公开(公告)号：BRPI0411911A

公开(公告)日：2006-08-08

申请号：BRPI0411911

申请日：2004-06-28

Applicant: QUALCOMM INC

Inventor： MOEGLEIN MARK ,  ROWITCH DOUGLAS N ,  RILEY WYATT ,  DELOACH JAMES D JR ,  SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S5/02 ,  G01S5/14 ,  G01S19/25 ,  G01S19/46 ,  H04W64/00 ,  H04Q7/38 ,  H04Q7/24

公开(公告)号：CA2896427A1

公开(公告)日：2005-01-13

申请号：CA2896427

申请日：2004-06-28

Applicant: QUALCOMM INC

Inventor： MOEGLEIN MARK ,  ROWITCH DOUGLAS N ,  RILEY WYATT ,  DELOACH JAMES D JR ,  SHEYNBLAT LEONID

IPC: H04W64/00 ,  G01S1/00 ,  G01S5/02 ,  G01S5/14 ,  G01S19/25 ,  G01S19/46 ,  H04W80/02 ,  H04W88/06

公开(公告)号：CA2530892A1

公开(公告)日：2005-01-13

申请号：CA2530892

申请日：2004-06-28

Applicant: QUALCOMM INC

Inventor： MOEGLEIN MARK ,  SHEYNBLAT LEONID ,  DELOACH JAMES D JR ,  ROWITCH DOUGLAS N ,  RILEY WYATT

IPC: G01S1/00 ,  G01S5/02 ,  G01S5/14 ,  G01S19/25 ,  G01S19/46 ,  H04W64/00

Abstract: 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., positi on and coverage area of the wireless access points) for the wireless networks from the collected statistical data.

公开(公告)号：CA2516224A1

公开(公告)日：2004-09-02

申请号：CA2516224

申请日：2004-02-09

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: H04W4/02 ,  H04W64/00 ,  H04Q7/38

Abstract: Techniques are disclosed for providing an indication of location service availability and the quality of available location services for a mobile station. A required location quality of service (LQoS) parameter is acquired. The required LQoS parameter may be a minimum position accuracy value, a maximum response time value, or a maximum age of position information value. An actual LQoS value is then determined. If the actual LQoS value does not satisfy the required LQoS parameter, then an indicator is provided that location services are not available for the mobile station. For example, a visual indicator may be displayed indicating that location services are not available. On the other hand, if location services are determined to be available, a relative strength measure of position accuracy is calculated and a visual indicator of the strength of the position accuracy is provided.

公开(公告)号：HK1060617A1

公开(公告)日：2004-08-13

申请号：HK04103464

申请日：2004-05-17

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S19/20 ,  G01S1/00 ,  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：CA2514749A1

公开(公告)日：2004-08-12

申请号：CA2514749

申请日：2004-01-30

Applicant: QUALCOMM INC

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

IPC: H04B17/00 ,  H04L12/56 ,  H04W4/02 ,  H04W16/18 ,  H04W24/00 ,  H04Q7/34 ,  H04Q7/36

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：CA2501268A1

公开(公告)日：2004-04-29

申请号：CA2501268

申请日：2003-10-17

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/09 ,  G01S19/12 ,  G01S19/23 ,  G01S19/34 ,  G01S19/46 ,  G01S19/48 ,  H04W64/00 ,  G01S5/14 ,  H04Q7/38

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：AU2003249023A1

公开(公告)日：2004-02-02

申请号：AU2003249023

申请日：2003-07-11

Applicant: QUALCOMM INC

Inventor： HOCKLEY GEORGE ,  SHEYNBLAT LEONID

IPC: G01S19/11 ,  G01S5/00 ,  G01S5/02 ,  G01S5/14 ,  G01S19/46 ,  G01S19/51 ,  H04B7/24

Abstract: A hybrid position determination system is disclosed. A mobile device may determine a number of pseudo ranges based on a first position determination system, such as a Global Positioning System. In instances where the position of the mobile device is underdetermined because of an insufficient number of satellite pseudo ranges, the mobile device shares position information with other devices. The other devices may include other mobile devices. A first mobile device may determine its position based on an underdetermined number of satellite pseudo ranges by determining pseudo ranges to other mobile devices. In other embodiments, the number of satellite pseudo ranges may be insufficient to generate an absolute position determination of a single mobile device. In this underdetermined condition, mobile devices may determine a common location of the group or may determine a relative positioning of members of the group.

公开(公告)号：AU2003225083A1

公开(公告)日：2003-11-10

申请号：AU2003225083

申请日：2003-04-22

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S1/02 ,  G01S19/03 ,  G01S19/34 ,  H04B7/26 ,  H04Q1/00 ,  H04W64/00 ,  H04Q7/38 ,  G01S5/14

Abstract: Techniques to determine a position estimate for a wireless terminal. An accurate position estimate for the terminal is initially obtained (e.g., based on a first (accurate) position determination sub-system). For each of one or more transmitters (e.g., base stations) in a second (less accurate) position determination sub-system, an “expected” pseudo-range is computed based on the accurate position estimate for the terminal and the base station location, a “measured” pseudo-range is also obtained, and a pseudo-range residual is then determined based on the expected pseudo-range and the measured pseudo-range. Thereafter, to determine an updated position estimate for the terminal, measured pseudo-ranges are obtained for a sufficient number of transmitters. The measured pseudo-range for each base station may be corrected based on the associated residual. The updated position estimate is then determined based on the corrected pseudo-ranges for these transmitters.

公开(公告)号：CA2483318A1

公开(公告)日：2003-11-06

申请号：CA2483318

申请日：2003-04-22

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S1/02 ,  G01S19/03 ,  G01S19/34 ,  H04B7/26 ,  H04Q1/00 ,  H04W64/00 ,  H04Q7/38 ,  G01S5/14

Abstract: Techniques to determine a position estimate for a wireless terminal. An accurate position estimate for the terminal is initially obtained (e.g., bas ed on a first (accurate) position determination sub-system). For each of one or more transmitters (e.g., base stations) in a second (less accurate) position determination sub-system, an "expected" pseudo-range is computed based on th e accurate position estimate for the terminal and the base station location, a "measured" pseudo-range is also obtained, and a pseudo-range residual is the n determined based on the expected pseudo-range and the measured pseudo-range. Thereafter, to determine an updated position estimate for the terminal, measured pseudo-ranges are obtained for a sufficient number of transmitters. The measured pseudo-range for each base station may be corrected based on th e associated residual. The updated position estimate is then determined based on the corrected pseudo-ranges for these transmitters.