公开(公告)号：AU2003301350C1

公开(公告)日：2010-02-04

申请号：AU2003301350

申请日：2003-10-17

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID ,  RILEY WYATT THOMAS

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/09 ,  G01S19/12 ,  G01S19/23 ,  G01S19/34 ,  G01S19/46 ,  G01S19/48 ,  H04W64/00

Abstract: A method and apparatus to utilize a set of measurements (either partial or compete) to improve the accuracy of an initial position estimate for a wireless terminal. The initial position estimate for the terminal is first obtained (e.g., based on a cell-ID or an enhanced cell-ID solution). Measurements are obtained for the terminal. The initial position estimate is then updated with the measurements to obtain a revised position estimate for the terminal. The updating may be performed by (1) deriving a measurement vector based on the initial position estimate and the measurements, (2) forming an observation matrix for the measurements, (3) determining a matrix of weights, (4) deriving a correction vector based on the measurement vector, the observation matrix, and the weight matrix, and (5) updating the initial position estimate with the correction vector.

公开(公告)号：AU2004208437C1

公开(公告)日：2010-01-21

申请号：AU2004208437

申请日：2004-01-30

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID ,  AGRE DANIEL H ,  MOEGLEIN MARK ,  RILEY WYATT ,  DELOACH JAMES D JR ,  CARTER STEPHEN S

IPC: H04B17/00 ,  H04W4/02 ,  H04L12/56 ,  H04W16/18 ,  H04W24/00

Abstract: A method of obtaining data useful for one or more network applications is described. The method is performed responsive to a triggering event, such as a dropped call, a position fix, or even expiration of a timer. A position estimate for a subscriber station is obtained responsive to the event. A record is then formed associating the position estimate for the subscriber station with an identifier of the triggering event and/or data measured or obtained responsive to the event, such as the strength of one or more pilots visible to the subscriber station. The record is either stored locally or transmitted to a remote location. In one implementation, the record is transmitted to a remote location, and stored in a database holding like records relating to other subscriber stations.

公开(公告)号：AU2005333140C1

公开(公告)日：2010-01-07

申请号：AU2005333140

申请日：2005-06-20

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID ,  WRAPPE THOMAS

IPC: H04W24/02 ,  G01S5/00 ,  G01S5/02 ,  G01S5/06 ,  G01S19/09 ,  G01S19/25 ,  G01S19/46 ,  G01S19/48 ,  H04W12/02 ,  H04W24/00

Abstract: A method and apparatus for determining a position of a base station in a wireless communication network that includes a mobile station in communication with base stations. A BTS calibration server is networked with the base stations. A BTS calibration program is programmed into a group of mobile stations that have position location capabilities. Using the BTS calibration program, calibration information may be requested by the BTS calibration server, or a session may be initiated by the mobile station. The BTS calibration program also provides privacy features that allow user of the mobile station to prevent it from being used for base station location. If authorized, the BTS calibration program determines the position of the mobile station, and provides calibration information, such as position and base station phase measurements, to the server. The calibration information may be used to calibrate the base station almanac.

公开(公告)号：DE60327642D1

公开(公告)日：2009-06-25

申请号：DE60327642

申请日：2003-10-17

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID ,  RILEY WYATT T

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/09 ,  G01S19/12 ,  G01S19/23 ,  G01S19/34 ,  G01S19/46 ,  G01S19/48 ,  H04W64/00 ,  H04W88/02

Abstract: A method and apparatus to utilize a set of measurements (either partial or compete) to improve the accuracy of an initial position estimate for a wireless terminal. The initial position estimate for the terminal is first obtained (e.g., based on a cell-ID or an enhanced cell-ID solution). Measurements are obtained for the terminal. The initial position estimate is then updated with the measurements to obtain a revised position estimate for the terminal. The updating may be performed by (1) deriving a measurement vector based on the initial position estimate and the measurements, (2) forming an observation matrix for the measurements, (3) determining a matrix of weights, (4) deriving a correction vector based on the measurement vector, the observation matrix, and the weight matrix, and (5) updating the initial position estimate with the correction vector.

