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    102.
    发明专利
    未知

    公开(公告)号：DE69233552D1

    公开(公告)日：2006-02-09

    申请号：DE69233552

    申请日：1992-05-17

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN S ,  PADOVANI ROBERTO ,  WHEATLEY E ,  WEAVER A ,  BLAKENEY D

    IPC: H04J13/00 ,  H04B7/005 ,  H04B7/26 ,  H04L27/30 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/34 ,  H04W52/36 ,  H04W52/40 ,  H04W52/52

    Abstract: A cellular communication system in which a system user and another user communicate with each other by way of information carrying spread spectrum modulated signals transmitted via a cell-site in which system: the system user comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said cell-site, a receiver for receiving information carrying spread spectrum modulated signals from said cell-site and means for measuring signal quality in said information carrying spread spectrum modulated signals received by the system user; the cell-site comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said system user, a receiver for receiving information carrying spread spectrum modulated signals from said system user and adjusting means for adjusting the power of information carrying spread spectrum modulated signals transmitted from the cell-site ; ; and power control means is provided for controlling the transmission power of the information carrying spread spectrum modulated signals by measuring the signal power in the information carrying spread spectrum modulated signals received by the system user and transmitting data representing the measured power to the cell-site by way of the information carrying spread spectrum modulated signals, the adjusting means being responsive to the data in the information carrying spread spectrum modulated signals from the system user to adjust the power in the information carrying spread spectrum modulated signals transmitted by the cell-site.

    Method and apparatus for variable rate data communication
    104.
    发明专利
    Method and apparatus for variable rate data communication 未知

    公开(公告)号：HK1073548A1

    公开(公告)日：2005-10-07

    申请号：HK05104579

    申请日：2005-05-31

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  PADOVANI ROBERTO ,  ZEHAVI EPHRAIM

    IPC: H04B20060101 ,  H04J13/04 ,  H03M13/23 ,  H04B7/005 ,  H04B7/216 ,  H04B7/24 ,  H04L20060101 ,  H04L1/00 ,  H04L1/08

    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.

    POWER AND RATE CONTROL IN A CODE DIVISION MULTIPLE ACCESS SYSTEM
    105.
    发明专利
    POWER AND RATE CONTROL IN A CODE DIVISION MULTIPLE ACCESS SYSTEM 未知

    公开(公告)号：HK1073542A1

    公开(公告)日：2005-10-07

    申请号：HK05104511

    申请日：2005-05-30

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E III ,  PADOVANI ROBERTO ,  ZEHAVI EPHRAIM

    IPC: H04J13/04 ,  H03M13/23 ,  H04B20090101 ,  H04B7/005 ,  H04B7/216 ,  H04B7/24 ,  H04L20090101 ,  H04L1/00 ,  H04L1/08

    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.

    106.
    发明专利
    未知

    公开(公告)号：FI115499B

    公开(公告)日：2005-05-13

    申请号：FI20031754

    申请日：2003-12-01

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO

    IPC: H04W52/40 ,  H04B7/005 ,  H04B7/04 ,  H04W16/24 ,  H04W36/06 ,  H04W36/18 ,  H04W36/20 ,  H04W52/24 ,  H04W52/34 ,  H04Q7/38

    Abstract: A method for achieving the soft or softer handoff process such that the performance of a system is improved is based on delaying the softer handoff process. Reverse link demodulation in each sector may continue with or without the transmission of the forward link. The operation could be based on the signal strength of the reverse link signal or the forward link. It is also possible to combine two or more methods to create a hybrid symbol.

    Pn generators for spread spectrum communications systems
    107.
    发明专利
    Pn generators for spread spectrum communications systems 未知

    公开(公告)号：AU2001238005B2

    公开(公告)日：2005-05-05

    申请号：AU2001238005

    申请日：2001-01-31

    Applicant: QUALCOMM INC

    Inventor： WEAVER LINDSAY A JR ,  PADOVANI ROBERTO ,  BLACK PETER J

    IPC: H04B1/7073 ,  H03K3/84 ,  H04B1/707 ,  H04J13/00 ,  H04J13/10 ,  H04Q7/38 ,  H04B001/707 ,  H04B007/26

    Abstract: Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. By using uncorrelated PN sequences, the likehood of detecting a pilot signal from an undesired system is reduced or minimized, and the mean time to acquisition of the pilot signal from the desired system is improved. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set. The PN sequences for the first set can be generated based on the characteristic polynomials defined by IS-95-A, and the PN sequences for the second set can be the reverse of the PN sequences for the first set.

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