Patents by Inventor Cheng Bi
Cheng Bi 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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Patent number: 12007422Abstract: Online estimation of area-level inertia can be used for frequency stability control in low-inertia power systems. This disclosure provides an area-level inertia online estimation method considering inter-area equivalent frequency dynamics. The disclosed method only needs one phasor measurement unit placed at any bus within each area. The inter-area equivalent frequency dynamics model for the multi-area power system is developed, which is employed to estimate area-level inertia under the small disturbance situation. Then, the area-level inertia estimation model boils down to a nonlinear parameter identification problem. The other boundary conditions of the disclosed method are derived by parameter identifiability.Type: GrantFiled: January 11, 2024Date of Patent: June 11, 2024Assignee: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Tianshu Bi, Cheng Wang, Jiahao Liu, Guoyi Xu
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Patent number: 12009668Abstract: A method for primary frequency regulation (PFR)reserve procurement of a renewable energy power system is provided. The renewable energy power system includes synchronous power sources and renewable energy sources, and the renewable energy sources participate in frequency regulation using virtual synchronous machine (VSM) control.Type: GrantFiled: December 11, 2023Date of Patent: June 11, 2024Assignee: North China Electric Power UniversityInventors: Cheng Wang, Tianshu Bi, Guoyi Xu, Muqing Yang, Chenyu Ge
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Patent number: 12009659Abstract: A method for analytically studying fault responses of an inverter-interfaced renewable energy source (IIRES). The IIRES includes a decoupled sequence control (DSC) system, and the DSC system includes a converter, a current controller, a low-voltage ride-through (LVRT) control unit, and positive and negative sequence components calculation (PNSCC) structures. The method includes: determining a detailed fault model of the IIRES; determining a unified model of the PNSCC structures; determining a simplified fault model of the IIRES in a fault detection phase; determining a simplified fault model of the IIRES in a control transient response (CTR) phase; detecting a short-circuit fault; cutting off an outer loop of the DSC system; switching the DSC system to a current control mode through the LVRT unit by the current controller; analyzing the short-circuit fault; and designing an enhanced fault-ride-through control of the IIRESs to suppress an inrush current to protect the IIRES.Type: GrantFiled: May 30, 2023Date of Patent: June 11, 2024Assignee: North China Electric Power UniversityInventors: Tianshu Bi, Ke Jia, Qian Liu, Hao Liu, Cheng Wang
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Patent number: 11988761Abstract: The present disclosure provides an information transmission method and device, a node, a server and a computer-readable storage medium. The method includes: determining, by a transmitting node, a reference signal for positioning and transmitting configuration information of the reference signal for positioning to a positioning server, with the reference signal for positioning at least including a Positioning Reference Signal (PRS); and transmitting, by the transmitting node, the reference signal according to the configuration information.Type: GrantFiled: April 9, 2020Date of Patent: May 21, 2024Assignee: ZTE CORPORATIONInventors: Cheng Bi, Shijun Chen, Chuangxin Jiang
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Patent number: 11974259Abstract: Provide are a positioning reference signal generation method and apparatus, a communication system and a storage medium. The method includes: generating a positioning frequency domain sequence according to time-frequency resource information and system configuration information, where the time-frequency resource information includes the number Nprsslot of allocated system symbols consecutive in time, and the system configuration information includes positioning subcarrier spacing ?fprs; and generating, based on the positioning frequency domain sequence, positioning time domain data consecutive in a time period of the Nprsslot consecutive system symbols.Type: GrantFiled: September 14, 2018Date of Patent: April 30, 2024Assignee: ZTE CorporationInventors: Shijun Chen, Cheng Bi, Dawei Chen, Yuanyuan Wang
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Patent number: 11962150Abstract: A method for protecting a power system having inverter-interfaced renewable energy sources is provided. The power system includes an inverter and a control system. The control system includes a current controller including a saturation limiter and a proportional and integral (PI) controller, a phase-locked system, and a low-voltage ride-through (LVRT)control unit. The method includes: by using a Park transformation matrix, determining an output voltage of the inverter; determining a modulated voltage of the output voltage; upon detecting a grid fault, obtaining current references by the LVRT control unit; determining a fault current in a first stage of a transient phase of the grid fault; determining a fault current in a second stage of the transient phase; determining a fault current in a third stage of the transient phase; and switching the control system to a fault control mode by tracking the fault currents in the first, second and third stages, to the current references.Type: GrantFiled: May 30, 2023Date of Patent: April 16, 2024Assignee: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Tianshu Bi, Ke Jia, Qian Liu, Hao Liu, Cheng Wang
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DEVICE IDENTITY AUTHENTICATION METHOD AND APPARATUS, ELECTRONIC DEVICE, AND COMPUTER-READABLE MEDIUM
