公开(公告)号：WO2008019172A2

公开(公告)日：2008-02-14

申请号：PCT/US2007/063428

申请日：2007-03-06

Applicant: QUALCOMM INCORPORATED ,  RILEY, Wyatt, Thomas ,  BLACKMER, John, R. ,  FARMER, Dominic, Gerard ,  PON, Rayman, Wai

Inventor： RILEY, Wyatt, Thomas ,  BLACKMER, John, R. ,  FARMER, Dominic, Gerard ,  PON, Rayman, Wai

IPC: G01S5/14

CPC classification number: G01S19/35 ,  G01S19/25 ,  G01S19/42

Abstract: A mobile Communications device uses a method for determining position that involves a positioning filter, such as a Kalman filter, which is initialized with measurements from reference stations such as satellite vehicles and/or base stations which may be acquired during different epochs. Accordingly, the positioning filter may be used for position estimation without the need to first acquire at least three different signals during the same measurement epoch.

Abstract translation: 移动通信设备使用一种用于确定位置的方法，该方法包括诸如卡尔曼滤波器的定位滤波器，该滤波器使用可以在不同时期期间获取的诸如卫星车辆和/或基站的参考站进行测量来初始化。 因此，定位滤波器可以用于位置估计，而不需要在相同的测量时段期间首先获取至少三个不同的信号。

公开(公告)号：WO2010068911A1

公开(公告)日：2010-06-17

申请号：PCT/US2009/067738

申请日：2009-12-11

Applicant: QUALCOMM Incorporated ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S1/00

CPC classification number: G01S19/22

Abstract: Methods and apparatus are provided for use in devices adapted to perform waveform correlation result processing. An exemplary method may include accessing a plurality of collected measurement values stored in memory, establishing at least one combined measurement value based, at least in part, on at least two of the collected measurement values, and identifying at least one wireless signal within a reference waveform based, at least in part, on at least the combined measurement value. The method may also include establishing the at least one correlation result for at least one of the plurality of waveforms by correlating the at least one of the plurality of waveforms with the reference waveform.

Abstract translation: 方法和装置被提供用于适于执行波形相关结果处理的装置。 示例性方法可以包括访问存储在存储器中的多个收集的测量值，至少部分地基于所收集的测量值中的至少两个，建立至少一个组合测量值，并且识别参考中的至少一个无线信号 至少部分地基于至少组合的测量值的波形。 该方法还可以包括通过将多个波形中的至少一个与参考波形相关联来建立多个波形中的至少一个波形的至少一个相关结果。

公开(公告)号：WO2009110948A1

公开(公告)日：2009-09-11

申请号：PCT/US2008/087937

申请日：2008-12-22

Applicant: QUALCOMM INCORPORATED ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S5/14 ,  G01S1/00

CPC classification number: G01S19/42 ,  G01S19/24

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.

Abstract translation: 本文描述了用于改善位置定位性能的方法和装置，特别是在弱覆盖区域中。 在可以接收至少两个卫星信号但只有一个时间戳可以成功解调的情况下，SPS接收机能够解决位置定位。 接收机可以利用成功解码的时间参考来确定与来自该卫星的信号的位边沿转换相关联的时间。 接收机利用已知时间的比特边缘转换来设置来自其他时间戳未被解调的其他卫星的信号的至少一个比特边缘转换的时间。 接收机将时间假设设置为在包括具有已知时间的位边沿转换的预定窗口内发生的位边沿转换。 可以根据时间假设确定一个位置。 时间假设和窗口布局可以在无效位置解决方案之后进行修改。

公开(公告)号：WO2009105728A1

公开(公告)日：2009-08-27

申请号：PCT/US2009/034796

申请日：2009-02-20

Applicant: QUALCOMM INCORPORATED ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S1/00

CPC classification number: G01S19/22 ,  G01S19/30

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.

