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    FAST ADAPTIVE POWER CONTROL FOR A VARIABLE MULTIRATE COMMUNICATIONS SYSTEM
    32.
    发明专利
    FAST ADAPTIVE POWER CONTROL FOR A VARIABLE MULTIRATE COMMUNICATIONS SYSTEM 未知

    公开(公告)号：HK1085059A1

    公开(公告)日：2006-08-11

    申请号：HK06104970

    申请日：2006-04-26

    Applicant: INTERDIGITAL TECH CORP

    Inventor： HAIM JOHN W

    IPC: H04B1/04 ,  H04B20100101 ,  H04B7/005 ,  H04B7/26 ,  H04W52/24 ,  H04W52/26

    Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.

    TEMPORIZADOR DE APAGADO PRECISO QUE UTILIZA UN RELOJ DE BAJO COSTO Y DE BAJA EXACTITUD
    33.
    发明专利
    TEMPORIZADOR DE APAGADO PRECISO QUE UTILIZA UN RELOJ DE BAJO COSTO Y DE BAJA EXACTITUD 未知

    公开(公告)号：AR046981A1

    公开(公告)日：2006-01-04

    申请号：ARP040104841

    申请日：2004-12-22

    Applicant: INTERDIGITAL TECH CORP

    Inventor： BULTAN AYKUT ,  HAIM JOHN W ,  KAZAKEVICH LEONID

    IPC: H04B1/16 ,  H04B7/005 ,  H04B7/01 ,  H04B7/015 ,  H04W52/28

    Abstract: Una unidad inalámbrica de transmision/recepcion (WTRU) utiliza un oscilador que provee exactitud para parámetros de comunicaciones sincronizadas en un modo activo, y opera a potencia reducida durante un modo de recepcion discontinua (DRX). Un reloj de tiempo real (RTC) es utilizado como estándar de frecuencia durante la operacion de potencia reducida, y se efectua un ajuste de frecuencia mientras que el RTC es utilizado como el estándar de frecuencia. Al efectuar el ajuste de frecuencia, el RTC es capaz de ser utilizado como el estándar de frecuencia para períodos de tiempo sustanciales, reduciendo así el consumo de potencia de la WTRU durante el modo DRX.

    34.
    发明专利
    未知

    公开(公告)号：NO20054643L

    公开(公告)日：2005-11-09

    申请号：NO20054643

    申请日：2005-10-10

    Applicant: INTERDIGITAL TECH CORP

    Inventor： GRIECO DONALD M ,  HAIM JOHN W ,  GUCCIONE LOUIS J ,  TYRA FRYDERYK

    IPC: H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H04B7/005 ,  H04J3/00

    Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function is activated for a given data sample block when the number of saturated data samples that are detected within the block exceeds a threshold value. The power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.

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