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).

  • Patent number: 10123295
    Abstract: Method, device, computer program product, and apparatus to enable mobile device position optimization and reporting are described. Signals provided by a plurality of base transceiver stations (BTS) are received to determine a BTS-based position of the mobile device. A reference position of the mobile device is determined. A range measurement with respect to a target BTS is determined. In one aspect, one or more unreliable BTSs may be detected and reported based on a positioning measurement quality, a range measurement quality, or combinations thereof. In one aspect, the positioning measurement quality is determined based on a difference between the reference position of the mobile device and the BTS-based position of the mobile device. In one aspect, the range measurement quality is determined based on a difference between a measured range/distance and a reference/expected range/distance.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 6, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Rayman Pon, Ju-Yong Do, Gengsheng Zhang
  • Publication number: 20180270783
    Abstract: Disclosed embodiments facilitate combining a plurality of wireless signal measurement sets with displacement measurements within some time interval of a position request to determine a User Equipment (UE) position. A first set of wireless signal measurements may be obtained from a first set of base stations at a first time at a first location. Subsequently, a second set of wireless signal measurements from a second set of base stations may be obtained at a second time at a second location distinct from the first location. A displacement measurement (e.g .a displacement vector) between the first location and the second location may be obtained. The position of the UE at the second location may then be determined based on the first and second sets of wireless signal measurements and the displacement measurement. In some embodiments, the first and second sets of wireless signal measurements may each be deficient measurement sets.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 20, 2018
    Inventors: Sai Pradeep Venkatraman, Ju-Yong Do, Gengsheng Zhang
  • Patent number: 10080131
    Abstract: Method and apparatus for processing access point (AP) crowdsourcing data are disclosed. In one embodiment, the method comprises receiving WiFi scan lists and their corresponding location descriptions, where the WiFi scan lists and their corresponding location descriptions include information observed about at least one access point device, consolidating the WiFi scan lists and their corresponding location descriptions based at least in part on a set of selection criteria to generate a WiFi AP record, where the set of selection criteria comprises a maximum number of scan lists to be uploaded in a predetermined period of time and the maximum number of scan lists to be uploaded in a single upload, and uploading the WiFi AP record to a crowdsourcing server.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: September 18, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Weihua Gao, Gengsheng Zhang, Ashok Bhatia
  • Publication number: 20180206078
    Abstract: Disclosed is a method and apparatus for utilizing pressure sensor reliability during indoor positioning performed by a mobile device. The method may include performing an indoor positioning process on the mobile device to estimate a current location of the mobile device within an indoor environment. The method may also include analyzing a mapping between indoor positions and pressure sensor measurement reliability. Furthermore, the method may also include altering a usage of pressure sensor measurements collected by the mobile device for the indoor positioning process at the current estimated location of the mobile device within the indoor environment responsive to the mapping indicating that the estimated current location of the mobile device within the indoor environment is associated with an unreliability of pressure sensor measurements.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 19, 2018
    Inventors: Sai Pradeep Venkatraman, Weihua Gao, Gengsheng Zhang
  • Patent number: 9998854
    Abstract: Methods for mobility indication of wireless Access Points (APs) are disclosed. An AP may determine mobility indication information, based, in part, on at least one of: configuration information on the AP pertaining to mobility; and/or wireless signal measurements associated with the AP, and/or captured images associated with the AP, and/or sensor measurements associated with the AP. The AP may transmit the mobility indication information for the AP. The mobility indication information may indicate that the AP is mobile and/or characterize the mobility. The mobility indication information may further include a request to remove information associated with the AP from location determination databases, location assistance databases, and/or base station almanacs.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: June 12, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Weihua Gao, Meghna Agrawal, Gengsheng Zhang, Ju-Yong Do, Sai Pradeep Venkatraman
  • Patent number: 9983291
    Abstract: Methods, apparatuses, and devices are disclosed to estimate a position of a mobile device using, for example, beacon signals transmitted using virtual access points utilizing a single, physical transceiver. Determination that beacon signals emanate from a single, physical transceiver may be based, at least in part, on a similarity among acquired beacon signals conveying identifiers, such as media access control identification (MAC ID) addresses and/or basic service set identifiers (BSSIDs), and on measurement of beacon signal characteristics, such as received signal strength at a mobile device and/or round trip time between the mobile device and the transceiver.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 29, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ju-Yong Do, Sai Pradeep Venkatraman, Sundar Raman, Weiyi Liu, Gengsheng Zhang
