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).
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Publication number: 20250142623Abstract: A method for controlling a maximum number of Random Access (RA) preambles for a network node to handle concurrently in a first cell in a wireless communications network. A runtime parameter associated with the network node restricts the network node to handle at most a first maximum number of RA preambles concurrently. The network node monitors load characteristics associated with the first cell. When the load characteristics fulfil a triggering condition, the network node selects a second maximum number of RA preambles to be handled concurrently. The second maximum number is selected such that a probability value fulfils a threshold. The probability value is associated with a probability that RA preambles that are to be concurrently transmitted in the first cell will exceed the second maximum number of RA preambles. The runtime is adjusted to restrict the network node to handle at most the second maximum number of RA preambles concurrently.Type: ApplicationFiled: August 18, 2021Publication date: May 1, 2025Inventors: Yang ZHANG, Yufeng ZHAO
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Publication number: 20250055532Abstract: A network node (150) comprising TRPs and a method for configuring CSI-RS reporting for a UE (100). The method comprises sending (102) at least a first and a second set of CSI-RSs. The first set is sent as a joint transmission from a group of TRPs and the second set is TRP-specific among said group. The method comprises receiving (103) a UE capability information; sending a configuration message to the UE for the UE to become configured to report on at least one CSI-RS from at least one of the first and second set based on the UE capability information; and sending an indication to the UE indicating which of the configured at least one CSI-RS the UE shall measure and report on. A UE, a method performed by a UE, corresponding computer programs and computer program products are disclosed.Type: ApplicationFiled: December 23, 2021Publication date: February 13, 2025Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Yufeng ZHAO, Mikael WITTBERG
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Publication number: 20250012754Abstract: The present invention relates to an electrochemical sensor for rapid and accurate detection of Na+ and K+ ions in the human body. The sensor utilizes a crown-ether functionalized graphene-based electrode, developed through innovative synthetic strategies. The process involves engineering graphene with highly selective crown ethers, resulting in a biocompatible, high-quality electrode. This sensor exhibits superior potentiometric detection capabilities for Na+ and K+ ions in extremely small samples. The invention offers a low-cost, highly sensitive, and selective method for monitoring ion concentrations, addressing the need for early identification of diseases caused by Na+/K+ imbalances. Benefits include rapid testing, versatility, and potential applications in personalized medicine and point-of-care diagnostics. This technology overcomes existing obstacles in early disease detection and provides a foundation for advanced biosensor development in healthcare.Type: ApplicationFiled: September 24, 2024Publication date: January 9, 2025Applicant: CENTRAL LABS-KING KHALID UNIVERSITYInventors: Anuj KUMAR, Mohd UBAIDULLAH, Mohd ABOHASAN, Mohd SHKIR, Mohammed S. ALQAHTANI, Hamed Majdooa ALGARNI, Yufeng ZHAO
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Patent number: 12095356Abstract: 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: GrantFiled: August 23, 2022Date of Patent: September 17, 2024Assignee: North China Electric Power UniversityInventors: Jing Ma, Yufeng Zhao, Jialun Li, Zhencun Nie, Tong Jiang, Zengping Wang, Qixun Yang
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Publication number: 20240276553Abstract: A method performed by a network node for controlling power in a Random Access (RA) procedure is provided. The RA procedure is from a UE to a first Transmission and reception Point (TRP) in a multi TRP cell in a wireless communications network. For each respective TRP out of a set of TRPs, network node calculates a smallest distance between this TRP and each respective other TRP comprised in the set of TRPs. The set of TRPs are comprised in the multi TRP cell. The network node obtains a minimum distance among the calculated smallest distances. Based on the minimum distance, the network node establishes a path loss difference towards each of the TRPs in the set of TRPs, as experienced by the UE. The network node calculates a target power based on the established path loss difference and a preamble detection sensitivity level. The target power is to be used.Type: ApplicationFiled: June 18, 2021Publication date: August 15, 2024Inventors: Yang Zhang, Yufeng Zhao, Magnus Finne, Weidong Kong, Lars O. Mårtensson
