公开(公告)号：US10425800B1

公开(公告)日：2019-09-24

申请号：US16101780

申请日：2018-08-13

Applicant: Verizon Patent and Licensing Inc.

Inventor： Abhishek R. Panchal ,  Mingxing Li

IPC: H04W4/90 ,  H04L29/06 ,  H04W76/50 ,  H04W4/02

Abstract: A method may include receiving, a session initiation protocol (SIP) Invite message associated with a Voice over WiFi (VoWiFi) call made by a user device and determining if the SIP Invite message includes a geolocation header having location information associated with the user device. The method may also include in response to determining that the SIP Invite message includes a geolocation header having location information, initiating a location session with the user device and generating assistance data based on the location information, wherein the assistance data is to be used by the user device to generate assisted global positioning system (aGPS) measurements. The method may further include transmitting, to the user device and during the location session, the assistance data, receiving, from the user device, aGPS measurements based on the assistance data and determining, based on the aGPS measurements, a location of the user device.

公开(公告)号：US20200053539A1

公开(公告)日：2020-02-13

申请号：US16542480

申请日：2019-08-16

Applicant: Verizon Patent and Licensing Inc.

Inventor： Abhishek R. Panchal ,  Mingxing Li

IPC: H04W4/90 ,  H04W76/50 ,  H04L29/06 ,  H04W4/02

Abstract: A method may include receiving, a session initiation protocol (SIP) Invite message associated with a Voice over WiFi (VoWiFi) call made by a user device and determining if the SIP Invite message includes a geolocation header having location information associated with the user device. The method may also include in response to determining that the SIP Invite message includes a geolocation header having location information, initiating a location session with the user device and generating assistance data based on the location information, wherein the assistance data is to be used by the user device to generate assisted global positioning system (aGPS) measurements. The method may further include transmitting, to the user device and during the location session, the assistance data, receiving, from the user device, aGPS measurements based on the assistance data and determining, based on the aGPS measurements, a location of the user device