公开(公告)号：US20150133154A1

公开(公告)日：2015-05-14

申请号：US14537744

申请日：2014-11-10

Applicant: QUALCOMM Incorporated

Inventor： Ju-yong DO ,  Gengsheng ZHANG ,  Lionel Jacques GARIN ,  Sai Pradeep VENKATRAMAN ,  Weiyi LIU ,  Sundar RAMAN

IPC: G01S5/02 ,  H04W64/00

CPC classification number: G01S5/0252 ,  G01S5/0236 ,  H04W64/00

Abstract: Methods and apparatus for processing positioning assistance data are provided. An exemplary method includes receiving, from a positioning server, virtual access point (VAP) data including a list of unique identifiers, and determining a location of a mobile device by using the VAP. The VAP data indicates that the unique identifiers included on the list identify signals originating from the same physical access point. The unique identifiers can be MAC addresses. In an example, the location determining the can include actively scanning a signal identified by a unique identifier on the list and not actively scanning a different signal identified by a different unique identifier also on the list. Not scanning the other MAC addresses that are on the access point's list and assigned to the mobile device keeps the mobile device from performing duplicative scanning that wastes time, processor cycles, and energy.

Abstract translation: 提供了用于处理定位辅助数据的方法和装置。 一种示例性方法包括从定位服务器接收包括唯一标识符的列表的虚拟接入点（VAP）数据，以及通过使用VAP来确定移动设备的位置。 VAP数据指示列表中包括的唯一标识符识别源自相同物理接入点的信号。 唯一标识符可以是MAC地址。 在一个示例中，确定该位置的位置可以包括主动地扫描由列表上的唯一标识符标识的信号，而不主动地扫描由列表上的不同唯一标识符标识的不同信号。 不扫描接入点列表上分配给移动设备的其他MAC地址，使移动设备不会执行浪费时间，处理器周期和能量的重复扫描。

公开(公告)号：US20150065150A1

公开(公告)日：2015-03-05

申请号：US14018324

申请日：2013-09-04

Applicant: QUALCOMM Incorporated

Inventor： Weihua GAO ,  Gengsheng ZHANG ,  Sai Pradeep VENKATRAMAN

IPC: H04W16/00

CPC classification number: H04W16/00 ,  H04W16/18

Abstract: A level 3 (L3) sparse network almanac (SNA) is generated using data from a base station almanac with information for a plurality of base stations. The information for base stations includes cell identifiers that include an L3 region code that is one layer above a cell tower identification level. Cell boundaries are determined from the base station information. The cell boundaries are used to estimate a region of coverage for the L3 SNA, which may be stored in a database. For example, region points may be generated from the cell boundaries, and used to estimate the region of coverage for the L3 SNA. The region of coverage may be determined, e.g., as a minimum enclosing circle or other similar techniques. The larger of an estimated region size parameter, e.g., a radius of a circle, and a default size may be used for the region of coverage.

Abstract translation: 使用具有用于多个基站的信息的来自基站历书的数据来生成3级（L3）稀疏网络历书（SNA）。 用于基站的信息包括小区标识符，其包括高于小区塔标识级别的一层的L3区域码。 从基站信息确定小区边界。 小区边界用于估计可以存储在数据库中的L3 SNA的覆盖区域。 例如，区域点可以从小区边界生成，并用于估计L3 SNA的覆盖区域。 可以确定覆盖区域，例如，作为最小围圈或其他类似技术。 估计的区域大小参数中较大的一个（例如圆的半径）和默认大小可以用于覆盖区域。

公开(公告)号：US20140107919A1

公开(公告)日：2014-04-17

申请号：US13653263

申请日：2012-10-16

Applicant: QUALCOMM INCORPORATED

Inventor： Sai Pradeep VENKATRAMAN ,  Lionel Jacques GARIN ,  Gengsheng ZHANG

IPC: G01C21/00

CPC classification number: G01C21/00 ,  G01C21/20 ,  G01C21/206 ,  G01S5/0263 ,  G01S19/26 ,  G01S19/31 ,  G01S19/42 ,  G01S19/45 ,  G01S19/48

Abstract: Disclosed are systems, apparatus, devices, methods, computer program products, and other implementations, including a method of controlling navigation tasks on a mobile device that includes obtaining data representative of a route of travel for the mobile device, obtaining a list of navigation tasks associated with the route of travel for the mobile device, and performing one or more navigation tasks in accordance with the list of navigation tasks based, at least in part, on proximity of the mobile device to one or more points on the route of travel. Performing the one or more navigation tasks includes one or more of, for example, obtaining satellite positioning assistance data in response to a determination that the mobile device is transitioning from an indoor area to an outdoor area, and/or establishing a communication link with an access point.

