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    Cell selection technique for frequency division multiple access systems
    1.
    发明专利
    Cell selection technique for frequency division multiple access systems 审中-公开
    频段多种接入系统的小区选择技术

    公开(公告)号：JP2009239914A

    公开(公告)日：2009-10-15

    申请号：JP2009094497

    申请日：2009-04-09

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： RICK ROLAND ,  WILBORN THOMAS B

    IPC: H04W24/02 ,  H04W48/16 ,  H04B1/10 ,  H04B17/00 ,  H04J1/16 ,  H04W24/00 ,  H04W48/20 ,  H04W88/02

    CPC classification number: H04W48/20 ,  H04B17/318

    Abstract: PROBLEM TO BE SOLVED: To provide means for accelerating cell selection process in wireless communication systems implementing frequency division multiple access (FDMA). SOLUTION: This disclosure is directed to power estimation techniques for use by a subscriber unit of a frequency division multiple access (FDMA) system during the cell selection process. The power estimation techniques recognize that adjacent cells, i.e., adjacent in terms of frequency, often have slight overlap. Thus, the power from a signal associated with one cell can cause power to be detected in an adjacent cell, even if no signal is actually present in the adjacent cell. In accordance with this disclosure, techniques are described for identifying, reducing or eliminating the detection of false positives in such adjacent cells. By identifying, reducing or eliminating the detection of false positives, the cell selection process can be accelerated and additional processing of false positive signals in such adjacent cells can be avoided. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供在实现频分多址（FDMA）的无线通信系统中加速小区选择过程的手段。 解决方案：本公开涉及在小区选择过程期间由频分多址（FDMA）系统的用户单元使用的功率估计技术。 功率估计技术认识到相邻小区，即频率相邻，通常具有轻微的重叠。 因此，即使在相邻小区中实际上没有信号，来自与一个小区相关联的信号的功率也可以在相邻小区中检测到功率。 根据本公开，描述了用于识别，减少或消除在这些相邻小区中的假阳性检测的技术。 通过识别，减少或消除假阳性的检测，可以加速细胞选择过程，并且可以避免在这些相邻细胞中的假阳性信号的附加处理。 版权所有（C）2010，JPO＆INPIT

    CELL SELECTION TECHNIQUES FOR FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS
    7.
    发明专利
    CELL SELECTION TECHNIQUES FOR FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS 未知

    公开(公告)号：CA2541905A1

    公开(公告)日：2005-04-21

    申请号：CA2541905

    申请日：2004-10-08

    Applicant: QUALCOMM INC

    Inventor： RICK ROLAND ,  WILBORN THOMAS B

    IPC: H04W24/02 ,  H04B1/10 ,  H04B17/00 ,  H04W48/20

    Abstract: This disclosure is directed to power estimation techniques for use by a subscriber unit of a frequency division multiple access (FDMA) system during the cell selection process. The power estimation techniques recognize that adjacent cells, i.e., adjacent in terms of frequency, often have slight overlap. Thus, the power from a signal associated with one cell can cause power to be detected in an adjacent cell, even if no signal is actually present in the adjacent cell. In accordance with this disclosure, techniques are described for identifying, reducing or eliminating the detection of fals e positives in such adjacent cells. By identifying, reducing or eliminating th e detection of false positives, the cell selection process can be accelerated and additional processing of false positive signals in such adjacent cells c an be avoided.

    MÉTODO Y APARATO PARA CANCELAR LA INTERFERENCIA PILOTO EN UN SISTEMA DE COMUNICACIÓN INALÁMBRICA
    10.
    发明专利
    MÉTODO Y APARATO PARA CANCELAR LA INTERFERENCIA PILOTO EN UN SISTEMA DE COMUNICACIÓN INALÁMBRICA 未知

    公开(公告)号：ECSP077211A

    公开(公告)日：2007-02-28

    申请号：ECSP077211

    申请日：2007-01-29

    Applicant: QUALCOMM INC

    Inventor： HOU JILEI ,  BENDER PAUL E ,  CORALLI ALESSANDRO VANELLI ,  PFISTER HENRY DAVID ,  SMEE JOHN E ,  PADOVANI ROBERTO ,  BUTLER BRIAN K ,  LEVIN JEFFREY A ,  WILBORN THOMAS B

    IPC: H04B1/707

    Abstract: Métodos y sistemas para estimar y cancelar la interferencia piloto en un sistema de comunicación inalámbrica (por ejemplo CDMA). En un método, una señal recibida comprendida de un número de instancias de señal, cada una incluyendo un piloto, es inicuamente procesada para proporcionar muestras de datos. Cada interferencia piloto de la instancia de señal puede ser estimada mediante la diseminación de las muestras de datos con una secuencia diseminadora para la instancia de señal, canalizando los datos de-diseminados para proporcionar símbolos pilotos, filtrar los símbolos pilotos para estimar la respuesta del canal a la instancia de señal, y multiplicar la respuesta del canal estimada con la secuencia de diseminación. Los estimados de la interferencia piloto debido a una pluralidad de multi-direccionales interferentes se acumulan para derivar la interferencia piloto total, la cual se resta de las muestras de datos para proporcionar muestras de datos piloto-canceladas. Estas muestras son entonces procesadas para derivar datos de-modulados para cada una de al menos una instancia de señal (deseado) en la señal recibida

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