Patents by Inventor Gengsheng Zhang
Gengsheng 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).
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Publication number: 20240142640Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a vehicle to determine location relative to a roadside unit (RSU) or other nearby point of reference. Vehicles within a pre-designated range or within broadcast distance or otherwise geographically proximate to a roadside unit, through the use of broadcast or other messages sent by the vehicles and/or the RSU may share carrier GNSS phase measurement data, wherein the shared GNSS carrier phase measurement data may be utilized to control and coordinate vehicle movements, velocity and/or position by the RSU and/or to determine location of each vehicle relative to the RSU and/or to other vehicles or determine the absolute location of each vehicle. An RSU may coordinate vehicle access to an intersection, manage vehicle speeds and coordinate or control vehicle actions such as slowing, stopping, and changing lanes or sending a vehicle to a particular location.Type: ApplicationFiled: December 14, 2023Publication date: May 2, 2024Inventors: Bo ZHENG, Yinghua YANG, Ning LUO, Gengsheng ZHANG
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Publication number: 20240134059Abstract: In an aspect, a user equipment (UE) receives a spoofing alert message from either a server or an internet-of-things (IOT) device that indicates whether a spoofed Global Navigation Satellite System (GNSS) condition is present. Based on determining that the spoofing alert message indicates that a spoofed GNSS condition is present, the UE determines, based on the spoofing alert message, a location of a spoofer broadcasting a spoofed GNSS signal, determines, based on the location of the spoofer and a current location of the UE, that the UE is within a receiving area of the spoofed GNSS signal, and determines a position of the UE without using the spoofed GNSS signal.Type: ApplicationFiled: December 8, 2023Publication date: April 25, 2024Inventors: Han ZHANG, Ning LUO, Gengsheng ZHANG, Bo ZHENG, Yinghua YANG, Min WANG
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Publication number: 20240111061Abstract: In an aspect, a user equipment (UE) receives a spoofing alert message from either a server or an internet-of-things (IOT) device that indicates whether a spoofed Global Navigation Satellite System (GNSS) condition is present. Based on determining that the spoofing alert message indicates that a spoofed GNSS condition is present, the UE determines, based on the spoofing alert message, a location of a spoofer broadcasting a spoofed GNSS signal, determines, based on the location of the spoofer and a current location of the UE, that the UE is within a receiving area of the spoofed GNSS signal, and determines a position of the UE without using the spoofed GNSS signal.Type: ApplicationFiled: December 8, 2023Publication date: April 4, 2024Inventors: Han ZHANG, Ning LUO, Gengsheng ZHANG, Bo ZHENG, Yinghua YANG, Min WANG
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Patent number: 11914052Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a vehicle to determine location relative to a roadside unit (RSU) or other nearby point of reference. Vehicles within a pre-designated range or within broadcast distance or otherwise geographically proximate to a roadside unit, through the use of broadcast or other messages sent by the vehicles and/or the RSU may share carrier GNSS phase measurement data, wherein the shared GNSS carrier phase measurement data may be utilized to control and coordinate vehicle movements, velocity and/or position by the RSU and/or to determine location of each vehicle relative to the RSU and/or to other vehicles or determine the absolute location of each vehicle. An RSU may coordinate vehicle access to an intersection, manage vehicle speeds and coordinate or control vehicle actions such as slowing, stopping, and changing lanes or sending a vehicle to a particular location.Type: GrantFiled: September 1, 2022Date of Patent: February 27, 2024Assignee: QUALCOMM IncorporatedInventors: Bo Zheng, Yinghua Yang, Ning Luo, Gengsheng Zhang
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Patent number: 11914049Abstract: A mobile device may be configured to improve measurement of carrier phase (CP) in received satellite signals for satellite positioning system (SPS) operations. For example, this may enable an SPS receiver to measure CP of at least a first positioning signal and a second positioning signal each received from the same satellite vehicle. A corrected CP of the first positioning signal may be estimated based on the measured CP of the first positioning signal and on the measured CP of the second positioning signal.Type: GrantFiled: February 4, 2021Date of Patent: February 27, 2024Assignee: QUALCOMM IncorporatedInventors: Rayman Wai Pon, Jordan Cookman, Gengsheng Zhang
