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    Apparatus and method for receiving signals in a mobile communication system using adaptive antenna array technology
    43.
    发明授权
    Apparatus and method for receiving signals in a mobile communication system using adaptive antenna array technology 有权
    在使用自适应天线阵列技术的移动通信系统中接收信号的装置和方法

    公开(公告)号：US07236744B2

    公开(公告)日：2007-06-26

    申请号：US10914461

    申请日：2004-08-09

    申请人： Chan-Byoung Chae ,  Pan-Yuh Joo ,  Seok-Hyun Yoon

    发明人： Chan-Byoung Chae ,  Pan-Yuh Joo ,  Seok-Hyun Yoon

    IPC分类号： H04B15/00

    CPC分类号： H04B7/086 ,  H04B7/0854

    摘要： A base station having at least one reception antenna generates a reception beam using a previous reception beam weight and a despread signal of a current reception signal, calculates an error value indicating a difference between the current reception signal and a desired reception signal, and calculates a current reception beam weight using the previous reception beam weight, the despread signal and the error value. The base station generates a reception beam weight step value using the error value and an output signal, calculates a difference between the previous reception beam weight and a product of the reception beam weight step value, the despread signal, and a conjugate value of the error value, as the current reception beam weight, and selects the reception beam weight step value such that the current reception beam weight becomes the optimal reception beam.

    摘要翻译： 具有至少一个接收天线的基站使用先前接收波束权重和当前接收信号的去扩展信号来生成接收波束，计算表示当前接收信号与期望接收信号之间的差的误差值，并计算出 使用先前接收波束权重的当前接收波束权重，解扩信号和误差值。 基站使用误差值和输出信号生成接收波束加权步长值，计算先前的接收波束权重与接收波束权重步长值，解扩展信号和误差的共轭值之间的差 作为当前接收波束权重，并且选择接收波束加权步长值使得当前接收波束权重变为最佳接收波束。

    System for soft handover in MIMO OFDMA mobile communication system and method thereof
    49.
    发明申请
    System for soft handover in MIMO OFDMA mobile communication system and method thereof 审中-公开
    MIMO OFDMA移动通信系统中的软切换系统及其方法

    公开(公告)号：US20050281228A1

    公开(公告)日：2005-12-22

    申请号：US11158861

    申请日：2005-06-22

    申请人： Jeong-Tae Oh ,  Won-II Roh ,  Kyun-Byoung Ko ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Pan-Yuh Joo ,  Hong-Sil Jeong ,  Sung-Ryul Yun ,  Chan-Byoung Chae

    发明人： Jeong-Tae Oh ,  Won-II Roh ,  Kyun-Byoung Ko ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Pan-Yuh Joo ,  Hong-Sil Jeong ,  Sung-Ryul Yun ,  Chan-Byoung Chae

    IPC分类号： H04B7/26 ,  H04B7/04 ,  H04B14/00 ,  H04L27/26 ,  H04W36/18 ,  H04Q7/20

    CPC分类号： H04W36/18

    摘要： Disclosed is a method for performing a soft handover in a Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system including a mobile station (MS), a serving base station (BS) and a plurality of neighbor BSs, each neighbor BS being different from the serving BS the serving BS providing a service to the MS. According to the method, the MS requests a soft handover to the serving BS when the serving BS detects that the MS must be handed over to one of the neighbor BSs, the serving BS notifies the neighbor BSs of the soft handover of the MS in response to the request for the soft handover, transmits signals to the MS using a predetermined coding scheme and a predetermined frequency region allocation scheme, and the neighbor BSs transmit signals to the MS using the predetermined coding scheme and the predetermined frequency region allocation scheme.

    摘要翻译： 公开了一种在多输入多输出（MIMO）正交频分多址（MIMO）正交频分多址（OFDMA）移动通信系统中执行软切换的方法，包括移动台（MS），服务基站（BS）和多个相邻BS ，每个邻居BS不同于服务BS，服务BS向MS提供服务。 根据该方法，当服务BS检测到MS必须切换到相邻BS之一时，MS向服务BS请求软切换，服务BS响应该MS向MS通知软切换 对于软切换的请求，使用预定的编码方案和预定的频率区域分配方案向MS发送信号，并且相邻BS使用预定的编码方案和预定的频率区域分配方案向MS发送信号。