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107 records (took 0.023 seconds)

    62.
    发明专利
    未知

    公开(公告)号：NO941264L

    公开(公告)日：1994-06-08

    申请号：NO941264

    申请日：1994-04-07

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E

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

    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.

    63.
    发明专利
    未知

    公开(公告)号：NO941264A

    公开(公告)日：1994-06-08

    申请号：NO941264

    申请日：1994-04-07

    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

    CPC classification number: H04W52/52 ,  H04W52/0245 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  Y02D70/00

    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.

    64.
    发明专利
    未知

    公开(公告)号：BR9007826A

    公开(公告)日：1992-08-25

    申请号：BR9007826

    申请日：1990-11-05

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WHEATLEY CHARLES E

    IPC: 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 as to arrive at the cell-site at a desired power level.

    65.
    发明专利
    未知

    公开(公告)号：FI121905B

    公开(公告)日：2011-05-31

    申请号：FI20100206

    申请日：2010-05-12

    Applicant: QUALCOMM INC

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

    IPC: H04B7/005 ,  H04J13/00 ,  H04B7/26 ,  H04L27/30 ,  H04W52/00 ,  H04W52/02 ,  H04W52/04 ,  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.

    66.
    发明专利
    未知

    公开(公告)号：DE69737606T2

    公开(公告)日：2008-01-10

    申请号：DE69737606

    申请日：1997-12-19

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN EDWARD G ,  CHEN TAO ,  WHEATLEY CHARLES E

    IPC: H04L12/00 ,  H04L12/28 ,  H04W36/14

    Abstract: A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls during inter-system hard handoff. In the event that a hard handoff attempt is unsuccessful, the mobile station will return to the original system with information which the communication system of the present invention uses to assist in the performance of future handoff attempts. Alternatively, with no handoff attempt made, the mobile station monitors the destination system then returns to the original system with information used to assist in subsequent handoff attempts. The information returned from monitoring a CDMA system consists of results of a search for one or more pilots given at offsets in a specific list provided to the mobile station by the base station or a set of offsets based upon a predetermined search algorithm.

    69.
    发明专利
    未知

    公开(公告)号：DE69737606D1

    公开(公告)日：2007-05-24

    申请号：DE69737606

    申请日：1997-12-19

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN EDWARD G ,  CHEN TAO ,  WHEATLEY CHARLES E

    IPC: H04L12/00 ,  H04L12/28 ,  H04W36/14

    Abstract: A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls during inter-system hard handoff. In the event that a hard handoff attempt is unsuccessful, the mobile station will return to the original system with information which the communication system of the present invention uses to assist in the performance of future handoff attempts. Alternatively, with no handoff attempt made, the mobile station monitors the destination system then returns to the original system with information used to assist in subsequent handoff attempts. The information returned from monitoring a CDMA system consists of results of a search for one or more pilots given at offsets in a specific list provided to the mobile station by the base station or a set of offsets based upon a predetermined search algorithm.

    PROCEDIMIENTO Y APARATO PARA COMUNICACION DE DATOS A VELOCIDAD VARIABLE.
    70.
    发明专利
    PROCEDIMIENTO Y APARATO PARA COMUNICACION DE DATOS A VELOCIDAD VARIABLE. 未知

    公开(公告)号：ES2273136T3

    公开(公告)日：2007-05-01

    申请号：ES04021031

    申请日：1994-11-22

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E ,  PADOVANI ROBERTO ,  ZEHAVI EPHRAIM

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

    Abstract: Un procedimiento para proporcionar un enlace de comunicación de velocidad variable de datos, comprendiendo el procedimiento: la recepción de una trama de datos que tiene una velocidad de datos de entrada seleccionada entre una pluralidad de posibles velocidades de datos de entrada; la codificación de bits de datos de dicha trama de datos a una cierta tasa de codificación, para producir una trama de datos codificados, en donde dicha tasa de codificación se selecciona entre una pluralidad de tasas de codificación; la punción de al menos un bit de datos de la trama de datos codificados, según un formato de punción, en donde dicho formato de punción se selecciona entre una pluralidad de formatos de punción, y cada formato de punción identifica distintas ubicaciones de bits de datos de punción en la trama de datos codificados; la producción de una trama de datos de salida que tiene una velocidad constante de datos de salida, independientemente de dicha velocidad de datos de entrada, para proporcionar dicho enlace de comunicación de velocidad variable de datos.

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