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Patent number: 11892545Abstract: In an aspect, a user equipment (UE) receives a spoofing alert message from either a server or an internet-of-things (IOT) device that indicates whether a spoofed Global Navigation Satellite System (GNSS) condition is present. Based on determining that the spoofing alert message indicates that a spoofed GNSS condition is present, the UE determines, based on the spoofing alert message, a location of a spoofer broadcasting a spoofed GNSS signal, determines, based on the location of the spoofer and a current location of the UE, that the UE is within a receiving area of the spoofed GNSS signal, and determines a position of the UE without using the spoofed GNSS signal.Type: GrantFiled: April 23, 2021Date of Patent: February 6, 2024Assignee: QUALCOMM IncorporatedInventors: Han Zhang, Ning Luo, Gengsheng Zhang, Bo Zheng, Yinghua Yang, Min Wang
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Publication number: 20240027625Abstract: An Real-Time Kinematic (RTK) and/or Differential GNSS (DGNSS) system is disclosed in which correction data from a plurality of reference stations is provided to the mobile device. A selection of reference stations (from which correction data is provided to the mobile device) can be made based on factors such as the approximate location of the mobile device, geometry of the reference stations, and/or other factors. The mobile device can combine the correction data from the plurality of reference stations in different ways to determine an accurate position fix for the mobile device, without interpolating correction data from the plurality of reference stations.Type: ApplicationFiled: September 28, 2023Publication date: January 25, 2024Inventors: Ning LUO, Min WANG, Gengsheng ZHANG, Bo ZHENG, Yinghua YANG, Han ZHANG
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Publication number: 20230417855Abstract: Aspects presented herein may improve the performance and accuracy of RF-based positioning. Aspects presented herein may enable a device to use RF Doppler measurements to detect and mitigate multipath effects in RF-based positioning. The RF-based positioning may include satellite navigation, terrestrial positioning system, and/or indoor positioning. In one aspect, a UE receives, via a receiver, signals from one or more entities. The UE determines whether each received signal is a multipath signal based on a Doppler shift measurement. The UE de-weights or excludes one or more signals of the received signals in estimating a position of the UE based on whether the respective received signal is determined to be a multipath signal.Type: ApplicationFiled: June 28, 2022Publication date: December 28, 2023Inventors: Yuxiang PENG, Ning LUO, Bo ZHENG, Jingchao BAO, Min WANG, Gengsheng ZHANG, Yinghua YANG
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Patent number: 11818626Abstract: Techniques for providing positioning information to a mobile device are discussed. An example apparatus for determining a location of a mobile device includes at least one server comprising a data structure containing precise positioning subscription options associated with the mobile device, a plurality of client internet of things devices configured to communicate with the at least one server, such that at least one of the plurality of client internet of things devices is a serving internet of things device configured to provide precise positioning information to the mobile device, and such that the serving internet of things device is selected from the plurality of client internet of things devices based on the precise positioning subscription options.Type: GrantFiled: February 26, 2021Date of Patent: November 14, 2023Assignee: QUALCOMM IncorporatedInventors: Ning Luo, Yinghua Yang, Bo Zheng, Gengsheng Zhang, Han Zhang
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Patent number: 11802971Abstract: An Real-Time Kinematic (RTK) and/or Differential GNSS (DGNSS) system is disclosed in which correction data from a plurality of reference stations is provided to the mobile device. A selection of reference stations (from which correction data is provided to the mobile device) can be made based on factors such as the approximate location of the mobile device, geometry of the reference stations, and/or other factors. The mobile device can combine the correction data from the plurality of reference stations in different ways to determine an accurate position fix for the mobile device, without interpolating correction data from the plurality of reference stations.Type: GrantFiled: March 2, 2021Date of Patent: October 31, 2023Assignee: QUALCOMM IncorporatedInventors: Ning Luo, Min Wang, Gengsheng Zhang, Bo Zheng, Yinghua Yang, Han Zhang