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Publication number: 20240244624Abstract: User equipments, network nodes, and systems are described to transmitting and receiving a physical uplink control channel, PUCCH. For example, a user equipment may receive configuration information from a network node. The configuration information may indicate a plurality of cells available for transmitting or for receiving the PUCCH, the plurality of cells including a reference cell and may indicate a plurality of cell index values respectively associated with a plurality of slots of the reference cell, each cell index value indicating a respective designated cell from among the plurality of cell. The user equipment may receive a timing indicator indicating a reference slot from among the plurality of slots of the reference cell and may transmit the PUCCH using the respective designated cell indicated by the cell index value associated with the reference slot.Type: ApplicationFiled: May 11, 2022Publication date: July 18, 2024Inventors: Kittipong Kittichokechai, Mattias Andersson, Sorour Falahati, Bikramjit Singh, Yufei Blankenship, Yufeng Zhao
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Publication number: 20240056251Abstract: 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: ApplicationFiled: December 22, 2020Publication date: February 15, 2024Inventors: Mikael Wittberg, Ying Sun, Yufeng Zhao
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Publication number: 20230275504Abstract: 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: ApplicationFiled: August 23, 2022Publication date: August 31, 2023Applicant: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Jing MA, Yufeng ZHAO, Jialun LI, Zhencun NIE, Tong JIANG, Zengping WANG, Qixun YANG
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Publication number: 20230209389Abstract: 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: ApplicationFiled: May 29, 2020Publication date: June 29, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventor: Yufeng ZHAO
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Patent number: 11364950Abstract: 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: GrantFiled: December 27, 2016Date of Patent: June 21, 2022Assignee: XUZHOU HEAVY MACHINERY CO., LTD.Inventors: Zenghai Shan, Jiankai Chen, Yunwang Ma, Zongjia Yu, Yufeng Zhao, Liufu Zhao, Pengcheng Lu
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Patent number: 11303129Abstract: 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: GrantFiled: July 10, 2021Date of Patent: April 12, 2022Assignee: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Jing Ma, Yufeng Zhao, Yuchong Wu, Ruifeng Wang
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Patent number: 11236612Abstract: 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: GrantFiled: April 30, 2019Date of Patent: February 1, 2022Inventors: 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
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Publication number: 20220021214Abstract: 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: ApplicationFiled: July 10, 2021Publication date: January 20, 2022Applicant: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Jing MA, Yufeng ZHAO, Yuchong WU, Ruifeng WANG
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Patent number: 10548090Abstract: 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: GrantFiled: November 10, 2015Date of Patent: January 28, 2020Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Yufeng Zhao, Ying Sun, Torbjörn Wigren
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Publication number: 20200018164Abstract: 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: ApplicationFiled: April 30, 2019Publication date: January 16, 2020Inventors: 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
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Patent number: 10490872Abstract: 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: GrantFiled: November 8, 2017Date of Patent: November 26, 2019Assignee: Alliance for Sustainable Energy, LLCInventors: Yufeng Zhao, Chunmei Ban, Daniel Ruddy, Philip A. Parilla, Seoung-Bum Son
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Publication number: 20190329819Abstract: 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: ApplicationFiled: December 27, 2016Publication date: October 31, 2019Inventors: Zenghai SHAN, Jiankai CHEN, Yunwang MA, Zongjia YU, Yufeng ZHAO, Liufu ZHAO, Pengcheng LU
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Patent number: 10285984Abstract: 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: GrantFiled: June 4, 2013Date of Patent: May 14, 2019Assignee: Shanghai Jiao Tong UniversityInventors: Liping Zhao, Xu Zhang, Menghui Zhang, Yufeng Zhao, Xiaoyan Pang, Xiaojun Zhang, Linghua Wang, Guang Ning, Xiaoying Li, Yifei Zhang
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Patent number: 10271287Abstract: 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: GrantFiled: April 13, 2015Date of Patent: April 23, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ying Sun, Wei Zhao, Yufeng Zhao
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Publication number: 20190098636Abstract: 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: ApplicationFiled: June 29, 2015Publication date: March 28, 2019Inventors: Yufeng ZHAO, Anders WEDIN