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    42.
    发明专利
    未知

    公开(公告)号：FI121253B

    公开(公告)日：2010-08-31

    申请号：FI20070567

    申请日：2007-07-25

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WHEATLEY CHARLES E ,  WEAVER LINDSAY A JR ,  BLAKENEY ROBERT D

    IPC: H04B7/005 ,  H04J13/00 ,  H04B1/707 ,  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.

    43.
    发明专利
    未知

    公开(公告)号：DE69841489D1

    公开(公告)日：2010-03-25

    申请号：DE69841489

    申请日：1998-09-18

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  TIEDEMANN EDWARD G

    IPC: H04B7/00 ,  H04B7/26 ,  H04B1/7075 ,  H04B1/7077 ,  H04J3/06 ,  H04W56/00 ,  H04W92/20

    Abstract: In the present invention, the slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station either in the soft handoff region between the reference base station and the slave base station or within a range which allows the mobile station to communicate with the slave base station. When the mobile station is not in communication with both the reference base station and the slave base station, then the round trip delay between the mobile station and the reference base station is measured by the reference base station. The reference base station communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station acquires the signal from the mobile station and determines when the signal from the mobile station arrives. The slave base station then makes an estimate as to the length of the delay between transmission of a signal from the mobile station to the slave base station. Based upon these measurements and estimates, the slave base station determines the error which is present in the slave base station system time.

    46.
    发明专利
    未知

    公开(公告)号：DE69535225T2

    公开(公告)日：2007-09-13

    申请号：DE69535225

    申请日：1995-12-11

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

    IPC: H04B1/06 ,  H04B7/005 ,  H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/26 ,  H04B15/00

    Abstract: An apparatus to increase a radio receiver's immunity to radio frequency interference, the radio receiver receiving a signal, the apparatus comprising: a switch (1105) coupled to the received signal, the switch (1105) having an open position and a closed position; a resistance (1101), a first end of the resistance (1101) being coupled to the closed position of the switch (1105) and a second end of the resistance (1101) being coupled to a ground potential; an amplifier (1101) having an input coupled to the open position of the switch (1105), for generating an amplified received signal at an output; a controller coupled to the switch (1105), for switching the switch (1105) to the closed position in response to the received signal exceeding a predetermined power level, said received signal conducting through said switch (1105) and said resistance (1101) to ground potential when said switch (1105) is in said closed position; and said resistance (1101) creating an impedance mismatch at the input to said amplifier (1110) when said switch (1105) is in closed position, thereby reducing the gain contributed by said amplifier (1110).

    48.
    发明专利
    未知

    公开(公告)号：FI20070567A

    公开(公告)日：2007-07-25

    申请号：FI20070567

    申请日：2007-07-25

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WHEATLEY CHARLES E ,  WEAVER LINDSAY A JR ,  BLAKENEY ROBERT D

    IPC: H04B20060101 ,  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.

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