Patents by Inventor YUFENG ZHAO

YUFENG ZHAO 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: 20240056251
    Abstract: A method performed by a network node for allocating reference signals to a set of sector carriers provided by the network node for a communication with a UE in a radio network is provided. The network node allocates reference signals to each respective sector carrier, by for each respective sector carrier, allocating a reference signal to the sector carrier, and a parameter representing the sector carrier. The network node transmits the reference signal in each respective sector carrier and evaluates a neighboring relationship between the sector carriers, to identify if two neighboring sector carriers within the one or more cells are allocated the same reference signal. When identified that two neighboring sector carriers are allocated the same reference signal within one or more cells comprising the sector carriers, the network node re-allocates at least one of the two neighboring sector carriers with another available reference signal.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 15, 2024
    Inventors: Mikael Wittberg, Ying Sun, Yufeng Zhao
  • Publication number: 20230275504
    Abstract: The invention relates to a fault transient features optimization method and system of AC/DC system based on dissipated energy, which belongs to the HVDC transmission technology and is used to solve the problem that the DC pulsed current is too high and the generator power angle swing of the AC system on the rectifier side is too large during the process of the HVDC transmission system restart on fault.
    Type: Application
    Filed: August 23, 2022
    Publication date: August 31, 2023
    Applicant: NORTH CHINA ELECTRIC POWER UNIVERSITY
    Inventors: Jing MA, Yufeng ZHAO, Jialun LI, Zhencun NIE, Tong JIANG, Zengping WANG, Qixun YANG
  • Publication number: 20230209389
    Abstract: A method performed by a control node for handling data traffic between a Transmission and Reception Point, TRP, and a User Equipment, UE, in a wireless communications network is provided. The TRP is related to a network node and is serving the data traffic in a first sector carrier. The data traffic in the first sector carrier is processed by a first Baseband Unit, BBU. The control node decides (201) to re-allocate the processing of the data traffic in the first BBU to a second BBU. The second BBU processes data traffic in a second sector carrier provided by the TRP. The control node sends (203) a second order to the network node, to stop processing the UE 120 data traffic in the first BBU. The control node further sends (205) a third order to the network node, to activate the second sector carrier, start processing the data traffic in the second BBU, and deactivate the first sector carrier.
    Type: Application
    Filed: May 29, 2020
    Publication date: June 29, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Yufeng ZHAO
  • Patent number: 11364950
    Abstract: The present application discloses a steering control system, a method and a crane. The steering control system includes: one or more first angle sensors, one or more second angle sensors, and a steering controller; each of the first angle sensors collects an actual steering angle of a wheel corresponding to a mechanical steering axle as a first steering angle; each of the second angle sensors an actual steering angle of a wheel corresponding to an electrically controlled steering axle as a second steering angle; the steering controller obtains a theoretical steering angle of the wheel corresponding to the electrically controlled steering axle in a corresponding travel mode according to the first steering angle, and compares the second steering angle with the theoretical steering angle, to control the wheel corresponding to the electrically controlled steering axle to steer according to a difference therebetween.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: June 21, 2022
    Assignee: XUZHOU HEAVY MACHINERY CO., LTD.
    Inventors: Zenghai Shan, Jiankai Chen, Yunwang Ma, Zongjia Yu, Yufeng Zhao, Liufu Zhao, Pengcheng Lu
  • Patent number: 11303129
    Abstract: The disclosure discloses a commutation failure prediction method, device and storage medium based on energy accumulation features of inverter. The method includes the following steps: collecting instantaneous values of three-phase valve side current and calculating the derivatives of the three-phase valve side current according to the instantaneous values of three-phase valve side current; the derivative includes positive, negative and zero states; according to the derivatives of the three-phase valve side current, determining the locations of incoming valve and ongoing valve; based on the valve side current of the incoming valve and ongoing valve, calculating energy accumulation features of the 12-pulse inverter; predicting whether the commutation failure from the incoming valve to the ongoing valve will happen according to the states of the derivatives of the three-phase valve side current and the energy accumulation features of the 12-pulse inverter.
