PROGRAMMABLE MATCHED FILTER SEARCHER FOR MULTIPLE PILOT SEARCHING

    公开(公告)号:CA2393509A1

    公开(公告)日:2001-06-28

    申请号:CA2393509

    申请日:2000-12-20

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS-95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both typ es of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of non-coherant accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a time- sliced manner to search multiple windows. In addition, the searcher allows f or optional independent Walsh decovering for each search window. The time-shari ng approach allows for optional frequency searching of any offset.

    BUSCADOR PROGRAMABLE DE FILTRO ADAPTADO PARA LA BUSQUEDA DE MULTIPLES SEÑALES PILOTO.

    公开(公告)号:ES2287043T3

    公开(公告)日:2007-12-16

    申请号:ES00986657

    申请日:2000-12-20

    Applicant: QUALCOMM INC

    Abstract: Un buscador programable de filtro adaptado que comprende: un registro de desplazamiento (401A-K, 403A-K, 800A-K) que funciona como un registro de desplazamiento único cuando recibe un primer tipo de datos y que funciona como registros de desplazamiento múltiples cuando recibe un segundo tipo de datos, siendo el primer tipo de datos recibido a partir de una fuente única y siendo recibido el segundo tipo de datos a partir de una pluralidad de fuentes; una pluralidad de generadores PN para generar una pluralidad de secuencias PN; un filtro adaptado cargable para cargar dicha pluralidad de secuencias PN, des-escalonar dichos conjuntos de datos entrantes y sumar los resultados intermedios; y un acumulador (810, 816) para recibir dichas sumas y acumularlas en conjuntos para producir un conjunto de sumas acumuladas.

    3.
    发明专利
    未知

    公开(公告)号:AT366001T

    公开(公告)日:2007-07-15

    申请号:AT00986657

    申请日:2000-12-20

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS-95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both types of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of coherent accumulations and a variable number of non-coherent accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a time-sliced manner to search multiple windows. In addition, the searcher allows for optional independent Walsh decovering for each search window. The time-sharing approach allows for optional frequency searching of any offset.

    Programmable matched filter searcher for multiple pilot searching.

    公开(公告)号:HK1052595A1

    公开(公告)日:2003-09-19

    申请号:HK03104854

    申请日:2003-07-08

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS-95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both types of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of coherent accumulations and a variable number of non-coherent accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a time-sliced manner to search multiple windows. In addition, the searcher allows for optional independent Walsh decovering for each search window. The time-sharing approach allows for optional frequency searching of any offset.

    7.
    发明专利
    未知

    公开(公告)号:AT440295T

    公开(公告)日:2009-09-15

    申请号:AT99946742

    申请日:1999-09-03

    Applicant: QUALCOMM INC

    Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment comprises a method for performing position location using a set of signals transmitted from a set of satellites including the steps of storing coarse search data, performing a coarse search on said coarse search data for each satellite from said set of satellites, receiving fine search data, performing a set of fine searches on said fine search data, each fine search being performed on a different time segment of said fine search data, and reporting results.

    8.
    发明专利
    未知

    公开(公告)号:DE60035367T2

    公开(公告)日:2008-02-28

    申请号:DE60035367

    申请日:2000-12-20

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS-95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both types of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of coherent accumulations and a variable number of non-coherent accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a time-sliced manner to search multiple windows. In addition, the searcher allows for optional independent Walsh decovering for each search window. The time-sharing approach allows for optional frequency searching of any offset.

    9.
    发明专利
    未知

    公开(公告)号:DE60035367D1

    公开(公告)日:2007-08-09

    申请号:DE60035367

    申请日:2000-12-20

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method and apparatus for searching is described. This searcher combines the ability to search multiple offsets of single pilots, such as those found in the IS-95 system, with the ability to search multiple pilots, such as those found in a GPS location determination system. Both types of searching can be done in a single architecture combining the parallel computation features of a matched filter with the flexibility of allowing a variable number of coherent accumulations and a variable number of non-coherent accumulations to be performed at high speed for a wide range of search hypotheses in a resource efficient manner. This invention allows for parallel use of the matched filter structure in a time-sliced manner to search multiple windows. In addition, the searcher allows for optional independent Walsh decovering for each search window. The time-sharing approach allows for optional frequency searching of any offset.

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