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    121.
    发明专利
    未知

    公开(公告)号：DE1043844T1

    公开(公告)日：2001-05-03

    申请号：DE00114941

    申请日：1995-12-22

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LOMP GARY R

    IPC: G06F17/10 ,  H03G3/30 ,  H04B20060101 ,  H04B1/04 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/36 ,  H04W52/52 ,  H04W84/00

    Abstract: The present invention discloses a communication station for communicating with a second station in a cellular-communication network using spread spectrum modulation wherein the second station transmits power commands to the communication station based on a received power level from the communication station, the communication station comprising: a transmitter having an adjustable transmitter power level for transmitting spread-spectrum signals; means for sequentially receiving power commands from a second station with which communication is being conducted; means for comparing a sequence of at least two of the received power commands to determine if the received commands in the sequence match; and means for adjusting the transmitter power level at a same rate as the reception of the power commands; wherein if the command sequence matches the transmitter power level is adjusted by a different amount than if the command sequence does not match. A method for adjusting a transmitter power level is also disclosed.

    123.
    发明专利
    未知

    公开(公告)号：FI972241A0

    公开(公告)日：1997-05-27

    申请号：FI972241

    申请日：1997-05-27

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LOMP GARY R

    IPC: G06F17/10 ,  H03G3/30 ,  H04B20060101 ,  H04B1/04 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/36 ,  H04W52/52 ,  H04W84/00 ,  H04B ,  H04J

    Abstract: The present invention discloses a communication station for communicating with a second station in a cellular-communication network using spread spectrum modulation wherein the second station transmits power commands to the communication station based on a received power level from the communication station, the communication station comprising: a transmitter having an adjustable transmitter power level for transmitting spread-spectrum signals; means for sequentially receiving power commands from a second station with which communication is being conducted; means for comparing a sequence of at least two of the received power commands to determine if the received commands in the sequence match; and means for adjusting the transmitter power level at a same rate as the reception of the power commands; wherein if the command sequence matches the transmitter power level is adjusted by a different amount than if the command sequence does not match. A method for adjusting a transmitter power level is also disclosed.

    Spread-spectrum system and method
    124.
    发明专利
    Spread-spectrum system and method 未知

    公开(公告)号：AU4529796A

    公开(公告)日：1996-07-24

    申请号：AU4529796

    申请日：1995-12-22

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LOMP GARY R

    IPC: G06F17/10 ,  H03G3/30 ,  H04B20060101 ,  H04B1/04 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/36 ,  H04W52/52 ,  H04W84/00 ,  H04K1/00 ,  H04B15/00 ,  H04L27/30

    Abstract: The present invention discloses a communication station for communicating with a second station in a cellular-communication network using spread spectrum modulation wherein the second station transmits power commands to the communication station based on a received power level from the communication station, the communication station comprising: a transmitter having an adjustable transmitter power level for transmitting spread-spectrum signals; means for sequentially receiving power commands from a second station with which communication is being conducted; means for comparing a sequence of at least two of the received power commands to determine if the received commands in the sequence match; and means for adjusting the transmitter power level at a same rate as the reception of the power commands; wherein if the command sequence matches the transmitter power level is adjusted by a different amount than if the command sequence does not match. A method for adjusting a transmitter power level is also disclosed.

    Spread spectrum system and method
    125.
    发明专利
    Spread spectrum system and method 未知

    公开(公告)号：ZA9510969B

    公开(公告)日：1996-07-08

    申请号：ZA9510969

    申请日：1995-12-27

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LOMP GARY R

    IPC: G06F17/10 ,  H03G3/30 ,  H04B20060101 ,  H04B1/04 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/36 ,  H04W52/52 ,  H04W84/00 ,  H04B ,  H03C ,  H03K

    Abstract: The present invention discloses a communication station for communicating with a second station in a cellular-communication network using spread spectrum modulation wherein the second station transmits power commands to the communication station based on a received power level from the communication station, the communication station comprising: a transmitter having an adjustable transmitter power level for transmitting spread-spectrum signals; means for sequentially receiving power commands from a second station with which communication is being conducted; means for comparing a sequence of at least two of the received power commands to determine if the received commands in the sequence match; and means for adjusting the transmitter power level at a same rate as the reception of the power commands; wherein if the command sequence matches the transmitter power level is adjusted by a different amount than if the command sequence does not match. A method for adjusting a transmitter power level is also disclosed.

