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121 records (took 0.023 seconds)

    44.
    发明专利
    未知

    公开(公告)号：DE60135228D1

    公开(公告)日：2008-09-18

    申请号：DE60135228

    申请日：2001-07-17

    Applicant: QUALCOMM INC

    Inventor： SMEE JOHN E ,  JALALI AHMAD

    IPC: H04B1/7115 ,  H04B3/06 ,  H04B7/005 ,  H04B7/08 ,  H04L25/03

    Abstract: In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized and combined within an equalizer to generate symbol estimates, which maybe subsequently processed (e.g. despread and decovered) to provide a first stream of recovered symbols. The sample stream(s) may be equalized prior to being combined. In this case, each sample stream is filtered with a set of coefficients and may be scaled with a scaling factor. The scaled samples for all streams are then combined to generate the symbol estimates. Alternatively, the sample stream(s) may be combined prior to being equalized. In this case, each sample stream is scaled by a scaling factor. The scaled samples for all streams are then combined to generate summed samples that are further filtered with a set of coefficients to generate the symbol estimates. The sample stream(s) may also be processed by a second processing scheme with one or more rake receivers to provide a second stream of recovered symbols. The signal quality for each processing scheme can be estimated and used to select either the first or second processing scheme.

    45.
    发明专利
    未知

    公开(公告)号：AT403977T

    公开(公告)日：2008-08-15

    申请号：AT01953551

    申请日：2001-07-17

    Applicant: QUALCOMM INC

    Inventor： SMEE JOHN E ,  JALALI AHMAD

    IPC: H04B1/7115 ,  H04B3/06 ,  H04B7/005 ,  H04B7/08 ,  H04L25/03

    Abstract: In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized and combined within an equalizer to generate symbol estimates, which maybe subsequently processed (e.g. despread and decovered) to provide a first stream of recovered symbols. The sample stream(s) may be equalized prior to being combined. In this case, each sample stream is filtered with a set of coefficients and may be scaled with a scaling factor. The scaled samples for all streams are then combined to generate the symbol estimates. Alternatively, the sample stream(s) may be combined prior to being equalized. In this case, each sample stream is scaled by a scaling factor. The scaled samples for all streams are then combined to generate summed samples that are further filtered with a set of coefficients to generate the symbol estimates. The sample stream(s) may also be processed by a second processing scheme with one or more rake receivers to provide a second stream of recovered symbols. The signal quality for each processing scheme can be estimated and used to select either the first or second processing scheme.

    46.
    发明专利
    未知

    公开(公告)号：NO20073179L

    公开(公告)日：2007-09-21

    申请号：NO20073179

    申请日：2007-06-21

    Applicant: QUALCOMM INC

    Inventor： SMEE JOHN E ,  HOU JILEI ,  PFISTER HENRY DAVID ,  TOMASIN STEFANO

    IPC: H04B7/005 ,  H04B1/707

    Abstract: A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

    47.
    发明专利
    未知

    公开(公告)号：BR0112677A

    公开(公告)日：2006-09-12

    申请号：BR0112677

    申请日：2001-07-17

    Applicant: QUALCOMM INC

    Inventor： SMEE JOHN E ,  JALALI AHMAD

    IPC: H04B1/7115 ,  H04B3/06 ,  H04B7/005 ,  H04B7/08 ,  H04L25/03 ,  H04B1/707

    Abstract: In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized and combined within an equalizer to generate symbol estimates, which maybe subsequently processed (e.g. despread and decovered) to provide a first stream of recovered symbols. The sample stream(s) may be equalized prior to being combined. In this case, each sample stream is filtered with a set of coefficients and may be scaled with a scaling factor. The scaled samples for all streams are then combined to generate the symbol estimates. Alternatively, the sample stream(s) may be combined prior to being equalized. In this case, each sample stream is scaled by a scaling factor. The scaled samples for all streams are then combined to generate summed samples that are further filtered with a set of coefficients to generate the symbol estimates. The sample stream(s) may also be processed by a second processing scheme with one or more rake receivers to provide a second stream of recovered symbols. The signal quality for each processing scheme can be estimated and used to select either the first or second processing scheme.

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