公开(公告)号：US20190086555A1

公开(公告)日：2019-03-21

申请号：US15706501

申请日：2017-09-15

Applicant: QUALCOMM Incorporated

Inventor： Harisrinivas CHANDRASEKAR ,  Prabhu KANDASAMY ,  Naveen Kumar V. BONDA

IPC: G01S19/25 ,  G01S19/09 ,  H04L12/18 ,  H04W4/02

Abstract: A method for validating time assistance data includes receiving, at a mobile device, the time assistance data via a first wireless communication technology from a serving cell. The method also includes obtaining a reference global navigation satellite system (GNSS) time, at the mobile device, via a second wireless communication technology and determining whether the time assistance data is valid based on the reference GNSS time. Further included in the method is determining a validated GNSS time based on the time assistance data in response to determining that the time assistance data is valid.