-
公开(公告)号:AU2002357845A8
公开(公告)日:2003-06-30
申请号:AU2002357845
申请日:2002-12-12
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY , RISTIC BORISLAV , AMERGA MESSAY , RICK ROLAND R , FERNANDEZ-CORBATON IVAN , BHATIA ASHOK
-
公开(公告)号:CA2470050A1
公开(公告)日:2003-06-26
申请号:CA2470050
申请日:2002-12-12
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY , RICK ROLAND R , AMERGA MESSAY , RISTIC BORISLAV , BHATIA ASHOK , FERNANDEZ-CORBATON IVAN
Abstract: A position determination system and apparatus for utilizing a network of cellular base stations to determine position of a mobile station includes taking a plurality of statistically independent data measurements of the pil ot signals from the base stations. Each of the data measurements includes an earliest time of arrival, providing multiple independent measurements for ea ch of the pilot signals. For each cellular base station, a representative measurement is calculated responsive to the independent measurements, which is used to determine position of the mobile station using an AFLT algorithm and/or in conjunction with a GPS algorithm. In some embodiments, the data measurements for each pilot signal further include an RMSE estimate and time of measurement for each time of arrival, and an energy measurement for all resolvable paths. If the mobile station comprises a cell phone, a cell searc h list and a GPS search list may be provided by a cell base station.
-
公开(公告)号:CA2464930A1
公开(公告)日:2003-05-08
申请号:CA2464930
申请日:2002-10-29
Applicant: QUALCOMM INC
Inventor: BHATIA ASHOK , RISTIC BORISLAV , FERNANDEZ-CORBATON IVAN , RICK ROLAND R , AMERGA MESSAY , STEIN JEREMY M
Abstract: A parameter estimator for estimating one or more parameter(s) from a correlation function derived from a signal using a dynamically variable integration time is described. The parameter estimator may be employed in a subscriber station to estimate the time of arrival of one or more base stati on or sector pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.
-
公开(公告)号:AT514957T
公开(公告)日:2011-07-15
申请号:AT02792387
申请日:2002-12-12
Applicant: QUALCOMM INC
Inventor: RICK ROLAND , STEIN JEREMY , AMERGA MESSAY , FERNANDEZ-CORBATON IVAN , RISTIC BORISLAV , BHATIA ASHOK
-
15.
公开(公告)号:AU2003293537B2
公开(公告)日:2009-05-14
申请号:AU2003293537
申请日:2003-12-11
Applicant: QUALCOMM INC
Inventor: ROH MARK CHARLES , JOSHI ABHAY A , JOHNSON PAUL K , BHATIA ASHOK , RISTIC BORISLAV , SALAMAN GLENN , NEUFELD ARTHUR J , RAHMAT ARIE
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.
-
公开(公告)号:BR0213695A
公开(公告)日:2004-12-28
申请号:BR0213695
申请日:2002-10-25
Applicant: QUALCOMM INC
Inventor: RICK ROLAND R , RISTIC BORISLAV , AMERGA MESSAY , STEIN JEREMY M , FERNANDEZ-CORBATON IVAN JESUS , BHATIA ASHOK
Abstract: A parameter estimator for estimating one or more parameter(s) from a correlation function derived from a signal using a dynamically variable search window is described. The parameter estimator may be employed in a subscriber station to estimate the time of arrival of one or more base station pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.
-
17.
公开(公告)号:CA2509383A1
公开(公告)日:2004-06-24
申请号:CA2509383
申请日:2003-12-11
Applicant: QUALCOMM INC
Inventor: JOSHI ABHAY A , NEUFELD ARTHUR J , RISTIC BORISLAV , SALAMAN GLENN , RAHMAT ARIE , JOHNSON PAUL K , BHATIA ASHOK , 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.
-
公开(公告)号:AU2002356873A1
公开(公告)日:2003-05-12
申请号:AU2002356873
申请日:2002-10-29
Applicant: QUALCOMM INC
Inventor: FERNANDEZ-CORBATON IVAN , BHATIA ASHOK , STEIN JEREMY M , RICK ROLAND R , AMERGA MESSAY , RISTIC BORISLAV
Abstract: A parameter estimator for estimating one or more parameter(s) from a correlation function derived from a signal using a dynamically variable integration time is described. The parameter estimator may be employed in a subscriber station to estimate the time of arrival of one or more base station or sector pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.
-
公开(公告)号:BRPI0411914A
公开(公告)日:2006-09-19
申请号:BRPI0411914
申请日:2004-06-28
Applicant: QUALCOMM INC
Inventor: ROH MARK , RISTIC BORISLAV
-
20.
公开(公告)号:MXPA05014047A
公开(公告)日:2006-03-09
申请号:MXPA05014047
申请日:2004-06-28
Applicant: QUALCOMM INC
Inventor: RISTIC BORISLAV
Abstract: Un sistema para optimizar el uso de energia en un dispositivo de comunicacion inalambrico incluye un primer temporizador activado selectivamente que tiene un primer nivel de consumo de energia y que genera una primera senal de tiempo con un primer nivel de exactitud; un segundo temporizador activado selectivamente tiene un segundo nivel de consumo de energia, menor que el primer nivel de consumo de energia, genera una segunda senal de tiempo con un segundo nivel de exactitud menor que el primer nivel de exactitud; un receptor de determinacion de ubicacion activado selectivamente tiene un tercer nivel de consumo de energia, y recibe las senales que permiten determinar la ubicacion utilizando las senales recibidas y, ya sea la primera o segunda senal de tiempo; un procesador de seleccion activa selectivamente, ya sea el primero o el segundo temporizador para utilizarlo con el receptor de determinacion de ubicacion para optimizar el consumo de energia del dispositivo de comunicacion inalambrico.
-
-
-
-
-
-
-
-
-