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    Downlink transmission power control scheme for mobile communication system using site diversity
    9.
    发明授权
    Downlink transmission power control scheme for mobile communication system using site diversity 失效
    下行链路传输功率控制方案，用于移动通信系统采用现场分集

    公开(公告)号：US5933782A

    公开(公告)日：1999-08-03

    申请号：US903025

    申请日：1997-07-29

    申请人： Etsuhiro Nakano ,  Takehiro Nakamura ,  Koji Ohno ,  Takaaki Sato

    发明人： Etsuhiro Nakano ,  Takehiro Nakamura ,  Koji Ohno ,  Takaaki Sato

    IPC分类号： H04B7/005 ,  H04B1/00

    CPC分类号： H04W52/40 ,  H04W52/367

    摘要： A downlink transmission power control scheme for a mobile communication system using the site diversity, which carries out a primary downlink transmission power control using a primary control signal which is transmitted from the mobile station and terminated at each base station, and an additional downlink transmission power control using additional control signals which are transmitted from the base station control station to the base stations. The additional downlink transmission power control may also use a secondary control signal which is transmitted from the mobile station and terminated at the base station control station. The primary downlink transmission power control can be carried out during a non-site diversity period while the additional downlink transmission power control is carried out during the site diversity period, or the primary downlink transmission power control and the additional downlink transmission power control can be both carried out during the site diversity period.

    摘要翻译： 一种使用现场分集的移动通信系统的下行链路发送功率控制方案，其使用从移动台发送并终止于各基站的主控制信号进行主下行链路发送功率控制，以及附加下行链路发送功率 使用从基站控制站向基站发送的附加控制信号进行控制。 附加的下行链路发送功率控制也可以使用从移动台发送并终止于基站控制站的辅助控制信号。 主要下行链路发送功率控制可以在非站点分集周期期间执行，而在站点分集周期期间执行附加下行链路发送功率控制，或者主下行链路发送功率控制和附加下行链路发送功率控制可以两者 在现场多样化期间进行。

    Coherent detector and a coherent detection method for a digital communication receiver
    10.
    发明授权
    Coherent detector and a coherent detection method for a digital communication receiver 失效
    相干检测器和数字通信接收机的相干检测方法

    公开(公告)号：US5692015A

    公开(公告)日：1997-11-25

    申请号：US553464

    申请日：1995-11-28

    申请人： Akihiro Higashi ,  Fumiyuki Adachi ,  Koji Ohno ,  Mamoru Sawahashi

    发明人： Akihiro Higashi ,  Fumiyuki Adachi ,  Koji Ohno ,  Mamoru Sawahashi

    IPC分类号： H04L7/08 ,  H04L25/02 ,  H03D1/00 ,  H04L27/06

    CPC分类号： H04L25/0236 ,  H04L25/0212 ,  H04L25/0232 ,  H04L7/08

    摘要： A coherent detection method including a step of estimating a transfer function of a propagation path using pseudo-pilot signals which consist of some information symbols adjacent to pilot signals. The information symbols in the pseudo-pilot signals are assumed to be known. The method includes the steps of estimating the transfer functions using the pilot signals, carrying out interpolation coherent detection of the information symbols using the estimated transfer functions, storing the detection results as the pseudo-pilot signals, reestimating the transfer functions associated with the information symbols corresponding to the pseudo-pilot signals by using the pseudo-pilot signals and the corresponding received signal under the assumption that the pseudo-pilot signals have a known correct pattern, and carrying out the interpolation coherent detection of the individual information symbols by using the transfer functions obtained by the reestimation. This makes it possible to estimate the transfer function at high accuracy with a small number of symbols per pilot signal, thereby improving the detection characteristics.

    摘要翻译： PCT No.PCT / JP95 / 01229 Sec。 371日期：1995年11月28日 102（e）1995年11月28日日期PCT 1995年6月21日PCT PCT。 公开号WO95 / 35615 日期1995年12月28日一种相干检测方法，包括使用由与导频信号相邻的一些信息符号组成的伪导频信号来估计传播路径的传递函数的步骤。 伪导频信号中的信息符号被认为是已知的。 该方法包括以下步骤：使用导频信号估计传递函数，使用估计的传递函数执行信息符号的内插相关检测，将检测结果存储为伪导频信号，重新估计与信息符号相关联的传递函数 在伪导频信号具有已知正确模式的假设下，通过使用伪导频信号和相应的接收信号对应于伪导频信号，并且通过使用传输来执行个体信息符号的内插相关检测 通过重新获得的功能。 这使得可以以每个导频信号的少量符号高精度地估计传递函数，从而提高检测特性。