公开(公告)号：US11619745B2

公开(公告)日：2023-04-04

申请号：US16666848

申请日：2019-10-29

Applicant: QUALCOMM Incorporated

Inventor： Ning Luo ,  Gengsheng Zhang ,  Bo Zheng ,  Yinghua Yang ,  Arnold Jason Gum

IPC: G01S19/21 ,  G06T7/73 ,  G01S19/06 ,  G01S19/25 ,  G01S19/28 ,  G01S19/46 ,  G01S19/48

Abstract: 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.

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

IPC: G01S19/44 ,  G01S19/07 ,  G01S19/32

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.

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

IPC: G01S19/40 ,  G01S19/44

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.

公开(公告)号：US10935663B2

公开(公告)日：2021-03-02

申请号：US15713155

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Zoltan Biacs ,  Ning Luo

IPC: G01S19/08 ,  G01S19/20 ,  G01S19/11

Abstract: Disclosed are a system, apparatus, and method for monitoring integrity of satellites, and global navigation satellite systems (GNSS). One or more satellites in one or more GNSS are monitored based on a reference crowdsourced integrity report. One or more satellite integrity metrics are determined for the one or more satellites based at least on signals from the one or more satellites. A position of the mobile device is estimated. The position of the mobile device and the one or more satellite integrity metrics are provided.

公开(公告)号：US10323942B2

公开(公告)日：2019-06-18

申请号：US15275014

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Benjamin Werner ,  William Morrison ,  Ning Luo ,  Ming Sun ,  Joseph Czompo

IPC: H04W4/38 ,  G01C21/14 ,  G01C21/16 ,  G01C22/00 ,  G01S19/26 ,  G01S19/49 ,  H04W4/029 ,  H04W4/33

Abstract: Techniques provided herein are directed toward enabling on-device learning to create user-specific movement models that can be used for dead reckoning. Because these moving models are user-specific, they can be later used to identify user-specific motions in a manner that provides for a dead reckoning location estimation. In some embodiments, these models can be focused on pedestrian movement, based on the repetitive motion that occurs when a user takes a stride (walking, jogging, running, etc.) or other repetitive motion (swimming, riding a horse, etc.).

公开(公告)号：US20180087903A1

公开(公告)日：2018-03-29

申请号：US15275014

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Benjamin Werner ,  William Morrison ,  Ning Luo ,  Ming Sun ,  Joseph Czompo

IPC: G01C21/14 ,  G01S19/49 ,  G01S19/26 ,  G01C21/16

CPC classification number: G01C21/14 ,  G01C21/16 ,  G01C21/165 ,  G01C22/006 ,  G01S19/26 ,  G01S19/49

Abstract: Techniques provided herein are directed toward enabling on-device learning to create user-specific movement models that can be used for dead reckoning. Because these moving models are user-specific, they can be later used to identify user-specific motions in a manner that provides for a dead reckoning location estimation. In some embodiments, these models can be focused on pedestrian movement, based on the repetitive motion that occurs when a user takes a stride (walking, jogging, running, etc.) or other repetitive motion (swimming, riding a horse, etc.).