INTERFERENCE MANAGEMENT EMPLOYING FRACTIONAL CODE REUSE

    公开(公告)号:CA2699045A1

    公开(公告)日:2009-03-26

    申请号:CA2699045

    申请日:2008-09-19

    Applicant: QUALCOMM INC

    Abstract: Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. In a fractional reuse scheme employing spreading codes, each node may utilize a subset of the spreading codes. The subset may be determined by how much interference is seen when different spreading codes are used.

    ADAPTATION OF TRANSMIT POWER BASED ON MAXIMUM RECEIVED SIGNAL STRENGTH

    公开(公告)号:CA2693920A1

    公开(公告)日:2009-02-19

    申请号:CA2693920

    申请日:2008-08-08

    Applicant: QUALCOMM INC

    Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling.

    Method and apparatus for estimating power required for transmission of data at a rate in a communication system

    公开(公告)号:AU2003234882C1

    公开(公告)日:2009-01-22

    申请号:AU2003234882

    申请日:2003-03-04

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus for estimating maximum rate of data and for estimating a transmission power required for transmission of a data with a rate of data in a communication system are disclosed. A terminal determines a quality metric of a communication link, over which data are to be transmitted, and modifies the determined quality metric by a quality metric margin. The terminal then estimates the maximum rate of data in accordance with the modified quality metric. Alternatively, the terminal then estimates transmission power required for transmission of a data with a rate of data in accordance with the rate of data and the modified quality metric. The quality metric margin may be pre-determined or dynamically adjusted. The terminal dynamically adjusts the quality metric margin in accordance with a result of comparison of a transmit power corresponding to the estimated maximum rate of data with an actual transmit power used to transmit the data.

    138.
    发明专利
    未知

    公开(公告)号:DE60136092D1

    公开(公告)日:2008-11-20

    申请号:DE60136092

    申请日:2001-11-20

    Applicant: QUALCOMM INC

    Abstract: A receiver unit includes a first buffer that receives and stores digitized samples at a particular sample rate and a data processor that retrieves segments of digitized samples from the first buffer and processes the retrieved segments with a particular set of parameters values. The data processor is operated based on a processing clock having a frequency that is (e.g., then or more times) higher than the sample rate. Multiple instances of the received signal can be processed by retrieving and processing multiple segments of digitized samples from the first buffer, the receiver unit typically further includes a receiver that receives and processes a transmitted signal to provide the digitized samples and a controller that dispatches tasks for the data processor. The data processor can be designed to include a correlator, a symbol demodulation and combiner, a first accumulator, and a second buffer, or a combination thereof. The correlator despreads the retrieved segments of digitized samples with corresponding segments of PN despreading sequences to provide correlated samples, which are further processed by the symbol demodulation and combiner to provide processed symbols. The second buffer stores the processed symbols, and can be designed to provide de-interleaving of the processed symbols.

    CONTROL DE GANANCIA PARA DISOPOSITIVO DE COMUNICACIONES.

    公开(公告)号:ES2306865T3

    公开(公告)日:2008-11-16

    申请号:ES03721474

    申请日:2003-03-26

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento de control de ganancia, que comprende: la amplificación de una señal por un amplificador (110, 122, 136, 138) que tiene una ganancia representada por una de una pluralidad de curvas de ganancia dependiendo de un valor de un parámetro, siendo la señal amplificada en un primero de los valores del parámetro; y el control de la ganancia de la señal amplificada a partir de una curva de ganancia predeterminada relacionada con la curva de ganancia del amplificador (110, 122, 136, 138) para un segundo de los valores del parámetro mediante el ajuste de una señal de control de ganancia correspondiente a un punto sobre la curva de ganancia predeterminada como una función del primero de los valores del parámetro, y la aplicación de la señal de control de ganancia ajustada al amplificador (110, 122, 136, 138).

    АВТОМАТИЧЕСКИЙ ЗАПРОС ПО ОБРАТНОЙ ЛИНИИ СВЯЗИ

    公开(公告)号:UA84278C2

    公开(公告)日:2008-10-10

    申请号:UA2005004861

    申请日:2003-10-24

    Applicant: QUALCOMM INC

    Abstract: ПослеуспешногодекодированияпервогонабораслотовпервогопакетаданныхСетьДоступа (AN) можетпослатьподтверждающееприемсообщение (АСК) натерминалдоступа (AT),чтобыуказатьнато, чтоСетьдоступа (AN) успешнодекодироваладанныев принятомпервомнабореслотовпервогопакетаданных. ПосленеудачногодекодированияпервогонабораслотовпервогопакетаданныхСетьДоступа (AN) можетпослатьсообщение (NACK), котороеотрицаетподтверждениеприема, наТерминалДоступа (AT), чтобыуказатьнато, чтоСетьдоступа (AN) неудачнодекодироваладанныепринятогопервогонабораслотовпервогопакетаданных. Базируясьнаприемесообщения NACK, ТерминалдоступаАТможетповторноотправитьданные, отправляявторойнаборслотовпервогопакетаданных, которыйсодержитрезер

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