公开(公告)号：JP2007306588A

公开(公告)日：2007-11-22

申请号：JP2007150321

申请日：2007-06-06

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

Inventor： VAYANOS ALKINOOS H ,  GAAL PETER ,  STEIN JEREMY M ,  AGASHE PARAG A ,  FERNANDEZ-CORBATON IVAN JESUS ,  SOLIMAN SAMIR S

IPC: H04Q7/34 ,  G01S1/00 ,  G01S19/05 ,  G01S19/25 ,  H04B1/707

CPC classification number: G01S19/05 ,  G01S19/256 ,  H04B2201/70715

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for shortening the time needed to fix the position of an integrated GPS/wireless terminal unit in acquiring GPS satellite signals from the GPS satellite constellation.
SOLUTION: The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于缩短固定GPS /无线终端单元在从GPS卫星星座获取GPS卫星信号的位置所需的时间的系统和方法。 解决方案：本发明包括一种缩小PN码相位搜索的方法。 也就是说，通过考虑相对于GPS时间的地理位置和时间延迟的变量，系统和方法产生窄的码相搜索范围，使得终端单元能够更快地获取和跟踪所需的GPS卫星，从而更多地 快速向请求实体提供准确的位置信息。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2010002419A

公开(公告)日：2010-01-07

申请号：JP2009161845

申请日：2009-07-08

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

Inventor： STEIN JEREMY M ,  FERNANDEZ-CORBATON IVAN ,  RICK ROLAND R ,  RISTIC BORISLAV ,  BHATIA ASHOK ,  AMERGA MESSAY

IPC: G01S1/00 ,  G01S19/11 ,  H04B1/707 ,  H04W64/00

CPC classification number: G01S19/24 ,  G01S5/0215 ,  G01S5/0221 ,  G01S19/21 ,  G01S19/31 ,  G01S19/46

Abstract: PROBLEM TO BE SOLVED: To provide a parameter estimator for estimating ≥1 parameters related to a signal through a correlation analysis using a dynamically variable integration time. SOLUTION: The parameter estimator for estimating ≥1 parameters from a correlation function derived from a signal using a dynamically variable integration time is described. The parameter estimator is employed in a subscriber station to estimate the time of arrival of ≥1 base stations or sector pilot signals in a wireless communication system. This information is utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于通过使用动态可变积分时间的相关分析估计与信号相关的≥1个参数的参数估计器。

解决方案：描述了使用动态变量积分时间从信号导出的相关函数估计≥1个参数的参数估计器。 在用户站中采用参数估计器来估计无线通信系统中≥1个基站或扇区导频信号的到达时间。 该信息用于估计用户台位置的整体高级向前链路三向（AFLT）过程。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2012013706A

公开(公告)日：2012-01-19

申请号：JP2011167372

申请日：2011-07-29

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

Inventor： ROLAND R RICK ,  STEIN JEREMY M ,  MASSEY AMERIGAS ,  IVAN FERNANDEZ-CORBATON

IPC: G01S19/22 ,  G01S5/02 ,  G01S19/19 ,  H04W64/00

CPC classification number: H04W64/00 ,  G01S5/0205 ,  G01S5/0215

Abstract: PROBLEM TO BE SOLVED: To provide a method for generating a reliability index for a parameter estimation value derived from a signal by using correlation analysis.SOLUTION: The method is started by acquiring an indication indicating that a non-visual line signal condition exists or may probably exist and/or an indication indicating that a signal condition of a plurality of routes exists or may probably exist. A reliability index for a parameter estimation value is derived in accordance with these indications. The parameter estimation value is a signal arrival time estimation value, and the reliability index is a root mean square error of the arrival time estimation values. Then, the indication indicating that the non-visual line signal condition exists or may probably exist is acquired based on a measurement value of strength of a correlation function at a peak. A strength measurement value of the correlation function at the peak is energy (E/I) in each chip which is divided by a total receiving output or energy of the correlation function at the peak.

