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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
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
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公开(公告)号：BRPI0915307A2
公开(公告)日：2016-05-17
申请号：BRPI0915307
申请日：2009-06-18
Applicant: QUALCOMM INC
Inventor： BHATIA ASHOK , RISTIC BORISLAV , FARMER DOMINIC GERARD , SIMIC EMILIJA M
IPC: H03J1/00
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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
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4.发明专利
公开(公告)号：CA2726107A1
公开(公告)日：2009-12-23
申请号：CA2726107
申请日：2009-06-18
Applicant: QUALCOMM INC
Inventor： SIMIC EMILIJA M , FARMER DOMINIC GERARD , RISTIC BORISLAV , BHATIA ASHOK
IPC: H03J1/00
Abstract: A method and device for managing a reference oscillator within a wireless device is presented. The method includes selecting reference oscillator parameters associated with the lowest reference oscillator error, where the selection is based upon reference oscillator parameters derived using different technologies within a wireless device, acquiring a satellite based upon the selected reference parameters, determining the quality of the satellite-based position fix, and updating the reference oscillator parameters based upon the quality of the satellite-based position fix. The wireless device includes a wireless communications system, a satellite positioning system (SPS) receiver, a reference oscillator connected to the wireless communications system and SPS receiver, and a mobile controller connected to the reference oscillator, SPS, and wireless communications system, and a memory connected to the mobile controller, where the memory stores a reference oscillator parameter table and instructions causing the mobile controller to execute the aforementioned method.
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公开(公告)号：BR0317245A
公开(公告)日：2005-11-01
申请号：BR0317245
申请日：2003-12-11
Applicant: QUALCOMM INC
Inventor： BHATIA ASHOK , JOSHI ABHAY A , NEUFELD ARTHUR J , SALAMAN GLENN , JOHNSON PAUL K , RAHMAT ARIE , RISTIC BORISLAV , ROH MARK CHARLES
Abstract: A wireless remote unit performs SPS acquisition interleaved with receiving paging information over a wireless slotted paging channel and receiving data packets over a wireless data communication system. The remote unit tunes to a pilot channel, synchronizes to an internal clock of the wireless remote unit with a pilot signal transmitted over the pilot channel; and starts a search for SPS satellites after completing synchronization with the internal clock.
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Patent Agency Ranking6.发明专利
公开(公告)号：CA2726107C
公开(公告)日：2015-10-27
申请号：CA2726107
申请日：2009-06-18
Applicant: QUALCOMM INC
Inventor： SIMIC EMILIJA M , FARMER DOMINIC GERARD , RISTIC BORISLAV , BHATIA ASHOK
IPC: H03J1/00
Abstract: A method and device for managing a reference oscillator within a wireless device is presented. The method includes selecting refer-ence oscillator parameters associated with the lowest reference oscillator er-ror, where the selection is based upon reference oscillator parameters de-rived using different technologies within a wireless device, acquiring a satellite based upon the selected reference parameters, determining the qual-ity of the satellite-based position fix, and updating the reference oscillator parameters based upon the quality of the satellite-based position fix. The wireless device includes a wireless communications system, a satellite posi-tioning system (SPS) receiver, a reference oscillator connected to the wire-less communications system and SPS receiver, and a mobile controller con-nected to the reference oscillator, SPS, and wireless communications sys-tem, and a memory connected to the mobile controller, where the memory stores a reference oscillator parameter table and instructions causing the mobile controller to execute the aforementioned method.
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公开(公告)号：CA2726515A1
公开(公告)日：2010-01-14
申请号：CA2726515
申请日：2009-06-23
Applicant: QUALCOMM INC
Inventor： PON RAYMAN WAI , ISCHE MARC , RISTIC BORISLAV , WU JIE
Abstract: A position location system, method, and apparatus are disclosed. A wireless device receives a first signal and obtains an identifier indicative of a first location from the first signal. The first signal can be received from a cellular base station and the first identifier can be a mobile country code. The wireless device uses the identifier to determine the availability of signals from a regional satellite system at the first location. If signals from the regional satellite system are available at the first location, the wireless device retrieves information associated with one or more satellite vehicles in the regional satellite system. The information can include pseudo-random number codes and a Doppler search range corresponding to the first location. The wireless device receives a second signal and processes the second signal to obtain first satellite signal information. The wireless device determines its position at least partially based on the first satellite signal information.
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公开(公告)号：AU2003221864A1
公开(公告)日：2003-10-27
申请号：AU2003221864
申请日：2003-04-09
Applicant: QUALCOMM INC
Inventor： RISTIC BORISLAV , BHATIA ASHOK , RICK ROLAND R , STEIN JEREMY M , AMERGA MESSAY , FERNANDEZ-CORBATON IVAN JESUS
Abstract: A method and apparatus for calculating a representative measurement from multiple data measurements of signals from cellular base stations, thereby facilitating utilization of a cellular network to determine position of a mobile station even in non-line of sight and/or dynamic fading environments. A method for calculating a representative measurement includes determining a window of time, selecting data measurements within the window, and calculating a representative time of arrival responsive thereto, such as averaging all data measurements within the window. A representative RMSE estimate may be calculated. To determine a window of time all data measurements within a predetermined window from an earliest time of arrival may be selected. Alternatively the window may be determined by sliding over the data measurements. The data measurements may be stored in a database in a mobile station, and the database is updated to include each new measurement.
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公开(公告)号：CA2920309A1
公开(公告)日：2015-03-12
申请号：CA2920309
申请日：2014-09-04
Applicant: QUALCOMM INC
Abstract: A method for blindly determining positioning reference signals in a wireless communication network determines a positioning reference signal (PRS) network configuration by estimating a PRS energy from predetermined locations of each subframe of an incoming signal. Such a method may also include blindly detecting PRS parameters based on the estimated PRS energy. The PRS energy may be peak energy responses for deep searches or verifications. The PRS energy may be a signal to signal plus noise ratio for shallow searches.
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公开(公告)号：BRPI0414097A
公开(公告)日：2006-11-14
申请号：BRPI0414097
申请日：2004-05-11
Applicant: QUALCOMM INC
Inventor： RISTIC BORISLAV
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