Qualcomm Incorporated

Onenav, Inc.

Snaptrack Incorporated

Mark Leo Moeglein

Leonid Sheynblat

Wyatt Thomas Riley

Douglas Neal Rowitch

Zoltan F Biacs

Gengsheng Zhang

Ju-Yong Do

Arnold Jason Gum

James Douglass DeLoach, Jr

Norman Krasner

Weihua Gao

Paul W McBurney

Grant Alexander Marshall

Michael James Wengler

Paul A Conflitti

Lionel Jacques Garin

Norman Franklin Krasner

Murali Chari

Ashok Bhatia

Christopher Brunner

Mahesh Ramachandran

Arvind Ramanandan

Kin Fai Wong

Abhishek Tyagi

Nagaraj Shivaramaiah

James D Deloach

Bin Tian

Guttorm Ringstad Opshaug

Ahmad Jalali

Sai Pradeep Venkatraman

Kirk Allan Burroughs

Gregory Turetzky

Anthony Tsangaropoulos

Rajarshi Gupta

Hui Chao

Dominic Gerard Farmer

Alkinoos Hector Vayanos

Roland Reinhard Rick

Scott Thomas Smith

Marc Anthony Ische

David Harold Coleman

Daniel Holman Agre

Stephen S Carter

Mayur Nitinbhai Shah

Justin McGloin

Josephine Ammer Bolotski

Bruce Everett Wilson

Ferit Ozan Akgul

Scott Howard King

Richard John Girerd

Mahdi Maaref

Jignesh U Doshi

Sunil Patel

Leonid Sheynbiat

Zolton Blac

James Douglass DeLoach Jr

Paul Mcburney

Murali Ramaswamy Chari

Jignesh Umesh Doshi

GNSS receivers and systems within such receivers use improvements to reduce memory usage while providing sufficient processing resources to receive and acquire and track E5 band GNSS signals directly (without attempting in one embodiment to receive L1 GNSS signals). Other aspects are also described.

Modernized global navigation satellite system (GNSS) receivers and commercially viable consumer grade GNSS receivers

This disclosure describes methods, systems and machine readable media that can provide position solutions using, for example, pattern matching with GNSS signals in urban canyons. In one method, based upon an approximate location in an urban canyon and a set of 3D data about building structures in the urban canyon, an expected signal reception data can be generated for both line of sight and non-line of sight GNSS signals from GNSS satellites, or other sources of GNSS signals, at each point in a set of points in a grid (or other model) in the vicinity of the approximate location). This expected signal reception data can be matched to a received set of GNSS signals that have been received by a GNSS receiver, and the result of the matching can produce an adjustment to the approximate location that is used in the position solution of the GNSS receiver.

Matching for GNSS signals

Global navigation satellite systems and methods use L5 GNSS signals to acquire secondary code phases of those signals without using L1 GNSS signals to aid in the acquisition of secondary code phases. Various embodiments are described to perform this acquisition.

Modernized consumer grade GNSS secondary code acquisition and signal tracking

Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data.

Method and apparatus for wireless network hybrid positioning

A mobile wireless device locating method at a mobile wireless device includes: determining, based at least in part on measurements of first signals, first location information for the mobile wireless device; sending a request for transceiver information based on the first location information; receiving the transceiver information at the mobile wireless device, the transceiver information including transceiver identifiers and corresponding locations; measuring second signals from at least some of the transceivers included in the transceiver information, at least one of the second signals being from an uncooperative terrestrial base station capable of bi-directional communications and configured to prevent data and/or voice communications with the mobile wireless device; and determining second location information for the mobile wireless device using information obtained from measuring the second signals.

Local area network assisted positioning

A method for assisting in locating a position of a mobile wireless device includes: obtaining location information of an approximate location of the mobile wireless device; generating an almanac of base stations based at least in part on proximity of locations of the base stations to the approximate location of the mobile wireless device, the almanac of base stations comprising at least one cooperative terrestrial base station that can communicate with the mobile wireless device in at least one mode and at least one uncooperative terrestrial base station capable of bi-directional communications and configured to prevent data and voice communications with the mobile wireless device, the at least one uncooperative terrestrial base station being configured to acknowledge a message received from the mobile wireless device; and providing the almanac of base stations to the mobile wireless device.

A method and system for assisting mobile stations to locate a satellite use an efficient messaging format. A server computes a correction between coarse orbit data of a satellite and precise orbit data of the satellite. A coordinate system is chosen such that variation of the correction is substantially smooth over time. The server further approximates the correction with mathematical functions to reduce the number of bits necessary for transmission to a mobile station. The mobile station, upon receiving the coefficients, evaluates the mathematical functions using the coefficients and a time of applicability (e.g., the current time), converts the evaluated result to a standard coordinate system, and applies the conversion result to the coarse orbit data to obtain the precise orbit data.

Method and apparatus for position determination with extended SPS orbit information

Disclosed are systems, methods and techniques for calibrating an altimeter of a mobile device. For example, a characterized motion of a mobile device may be used to infer an altitude of the mobile device. If it is further inferred that the mobile device is in an outdoor environment, an altitude of the mobile device may be based on application of an estimated location of the mobile device to an altitude terrain map.

Opportunistic calibration of a barometer in a mobile device

Methods and systems are presented for providing a combined barometric value. In some embodiments, the method includes obtaining, at the serving fixed local transceiver, barometric values of a plurality of client fixed local transceivers, and determining a combined barometric correction value. The method further includes initiating a barometric correction value of the serving fixed local transceiver to the combined barometric correction value, and sending an indication of the barometric correction value to the plurality of client fixed local transceivers. The method further includes receiving a request for the serving fixed local transceiver barometric correction value from a target client fixed local transceiver, and sending the barometric correction value from the serving fixed local transceiver to the target client fixed local transceiver.

LAN-based barometric altimetry

Embodiments disclosed pertain to the use of user equipment (UE) for the generation of a 3D exterior envelope of a structure based on captured images and a measurement set associated with each captured image. In some embodiments, a sequence of exterior images of a structure is captured and a corresponding measurement set comprising Inertial Measurement Unit (IMU) measurements, wireless measurements (including Global Navigation Satellite (GNSS) measurements) and/or other non-wireless sensor measurements may be obtained concurrently. A closed-loop trajectory of the UE in global coordinates may be determined and a 3D structural envelope of the structure may be obtained based on the closed loop trajectory and feature points in a subset of images selected from the sequence of exterior images of the structure.

Exterior hybrid photo mapping

A method for assisting in locating a position of a mobile wireless device comprises: obtaining visible-station indications identifying base stations that are visible from the mobile wireless device, the base stations comprising at least one cooperative terrestrial base station and at least one uncooperative WiFi terrestrial base station capable of bi-directional communications and configured to prevent data and/or voice communications with the mobile wireless device; sending, to an almanac processor, an indication of an approximate location of the mobile wireless device that comprises the visible-station indications; receiving an almanac of base stations comprising at least some of the visible-station indications and location indications indicating locations of the base stations visible from the mobile wireless device that correspond to the at least some of the visible-station indications; and determining a location of the mobile wireless device using the location indications.

A system and method of locating a position of a wireless device in range of one or more base stations. Three signals are received that each contain a unique identifier for a base station. An estimate of the distance between the wireless device and each base station is performed. Previously determined locations for each base station are referenced. At least one of the three base stations is capable of communication to remote locations and unavailable to the wireless device for communication to remote locations.

Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data.

Wireless network hybrid positioning

Growing community of inventors

Ashland, OR, United States of America

Mark Leo Moeglein