Abstract translation: 要解决的问题：提供一种通过使用相关分析来生成从信号导出的参数估计值的可靠性指标的方法。 解决方案：通过获取指示存在非可视线路信号条件或可能存在的指示和/或指示存在多个路由的信号条件或可能存在的指示来启动该方法。 根据这些指示导出参数估计值的可靠性指标。 参数估计值是信号到达时间估计值，可靠性指标是到达时间估计值的均方根误差。 然后，基于峰值处的相关函数的强度的测量值，获取表示非视线信号条件存在或可能存在的指示。 峰值相关函数的强度测量值是分割的每个芯片中的能量（E / I 0 ） 通过在峰值处的相关函数的总接收输出或能量。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2009296635A

公开(公告)日：2009-12-17

申请号：JP2009189655

申请日：2009-08-19

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

Inventor： HALLER HAGGAI H ,  STEIN JEREMY M

IPC: H03M13/29 ,  H03M13/45

CPC classification number: H03M13/2975 ,  H03M13/29 ,  H04L1/0051

Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus that performs high-speed iterative decoding of a code obtained by two or more different convolutional coding schemes. SOLUTION: The method has processes: to decide whether the number of decoding iteration is equal to a predetermined maximum iteration number or not; to decide whether a packet storage element combined with the input of an iterative decoder is within a predetermined proportion of a storage capacity of a packet storage element or not; to decide whether the number of decoding iteration is equal to a predetermined minimum iteration number or not; to decide whether an error detection measurement is satisfactory or not regarding at least one foregoing packet, and to terminate the iterative decoding processing for the packet (1) when the number of decoding iteration is equal to a predetermined maximum iteration number, (2) when the packet storage element is within a predetermined proportion of the storage capacity of the packet storage element, or (3) when the number of decoding iteration is equal to a predetermined minimum iteration number and the error detection measurement is satisfactory regarding at least one foregoing packet. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供对由两个或多个不同卷积编码方案获得的代码进行高速迭代解码的方法和装置。 解决方案：该方法具有以下过程：确定解码次数是否等于预定最大迭代次数; 决定与迭代解码器的输入结合的分组存储单元是否在分组存储单元的存储容量的预定比例内; 以决定解码次数是否等于预定的最小迭代次数; 确定对于至少一个前述分组是否满足误差检测测量值，并且当解码次数等于预定最大迭代次数时，终止对分组（1）的迭代解码处理，（2）当 分组存储元件在分组存储元件的存储容量的预定比例内，或者（3）当解码次数等于预定的最小迭代次数时，并且对于至少一个前述分组，错误检测测量令人满意 。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：AU2002305231B2

公开(公告)日：2008-04-17

申请号：AU2002305231

申请日：2002-04-24

Applicant: QUALCOMM INC

Inventor： WEISSMAN HAIM ,  STEIN JEREMY M

IPC: H04Q1/00 ,  G01S19/11 ,  G01S19/46 ,  H04B7/26 ,  H04W64/00 ,  H04W88/08

Abstract: Techniques to determine the position of a terminal under the coverage of a repeater in a wireless communication system. In an aspect, an identification code is transmitted for each repeater and used by the terminal (or a PDE) to unambiguously identify the repeater. The identification codes for the repeaters in the system can be implemented with PN sequences at defined offsets that are specifically reserved for repeater identification. In another aspect, the identification code for each repeater is transmitted using a spread-spectrum signal designed to have minimal impact on the performance of the system and to be recoverable by the terminal in similar manner as for a forward modulated signal. In this way, no additional hardware is required for the terminal to recover the identifier signal. In one specific design, the spread spectrum identifier signal is generated in accordance with and conforms to the IS-95 CDMA standard.