  • Publication number: 20180091946
    Abstract: Method, mobile device, computer program product, and apparatus for performing Fine Grain Position Data Collection is described. In one aspect a mobile device performs measurement batching of data, for example positioning and AP measurement data. In some aspects, the mobile device processes positioning and AP measurement data in response to a batch trigger. The mobile device may send the processed measurement batch to a server for analysis or processing. A batch trigger may include receiving a positioning fix with high confidence such that the mobile device may backfilter or otherwise correct mobile sensor based positioning data associated with AP measurements. The server may interpret the data from the measurement batches identified from a number of different mobile devices to calculate position of APs within an environment.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: Sai Pradeep VENKATRAMAN, Dominic Gerard FARMER, Aditya SRIVASTAVA, Gengsheng ZHANG
  • Publication number: 20180091939
    Abstract: Method, mobile device, computer program product, and apparatus relating to designating and implementing a geofence containing an AP measurement data configuration. The AP measurement data configuration may be used to specify how a mobile device should to perform while within the geofence. The AP measurement data configuration may include instructions to control collection such as: “disable,” “passive,” and “batch.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: Sai Pradeep VENKATRAMAN, Aditya SRIVASTAVA, Gengsheng ZHANG
  • Publication number: 20180087909
    Abstract: Method, mobile device, computer program product, and apparatus relating to beacon data collection. A user context at a mobile device may be obtained and a recommended configuration for beacon data collection can be determined according to the recommended configuration. A reliability metric may be determined as part of determining the recommended beacon collection configuration. The beacon data collection may include filter or weight to define when or how to send or collect beacon data and/or positioning data.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: Ju-Yong Do, Sai Pradeep Venkatraman, Weihua Gao, Meghna Agrawal, Gengsheng Zhang
  • Publication number: 20180084537
    Abstract: A method of wireless communication includes: generating a communication that includes attribute indications corresponding to a plurality of attributes of a transmitting device; and transmitting the communication wirelessly from the transmitting device; where the attribute indications include: a device identity of the transmitting device; a mobility indication indicative of whether the transmitting device is mobile or static; a location indication indicative of a location of the transmitting device; and a privacy indication associated with a corresponding attribute of the transmitting device, the privacy indication indicating whether a receiving device that receives the attribute indications from the transmitting device is authorized to transmit information regarding the corresponding attribute of the transmitting device.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: Ju-Yong DO, Sai Pradeep VENKATRAMAN, Weihua GAO, Meghna AGRAWAL, Gengsheng ZHANG
  • Publication number: 20180084384
    Abstract: A method of locating a target device includes: producing, at a query device, a request for a location of a target device, the query device including a first radio, of a first type, configured to communicate wirelessly using a first communication protocol, the target lacking a radio of the first type but including a second radio, of a second type, configured to communicate wirelessly using a second communication protocol, the second communication protocol being incompatible with the first communication protocol; and transmitting the request wirelessly, from the query device to a first intermediate device, using the first radio.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: Sai Pradeep VENKATRAMAN, Ju-Yong DO, Weihua GAO, Meghna AGRAWAL, Gengsheng ZHANG
  • Publication number: 20180084517
    Abstract: A method of registering a target device includes: receiving a registration request, through a user interface, to register the target device; determining a suggested registration location for the target device; and providing an indication of the suggested registration location through the user interface.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: Ju-Yong DO, Sai Pradeep VENKATRAMAN, Weihua GAO, Meghna AGRAWAL, Gengsheng ZHANG
  • Publication number: 20180073951
    Abstract: Techniques provided herein are directed toward adjusting the rate at which a mobile device's barometric pressure sensor takes measurements, based on whether movement is detected from motion sensors, such as accelerometers, gyroscopes, and the like. Where movement is below a threshold (e.g., below a threshold speed or within a threshold distance), then the barometric pressure sensor can reduce the sampling rate to a rate that still enables the mobile device to account for changes in the weather. If movement is detected (e.g., greater than a threshold distance), then the sampling rate of the barometric pressure sensor increases (i.e., to a normal rate for determining vertical movement changes).