Abstract translation: 本文公开的主题涉及检测和/或估计多径信号。 作为示例，接收包括至少一个二进制偏移载波（BOC）调制信号的信号。 BOC调制信号由包含多个码片的伪随机噪声序列调制，其中每个所述码片具有设定间隔。 在另一方面，接收信号与多个芯片的部分相关以提供功率信号。 芯片的部分小于设定的间隔。 在另一方面，检测接收信号中的多径信号的存在。 多路径的检测至少部分地基于功率信号的一个或多个特性。

公开(公告)号：WO2008019172A3

公开(公告)日：2008-06-19

申请号：PCT/US2007063428

申请日：2007-03-06

Applicant: QUALCOMM INC ,  RILEY WYATT THOMAS ,  BLACKMER JOHN R ,  FARMER DOMINIC GERARD ,  PON RAYMAN WAI

Inventor： RILEY WYATT THOMAS ,  BLACKMER JOHN R ,  FARMER DOMINIC GERARD ,  PON RAYMAN WAI

IPC: G01S19/04 ,  G01S1/00 ,  G01S19/10 ,  G01S19/25 ,  G01S19/44 ,  G01S19/46

CPC classification number: G01S19/35 ,  G01S19/25 ,  G01S19/42

Abstract: A mobile Communications device uses a method for determining position that involves a positioning filter, such as a Kalman filter, which is initialized with measurements from reference stations such as satellite vehicles and/or base stations which may be acquired during different epochs. Accordingly, the positioning filter may be used for position estimation without the need to first acquire at least three different signals during the same measurement epoch.

Abstract translation: 移动通信设备使用用于确定位置的方法，该位置涉及诸如卡尔曼滤波器之类的定位滤波器，该定位滤波器利用来自参考站（诸如卫星车辆和/或在不同时期期间可获取的基站）的测量来初始化。 因此，定位滤波器可以用于位置估计，而不需要在相同的测量历元期间首先获取至少三个不同的信号。

公开(公告)号：WO2012082794A1

公开(公告)日：2012-06-21

申请号：PCT/US2011/064732

申请日：2011-12-13

Applicant: QUALCOMM INCORPORATED ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S19/28 ,  G01S19/25

CPC classification number: G01S19/28 ,  G01S19/258

Abstract: Methods, systems, computer readable media, and mobile devices for searching for global navigation satellite system (GNSS) signals include acquiring satellite position location signals from a first SV in the GNSS from an Earth location. From an SV position list a determination is made whether any SVs in the GNSS are not-in-view of the first SV. Satellite position location signals are searched from other SVs in the GNSS, except from any SVs that have been determined not-in-view of the first SV. According to one aspect, ellipsoidal, additional, and extrapolated elimination regions are created to expand the SVs that can be eliminated as being not-in-view.

Abstract translation: 用于搜索全球导航卫星系统（GNSS）信号的方法，系统，计算机可读介质和移动装置包括从地球位置从GNSS中的第一SV获取卫星位置信号。 从SV位置列表确定GNSS中的任何SV是否不在第一SV中。 卫星位置信号从GNSS中的其他SV搜索，除了已经被确定为不是第一SV的视图之外。 根据一个方面，创建椭圆形，附加和外推消除区域以扩展可被消除的SV，因为它们不在视野中。

公开(公告)号：WO2010151667A1

公开(公告)日：2010-12-29

申请号：PCT/US2010/039819

申请日：2010-06-24

Applicant: QUALCOMM INCORPORATED ,  CHEN, Shiou-Hung ,  PON, Rayman Wai ,  SIMIC, Emilija M.

Inventor： CHEN, Shiou-Hung ,  PON, Rayman Wai ,  SIMIC, Emilija M.

IPC: G01S19/22

CPC classification number: G01S19/22

Abstract: Methods and apparatus are provided for use in devices operatively enabled to perform waveform correlation result processing.