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Patent number: 11796687Abstract: Techniques are provided for applying plate tectonic model information to improve the accuracy of base station assisted satellite navigation systems. An example method for determining a location of a mobile device includes receiving base station measurement, coordinate and epoch information, receiving base station velocity information, receiving signals from a plurality of satellite vehicles, and determining the location of the mobile device based on the signals received from the plurality of satellite vehicles, the base station measurement, coordinate and epoch information, and the station velocity information.Type: GrantFiled: February 3, 2021Date of Patent: October 24, 2023Assignee: QUALCOMM IncorporatedInventors: Min Wang, Ning Luo, Gengsheng Zhang, Yuxiang Peng
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Publication number: 20230324566Abstract: Systems and techniques are provided for determining positioning. For example, the systems and techniques can include obtaining an inertial height measurement, wherein the inertial height measurement is obtained based on a determination that one or more positioning signals are unavailable. A height constraint can be generated using the inertial height measurement, wherein the height constraint is generated based at least in part on a transition matrix. One or more positioning measurements can be determined based on using the height constraint as a real-time kinematic (RTK) positioning input.Type: ApplicationFiled: April 8, 2022Publication date: October 12, 2023Inventors: Min WANG, Gengsheng ZHANG, Ning LUO
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Publication number: 20230288570Abstract: Described are methods, systems, and devices for correcting ionospheric error. In some aspects, a mobile device equipped with a Global Navigation Satellite System (GNSS) receiver is configured to determine a positioning measurement of a GNSS signal. The mobile device is further configured to receive augmentation data from an augmentation system. When the mobile device is unable to obtain newer augmentation data, the mobile device can instead obtain augmentation data associated with historical Total Electron Content (TEC) values. In such instances, the augmentation data will have been generated to represent ionospheric delay during a time period that ended before the augmentation data is obtained. Based on the augmentation data associated with historical TEC values and a pierce point of the received GNSS signal, an ionospheric error in the positioning measurement of the GNSS signal can be determined and corrected.Type: ApplicationFiled: May 15, 2023Publication date: September 14, 2023Inventors: Min WANG, Ning LUO, Gengsheng ZHANG, Kannan MUTHURAMAN
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Patent number: 11686850Abstract: Described are methods, systems, and devices for correcting ionospheric error. In some aspects, a mobile device equipped with a Global Navigation Satellite System (GNSS) receiver is configured to determine a positioning measurement of a GNSS signal. The mobile device is further configured to receive augmentation data from an augmentation system. When augmentation data for a current measurement period is unavailable, the mobile device can obtain augmentation data associated with Total Electron Content (TEC) values (e.g., vertical TEC values) during one or more prior measurement periods. Based on the augmentation data associated with TEC values during one or more prior measurement periods and a pierce point of the received GNSS signal, an ionospheric error in the positioning measurement of the GNSS signal can be determined and corrected.Type: GrantFiled: July 15, 2021Date of Patent: June 27, 2023Assignee: QUALCOMM IncorporatedInventors: Min Wang, Ning Luo, Gengsheng Zhang, Kannan Muthuraman
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Patent number: 11675091Abstract: Techniques described herein leverage multi-constellation, multi-frequency (MCMF) functionality to provide a local Real-Time Kinematic (RTK) solution for a mobile device in which an initial highly-accurate location determination for the mobile device can be leveraged to generate RTK correction information that can be used to make subsequent, highly-accurate location determinations without the need for measurement information from an RTK base station. This RTK correction information can be applied to Global Navigation Satellite System (GNSS) measurements taken by the mobile device over a long period of time while retaining the ability to produce highly-accurate location determinations for the mobile device. And additional correction information may be obtained and applied to the RTK correction information to extend this period of time even longer.Type: GrantFiled: August 20, 2020Date of Patent: June 13, 2023Assignee: QUALCOMM IncorporatedInventors: Min Wang, Mangesh Chansarkar, Ning Luo, Gengsheng Zhang