    Type: Grant
    Filed: July 10, 2021
    Date of Patent: April 12, 2022
    Assignee: NORTH CHINA ELECTRIC POWER UNIVERSITY
    Inventors: Jing Ma, Yufeng Zhao, Yuchong Wu, Ruifeng Wang
  • Patent number: 11236612
    Abstract: An advanced monitoring device and an implementation method for a whole-process deformation curve of a surrounding rock during tunnel excavation is disclosed, comprising a steel pipe elastic body, a cathetometer structure and an embedded optical fiber, and an implementation step; the cathetometer is an equidistant series structure, and fixed in the steel pipe; the embedded optical fiber is encapsulated in the surface slot of the steel pipe; the cathetometer and the embedded optical fiber and the steel pipe form a deformation coordination structure, and the deformation of the surrounding rock can be deduced by calculating the variation of the cathetometer and the deformation of the optical fiber. The invention can test and calculate the deformation curve of the surrounding rock in front of the excavation face during tunnel excavation, and provide support for engineering dynamic design, construction and safety.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 1, 2022
    Inventors: Xiaogang Wang, Lipeng Liu, Yujie Wang, Yongyu Ling, Yufeng Zhao, Xingsong Sun, Qingwei Duan, Ruizhi Fu, Ruilang Cao, Ping Sun, Jin Pi, Long Jiang, Xingchao Lin
  • Publication number: 20220021214
    Abstract: The disclosure discloses a commutation failure prediction method, device and storage medium based on energy accumulation features of inverter. The method includes the following steps: collecting instantaneous values of three-phase valve side current and calculating the derivatives of the three-phase valve side current according to the instantaneous values of three-phase valve side current; the derivative includes positive, negative and zero states; according to the derivatives of the three-phase valve side current, determining the locations of incoming valve and ongoing valve; based on the valve side current of the incoming valve and ongoing valve, calculating energy accumulation features of the 12-pulse inverter; predicting whether the commutation failure from the incoming valve to the ongoing valve will happen according to the states of the derivatives of the three-phase valve side current and the energy accumulation features of the 12-pulse inverter.
    Type: Application
    Filed: July 10, 2021
    Publication date: January 20, 2022
    Applicant: NORTH CHINA ELECTRIC POWER UNIVERSITY
    Inventors: Jing MA, Yufeng ZHAO, Yuchong WU, Ruifeng WANG
  • Patent number: 10548090
    Abstract: It is disclosed a base station of a cell having at least a first and a second antenna sector, where the base station is distributed in terms of location and a method performed in said base station for determining an uplink power control target for a UE that is connected to the first antenna sector. The method comprises estimating (42, 504), in the at least the first and the second antenna sectors, a thermal noise floor; and determining (44, 516) the uplink power control target based on a maximum of the estimated thermal noise floors in all of the at least the first and the second antenna sectors. The method improves uplink performance of cells with antenna sectors having different receiver sensitivity, and provides enhanced observability of UEs for cells extending over multiple base stations.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 28, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Yufeng Zhao, Ying Sun, Torbjörn Wigren
  • Publication number: 20200018164
    Abstract: An advanced monitoring device and an implementation method for a whole-process deformation curve of a surrounding rock during tunnel excavation is disclosed, comprising a steel pipe elastic body, a cathetometer structure and an embedded optical fiber, and an implementation step; the cathetometer is an equidistant series structure, and fixed in the steel pipe; the embedded optical fiber is encapsulated in the surface slot of the steel pipe; the cathetometer and the embedded optical fiber and the steel pipe form a deformation coordination structure, and the deformation of the surrounding rock can be deduced by calculating the variation of the cathetometer and the deformation of the optical fiber. The invention can test and calculate the deformation curve of the surrounding rock in front of the excavation face during tunnel excavation, and provide support for engineering dynamic design, construction and safety.