Abstract translation: 提供的方法和装置用于可操作地使能执行波形相关结果处理的装置。

公开(公告)号：WO2010065250A1

公开(公告)日：2010-06-10

申请号：PCT/US2009/063979

申请日：2009-11-11

Applicant: QUALCOMM Incorporated ,  CHEN, Shiou-Hung ,  MARSHALL, Grant Alexander ,  SIMIC, Emilija M. ,  ROWITCH, Douglas Neal ,  PON, Rayman Wai

Inventor： CHEN, Shiou-Hung ,  MARSHALL, Grant Alexander ,  SIMIC, Emilija M. ,  ROWITCH, Douglas Neal ,  PON, Rayman Wai

IPC: H04B1/707 ,  G01S1/00

CPC classification number: H04B1/7113 ,  G01S19/22 ,  H04B2201/70715

Abstract: An apparatus and method for short multipath mitigation. In one aspect the method comprises subtracting a first stronger path from a correlation function to obtain a first residual signal, wherein one component of the first residual signal is a weaker path; applying reconstruction on the first residual signal to obtain a first reconstructed weaker path; subtracting the first reconstructed weaker path from the correlation function to obtain a second residual signal; and applying reconstruction on the second residual signal to obtain a second stronger path. In one aspect, the apparatus includes an antenna for receiving a composite receive RF signal, a receiver front-end for converting the composite receive RF signal into a composite receive digital signal; and a processor for performing signal correlation on the composite receive digital signal to obtain a correlation function and for processing the correlation function to obtain a desired signal. In one aspect, the short multipath is identified by computing a Left Edge Height Ratio Indicator (LEHRI).

Abstract translation: 一种用于短多径减轻的装置和方法。 在一个方面，该方法包括从相关函数中减去第一较强路径以获得第一残差信号，其中第一残差信号的一个分量是较弱的路径; 对第一残差信号应用重建以获得第一重建较弱路径; 从所述相关函数中减去所述第一重建较弱路径以获得第二残差信号; 以及对所述第二残差信号应用重建以获得第二较强路径。 一方面，该装置包括用于接收复合接收RF信号的天线，用于将复合接收RF信号转换成复合接收数字信号的接收机前端; 以及处理器，用于对复合接收数字信号执行信号相关，以获得相关函数，并用于处理相关函数以获得期望的信号。 在一个方面，通过计算左边缘高度比指示符（LEHRI）来识别短多径。

公开(公告)号：WO2009126610A1

公开(公告)日：2009-10-15

申请号：PCT/US2009/039750

申请日：2009-04-07

Applicant: QUALCOMM INCORPORATED ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S1/00

CPC classification number: G01S19/246 ,  G01S19/13

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 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 reveiver and a second range to the second transmitter from the receiver.

Abstract translation: 本文公开的主题涉及一种用于获得从卫星和/或地面导航系统中的发射机接收的信号的时间基准的系统和方法。 获得与在接收机处接收的第一信号相关联的第一次参考。 基于第一时间参考和来自接收器的第一范围与第一发射机之间的估计差和从接收器到第二发射机的第二范围，获得与来自第二发射机的第二信号相关联的第二时间参考。

公开(公告)号：WO2009064812A1

公开(公告)日：2009-05-22

申请号：PCT/US2008/083278

申请日：2008-11-12

Applicant: QUALCOMM Incorporated ,  PON, Rayman Wai

Inventor： PON, Rayman Wai

IPC: G01S1/00

CPC classification number: G01S19/30 ,  G01S19/22

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.

Abstract translation: 本文公开的主题涉及抑制多径信号的影响。 作为示例，接收包括至少一个二进制偏移载波（BOC）调制信号的信号。 BOC调制信号由包括多个芯片的伪随机噪声序列调制，其中每个芯片具有设定间隔。 所接收的信号与多个芯片的部分相关以提供功率信号，并且从功率信号中去除接收信号中的多径分量的至少一部分。 芯片的部分小于设定的间隔。