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93 records (took 0.021 seconds)

    61.
    发明专利
    未知

    公开(公告)号：BR9913548A

    公开(公告)日：2001-10-09

    申请号：BR9913548

    申请日：1999-09-03

    Applicant: QUALCOMM INC

    Inventor： KANG INYUP ,  SIH GILBERT C ,  ZOU QIUZHEN

    IPC: G01S5/00 ,  G01S19/23 ,  G01S19/25 ,  G01S19/29 ,  G01S19/30 ,  H04Q7/34 ,  G01S5/14

    Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location comprising the steps of receiving signal samples, generating a coarse acquisition sequence, rotating the coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying the rotated coarse acquisition sequence to the signal samples at a set of time offsets yielding correlated output data.

    62.
    发明专利
    未知

    公开(公告)号：ID29048A

    公开(公告)日：2001-07-26

    申请号：ID20011065

    申请日：1999-10-12

    Applicant: QUALCOMM INC

    Inventor： BUTLER BRIAN K ,  ZHANG HAITAO ,  TIEDEMANN EDWARD G J ,  ZOU QIUZHEN ,  SIH GILBERT C ,  AGRAWAL AVNEESH

    IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02 ,  H04B1/07 ,  H04Q7/32

    Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

    64.
    发明专利
    未知

    公开(公告)号：FI20010422A

    公开(公告)日：2001-03-02

    申请号：FI20010422

    申请日：2001-03-02

    Applicant: QUALCOMM INC

    Inventor： ZOU QIUZHEN ,  SIH GILBERT C ,  KANG INYUP

    IPC: G01S1/00 ,  G01S1/04 ,  G01S5/00 ,  G01S19/23 ,  G01S19/25 ,  G01S19/30 ,  G01S19/48 ,  H04M1/725 ,  H04Q7/34 ,  G01S

    Abstract: A mobile device (10) comprises a receiver and a coherent integrator (104), wherein the receiver is configured to receive a first signal from a satellite, the first signal including a navigation message. The coherent integrator is configured to coherently integrate first signal samples for a particular coherent integration interval. When the coherent integration interval straddles a data boundary of the navigation message, the coherent integration is divided into a section before the data boundary of the navigation message and a section after the data boundary of the navigation message

    Offline page monitoring
    67.
    发明专利
    Offline page monitoring 未知

    公开(公告)号：AU1112000A

    公开(公告)日：2000-05-01

    申请号：AU1112000

    申请日：1999-10-12

    Applicant: QUALCOMM INC

    Inventor： BUTLER BRIAN K ,  ZHANG HAITAO ,  TIEDEMANN EDWARD G JR ,  ZOU QIUZHEN ,  SIH GILBERT C ,  AGRAWAL AVNEESH

    IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02 ,  H04B1/707 ,  H04Q7/32

    Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

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