    Type: Application
    Filed: September 9, 2016
    Publication date: March 15, 2018
    Inventors: Sai Pradeep Venkatraman, Gengsheng Zhang, Arnold Gum
  • Patent number: 9906922
    Abstract: A method, in a mobile device, of controlling region determination by the mobile device, includes: determining a present pressure at the mobile device; determining, based on the present pressure and a reference pressure, that the mobile device moved from a first region to a second region within a structure, the first region and the second region being different regions of the structure and vertically displaced from each other; and performing region determination in response to determining that the mobile device moved from the first region to the second region.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: February 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Pradeep Venkatraman, Lionel Jacques Garin, Gengsheng Zhang
  • Patent number: 9906898
    Abstract: Disclosed are systems, methods and devices for application of determining position information for mobile devices. In specific implementations, measurement of a signal travel time and a signal's strength may be combined to characterize a transmission power of the signal's transmitter. The characterized transmission power may be applied to affect expected signal strength signature values for use of the signal's transmitter may be updated in order to enhance a location based service where location may be effected by accuracy of a transmitter's power.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ju-Yong Do, Sai Pradeep Venkatraman, Weihua Gao, Gengsheng Zhang, Lionel Jacques Garin
  • Patent number: 9900918
    Abstract: Method, device, and computer program product that may improve communications between a mobile device and an access point device are disclosed. In one embodiment, an access point device includes a transceiver configured to receive signals from a mobile device, a processor coupled to the transceiver, and a memory coupled to the processor, the memory having stored thereon code configured to be executed by the processor, the code instructing the processor to: control a plurality of beacons in the access point device, obtain range measurements using the plurality of beacons in the access point device, and assist calibration of a beacon in the mobile device using the range measurements obtained by the plurality of beacons in the access point device.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ju-Yong Do, Sai Pradeep Venkatraman, Weihua Gao, Amir Abbas Emadzadeh, Sundar Raman, Gengsheng Zhang
  • Patent number: 9843890
    Abstract: Methods and systems are disclosed for improving reliability in mobile device positioning. A mobile device generates position data for a device, receives a first access point position reliability state associated with the first access point, determines a reliability of the position data based on the first access point position reliability state and an estimated location of the first access point, determines a threshold reliability requirement of an application associated with the mobile device, compares the reliability of the position data to the threshold reliability requirement of the application, and provides the position data of the device based on the comparison. A network entity determines access point characteristics associated with an access point, generates a position reliability state for the access point, sends the position reliability state to a mobile device, receives position data associated with the mobile device, and determines a trustworthiness of the position data.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: December 12, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ju-yong Do, Meghna Agrawal, Gengsheng Zhang
  • Publication number: 20170339518
    Abstract: Methods and systems are disclosed for improving reliability in mobile device positioning. A mobile device generates position data for a device, receives a first access point position reliability state associated with the first access point, determines a reliability of the position data based on the first access point position reliability state and an estimated location of the first access point, determines a threshold reliability requirement of an application associated with the mobile device, compares the reliability of the position data to the threshold reliability requirement of the application, and provides the position data of the device based on the comparison. A network entity determines access point characteristics associated with an access point, generates a position reliability state for the access point, sends the position reliability state to a mobile device, receives position data associated with the mobile device, and determines a trustworthiness of the position data.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 23, 2017
    Inventors: Ju-yong DO, Meghna AGRAWAL, Gengsheng ZHANG
  • Patent number: 9826353
    Abstract: Methods and systems for utilizing priority based geofences are disclosed. A mobile device receives, from another device over a wireless network, at least one geofence, each of the at least one geofence having an assigned priority level indicating an importance of the at least one geofence, wherein the assigned priority level is one of a plurality of priority levels and is received from the other device over the wireless network, determines, based on the priority level of the at least one geofence, a geofence breach detection method and an evaluation rate, and monitors a position of the mobile device relative to the at least one geofence at the evaluation rate using the geofence breach detection method.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Pradeep Venkatraman, Aditya Narain Srivastava, Gengsheng Zhang
  • Patent number: 9813866
    Abstract: A method and apparatus for reporting almanac versions and almanac identification by a mobile station to a server is provided. The server compares the almanac version and almanac identification held by the mobile station with almanac versions and almanac identifications held by the server. The server then sends instructions to the mobile station to match the server versions of the almanac versions and almanac identifications for the almanac versions and almanac identifications that the mobile station should hold.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ju-Yong Do, Gengsheng Zhang, Kin F. Wong