Publication number: 20240097895Abstract: This disclosure provides a device identity authentication method and apparatus, an electronic device, and a computer-readable medium. The device identity authentication method includes generating, by a terminal device, a first identity authentication message in response to an identity authentication instruction; sending the first identity authentication message to the second device for the second device to authenticate an identity of the terminal device based on the first identity authentication message to obtain a first identity authentication result; receiving, by the terminal device, a second identity authentication message; wherein the second identity authentication message is a message sent by the second device when the first identity authentication result is passed; authenticating an identity of the second device based on the second identity authentication message to obtain a second identity authentication result.Type: ApplicationFiled: October 28, 2021Publication date: March 21, 2024Inventors: Cheng LIU, Hongtao GUAN, Zhensheng BI -
Patent number: 11923688Abstract: An exemplary two-step method for power system inertia online estimation is described. The first step is to accurately estimate the POI-level aggregated inertia. The second step is to calculate the system-level inertia constant by weighting all the POI-level aggregated inertia and to monitor the inertia spatial distribution. In one example embodiment, the PMU is installed at POI, the frequency spatial difference is considered, and the mechanical power is carefully treated.Type: GrantFiled: July 5, 2023Date of Patent: March 5, 2024Assignee: NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Tianshu Bi, Cheng Wang, Jiahao Liu, Guoyi Xu
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Patent number: 11843482Abstract: Provided are a multipath separation method and device, and a storage medium.Type: GrantFiled: March 6, 2020Date of Patent: December 12, 2023Assignee: ZTE CORPORATIONInventors: Shijun Chen, Yuanyuan Wang, Dawei Chen, Cheng Bi
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Patent number: 11706588Abstract: A positioning method for a user equipment (UE) and an associated electronic device, the method including after a UE initiates a positioning request, receiving, by the UE, first supplementary information sent by a Location Management Function (LMF), where the first supplementary information comprises Synchronization Signal Block beam polling information of a designated cell reported to the LMF by a Next Generation Radio Access Network, measuring, by the UE, the designated cell to acquire first measurement information, and determining, by the UE, a position of the UE according to the first measurement information and the first supplementary information.Type: GrantFiled: September 11, 2019Date of Patent: July 18, 2023Assignee: ZTE CORPORATIONInventors: Cheng Bi, Shijun Chen, Dawei Chen, Yuanyuan Wang
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Publication number: 20230146130Abstract: Provided are a reference signal resource configuration method and apparatus, a device, and a storage medium. The method includes: configuring a plurality of frequency domain units as a frequency domain unit set, where the frequency domain units are frequency domain resources of a preset frequency segment; configuring a reference signal resource pool corresponding to the frequency domain units, where the reference signal resource pool includes a plurality of reference signal resources, and at least part of the reference signal resources have an association relationship established according to a preset rule or have an association relationship established according to an indication of an association relationship among the frequency domain units; and configuring a preset resource attribute for multiple reference signal resources having an association relationship. The accuracy of estimating a channel feature can be improved by using the reference signal resources for estimating the channel feature.Type: ApplicationFiled: April 9, 2021Publication date: May 11, 2023Applicant: ZTE CORPORATIONInventors: Guozeng ZHENG, Chuangxin JIANG, Huahua XIAO, Bo GAO, Cheng BI
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Publication number: 20230067678Abstract: A method and apparatus for processing location information and a non-transitory computer-readable storage medium are disclosed. The method may include: transmitting, by a location management function (LMF) server, location request information to a serving cell of a terminal device, the location request information at least comprising sounding reference signal (SRS) configuration recommendation information; receiving, by the LMF server, location response information transmitted by the serving cell, the location response information at least comprising SRS configuration determination information; and transmitting, by the LMF server, measurement request information to a transmission receive point (TRP), the measurement request information comprising the SRS configuration determination information.Type: ApplicationFiled: January 28, 2021Publication date: March 2, 2023Inventors: Cheng BI, Chuangxin JIANG, Zhaohua LU, Huahua XIAO, Guozeng ZHENG
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Publication number: 20220377697Abstract: A positioning method and apparatus, a terminal device and a storage medium are provided. The method includes: receiving positioning assistance information; performing positioning measurement according to the positioning assistance information; and positioning a target terminal by using a result of the positioning measurement. By means of the solution, the positioning of a terminal device in a Vehicle to Everything (V2X) scenario can be realized.Type: ApplicationFiled: June 16, 2020Publication date: November 24, 2022Inventors: Cheng BI, Mengzhen WANG, Chuangxin JIANG, Huahua XIAO
