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公开(公告)号:DE60219000T2
公开(公告)日:2007-12-06
申请号:DE60219000
申请日:2002-05-17
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , HINDERLING JURG
IPC: H04J13/16 , H04B1/7075 , H04B1/7117 , H04Q7/38
Abstract: Techniques for increased pilot detection accuracy are disclosed, which provide the benefits of increased acquisition speed, increased data rate, decreased power, and improved overall system capacity. In one aspect, pilot energy calculations corresponding to PN offsets surrounding the PN offset of a local pilot energy maximum are combined with that local pilot energy maximum resulting in a compensated, more accurate local pilot energy maximum. In another aspect, the combination of nearby energy calculations is combined with the local pilot energy maximum via a function with pre-calculated compensation factors. The pre-calculated compensation factors can be determined to minimize mean-squared error in the resultant compensated local pilot energy maximum. These factors can be calculated based on a matched filter. The techniques described herein apply equally to both access points and access terminals.
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公开(公告)号:AT220266T
公开(公告)日:2002-07-15
申请号:AT95936845
申请日:1995-09-29
Applicant: QUALCOMM INC
Inventor: LEVIN JEFFREY A , EASTON KENNETH D , HINDERLING JURG , BROCK MICHAEL P , WEAVER LINDSAY A JR
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公开(公告)号:DE60219000D1
公开(公告)日:2007-05-03
申请号:DE60219000
申请日:2002-05-17
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , HINDERLING JURG
IPC: H04J13/16 , H04B1/7075 , H04B1/7117 , H04Q7/38
Abstract: Techniques for increased pilot detection accuracy are disclosed, which provide the benefits of increased acquisition speed, increased data rate, decreased power, and improved overall system capacity. In one aspect, pilot energy calculations corresponding to PN offsets surrounding the PN offset of a local pilot energy maximum are combined with that local pilot energy maximum resulting in a compensated, more accurate local pilot energy maximum. In another aspect, the combination of nearby energy calculations is combined with the local pilot energy maximum via a function with pre-calculated compensation factors. The pre-calculated compensation factors can be determined to minimize mean-squared error in the resultant compensated local pilot energy maximum. These factors can be calculated based on a matched filter. The techniques described herein apply equally to both access points and access terminals.
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公开(公告)号:AT357776T
公开(公告)日:2007-04-15
申请号:AT02731807
申请日:2002-05-17
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , HINDERLING JURG
IPC: H04J13/16 , H04B1/7075 , H04B1/7117 , H04Q7/38 , H04B1/707
Abstract: Techniques for increased pilot detection accuracy are disclosed, which provide the benefits of increased acquisition speed, increased data rate, decreased power, and improved overall system capacity. In one aspect, pilot energy calculations corresponding to PN offsets surrounding the PN offset of a local pilot energy maximum are combined with that local pilot energy maximum resulting in a compensated, more accurate local pilot energy maximum. In another aspect, the combination of nearby energy calculations is combined with the local pilot energy maximum via a function with pre-calculated compensation factors. The pre-calculated compensation factors can be determined to minimize mean-squared error in the resultant compensated local pilot energy maximum. These factors can be calculated based on a matched filter. The techniques described herein apply equally to both access points and access terminals.
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公开(公告)号:BR0209803A
公开(公告)日:2004-12-21
申请号:BR0209803
申请日:2002-05-17
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , HINDERLING JURG
IPC: H04J13/16 , H04B1/7075 , H04B1/7117 , H04Q7/38 , H04B1/707
Abstract: Techniques for increased pilot detection accuracy are disclosed, which provide the benefits of increased acquisition speed, increased data rate, decreased power, and improved overall system capacity. In one aspect, pilot energy calculations corresponding to PN offsets surrounding the PN offset of a local pilot energy maximum are combined with that local pilot energy maximum resulting in a compensated, more accurate local pilot energy maximum. In another aspect, the combination of nearby energy calculations is combined with the local pilot energy maximum via a function with pre-calculated compensation factors. The pre-calculated compensation factors can be determined to minimize mean-squared error in the resultant compensated local pilot energy maximum. These factors can be calculated based on a matched filter. The techniques described herein apply equally to both access points and access terminals.
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公开(公告)号:HK1050450A1
公开(公告)日:2003-06-20
申请号:HK03102514
申请日:2003-04-09
Applicant: QUALCOMM INC
Inventor: PADOVANI ROBERTO , SINDHUSHAYANA NAGABHUSHANA , WHEATLEY CHARLES III , BENDER PAUL , BLACK PETER , GROB MATTHEW , HINDERLING JURG
IPC: H04W40/16 , H04B1/7103 , H04B7/005 , H04L1/00 , H04L1/08 , H04L1/16 , H04L1/18 , H04L12/56 , H04L29/08 , H04W16/14 , H04W24/00 , H04W28/22 , H04W52/04 , H04W52/12 , H04W52/24 , H04W52/26 , H04W52/40 , H04W72/08
Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
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公开(公告)号:HK1001447A1
公开(公告)日:1998-06-19
申请号:HK98100401
申请日:1998-01-16
Applicant: QUALCOMM INC
Inventor: LEVIN JEFFREY A , EASTON KENNETH D , HINDERLING JURG , BROCK MICHAEL P , WEAVER LINDSAY A JR
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公开(公告)号:BR9509057A
公开(公告)日:1997-10-21
申请号:BR9509057
申请日:1995-09-29
Applicant: QUALCOMM INC
Inventor: LEVIN JEFREY A , EASTON KENNETH D , HINDERLING JURG , BROCK MICHAEL P , WEAVER LINSDAY A JR
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