Abstract translation: 公开了系统，装置，设备，方法，计算机程序产品和其他实现方式，包括控制移动设备上的导航任务的方法，该方法包括获取代表移动设备的行进路线的数据，获得导航任务列表 与移动设备的行进路线相关联，以及至少部分地基于移动设备与行进路线上的一个或多个点的接近度，根据导航任务列表执行一个或多个导航任务。 执行一个或多个导航任务包括例如响应于移动设备从室内区域转移到室外区域的确定而获得卫星定位辅助数据的一个或多个，和/或建立与 切入点。

公开(公告)号：US20240319383A1

公开(公告)日：2024-09-26

申请号：US18188426

申请日：2023-03-22

Applicant: QUALCOMM Incorporated

Inventor： Min WANG ,  Ning LUO ,  Gengsheng ZHANG ,  William MORRISON ,  Abdelmonaem LAKHZOURI

IPC: G01S19/26 ,  G01S19/03 ,  G01S19/29 ,  G01S19/47

CPC classification number: G01S19/26 ,  G01S19/03 ,  G01S19/29 ,  G01S19/47

Abstract: Techniques for extended wide-lane carrier phase availability using inertial measurement unit (IMU) feedback are disclosed. The techniques can include determining an IMU-based position differential based on first IMU data received from an IMU of the mobile device, detecting a wide-lane cycle slip based on a wide-lane differential carrier phase (DCP) measurement and the IMU-based position differential, responsive to detecting the wide lane cycle slip, adjusting the wide-lane DCP measurement based on the IMU-based position differential to obtain a corrected wide-lane DCP measurement, and generating a global navigation satellite system (GNSS)-based positioning estimate for the mobile device based on the corrected wide-lane DCP measurement.

公开(公告)号：US20230035711A1

公开(公告)日：2023-02-02

申请号：US17390923

申请日：2021-07-31

Applicant: QUALCOMM Incorporated

Inventor： Bo ZHENG ,  Chandrasekhar JAYARAM ,  Gengsheng ZHANG ,  Yinghua YANG ,  Subrahmanyam Anand MANTRAVADI VENKATA

IPC: H04W4/029

Abstract: 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.

公开(公告)号：US20230017707A1

公开(公告)日：2023-01-19

申请号：US17377255

申请日：2021-07-15

Applicant: QUALCOMM Incorporated

Inventor： Min WANG ,  Ning LUO ,  Gengsheng ZHANG ,  Kannan MUTHURAMAN

IPC: G01S19/07 ,  G01S19/40

Abstract: 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.

公开(公告)号：US20220283314A1

公开(公告)日：2022-09-08

申请号：US17190116

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Ning LUO ,  Min WANG ,  Gengsheng ZHANG ,  Bo ZHENG ,  Yinghua YANG ,  Han ZHANG

IPC: G01S19/07 ,  G01S19/41 ,  G01S19/44

Abstract: 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.

公开(公告)号：US20210263165A1

公开(公告)日：2021-08-26

申请号：US16797350

申请日：2020-02-21

Applicant: QUALCOMM Incorporated

Inventor： Bo ZHENG ,  Yinghua YANG ,  Ning LUO ,  Gengsheng ZHANG

IPC: G01S19/44 ,  G01S19/24 ,  G01S19/04 ,  G01S19/51 ,  H04W4/02 ,  H04W4/46

Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a vehicle to determine proximate vehicles, for example, vehicles within a pre-designated range or within broadcast distance or otherwise geographically proximate, through the use of broadcast or other messages sent by the other vehicles, and to obtain GNSS carrier phase measurement data from the proximate vehicles wherein the shared carrier GNSS phase measurement data may be utilized to update the location(s) of proximate vehicles.

公开(公告)号：US20210132180A1

公开(公告)日：2021-05-06

申请号：US16668063

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： Yinghua YANG ,  Bo ZHENG ,  Gengsheng ZHANG ,  Ning LUO

IPC: G01S5/02

Abstract: A method of determining a location of a measurement device includes determining, at a server: measurement times of first positioning signal measurements, of first positioning signals from first positioning signal sources and/or a subset of positioning signal sources of second positioning signal sources. The method includes sending at least one measurement command from the server to the measurement device to cause the measurement device to obtain the first positioning signal measurements in accordance with the measurement times and/or obtain second positioning signal measurements of second positioning signals sent from the subset of positioning signal sources. The method includes: receiving, at the server from the measurement device, measurement data corresponding to the first positioning signal measurements and/or the second positioning signal measurements; and determining, at the server, the location of the measurement device based on the measurement data.

公开(公告)号：US20210124057A1

公开(公告)日：2021-04-29

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 ,  G01S19/48 ,  G01S19/46 ,  G01S19/28 ,  G01S19/06 ,  G01S19/25 ,  G06T7/73

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.