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Patent number: 11496985Abstract: A method for determining a time difference of arrival, and a communication device and system, where neighbor cells for positioning are determined for a target terminal by a positioning server, then cell identities of the neighbor cells and beam polling configuration information of the neighbor cells are transmitted to the target terminal, so that the target terminal may detect a Positioning Reference Signal (PRS) beam transmitted by a corresponding neighbor cell according to the beam polling configuration information, and a time difference of arrival of PRS beams transmitted by one neighbor cell and another neighbor cell is calculated.Type: GrantFiled: September 17, 2018Date of Patent: November 8, 2022Assignee: ZTE CORPORATIONInventors: Cheng Bi, Shijun Chen, Yuanyuan Wang
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Patent number: 11435432Abstract: A terminal positioning method includes: determining that there is no Line Of Sight (LOS) between a first communication node and a terminal, wherein there is a reflecting object between the first communication node and the terminal; determining first position information of the reflecting object according to a first beam of the first communication node, the first beam is a beam, detected by the terminal to have a strongest signal, among a plurality of beams of the first communication node; and determining a position of the terminal according to the first position information.Type: GrantFiled: August 21, 2019Date of Patent: September 6, 2022Assignee: ZTE CORPORATIONInventors: Cheng Bi, Shijun Chen, Wanfu Xu
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Publication number: 20220279310Abstract: Provided are a location information determination method and device, a first terminal, and a second terminal. The location information determination method includes transmitting positioning request information; receiving positioning assistance data transmitted by a second terminal; calculating a positioning assistance parameter according to the positioning assistance data; and transmitting the positioning assistance parameter or calculating location information of a first terminal according to the positioning assistance parameter.Type: ApplicationFiled: August 13, 2020Publication date: September 1, 2022Inventors: Huahua XIAO, Chuangxin JIANG, Zhaohua LU, Cheng BI, Youxiong LU, Boyuan ZHANG, Wei LUO
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Patent number: 11425680Abstract: Disclosed is a positioning system. The positioning system includes a positioning signal generation server and a positioning station. The positioning signal generation server is configured to generate a time domain positioning oversampled signal according to a positioning signal parameter and send the time domain positioning oversampled signal to the positioning station. The positioning station is configured to receive the time domain positioning oversampled signal generated by the positioning signal generation server and send the time domain positioning oversampled signal according to sending time information of a positioning signal. Further provided are a positioning signal generation and sending method and a storage medium.Type: GrantFiled: September 29, 2018Date of Patent: August 23, 2022Assignee: ZTE CORPORATIONInventors: Shijun Chen, Dawei Chen, Yuanyuan Wang, Cheng Bi
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Publication number: 20220229144Abstract: The present disclosure provides an information transmission method and device, a node, a server and a computer-readable storage medium. The method includes: determining, by a transmitting node, a reference signal for positioning and transmitting configuration information of the reference signal for positioning to a positioning server, with the reference signal for positioning at least including a Positioning Reference Signal (PRS); and transmitting, by the transmitting node, the reference signal according to the configuration information.Type: ApplicationFiled: April 9, 2020Publication date: July 21, 2022Inventors: Cheng BI, Shijun CHEN, Chuangxin JIANG
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Publication number: 20220210761Abstract: Provided are a method and an apparatus for implementing uplink positioning and a storage medium. The method includes: sending a first positioning instruction to a first measurement node set, where the first measurement node set includes at least three measurement nodes and a target node is located within a coverage range of the measurement nodes; receiving first positioning attribute information fed back by each measurement node and corresponding to the first positioning instruction, where the first positioning attribute information includes a measurement node identity and random access information of a cell where the measurement node is located; and sending a random access instruction carrying the first positioning attribute information to the target node, where the random access instruction is configured to trigger the target node to send a random access signal to the each measurement node to determine a communication distance between the target node and the each measurement node.Type: ApplicationFiled: April 26, 2020Publication date: June 30, 2022Applicant: ZTE CorporationInventors: Cheng Bi, Yifei Yuan, Shijun Chen, Wanfu Xu
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Publication number: 20220173940Abstract: Provided are a multipath separation method and device, and a storage medium.Type: ApplicationFiled: March 6, 2020Publication date: June 2, 2022Applicant: ZTE CORPORATIONInventors: Shijun Chen, Yuanyuan Wang, Dawei Chen, Cheng Bi