公开(公告)号：HK1139462A1

公开(公告)日：2010-09-17

申请号：HK10105455

申请日：2010-06-02

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/09 ,  G01S19/12 ,  G01S19/23 ,  G01S19/34 ,  G01S19/46 ,  G01S19/48 ,  H04W20090101 ,  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：CA2833072A1

公开(公告)日：2009-10-22

申请号：CA2833072

申请日：2009-04-15

Applicant: QUALCOMM INC

Inventor： BIACS ZOLTAN F ,  SHEYNBLAT LEONID ,  GUM ARNOLD JASON

IPC: G01S19/42

Abstract: A method and system for a mobile station to determine its position (or velocity) and time using a hybrid combination of satellite orbit data. In one aspect, the mobile station combines predicted orbit data from one satellite and real-time orbit data from another satellite in the determination of a fix. The combination can be made to the satellites in the same or different satellite systems. The mobile station can use the real-time orbit data of a satellite at one time period and the predicted orbit data of the same satellite at another time period. In another aspect, the mobile station can use the real-time orbit data to correct the clock bias in the predicted orbit data. The correction to the clock bias can be made to the same satellite that provides the real-time orbit data, or to a different satellite in the same or in another satellite system.

公开(公告)号：CA2718988A1

公开(公告)日：2009-10-22

申请号：CA2718988

申请日：2009-04-15

Applicant: QUALCOMM INC

Inventor： BIACS ZOLTAN F ,  SHEYNBLAT LEONID ,  GUM ARNOLD JASON

IPC: G01S1/00

Abstract: A method and system for a mobile station to determine its position (or velocity) and time using a hybrid combination of satellite orbit data. In one aspect, the mobile station combines predicted orbit data from one satellite and real-time orbit data from another satellite in the determination of a fix. The combination can be made to the satellites in the same or different satellite systems. The mobile station can use the real-time orbit data of a satellite at one time period and the predicted orbit data of the same satellite at another time period. In another aspect, the mobile station can use the real-time orbit data to correct the clock bias in the predicted orbit data. The correction to the clock bias can be made to the same satellite that provides the real-time orbit data, or to a different satellite in the same or in another satellite system.

公开(公告)号：AU2003301350B2

公开(公告)日：2009-09-03

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：CA2710465A1

公开(公告)日：2009-07-09

申请号：CA2710465

申请日：2008-12-18

Applicant: QUALCOMM INC

Inventor： ZHAO LIANG ,  KOHLMANN MICHAEL ,  CONFLITTI PAUL A ,  BROCKENBROUGH ROGER ,  CONROY CORMAC S ,  SHEYNBLAT LEONID ,  ROWITCH DOUGLAS

IPC: G01S1/00 ,  G01S19/06 ,  G01S19/46

Abstract: The subject matter disclosed herein relates to a system and method for processing navigation signals received from multiple global navigation satellite systems (GNSS'). In a particular implementation, signals received from multiple GNSS' may be processed in a single receiver channel.

公开(公告)号：DE60131988T2

公开(公告)日：2008-12-11

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：AT409395T

公开(公告)日：2008-10-15

申请号：AT04709531

申请日：2004-02-09

Applicant: QUALCOMM INC

Inventor： SHEYNBLAT LEONID

IPC: H04W4/02 ,  H04W64/00

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：HK1088764A1

公开(公告)日：2006-11-10

申请号：HK06109042

申请日：2006-08-15

Applicant: QUALCOMM INC

Inventor： WANGJUN ,  SHEYNBLAT LEONID ,  AGASHE PARAG ,  GELLENS RANDALL C ,  HSU RAYMOND T

IPC: H04W64/00

Abstract: A system, method and apparatus for providing location services whereby location determination and location disclosure are treated as separate and independent processes. Location determination may be performed (as necessary) via a first set of network entities to obtain location information for a mobile station. The location information may be cached for subsequent disclosure to any number of applications. Location disclosure may be performed (when requested) via a second set of network entities to provide the location information. Location determination may utilize a first security procedure for authentication and authorization and to obtain a first session key used for location determination. Location disclosure may utilize a second security procedure for authentication and authorization and to obtain a second session key used for location disclosure. For a roaming mobile station, location determination may be performed via a serving network and location disclosure may be performed via a home network.

公开(公告)号：BRPI0408017A

公开(公告)日：2006-04-11

申请号：BRPI0408017

申请日：2004-03-04

Applicant: QUALCOMM INC

Inventor： WANG JUN ,  SHEYNBLAT LEONID ,  AGASHE PARAG ,  GELLENS RANDALL C ,  HSU RAYMOND T

IPC: H04W64/00 ,  H04Q7/22

Abstract: A system, method and apparatus for providing location services whereby location determination and location disclosure are treated as separate and independent processes. Location determination may be performed (as necessary) via a first set of network entities to obtain location information for a mobile station. The location information may be cached for subsequent disclosure to any number of applications. Location disclosure may be performed (when requested) via a second set of network entities to provide the location information. Location determination may utilize a first security procedure for authentication and authorization and to obtain a first session key used for location determination. Location disclosure may utilize a second security procedure for authentication and authorization and to obtain a second session key used for location disclosure. For a roaming mobile station, location determination may be performed via a serving network and location disclosure may be performed via a home network.

公开(公告)号：BRPI0407559A

公开(公告)日：2006-02-14

申请号：BRPI0407559

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.