ADMINISTRACION DE INTERFAZ EN UN SISTEMA DE COMUNICACION INALAMBRICA UTILIZANDO REUTILIZACION DE TIEMPO DE SUB-CUADRO.

    公开(公告)号:MX2010005770A

    公开(公告)日:2010-07-01

    申请号:MX2010005770

    申请日:2008-11-25

    Applicant: QUALCOMM INC

    Abstract: La interferencia que ocurre durante la comunicación inalámbrica puede ser administrada por la reutilización de tiempo de sub-.cuadro; un método, aparato, y medio de comunicación determinan las secuencias de compuerta del sub-cuadro de interferencia; la compuerta de transmisión en un punto de acceso de casa es ajustado al determinar una primera secuencia de compuerta de un primer punto de acceso no planeado; una segunda secuencia de compuerta es seleccionada con base en la primera secuencia de compuerta, en donde la primera y segunda secuencias de compuerta no interfieren; las señales son transmitidas de acuerdo con la segunda secuencia de compuerta desde un segundo punto de acceso no planeado a una terminal de acceso asociada.

    46.
    发明专利
    未知

    公开(公告)号:DE69841489D1

    公开(公告)日:2010-03-25

    申请号:DE69841489

    申请日:1998-09-18

    Applicant: QUALCOMM INC

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

    47.
    发明专利
    未知

    公开(公告)号:DE69841209D1

    公开(公告)日:2009-11-12

    申请号:DE69841209

    申请日:1998-06-16

    Applicant: QUALCOMM INC

    Abstract: A method for generating a higher rate channel using a set of N lower rate channels, the method comprises generating a set of N sinusoids having a corresponding set of N phase offsets with predetermined phase rotations; upconverting said set of N lower rate channels using said set of N sinusoids and phase offsets yielding a set of upconverted signals; summing said set of upconverted signals yielding a summed signal whereby the peak-to-average amplitude of said summed signal is reduced based on said phase rotations; and transmitting said summed signal. A corresponding system is also disclosed.

    49.
    发明专利
    未知

    公开(公告)号:DE69739389D1

    公开(公告)日:2009-06-10

    申请号:DE69739389

    申请日:1997-05-28

    Applicant: QUALCOMM INC

    Abstract: A method for demodulating a received signal comprising complex multiplying (202,204) the received signal by a complex pseudonoise code to produce a complex pseudonoise despread signal (XI,XQ); filtering (214) the complex pseudonoise despread signal to provide a complex filtered pilot signal; multiplying (210) the complex pseudo-noise despread signal by a first demodulation code to provide a first complex demodulated data signal; and phase rotating and scaling (216,218) the first complex demodulated clara signal in accordance with the complex-filtered pilot signal to provide a first soft decision data.

    50.
    发明专利
    未知

    公开(公告)号:DE69937643T2

    公开(公告)日:2008-10-30

    申请号:DE69937643

    申请日:1999-08-17

    Applicant: QUALCOMM INC

    Abstract: A method for limiting peak transmit power in a CDMA communication system by transmitting a first communication signal having a first high transmit power region, and transmitting a second communication signal having a second high transmit power region. A first and a second communication signal are time offset to prevent the first and second high transmit power regions from occurring simultaneously. Time shifting only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmit power regions. The time offset can be selected to align one of the first and second high transmit power regions with one of the first and second low transmit power regions. The total transmit power signal can be determined and the time offset can be selected to minimize a peak level of the total transmit power signal. The communication signals are separated into a plurality of portions and portions of the first and second communication signals are time offset to re-order the sequence of transmission of the plurality of portions.

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