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    Amplitude limitation in CDMA system
    1.
    发明授权
    Amplitude limitation in CDMA system 失效
    CDMA系统的幅度限制

    公开(公告)号：US06266320B1

    公开(公告)日：2001-07-24

    申请号：US09056651

    申请日：1998-04-08

    申请人： Bo Hedberg ,  Bo Hermansson ,  Christian Nyström ,  Georg Frank

    发明人： Bo Hedberg ,  Bo Hermansson ,  Christian Nyström ,  Georg Frank

    IPC分类号： H04J1100

    CPC分类号： H04B1/707 ,  H04B1/62 ,  H04B2201/70706

    摘要： In a telecommunications network that employs a CDMA scheme, the amplitude associated with each independent CDMA carrier is digitally limited, thereby limiting the peak-to-average power ratio. This, in turn, is accomplished by measuring the instantaneous amplitude for the in-phase and quadrature signals that make up each CDMA carrier, deriving a maximum amplitude based on the instantaneous amplitude measurements, and then deriving one or more scaling factors based, in-part, on maximum amplitude. The one or more scaling factors are then applied to the in-phase and quadrature signals, which are subsequently filtered, combined and modulated by a corresponding CDMA carrier frequency.

    摘要翻译： 在采用CDMA方案的电信网络中，与每个独立的CDMA载波相关联的振幅受到数字限制，从而限制了峰均功率比。 这又通过测量构成每个CDMA载波的同相和正交信号的瞬时幅度来实现，基于瞬时振幅测量导出最大振幅，然后基于在一个或多个比例因子， 部分，最大振幅。 然后将一个或多个缩放因子应用于同相和正交信号，其随后被相应的CDMA载波频率滤波，组合和调制。

    Device for Noise Reduction
    2.
    发明申请
    Device for Noise Reduction 审中-公开
    降噪装置

    公开(公告)号：US20080170647A1

    公开(公告)日：2008-07-17

    申请号：US11571621

    申请日：2005-07-05

    申请人： Bo Hermansson ,  Mathias Johansson

    发明人： Bo Hermansson ,  Mathias Johansson

    IPC分类号： H04B1/10

    CPC分类号： H04B1/10 ,  H04B1/707

    摘要： Device for reducing noise in a radio receiver, which radio receiver comprises a transformer (30) having a reference voltage input (20), a radio signal input at a first transformer side, and a radio signal output at a second transformer side, an A/D converter (40) being connected to said second transformer side, wherein a first bandpass filter (50) is connected between said second transformer side and said A/D converter.

    摘要翻译： 一种用于降低无线电接收机噪声的装置，该无线电接收机包括具有参考电压输入（20）的变压器（30），在第一变压器侧输入的无线电信号和在第二变压器侧输出的无线电信号，A / D转换器（40）连接到所述第二变压器侧，其中第一带通滤波器（50）连接在所述第二变压器侧和所述A / D转换器之间。

    BASE STATION FOR MOBILE COMMUNICATION SYSTEM
    3.
    发明申请
    BASE STATION FOR MOBILE COMMUNICATION SYSTEM 失效
    移动通信系统基站

    公开(公告)号：US20090017869A1

    公开(公告)日：2009-01-15

    申请号：US10599324

    申请日：2005-03-23

    申请人： Bo Hermansson ,  Anders Jarleholm ,  Johnny Hederoth ,  Thomas Bengt Lejon ,  Mathias Johansson ,  Orjan Fall

    发明人： Bo Hermansson ,  Anders Jarleholm ,  Johnny Hederoth ,  Thomas Bengt Lejon ,  Mathias Johansson ,  Orjan Fall

    IPC分类号： H04B1/38

    CPC分类号： H04W88/08 ,  H04W16/20

    摘要： A base station for a WCDMA telecommunications network, intended for use in indoor environment to enhance coverage and increase capacity. The base station is designed according to a modular concept, and includes a base station unit having an interface for connection to a power supply, a radio network contoller, and to an antenna, said base station unit having a sandwich structure comprising a rigid metal back plate, a rigid metal front plate, and a main circuit board attached intermediate said back plate and front plate, wherein said main circuit board is cooled by means of self-convection of said back plate and said front plate.

    摘要翻译： 用于WCDMA电信网络的基站，旨在用于室内环境以增强覆盖和增加容量。 该基站是按照模块化的方式进行设计的，并且包括一个具有用于连接电源的接口的基站单元，一个无线电网络控制器和一个天线，所述基站单元具有夹层结构，该夹层结构包括刚性金属背 板，刚性金属前板和安装在所述背板和前板之间的主电路板，其中所述主电路板通过所述背板和所述前板的自对流而被冷却。