Qualcomm Incorporated

Gaurav Lamba

Kirk Allan Burroughs

Ie-Hong Lin

Sanjeev Khushu

Zhimin Du

Yufei Wang

James Douglass DeLoach, Jr

Gengsheng Zhang

Sundar Raman

Cormac S Conroy

Zoltan F Biacs

Alejandro Raul Holcman

Praveen Dua

Eric P Bilange

Bruce Everett Wilson

George Joseph

Ferit Ozan Akgul

Jayal Madhukumar Mehta

James Deloach

Murthy S Vempati

Peter S Marx

Milind Patil

Bryan R Cook

Leyla S Celebi

Barbara L Haskins

James Douglass Deloach

Jayal M Mehta

Methods, systems, computer-readable media, and apparatuses for determining location are presented. One example method includes obtaining a route comprising an ordered set of waypoints; receiving an indication of traversal of the route beginning at a first waypoint and recording a time associated with the indication; determining location information and time information at a sampling rate; for each subsequent waypoint of the ordered set of waypoints: receiving a signal indicating arrival at a current waypoint of the ordered set of waypoints, determining a time and a ground truth associated with the signal, and determining error information associated with each determined location between the prior waypoint and the current waypoint; and providing the error information to a remote device.

Device, method, and system for determining location

Systems, methods, and devices enable group associations based on network determined location information. The various embodiments enable the ad-hoc creation of mobile device groups based on network determined locations. In an embodiment, a server may determine the location of a mobile device and based on the mobile device being located in a pairing zone may add the mobile device to a group. In an embodiment, the server may add the mobile device to the group following the occurrence of a trigger event, such as the mobile device pausing in a given pairing zone for a period of time. In an embodiment, the server may identify that mobile devices are located within a pairing zone and may add all the mobile devices in the pairing zone to the same group.

Group association based on network determined location

Techniques are provided, which may be implemented via various methods, apparatuses, and/or articles of manufacture. For example, an electronic device may obtain an estimated location of a mobile device, determine a quality of a geometric distribution of transmitting devices capable of transmitting wireless signals to the mobile device at the estimated location, and assign an uncertainty to the estimated location. In certain implementations, an electronic device may further determine an adapted transmission setting for a transmitting device and transmit a corresponding message to the transmitting device. In certain implementations, an electronic device may identify adapted assistance data for the mobile device and transmit a corresponding message to one or more other electronic devices.

Methods and apparatuses for characterizing and affecting mobile device location accuracy and/or uncertainty

The subject matter disclosed herein relates to determining a location fix of a mobile station based on identification information of a cellular base station included in a pilot signal.

Location determination of mobile device

Techniques for supporting location services with roaming are described. A method of supporting location services (LCS) for a mobile station roaming from a home network and communicating with a visited network includes receiving a domain name system (DNS) query at a DNS of the home network from a packet data serving node (PDSN) of the home network. The method also includes sending to the mobile station from the DNS of the home network an address of a serving position determining entity (S-PDE) in the visited network.

Method and apparatus for supporting location services with roaming

Techniques for supporting location services (LCS) with roaming are described. A method of supporting LCS in a network comprising a Secure User Plane Location (SUPL) enabled terminal (SET), a home SUPL location center (H-SLC), and a serving SUPL location center (S-SLC) includes receiving, at the H-SLC, a location request message for a location of the SET, where the location request message comprises an indication of a network location of the SET. The method includes sending, to the S-SLC in response to the location request message, a roaming request message. The method includes receiving, from the S-SLC in response to the roaming request message, a location report message comprising a position of the network location. The method also includes sending a reporting message comprising the position of the network location of the SET as the location of the SET.

Techniques to support location services for a roaming mobile station are described. The mobile station may communicate with a serving mobile switching center (MSC) in a serving network. A roaming service provider (RSP) network may map an actual MSC identity (MSCID) of the serving MSC to a generic MSCID and may provide the generic MSCID to a home network. A home mobile positioning center (H-MPC) may map the generic MSCID to an Internet Protocol (IP) address of a mapping server within the RSP network and may send a location request message containing a mobile station identity (MSID) to the mapping server. The mapping server may determine a serving mobile positioning center (S-MPC) based on the MSID and may forward the message to the S-MPC. The mapping server may also receive a location response message from the S-MPC and may forward the message to the H-MPC.

Method and apparatus for supporting location services for a roaming mobile station

Techniques for supporting location services with roaming are described. A mobile station interacts with a home mobile positioning center (H-MPC) in a home network for location services even when roaming. The mobile station communicates with a visited network for a data session and receives a request for its location. The mobile station sends first information (e.g., SID and NID) indicative of its current network location to the H-MPC. The H-MPC determines a serving mobile positioning center (S-MPC) in the visited network based on the first information. The S-MPC determines a serving position determining entity (S-PDE) in the visited network based on the first information. Depending on the selected positioning method, the H-MPC may receive an S-PDE address or a position estimate of the mobile station from the S-MPC and may forward this information to mobile station. The mobile station may communicate with the S-PDE for positioning using the S-PDE address.

Techniques to support positioning of roaming mobile stations are described. A roaming mobile station communicates with a visited network and has a data connection to a home network. The mobile station sends a request for positioning assistance to a home position determining entity (H-PDE) in the home network. The H-PDE determines that base station almanac (BSA) data applicable for the mobile station is not locally available and sends a request for location information for the mobile station to a designated network entity. This entity may be a BSA server storing BSA data for different networks or a visited PDE (V-PDE) in the visited network. The H-PDE receives location information (e.g., BSA data, assistance data, and/or a position estimate for the mobile station) from the designated network entity and provides positioning assistance to the mobile station based on the received location information.

Method and apparatus for supporting positioning of roaming mobile stations

The subject matter disclosed herein relates to obtaining position fixes using a position determination method in response to a change in an RF environment.

Growing community of inventors

Sunnyvale, CA, United States of America

Gaurav Lamba