    Type: Application
    Filed: April 30, 2019
    Publication date: January 16, 2020
    Inventors: XIAOGANG WANG, LIPENG LIU, YUJIE WANG, YONGYU LING, YUFENG ZHAO, XINGSONG SUN, QINGWEI DUAN, RUIZHI FU, RUILANG CAO, PING SUN, JIN PI, LONG JIANG, XINGCHAO LIN
  • Patent number: 10490872
    Abstract: An aspect of the present invention is an electrical device, where the device includes a current collector and a porous active layer electrically connected to the current collector to form an electrode. The porous active layer includes MgBx particles, where x?1, mixed with a conductive additive and a binder additive to form empty interstitial spaces between the MgBx particles, the conductive additive, and the binder additive. The MgBx particles include a plurality of boron sheets of boron atoms covalently bound together, with a plurality of magnesium atoms reversibly intercalated between the boron sheets and ionically bound to the boron atoms.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 26, 2019
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Yufeng Zhao, Chunmei Ban, Daniel Ruddy, Philip A. Parilla, Seoung-Bum Son
  • Publication number: 20190329819
    Abstract: The present application discloses a steering control system, a method and a crane. The steering control system includes: one or more first angle sensors, one or more second angle sensors, and a steering controller; each of the first angle sensors collects an actual steering angle of a wheel corresponding to a mechanical steering axle as a first steering angle; each of the second angle sensors an actual steering angle of a wheel corresponding to an electrically controlled steering axle as a second steering angle; the steering controller obtains a theoretical steering angle of the wheel corresponding to the electrically controlled steering axle in a corresponding travel mode according to the first steering angle, and compares the second steering angle with the theoretical steering angle, to control the wheel corresponding to the electrically controlled steering axle to steer according to a difference therebetween.
    Type: Application
    Filed: December 27, 2016
    Publication date: October 31, 2019
    Inventors: Zenghai SHAN, Jiankai CHEN, Yunwang MA, Zongjia YU, Yufeng ZHAO, Liufu ZHAO, Pengcheng LU
  • Patent number: 10285984
    Abstract: A method and a composition for improving gut micro biota structure, selectively increase a first gut microbiota population while simultaneously decrease a second gut micro biota population in a subject. The first gut micro biota population includes a short-chain fatty acid (SCFA)-producing bacterium and the second gut microbiota population includes an endotoxin-producing bacterium.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 14, 2019
    Assignee: Shanghai Jiao Tong University
    Inventors: Liping Zhao, Xu Zhang, Menghui Zhang, Yufeng Zhao, Xiaoyan Pang, Xiaojun Zhang, Linghua Wang, Guang Ning, Xiaoying Li, Yifei Zhang
  • Patent number: 10271287
    Abstract: There is provided a method, performed by a network node, for enabling uplink power control in a wireless network. The method comprises assigning (S1) a transmit power for downlink transmission of a reference signal, wherein the reference signal is to be used for power control of at least one uplink transmission. The method further comprises determining (S2) a reference signal transmit power parameter providing a fictitious value for the transmit power of the reference signal that is different from the assigned transmit power. The method also comprises transmitting (S3) the reference signal transmit power parameter to at least one wireless device to enable the wireless device(s) to perform transmit power determination for the uplink transmission(s) at least partly based on the fictitious value for the transmit power of the reference signal.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ying Sun, Wei Zhao, Yufeng Zhao
  • Publication number: 20190098636
    Abstract: It is presented a method for determining a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio heads via a combiner. The method comprises the steps of: adjusting a weighting of an uplink signal for at least one of the remote radio heads; measuring a signal quality of a combined uplink signal received via the combiner; repeating the steps of adjusting and measuring until an exit condition is true; and determining a position of the wireless device based on how the measured signal quality differs for adjustments of weighting of the uplink signal for different remote radio heads.
    Type: Application
    Filed: June 29, 2015
    Publication date: March 28, 2019
    Inventors: Yufeng ZHAO, Anders WEDIN
  • Publication number: 20180359708
    Abstract: It is disclosed a base station of a cell having at least a first and a second antenna sector, where the base station is distributed in terms of location and a method performed in said base station for determining an uplink power control target for a UE that is connected to the first antenna sector. The method comprises estimating (42, 504), in the at least the first and the second antenna sectors, a thermal noise floor; and determining (44, 516) the uplink power control target based on a maximum of the estimated thermal noise floors in all of the at least the first and the second antenna sectors. The method improves uplink performance of cells with antenna sectors having different receiver sensitivity, and provides enhanced observability of UEs for cells extending over multiple base stations.
