公开(公告)号：CA2768923C

公开(公告)日：2014-10-14

申请号：CA2768923

申请日：2007-08-23

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI ,  FARMER DOMINIC GERARD

IPC: G01S19/06 ,  G01S19/37 ,  G01S19/46

Abstract: Systems, apparatuses, and/or methods for resolving ambiguities associated with signals received from space vehicles (SVs) in a satellite navigation system. For example, certain methods include receiving a first SV signal from a first satellite positioning system (SPS), and reducing a bit edge ambiguity of a data signal modulating a second SV signal received from a second SPS based, at least in part, on information in the received first SV signal.

公开(公告)号：BRPI0716732A2

公开(公告)日：2013-09-17

申请号：BRPI0716732

申请日：2007-09-10

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S1/00 ,  G01S19/05 ,  G01S19/06 ,  G01S19/28 ,  G01S19/29 ,  G01S19/30 ,  G01S19/33 ,  G01S19/46

Abstract: The subject matter disclosed herein relates to a system and method for acquiring signal received from space vehicles (SVs) in a satellite navigation system. In one example, although claimed subject matter is not so limited, information processed in acquiring a signal from a first SV may be used in acquiring a signal from a second SV.

公开(公告)号：CA2715966C

公开(公告)日：2013-09-03

申请号：CA2715966

申请日：2009-02-20

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S1/00

Abstract: The subject matter disclosed herein relates to detecting and/or estimating multipath signals. For an example, a signal comprising at least one binary offset carrier (BOC) modulation signal is received. The BOC modulation signal is modulated with a pseudorandom noise sequence comprising a plurality of chips, wherein each of said chips has a set interval. In another aspect, the received signal is correlated with portions of the plurality of chips to provide a power signal. The portions of chips are less than the set interval. In a further aspect, presence of a multi-path signal in the received signal is detected. The detection of multipath is based, at least in part, on one or more characteristics of the power signal.

公开(公告)号：AT489641T

公开(公告)日：2010-12-15

申请号：AT08005494

申请日：2008-03-25

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S1/00 ,  G01S19/07 ,  G01S19/11 ,  G01S19/12 ,  G01S19/31

Abstract: The subject matter disclosed herein relates to suppressing the effects of multipath signals. For an example, a signal comprising at least one binary offset carrier (BOC) modulation signal is received. The BOC modulation signal is modulated with a pseudorandom noise sequence comprising a plurality of chips, wherein each of the chips has a set interval. The received signal is correlated with portions of the plurality of chips to provide a power signal and to remove at least a portion of a multipath component in the received signal from the power signal. The portions of the chips are less than the set interval.

公开(公告)号：AU2019223716A1

公开(公告)日：2020-08-13

申请号：AU2019223716

申请日：2019-01-02

Applicant: QUALCOMM INC

Inventor： OPSHAUG GUTTORM RINGSTAD ,  EDGE STEPHEN WILLIAM ,  WU JIE ,  PON RAYMAN WAI ,  BHUSHAN NAGA ,  FISCHER SVEN

IPC: H04L5/00

Abstract: A reference signal may provide for enhanced bandwidth utilization to enable highly accurate position determination with relatively low bandwidth. For a given allocated bandwidth, a reference signal may use of only a portion of the allocated bandwidth by using plurality of sub-bands. In some cases, the sub-bands may be near the edges of the allocated band to maximize Gabor bandwidth.

公开(公告)号：DK2366113T3

公开(公告)日：2020-02-24

申请号：DK09752707

申请日：2009-11-17

Applicant: QUALCOMM INC

Inventor： FARMER DOMINIC GERARD ,  LIN LE-HONG ,  PON RAYMAN WAI

IPC: G01S1/00

公开(公告)号：BRPI0915097A2

公开(公告)日：2015-10-27

申请号：BRPI0915097

申请日：2009-06-23

Applicant: QUALCOMM INC

Inventor： RISTIC BORISLAV ,  WU JIE ,  ISCHE MARC ,  PON RAYMAN WAI

IPC: G01S1/00 ,  G01S5/14

公开(公告)号：CA2718663C

公开(公告)日：2014-01-21

申请号：CA2718663

申请日：2009-04-07

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S1/00 ,  G01S19/05

Abstract: The subject matter disclosed herein relates to a system and method for obtaining time references for signals received from transmitters in a satellite and/or terrestrial navigation system. A first time reference associated with a first signal received at a receiver from a first transmitter is obtained. A second time reference associated with a second signal from a second transmitter is obtained based on the first time reference and on an estimated difference between a first range to the first transmitter from the receiver and a second range to the second transmitter from the receiver.

公开(公告)号：DE602008003646D1

公开(公告)日：2011-01-05

申请号：DE602008003646

申请日：2008-03-25

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S1/00 ,  G01S19/07 ,  G01S19/11 ,  G01S19/12 ,  G01S19/31

公开(公告)号：CA2716078A1

公开(公告)日：2009-09-11

申请号：CA2716078

申请日：2008-12-22

Applicant: QUALCOMM INC

Inventor： PON RAYMAN WAI

IPC: G01S5/14 ,  G01S1/00

Abstract: Methods and apparatus for improving position location performance, especially in weak coverage areas, are described herein. A SPS receiver is able to solve for position location in situations where at least two satellite signals can be received but only one time stamp can be successfully demodulated. The receiver can utilize the successfully decoded time reference to determine a time associated with bit edge transitions for signals from that satellite. The receiver utilizes the bit edge transition with the known time to set the time for at least one bit edge transition for signals from other satellites for which the time stamp is not demodulated. The receiver sets the time hypothesis to bit edge transitions occurring within a predetermined window including the bit edge transition with the known time. A position can be determined based on the time hypothesis. The time hypothesis and window placement can be modified following invalid position solutions.