公开(公告)号：DE60131988D1

公开(公告)日：2008-01-31

申请号：DE60131988

申请日：2001-08-24

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S19/20 ,  G01S5/00 ,  G01S19/06 ,  G01S19/09 ,  G01S19/21 ,  G01S19/28 ,  G01S19/38 ,  G01S19/42

Abstract: Methods and apparatuses for removing the effects of cross-correlation on a satellite positioning system's calculation of position are disclosed. The method includes receiving the SPS signals from in view SPS satellites and determining whether a first measurement, corresponding to a first SPS satellite which has been indicated to be a healthy satellite, is to be removed from a set of measurements to be used to solve for a position of a mobile SPS receiver. Determining includes testing the first measurement for a cross-correlation resulting from signals from the first SPS satellite and signals from a second SPS satellite, where the first measurement is derived from the SPS signals. In one embodiment, the signals from the first SPS satellite may be weaker than the signals from the second SPS satellite, which has been indicated to be an unhealthy satellite.

公开(公告)号：AT381716T

公开(公告)日：2008-01-15

申请号：AT01968106

申请日：2001-08-24

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S19/20 ,  G01S5/00 ,  G01S19/06 ,  G01S19/09 ,  G01S19/21 ,  G01S19/28 ,  G01S19/38 ,  G01S19/42

Abstract: Methods and apparatuses for removing the effects of cross-correlation on a satellite positioning system's calculation of position are disclosed. The method includes receiving the SPS signals from in view SPS satellites and determining whether a first measurement, corresponding to a first SPS satellite which has been indicated to be a healthy satellite, is to be removed from a set of measurements to be used to solve for a position of a mobile SPS receiver. Determining includes testing the first measurement for a cross-correlation resulting from signals from the first SPS satellite and signals from a second SPS satellite, where the first measurement is derived from the SPS signals. In one embodiment, the signals from the first SPS satellite may be weaker than the signals from the second SPS satellite, which has been indicated to be an unhealthy satellite.

公开(公告)号：CA2635353A1

公开(公告)日：2007-07-19

申请号：CA2635353

申请日：2006-07-05

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S19/06 ,  G01S5/02 ,  H04L12/28 ,  H04W48/16 ,  H04W48/18 ,  H04W88/06

公开(公告)号：CA2598019A1

公开(公告)日：2006-08-24

申请号：CA2598019

申请日：2006-02-16

Applicant: QUALCOMM INC

Inventor： MIMRAN ARIK ,  LEE CHONG U ,  HOLCMAN ALEJANDRO R ,  BENDER PAUL E ,  PADOVANI ROBERTO ,  SHEYNBLAT LEONID ,  WOLF JACK KEIL ,  KHAZAKA SAMIR K ,  REZAIIFAR RAMIN

IPC: H04B7/005 ,  H04B17/00 ,  H04L25/00 ,  H04W52/44

Abstract: Operating a communication device in a half-duplex mode using only overhead channels; and substantially free running a timing reference obtained during reception to allow a timing reference value to drift during transmission.

公开(公告)号：BRPI0409676A

公开(公告)日：2006-04-18

申请号：BRPI0409676

申请日：2004-04-02

Applicant: QUALCOMM INC

Inventor： GAAL PETER ,  SHEYNBLAT LEONID ,  PATRICK CHRISTOPHER ,  RILEY THOMAS WYATT

IPC: G01S19/03 ,  G01S1/00 ,  G01S19/09 ,  G01S19/12 ,  G01S19/14 ,  G01S19/46 ,  H04W64/00 ,  G01S5/14

Abstract: Signal acquisition assistance data is obtained for receiving devices such as wireless position assisted location devices seeking signals from any source, such as satellite vehicles and base stations. The data may be obtained from previously acquired data, based upon evaluation of changes in parameters such as time and location that may jeopardize validity. In some cases the data may be adjusted for the changes in parameters. Refined data may be calculated by a receiver using partial measurements of signal sets, particularly if the acquisition assistance data provided by a remote entity includes more distinct parameters than have typically been provided.; New data need not be obtained until the validity of previous data expires due to limitations upon temporal extrapolation using Doppler coefficients, unless mobile station movement that cannot be compensated is detected, and jeopardizes validity of the previous data.

公开(公告)号：AU2005282399A1

公开(公告)日：2006-03-16

申请号：AU2005282399

申请日：2005-09-07

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S5/00 ,  G01S5/02 ,  G01S19/25 ,  H04W64/00

Abstract: 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.