公开(公告)号：AU2002215342B2

公开(公告)日：2007-06-28

申请号：AU2002215342

申请日：2001-10-11

Applicant: QUALCOMM INC

Inventor： AGASHE PARAG A ,  GAAL PETER ,  FERNANDEZ-CORBATON IVAN JESUS ,  SOLIMAN SAMIR S ,  STEIN JEREMY M ,  VAYANOS ALKINOOS H

IPC: G01S1/00 ,  G01S19/05 ,  G01S19/25 ,  H04B1/707

Abstract: A system and method for assisting an integrated GPS/wireless terminal unit in acquiring one or more GPS satellite signals from the GPS satellite constellation. The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods of the present invention generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.

公开(公告)号：HK1054632A1

公开(公告)日：2003-12-05

申请号：HK03106819

申请日：2003-09-23

Applicant: QUALCOMM INC

Inventor： ULMER ELISHA J ,  STEIN JEREMY M

IPC: G06F11/10 ,  H03M13/25 ,  H03M13/41 ,  H03M ,  H04L

Abstract: A method and apparatus for normalizing a plurality of state-metric registers in a decoder using a trellis. The method includes determining an approximate minimum of respective state-metric values stored in the plurality of state-metric registers, and subtracting the approximate minimum from the values. Determining the approximate minimum preferably includes determining the minimum of a predetermined number of most significant bits in the plurality of state-metric registers.

公开(公告)号：NO20034734D0

公开(公告)日：2003-10-23

申请号：NO20034734

申请日：2003-10-23

Applicant: QUALCOMM INC

Inventor： STEIN JEREMY M ,  WEISSMAN HAIM

IPC: H04Q1/00 ,  G01S19/11 ,  G01S19/46 ,  H04B7/26 ,  H04W64/00 ,  H04W88/08 ,  H04Q

Abstract: Techniques to determine the position of a terminal under the coverage of a repeater in a wireless communication system. In an aspect, an identification code is transmitted for each repeater and used by the terminal (or a PDE) to unambiguously identify the repeater. The identification codes for the repeaters in the system can be implemented with PN sequences at defined offsets that are specifically reserved for repeater identification. In another aspect, the identification code for each repeater is transmitted using a spread-spectrum signal designed to have minimal impact on the performance of the system and to be recoverable by the terminal in similar manner as for a forward modulated signal. In this way, no additional hardware is required for the terminal to recover the identifier signal. In one specific design, the spread spectrum identifier signal is generated in accordance with and conforms to the IS-95 CDMA standard.

公开(公告)号：DK0970566T3

公开(公告)日：2003-09-22

申请号：DK98913060

申请日：1998-03-20

Applicant: QUALCOMM INC

Inventor： STEIN JEREMY M ,  BAR-DAVID AYAL

IPC: H03M13/09 ,  H03M13/00 ,  H03M13/29 ,  H03M13/39 ,  H03M13/41 ,  H03M13/47 ,  H04L1/00

Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.

公开(公告)号：CA2465516A1

公开(公告)日：2003-05-15

申请号：CA2465516

申请日：2002-11-01

Applicant: QUALCOMM INC

Inventor： STEIN JEREMY M ,  RICK ROLAND R ,  FERNANDEZ-CORBATON IVAN ,  AMERGA MESSAY

IPC: G01S5/02 ,  G01S19/19 ,  H04W64/00 ,  G01S1/04

Abstract: A method of producing a reliability metric for a parameter estimate derived from a signal using correlation analysis is described. The method begins by obtaining an indication of whether a non line of sight signal condition is present or likely. Responsive to one or both of these indications, the metho d derives a reliability metric for the parameter estimate. In one embodiment, the parameter estimate is an estimate of time of arrival (TOA) of the signal , and the reliability metric is root mean square error (RMSE) of the time of arrival estimate. This embodiment obtains an indication of whether a non lin e of sight signal condition is present or likely based on a measure of the strength of the correlation function at the peak thereof. The measure of the strength of the correlation function at the peak thereof may be energy per chip divided by total received power (Ec/I0) or may simply be the raw energy of the correlation function at the peak. The RMSE metric which is computed i n this embodiment varies inversely with the peak strength of the correlation function.