is not only used for transferring basic physical layer configuration information of a cell, but also used for transferring first specific content agreed between the terminal and the base station, and the first specific content is used for transferring configuration information required by the terminal to access a network; and parsing out the first specific content from the broadcast channel. The present invention is mainly applied to transfer of information between a base station and a terminal.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 16, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xiangdong Zhang
  • Patent number: 9860902
    Abstract: Embodiments provide an information processing method, user equipment, and a base station, where the information processing method includes: obtaining, by user equipment, a coverage enhancement requirement; and communicating, by the user equipment, with a base station according to the coverage enhancement requirement. The user equipment obtains the coverage enhancement requirement and communicates with the base station according to the coverage enhancement requirement.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 2, 2018
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Xiangdong Zhang, Zheng Yu, Brian Classon
  • Patent number: 9844010
    Abstract: A method for determining a transmit power in a coverage enhancement scenario and a device resolve a problem that the prior art lacks a solution to determining a transmit power of a preamble sequence in a random access process in the coverage enhancement scenario. The method includes: obtaining, by a terminal, configuration information that is used to determine a transmit power used for transmitting a signal at each coverage enhancement level; and determining, by the terminal according to the obtained configuration information, a transmit power used for transmitting the signal at a coverage enhancement level currently used by the terminal, so as to determine the transmit power used for transmitting the signal in the coverage enhancement scenario.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: December 12, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiangdong Zhang, Jinhuan Xia
  • Patent number: 9813043
    Abstract: Tunable diplexers in three-dimensional (3D) integrated circuits (IC) (3DIC) are disclosed. In one embodiment, the tunable diplexer may be formed by providing one of either a varactor or a variable inductor in the diplexer. The variable nature of the varactor or the variable inductor allows a notch in the diplexer to be tuned so as to select a band stop to eliminate harmonics at a desired frequency as well as control the cutoff frequency of the pass band. By stacking the elements of the diplexer into three dimensions, space is conserved and a variety of varactors and inductors are able to be used.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Chengjie Zuo, Daeik D. Kim, Je-Hsiung Lan, Jonghae Kim, Mario Francisco Velez, Changhan Yun, David F. Berdy, Robert P. Mikulka, Matthew M. Nowak, Xiangdong Zhang, Puay H. See
  • Publication number: 20170260119
    Abstract: The present invention relates to the technical field of organic chemistry, specifically an asymmetrical hydrogenation of an ?-ketonic acid compound, the technical proposal being as shown by the following formula: Wherein R1 is a phenyl, a substituted phenyl, a naphthyl a substituted naphthyl, a C1-C6 alkyl or aralkyl, the substitute is a C1-C6 alkyl, a C1-C6 alkoxy, a halogen, the number of the substituents is 1-3.
    Type: Application
    Filed: April 28, 2015
    Publication date: September 14, 2017
    Inventors: Pucha YAN, Yuanqiang LI, Daqing CHE, Xiangdong ZHANG, Kang CHEN, Yongliang YAN
  • Publication number: 20170245250
    Abstract: Embodiments of the present disclosure disclose a physical downlink control channel sending method. The method includes: sending configuration information of a first physical downlink control channel on a predefined resource, where the configuration information of the first physical downlink control channel is used to indicate manners of sending and receiving the first physical downlink control channel; and sending the first physical downlink control channel according to the configuration information of the first physical downlink control channel. Correspondingly, the embodiments of the present disclosure further disclose a physical downlink control channel receiving method, a base station device, and user equipment. By using the present disclosure, a physical downlink control channel, especially, an EPDCCH channel, can be transmitted, to resolve a problem of physical downlink control channel transmission caused by the fact that narrowband user equipment cannot receive a broadband PDCCH channel.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 24, 2017
    Inventors: Xiangdong Zhang, Zheng Yu, Jinhuan Xia
  • Publication number: 20170244529
    Abstract: Embodiments of the present disclosure provide an information transmission method and an apparatus, where the information transmission method includes: determining, by a base station, a first transmission resource; sending, by the base station, first information using the first transmission resource, where the first information includes at least one of system information or control information for scheduling system information; determining, by the base station, at least one second transmission resource; and sending, by the base station, second information to UE by using the second transmission resource, where the second information includes at least one of: a paging message, a random access response message, a contention resolution message, control information for scheduling a paging message, control information for scheduling a random access response message, or control information for scheduling a contention resolution message.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 24, 2017
    Inventors: Zheng YU, Xiangdong ZHANG
  • Patent number: 9665437
    Abstract: Computerized methods and systems for automating a process of creating and mounting live copies of data to applications in accordance with workflows that specify procedures for creating and mounting the live copies of data to the applications. The methods and systems comprise executing at least one workflow associated with a data object based on a triggering event, and executing a set of configurable work actions associated with the at least one workflow; creating a snapshot of data volumes associated with the data object; creating liveclone volumes based on the snapshot of the data volumes, and mounting and dismounting the liveclone volumes to and from at least one application.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 30, 2017
    Assignee: Actifio, Inc.
    Inventors: Ankur Bhargava, Dongjun Sun, Sachindra Kumar, Xiangdong Zhang, Madhav Mutalik