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公开(公告)号：US11592580B2
公开(公告)日：2023-02-28
申请号：US16998892
申请日：2020-08-20
Applicant: QUALCOMM Incorporated
Inventor： Min Wang , Ning Luo , Gengsheng Zhang
Abstract: 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.
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公开(公告)号：US11550065B2
公开(公告)日：2023-01-10
申请号：US17106772
申请日：2020-11-30
Applicant: QUALCOMM Incorporated
Inventor： Min Wang , Gengsheng Zhang , Ning Luo , Yuxiang Peng
Abstract: Disclosed are various techniques for wireless communication. In one aspect, a user equipment (UE) may receive, from a satellite vehicle (SV), a signal of a first frequency band, estimate a first ionospheric delay residual error based on the signal of the first frequency band, calculate a first pseudorange measurement and a first carrier phase measurement based on the first ionospheric delay residual error, and estimate a position using the first pseudorange measurement and the first carrier phase measurement. In some aspects, the ionospheric delay residual error is estimated via a Klobuchar equation. In some aspects, the position is estimated using ultra-long baseline real-time kinematics (RTK) positioning.
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公开(公告)号：US10659921B2
公开(公告)日：2020-05-19
申请号：US15275156
申请日：2016-09-23
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep Venkatraman , Dominic Gerard Farmer , Aditya Srivastava , Gengsheng Zhang
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.
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94.发明授权公开(公告)号：US10383072B2
公开(公告)日：2019-08-13
申请号：US15635830
申请日：2017-06-28
Applicant: QUALCOMM Incorporated
Inventor： Ju-Yong Do , Sai Pradeep Venkatraman , Weihua Gao , Gengsheng Zhang , Rayman Pon
Abstract: Disclosed is an apparatus and method for synchronization of sensing operations performed by a plurality of devices. The method may include collecting sensing capabilities of one or more connected devices that are communicably coupled with a central device. Each connected device may include one or more sensors, and the sensing capabilities may include at least sensor type and sensing interval for each sensor. The method may also include coordinating sensing operations performed by the central device and the one or more connected devices.
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公开(公告)号：US20180206078A1
公开(公告)日：2018-07-19
申请号：US15406258
申请日：2017-01-13
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep Venkatraman , Weihua Gao , Gengsheng Zhang
CPC classification number: H04W4/043 , G01C5/06 , G01C21/206 , H04W4/025
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.
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Patent Agency Ranking
96.发明授权公开(公告)号：US09983291B2
公开(公告)日：2018-05-29
申请号：US14537747
申请日：2014-11-10
Applicant: QUALCOMM Incorporated
Inventor： Ju-Yong Do , Sai Pradeep Venkatraman , Sundar Raman , Weiyi Liu , Gengsheng Zhang
CPC classification number: G01S5/0063 , G01S5/0226 , G01S5/0236
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.
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公开(公告)号：US20180073951A1
公开(公告)日：2018-03-15
申请号：US15260624
申请日：2016-09-09
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep Venkatraman , Gengsheng Zhang , Arnold Gum
IPC: G01L27/00
CPC classification number: G01L27/002 , G01C5/06 , G01C21/165 , G01C25/00 , G01L27/005 , G01P13/00 , H04W4/023 , H04W4/025 , H04W4/33 , H04W64/00
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).
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公开(公告)号：US09906922B2
公开(公告)日：2018-02-27
申请号：US15142782
申请日：2016-04-29
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep Venkatraman , Lionel Jacques Garin , Gengsheng Zhang
IPC: H04W24/00 , H04W4/04 , H04W4/02 , H04W4/22 , H04W64/00 , G01C21/00 , G01C21/20 , G01S5/02 , H04W52/02
CPC classification number: H04W4/30 , G01C21/005 , G01C21/206 , G01S5/02 , G01S5/0289 , H04W4/02 , H04W4/023 , H04W4/043 , H04W4/90 , H04W52/0274 , H04W64/00 , Y02D70/00
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.
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公开(公告)号：US20170295458A1
公开(公告)日：2017-10-12
申请号：US15096203
申请日：2016-04-11
Applicant: QUALCOMM Incorporated
Inventor： Weihua Gao , Meghna Agrawal , Gengsheng Zhang , Ju-Yong Do , Sai Pradeep Venkatraman
IPC: H04W4/02 , H04B17/318
CPC classification number: H04W4/02 , H04B17/318 , H04W64/003 , H04W64/006
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. Disclosed methods also pertain to a User Equipments (UE), which may receive wireless signals with mobility indication information associated with an AP; and determine a suitability of the AP for determining the UEs location based on the received mobility indication information.
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公开(公告)号：US20170078851A1
公开(公告)日：2017-03-16
申请号：US14851456
申请日：2015-09-11
Applicant: QUALCOMM Incorporated
Inventor： Meghna Agrawal , Sai Pradeep Venkatraman , Ashok Bhatia , Gengsheng Zhang
CPC classification number: H04W4/021 , G01S5/0252 , H04W4/33 , H04W64/00
Abstract: Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or otherwise support one or more operations or techniques for use in associating (tagging) a signal observation with a location tag, such as, for example, with a mobile communication device.
Abstract translation: 本文所公开的示例性方法，装置或制品可以全部或部分地用于促进或以其他方式支持用于将信号观察与位置标签相关联（标记）的一种或多种操作或技术，例如 例如，与移动通信设备。
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