公开(公告)号：US20240422728A1

公开(公告)日：2024-12-19

申请号：US18335093

申请日：2023-06-14

Applicant: QUALCOMM Incorporated

Inventor： Benjamin TARLOW ,  Murray JARVIS

IPC: H04W64/00

Abstract: Disclosed are techniques for positioning. In an aspect, a positioning entity obtains a set of error distributions associated with a set of locations associated with an environment, wherein each error distribution of the set of error distributions indicates an expected error distribution of positioning measurements associated with a corresponding location of the set of locations, obtains one or more positioning measurements obtained by a user equipment (UE) located within the environment; and determines a location estimate of the UE within the environment based on a comparison of uncertainty values associated with the one or more positioning measurements to the set of error distributions.

公开(公告)号：US20180180683A1

公开(公告)日：2018-06-28

申请号：US15389613

申请日：2016-12-23

Applicant: QUALCOMM Incorporated

Inventor： Benjamin TARLOW ,  Murray Jarvis ,  William Morrison

IPC: G01R33/00

CPC classification number: G01R33/0035 ,  G01R33/02

Abstract: Certain aspects of the present disclosure generally relate to magnetometer calibration. In some aspects, a device may obtain multiple sets of magnetic field measurements corresponding to multiple local magnetic field strengths, wherein each set of magnetic field measurements is measured in association with an unknown local magnetic field strength. The device may calculate multiple error values using the multiple sets of magnetic field measurements, estimated values of the multiple local magnetic field strengths, and estimated hard iron bias values. The device may identify a set of hard iron bias values for magnetometer calibration based at least in part on comparing the multiple error values. The device may calibrate a magnetometer using the identified set of hard iron bias values.