公开(公告)号：US09817112B2

公开(公告)日：2017-11-14

申请号：US14967132

申请日：2015-12-11

Applicant: QUALCOMM Incorporated

Inventor： Ju-yong Do ,  Sai Pradeep Venkatraman

IPC: H04W24/00 ,  G01S13/76 ,  G01S5/02

CPC classification number: G01S13/765 ,  G01S5/021

Abstract: Approaches for enhancing range-based position determination using pairwise error detection and compensation are provided. One method for enhancing a position estimate of a first node may include performing measurements at the first node using a signal received from a second node, and receiving measurements from the second node. The received measurements may be performed at the second node using a signal provided by the first node. The method may further include determining pairwise comparisons of the performed measurements and the received measurements, and compensating the measurements performed at the first node, based on the pairwise comparisons, for estimating the position of the first node. Systems and apparatuses for performing the various position determination methods are further presented.

公开(公告)号：US09843890B2

公开(公告)日：2017-12-12

申请号：US15074481

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Ju-yong Do ,  Meghna Agrawal ,  Gengsheng Zhang

IPC: H04W24/00 ,  H04W4/02 ,  H04W4/18

CPC classification number: H04W4/02 ,  G01S1/00 ,  G01S5/00 ,  G01S5/021 ,  G01S5/0252 ,  H04W4/185 ,  H04W64/00

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.

公开(公告)号：US10897686B2

公开(公告)日：2021-01-19

申请号：US15080481

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Ju-yong Do ,  Rayman Wai Pon ,  Gengsheng Zhang

IPC: H04W4/02 ,  G01S5/02 ,  G01S19/23 ,  G01S19/13 ,  H04W56/00

Abstract: In an embodiment, a given entity obtains a location of at least one terrestrial transmit station of a Synchronized Wireless Transmission Network (SWTN), transmit station calibration information associated with the at least one terrestrial transmit station and a location of a user equipment (UE) that is in wireless communication range with the at least one terrestrial transmit station. The given entity estimates the time calibration value for the UE based on the obtained transmit station location, the determined transmit station calibration information and the determined location of the UE. In another embodiment, a server obtains time calibration values that are estimated for each UE in the population of UEs. The server aggregates the estimated time calibration values based on device model and/or device operation mode, and calculates a representative time calibration value for UEs sharing the device model and/or device operation mode.

公开(公告)号：US09588216B2

公开(公告)日：2017-03-07

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: H04W24/00 ,  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地址会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。