公开(公告)号：JP2013190431A

公开(公告)日：2013-09-26

申请号：JP2013076906

申请日：2013-04-02

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

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

IPC: G01S19/06 ,  G01S19/33 ,  G01S19/25 ,  G01S19/32 ,  G01S19/35 ,  G01S19/46

CPC classification number: G01S19/36 ,  G01S19/25 ,  G01S19/32 ,  G01S19/33

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for processing navigation signals received from a plurality of global navigation satellite systems (GNSS') transmitted at different carrier frequencies.SOLUTION: A mobile station comprises: a first receiver adapted to receive acquisition assistance (AA) information over terrestrial wireless links; and a second receiver adapted to receive two or more satellite positioning system (SPS) signals at two or more associated carrier frequencies. The second receiver comprises: a circuit to downconvert the two or more received SPS signals in a single receiver path according to a common local oscillator frequency; and a baseband processor to determine pseudorange measurements associated with the received SPS signals on the basis at least partly of the downconverted signals and the AA information.

Abstract translation: 要解决的问题：提供一种用于处理从以不同载波频率发送的多个全球导航卫星系统（GNSS））接收的导航信号的系统和方法。解决方案：移动台包括：第一接收机，适于接收获取辅助（ AA）地面无线链路信息; 以及适于在两个或更多个相关联的载波频率处接收两个或更多个卫星定位系统（SPS）信号的第二接收机。 第二接收机包括：根据公共本地振荡器频率在单个接收器路径中对两个或更多个接收的SPS信号进行下变频的电路; 以及基带处理器，用于至少部分地基于下变频信号和AA信息来确定与所接收的SPS信号相关联的伪距测量。

公开(公告)号：MXPA05003922A

公开(公告)日：2005-09-30

申请号：MXPA05003922

申请日：2003-10-17

Applicant: QUALCOMM INC

Inventor： DOUGLAS ROWITCH

IPC: G01S19/25 ,  G01S1/00 ,  G01S11/06 ,  G01S11/10 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  H04B1/707

Abstract: Un metodo de y sistema para calcular un parametro de maximos o minimos locales de una funcion de correlacion derivada de una senal recibida. Se determina un maximo o minimo local, interpolado. Despues se deriva una compensacion de interpolacion, que comprende una desviacion entre las ubicaciones de los maximos o minimos locales interpolados y muestreados de la funcion. Se deriva un calculo del parametro de la compensacion de interpolacion.

公开(公告)号：HK1061277A1

公开(公告)日：2004-09-10

申请号：HK04104297

申请日：2004-06-15

Applicant: QUALCOMM INC

Inventor： MESSAY AMERGA ,  CHRISTOPHER PATRICK ,  ROLAND RICK ,  DOUGLAS ROWITCH ,  SAED YOUNIS

IPC: G01S1/00 ,  G01S19/25 ,  H04B20060101 ,  H04B7/26 ,  H04W64/00

Abstract: Techniques to detect whether or not a remote terminal is under the coverage of a repeater within a wireless communication network, which may be based on (1) a list of base stations expected to be received while under the repeater's coverage, (2) the characterized environment of the repeater, and/or (3) the propagation delays for a transmission received at the remote terminal. Additional ambiguity resulting from being under a repeater's coverage may also be accounted for and/or compensated by (1) discarding time measurements from repeated base stations, (2) adjusting the processing for position estimation to account for the additional ambiguity due to the repeater, (3) computing a series of position estimates based on multiple transmissions received from the same originating base station and selecting the best estimate, and/or (4) computing a series of position estimates based on multiple transmissions from multiple originating base stations and selecting the best estimate.