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公开(公告)号:NO921793D0
公开(公告)日:1992-05-06
申请号:NO921793
申请日:1992-05-06
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , PADOVANI ROBERTO , WHEATLEY III CHARLES E
Abstract: In a cellular telephone system a system for directing communications between a mobile user and cell-sites as a mobile user changes cell-site service areas. The mobile user includes an apparatus for, while in communication with another system user via one cell-site, determining a transition of the mobile user from the cell-site service area to the service area of another cell-site. The system includes circuitry responsive to the indication for coupling communications between the mobile user and the other system user via the new cell-site while the mobile user also remains in communication with the system user via the first cell-site. The system further includes apparatus responsive to the coupling of the communications between the mobile user and the other system user via the new cell-site for terminating the communications between the mobile user and another system user via cell-site with communications continuing between the mobile user and the system user via the new cell-site.
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公开(公告)号:NO333651B1
公开(公告)日:2013-08-05
申请号:NO20002228
申请日:2000-04-28
Applicant: QUALCOMM INC
Inventor: WHEATLEY III CHARLES E , PADOVANI ROBERTO , GROB MATTHEW STUART , BENDER PAUL E , BLACK PETER J , HINDERLING JURG K , SINDHUSHAYANA NAGABHUSHANA T
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:HK1128836A1
公开(公告)日:2009-11-06
申请号:HK09106676
申请日:2009-05-30
Applicant: QUALCOMM INC
Inventor: WHEATLEY III CHARLES E , PADOVANI ROBERTO , ZEHAVI EPHRAIM
IPC: H04J13/04 , H03M13/23 , H04B20060101 , H04B7/005 , H04B7/216 , H04B7/24 , H04L20060101 , H04L1/00 , H04L1/08 , H04W20090101
Abstract: A method for providing power control with variable data rate, the method comprising: receiving a data frame having an input data rate selected from a plurality of possible input data rates; selecting an encoding rate based on the input data rate; encoding data frames to produce output symbols, repeating output symbols using first and second generating polynomials and multiplexing the repeated output symbols, selecting a puncturing format to puncture data bits and producing output data having a constant output data rate for a number of possible input data rates based on a combination of input data rates, selected encoding rate and selected puncturing format for providing said variable data rate communication link; determining a frame error rate for a number of possible input data rates; calculating differences between the frame error rates and a target error rate and adjusting the power depending on whether the difference is greater, equal or less than a predetermined threshold.
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公开(公告)号:FI118665B
公开(公告)日:2008-01-31
申请号:FI20030904
申请日:2003-06-16
Applicant: QUALCOMM INC
Inventor: WHEATLEY III CHARLES E , PADOVANI ROBERTO , ZEHAVI EPHRAIM
Abstract: A method for providing power control with variable data rate, the method comprising: receiving a data frame having an input data rate selected from a plurality of possible input data rates; selecting an encoding rate based on the input data rate; encoding data frames to produce output symbols, repeating output symbols using first and second generating polynomials and multiplexing the repeated output symbols, selecting a puncturing format to puncture data bits and producing output data having a constant output data rate for a number of possible input data rates based on a combination of input data rates, selected encoding rate and selected puncturing format for providing said variable data rate communication link; determining a frame error rate for a number of possible input data rates; calculating differences between the frame error rates and a target error rate and adjusting the power depending on whether the difference is greater, equal or less than a predetermined threshold.
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公开(公告)号:FI20061119A
公开(公告)日:2006-12-15
申请号:FI20061119
申请日:2006-12-15
Applicant: QUALCOMM INC
Inventor: WHEATLEY III CHARLES E , PADOVANI ROBERTO , ZEHAVI EPHRAIM
Abstract: A method for providing power control with variable data rate, the method comprising: receiving a data frame having an input data rate selected from a plurality of possible input data rates; selecting an encoding rate based on the input data rate; encoding data frames to produce output symbols, repeating output symbols using first and second generating polynomials and multiplexing the repeated output symbols, selecting a puncturing format to puncture data bits and producing output data having a constant output data rate for a number of possible input data rates based on a combination of input data rates, selected encoding rate and selected puncturing format for providing said variable data rate communication link; determining a frame error rate for a number of possible input data rates; calculating differences between the frame error rates and a target error rate and adjusting the power depending on whether the difference is greater, equal or less than a predetermined threshold.
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公开(公告)号:NO20040063A
公开(公告)日:2004-02-27
申请号:NO20040063
申请日:2004-01-08
Applicant: QUALCOMM INC
CPC classification number: H04W56/002 , H04B7/2668 , H04B2201/70702 , H04W56/001 , H04W56/0015 , H04W56/0045 , H04W92/20
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107.
公开(公告)号:NO316557B1
公开(公告)日:2004-02-02
申请号:NO925019
申请日:1992-12-23
Applicant: QUALCOMM INC
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公开(公告)号:NO20034052L
公开(公告)日:2003-11-12
申请号:NO20034052
申请日:2003-09-12
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , LING FUNYUN , SAINTS KEITH W , SINDHUSHAYANA NAGABHUSHANA T , WHEATLEY III CHARLES E
Abstract: Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics include one of a re-encoded power metric and a modified Yamamoto metric. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
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公开(公告)号:FI20031396A
公开(公告)日:2003-09-26
申请号:FI20031396
申请日:2003-09-26
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , JACOBS IRWIN M , PADOVANI ROBERTO , WEAVER LINDSAY A JR , WHEATLEY III CHARLES E , VITERBI ANDREW J
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26 , H04L
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:NO20034052D0
公开(公告)日:2003-09-12
申请号:NO20034052
申请日:2003-09-12
Applicant: QUALCOMM INC
Inventor: CHEN TAO , HOLTZMAN JACK M , LING FUNYUN , SAINTS KEITH W , SINDHUSHAYANA NAGABHUSHANA T , WHEATLEY III CHARLES E
Abstract: Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics include one of a re-encoded power metric and a modified Yamamoto metric. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
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