公开(公告)号：US20240418868A1

公开(公告)日：2024-12-19

申请号：US18336665

申请日：2023-06-16

Applicant: QUALCOMM Incorporated

Inventor： Lohitha RATNARAJ ,  Sumit BHATTACHARYA ,  Jeffrey WONG

IPC: G01S19/39 ,  G01S19/25

Abstract: A method of wireless communication at a UE is disclosed herein. The method includes obtaining an indication of an occurrence of a GNSS error. The method includes storing, in memory and based on the indication, first position information for the UE that was obtained prior to the obtainment of the indication. The method includes obtaining, subsequent to an error recovery process, second position information for the UE. The method includes accepting or rejecting the second position information based on a comparison of the first position information, the second position information, and a set of conditions for the first position information and the second position information.

公开(公告)号：US20200096949A1

公开(公告)日：2020-03-26

申请号：US16579322

申请日：2019-09-23

Applicant: QUALCOMM Incorporated

Inventor： Sumit BHATTACHARYA ,  David TUCK ,  Naveen Kumar BONDA ,  Dominic Gerard FARMER

IPC: G04R20/02 ,  G01S19/25 ,  H04W4/02 ,  H04W4/40

Abstract: A method for maintaining timing accuracy in a mobile device includes: obtaining a range estimate using a signal received from a timing information source via a communication unit of the mobile device; obtaining position and velocity estimate information for the mobile device from a source of position and velocity information separate from the timing information source, the position and velocity estimate information being obtained from at least one sensor of the mobile device, or via a communication unit of the mobile device using a Vehicle-to-Everything wireless communication protocol, or a combination thereof; determining estimated clock parameters based on the position and velocity estimate information and the range estimate; and adjusting a clock of the mobile device based on the estimated clock parameters in response to a position-and-velocity-assisted timing uncertainty corresponding to the estimated clock parameters being below a timing uncertainty threshold.