    Type: Application
    Filed: November 10, 2015
    Publication date: December 13, 2018
    Inventors: Yufeng Zhao, Ying Sun, Torbjörn Wigren
  • Patent number: 10110038
    Abstract: The disclosure discloses a mobile terminal and a rapid charging method, where the mobile terminal includes a microprocessor configured to detect voltage of a battery core thereof upon detecting that the USB interface is connected with the DC-charging power source adaptor, if the voltage of the battery core is in a range [S1, S2] delimited by preset DC-charging thresholds, to calculate a target charging voltage value Vout from the voltage of the battery core, the maximum terminal voltage supported by the battery as well as at least one of a resistance value on a charging line, a resistance value on a circuit board of the mobile terminal, an inner resistance of the battery, and to send the target charging voltage value Vout to the DC-charging power source adaptor to control the DC-charging power source adaptor to output charging voltage to DC-charge the battery.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 23, 2018
    Assignees: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY CO., LTD., HISENSE USA CORPORATION, HISENSE INTERNATIONAL CO., LTD.
    Inventors: Chunqian Li, Yaling Huang, Yufeng Zhao, Naifeng Zhang, Wenjuan Du
  • Patent number: 10097022
    Abstract: The application discloses a rapid charging method and a mobile terminal, which are proposed for a power source adaptor outputting dynamically adjustable voltage, where voltage of a battery core is divided into several intervals, and further in a segmented constant-current-like charging mode, a volt value of charging voltage output by the power source adaptor is adjusted dynamically according to an interval in which the core voltage of the battery in the mobile terminal while the battery is being charged lies, and the battery is DC-charged directly using the charging voltage output by the power source adaptor.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 9, 2018
    Assignees: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY CO., LTD., HISENSE USA CORPORATION, HISENSE INTERNATIONAL CO., LTD.
    Inventors: Chunqian Li, Yufeng Zhao, Wenjuan Du, Maoxue Yu
  • Patent number: 10050755
    Abstract: The disclosure relates to a method performed in a network node for allocating uplink reference signal resources. The network node is capable of uplink frequency selective scheduling and combined cell configuration. The network node is further arranged to provide wireless communication to a communication device. The method comprises configuring, when both uplink frequency selective scheduling and the combined cell configuration are enabled, a communication device for which uplink frequency selective scheduling is enabled with resources from a second set of resources and configuring other communication devices with resources from a first set of resources, and allocating uplink reference signal resources from the first set of resources or the second set of resources to the communication devices according to the configuration.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 14, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ying Sun, Wei Zhao, Yufeng Zhao
  • Publication number: 20180070316
    Abstract: There is provided a method, performed by a network node, for enabling uplink power control in a wireless network. The method comprises assigning (S1) a transmit power for downlink transmission of a reference signal, wherein the reference signal is to be used for power control of at least one uplink transmission. The method further comprises determining (S2) a reference signal transmit power parameter providing a fictitious value for the transmit power of the reference signal that is different from the assigned transmit power. The method also comprises transmitting (S3) the reference signal transmit power parameter to at least one wireless device to enable the wireless device(s) to perform transmit power determination for the uplink transmission(s) at least partly based on the fictitious value for the transmit power of the reference signal.
    Type: Application
    Filed: April 13, 2015
    Publication date: March 8, 2018
    Inventors: Ying Sun, Wei Zhao, Yufeng Zhao
  • Publication number: 20180069284
    Abstract: An aspect of the present invention is an electrical device, where the device includes a current collector and a porous active layer electrically connected to the current collector to form an electrode. The porous active layer includes MgBx particles, where x?1, mixed with a conductive additive and a binder additive to form empty interstitial spaces between the MgBx particles, the conductive additive, and the binder additive. The MgBx particles include a plurality of boron sheets of boron atoms covalently bound together, with a plurality of magnesium atoms reversibly intercalated between the boron sheets and ionically bound to the boron atoms.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventors: Yufeng ZHAO, Chunmei BAN, Daniel RUDDY, Philip A. PARILLA, Seoung-Bum SON