    Unidad de abonado y método para controlar la potencia de transmisión durante el establecimiento de un canal en un sistema de comunicación de AMDC
    126.
    发明专利
    Unidad de abonado y método para controlar la potencia de transmisión durante el establecimiento de un canal en un sistema de comunicación de AMDC 未知

    公开(公告)号：ES2530373T3

    公开(公告)日：2015-03-02

    申请号：ES07009968

    申请日：1997-06-23

    Applicant: INTERDIGITAL TECH CORP

    Inventor： OZLUTURK FATIH ,  LOMP GARY R ,  HAIM JOHN W

    IPC: H04B1/707 ,  H04B7/216 ,  H04J13/16 ,  H04L7/00 ,  H04W52/36 ,  H04W52/50 ,  H04W52/60

    Abstract: Un sistema que comprende: -una unidad de abonado (16) para controlar la potencia de transmisión durante el establecimiento de un canal en un sistema (10) de comunicación de acceso múltiple por división de código utilizando la transmisión de un código corto, que tiene un período mucho más corto que un código de expansión convencional, que es actualizada periódicamente y no porta datos durante el aumento de potencia inicial para limitar el exceso de potencia y las interferencias y permitir una rápida sincronización con una estación de base (14), comprendiendo la unidad de abonado: -medios (90; 158) para transmitir el código corto a una estación de base (14) a un nivel de potencia de transmisión que es más bajo que un nivel de potencia requerido para la detección por parte de la estación de base; -medios (160) para incrementar rápidamente dicha potencia de transmisión y transmitir repetidamente el código corto hasta que el código corto sea detectado por la estación de base, y, comprendiendo la estación de base: -medios (62) para transmitir la indicación a la unidad de abonado de que cese el incremento de potencia de transmisión una vez que el código corto haya sido detectado.

    A METHOD OF CONTROLLING INITIAL POWER RAMP-UP IN CDMA SYSTEMS BY USING SHORT CODES
    128.
    发明专利
    A METHOD OF CONTROLLING INITIAL POWER RAMP-UP IN CDMA SYSTEMS BY USING SHORT CODES 未知

    公开(公告)号：CA2413954C

    公开(公告)日：2008-09-02

    申请号：CA2413954

    申请日：1997-06-23

    Applicant: INTERDIGITAL TECH CORP

    Inventor： OZLUTURK FATIH M ,  LOMP GARY R ,  HAIM JOHN W

    IPC: H04B1/707 ,  H04B7/216 ,  H04J13/16 ,  H04L7/00 ,  H04W52/36 ,  H04W52/50 ,  H04W52/60

    Abstract: A subscriber terminal using a method of controlling initial power ramp-up in CDMA systems by using short codes is disclosed. The subscriber terminal includes having its transmission power regulated, with means for transmitting a periodic signal at an initial predetermined power level and repeatedly retransmitting the periodic signal each retransmission occurring at successively higher power levels; means for receiving a confirmation signal, and means for terminating transmission of the periodic signal in response to the received confirmation; means for engaging in a closed loop power control procedure to regulate the subscriber unit transmission power, after the periodic signal transmission terminating; and means for transmitting a call signal. The subscriber terminal using a method of controlling initial power ramp-up in CDMA systems by using short codes is particularly useful for overcoming the problems of power overshoot and interference to other subscriber stations known in the art and to provide for a base station to quickly synchronize to the spreading code used by the subscriber unit.

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