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    51.
    发明专利
    未知

    公开(公告)号：AT343875T

    公开(公告)日：2006-11-15

    申请号：AT04021031

    申请日：1994-11-22

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  PADOVANI ROBERTO ,  ZEHAVI EPHRAIM

    IPC: H04J13/04 ,  H03M13/23 ,  H04B20060101 ,  H04B7/005 ,  H04B7/216 ,  H04B7/24 ,  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.

    52.
    发明专利
    未知

    公开(公告)号：AT339811T

    公开(公告)日：2006-10-15

    申请号：AT04019499

    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 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00 ,  H04B1/707 ,  H03G3/20

    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).

    56.
    发明专利
    未知

    公开(公告)号：DK0607359T3

    公开(公告)日：2001-07-02

    申请号：DK92924105

    申请日：1992-10-08

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E

    IPC: H04J13/04 ,  H04B7/005 ,  H04B7/26 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52 ,  H04L27/30

    Abstract: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level.

    A method for time synchronising a first base station with a reference base station in a cdma communication system
    57.
    发明专利
    A method for time synchronising a first base station with a reference base station in a cdma communication system 未知

    公开(公告)号：NZ503071A

    公开(公告)日：2001-06-29

    申请号：NZ50307198

    申请日：1998-09-18

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  TIEDEMANN EDWARD G

    IPC: H04B7/26 ,  H04B1/7075 ,  H04B1/7077 ,  H04J3/06 ,  H04W56/00 ,  H04W92/20 ,  H04B7/00 ,  H04B7/04 ,  H04B7/212 ,  H04B7/216 ,  H04H3/00 ,  H04J3/00

    Abstract: A method for time synchronizing a slave base station 62 with a reference base station 64. The slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station 60 in the soft handoff region between the reference base station and the slave base station. First, the round trip delay between the mobile station and the reference base station is measured by the reference base station. Once the mobile station acquires the signal from the slave base station, it measures and reports the difference between the amount of time it takes a signal to travel from the reference base station to it and the amount of time it takes a signal to travel from the slave base station to it. The last measurement necessary is a measurement by the slave base station of the time difference between the time it received the reverse link signal from the mobile and the time of transmission of a forward link signal from the base station.

    MOBILE STATION ASSISTED TIMING SYNCHRONIZATION IN A CDMA COMMUNICATION SYSTEM
    58.
    发明专利
    MOBILE STATION ASSISTED TIMING SYNCHRONIZATION IN A CDMA COMMUNICATION SYSTEM 未知

    公开(公告)号：BG104592A

    公开(公告)日：2001-03-30

    申请号：BG10459200

    申请日：2000-07-11

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  TIEDEMANN EDWARD G

    IPC: H04W56/00 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B7/26 ,  H04J3/06 ,  H04J13/00

    Abstract: In the present invention, the slave base station (64) attains synchronization with reference base station (62) through messages (50) transmitted from and received by a mobile station (60) either in the soft handoff region between the reference base station (62) and the slave base station (64) or within a range which allows the mobile station (80) to communicate with the slave base station (64).When the mobile station (62) is not in communication with both the reference base station and the slave base station (62), the n the round trip delay between the mobile station and the reference base station is measured by the reference base station (62). The reference base station (62) communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station (64) acquires the signal (504) from the mobile station (60) and determines when the signal from the mobile station arrives. The slave base station (64) then makes and estimates as to the length of the delay between transmission of a signal from the mobile station (60) to the slave base station (64). Based upon these measurements and estimates, the slave base station (64) determines the error which is present in the slave base station system time. 1 claim, 9 figures

    TRANSMITTER POWER CONTROL SYSTEM
    59.
    发明专利
    TRANSMITTER POWER CONTROL SYSTEM 未知

    公开(公告)号：HK1014814A1

    公开(公告)日：1999-09-30

    申请号：HK98116164

    申请日：1998-12-28

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E

    IPC: H04J13/04 ,  H04B7/005 ,  H04B7/26 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52 ,  H04L ,  H04B

    Abstract: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level.

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