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Patent number: 11668840Abstract: A Real-Time Kinematic (RTK) solution is provided to mobile devices having multi-constellation, multi-frequency (MCMF) functionality, in which a single base station may have a baseline much farther than traditional base station. To enable this, embodiments account for differences in atmospheric effects between the rover station and base station when determining a GNSS position fix for a mobile device (rover station), allowing for a separate tropospheric delay error for a base station to be determined. Embodiments may use additional satellite measurements for which no RTK correction is available, and may further use orbital clock correction for these additional satellite measurements.Type: GrantFiled: August 20, 2020Date of Patent: June 6, 2023Assignee: QUALCOMM IncorporatedInventors: Min Wang, Mangesh Chansarkar, Ning Luo, Gengsheng Zhang, David Tuck, Bo Zheng, Yinghua Yang, Han Zhang
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Patent number: 11619745Abstract: Techniques for enhanced Global Navigation Satellite Systems (GNSS) position determination can include capturing an image, from a camera, of obstructions near a mobile device. Orientation information regarding the camera can is used to determine where, in the image, the horizon is situated, and which portions of the sky are blocked by the obstructions from the perspective of the mobile device. Information regarding the location of satellites in the sky is obtained, based on an estimated position of the mobile device. Obstructed satellites can then be identified by comparing the location of the satellites with the obstructed portions of the sky. In a GNSS position determination, information received from the obstructed satellites can then be disregarded or de-weighted accordingly. In some embodiments, the information regarding the blocked portions of the sky can be sent to a server and/or shared with other nearby mobile devices.Type: GrantFiled: October 29, 2019Date of Patent: April 4, 2023Assignee: QUALCOMM IncorporatedInventors: Ning Luo, Gengsheng Zhang, Bo Zheng, Yinghua Yang, Arnold Jason Gum
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Patent number: 11592580Abstract: A Real-Time Kinematic (RTK) solution is provided to mobile devices having multi-constellation, multi-frequency (MCMF) functionality, in which a single base station may have a baseline much farther than traditional base station and where the high accuracy positioning is achieved in a relatively short period of time. To enable this, embodiments involve modeling of an ionosphere-free carrier phase corresponding to combinations of at least three signals received from one or more satellites. The modeling retains the integer nature of carrier phase ambiguities, thereby allowing for fast convergence in determining the integer ambiguity of the carrier phases.Type: GrantFiled: August 20, 2020Date of Patent: February 28, 2023Assignee: QUALCOMM IncorporatedInventors: Min Wang, Ning Luo, Gengsheng Zhang
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Publication number: 20230035711Abstract: A method includes: receiving one or more positioning signals; determining that a UE is line-of-sight to fewer than a threshold number of positioning signal sources; determining a first position estimate hypothesis for the UE using a first position estimating process and one or more first measurements of the positioning signal(s); determining a second position estimate hypothesis for the UE using a second position estimating process and one or more second measurements of the positioning signal(s), wherein the second position estimating process uses a second parameter value of a parameter and the parameter is absent from the first position estimating process or has a first parameter value that is different from the second parameter value; and reporting a reported position estimate based on the first position estimate hypothesis or the second position estimate hypothesis in response to the UE being line-of-sight to fewer than the threshold number of positioning signal sources.Type: ApplicationFiled: July 31, 2021Publication date: February 2, 2023Inventors: Bo ZHENG, Chandrasekhar JAYARAM, Gengsheng ZHANG, Yinghua YANG, Subrahmanyam Anand MANTRAVADI VENKATA
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Publication number: 20230017707Abstract: Described are methods, systems, and devices for correcting ionospheric error. In some aspects, a mobile device equipped with a Global Navigation Satellite System (GNSS) receiver is configured to determine a positioning measurement of a GNSS signal. The mobile device is further configured to receive augmentation data from an augmentation system. When augmentation data for a current measurement period is unavailable, the mobile device can obtain augmentation data associated with Total Electron Content (TEC) values (e.g., vertical TEC values) during one or more prior measurement periods. Based on the augmentation data associated with TEC values during one or more prior measurement periods and a pierce point of the received GNSS signal, an ionospheric error in the positioning measurement of the GNSS signal can be determined and corrected.Type: ApplicationFiled: July 15, 2021Publication date: January 19, 2023Inventors: Min WANG, Ning LUO, Gengsheng ZHANG, Kannan MUTHURAMAN