公开(公告)号：US07366247B2

公开(公告)日：2008-04-29

申请号：US10611425

申请日：2003-07-02

申请人： Hung-Kee Kim ,  Yong-Suk Lee ,  Sung-Jin Kim ,  Kang-Min Lee ,  Yong-Suk Moon ,  Noh-Sun Kim

发明人： Hung-Kee Kim ,  Yong-Suk Lee ,  Sung-Jin Kim ,  Kang-Min Lee ,  Yong-Suk Moon ,  Noh-Sun Kim

IPC分类号： H04B7/02 ,  H04B1/00

CPC分类号： H04B7/0636 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0689

摘要： Apparatus and method are disclosed for selecting a transmit antenna diversity scheme according to a variation speed of a fading channel in a mobile communication system. A user equipment (UE) estimates a channel response of a pilot channel by receiving a pilot channel signal from a Node B; estimates a variation speed of a fading channel by using the estimated channel response and determining a transmit antenna diversity scheme suitable to the variation speed of the fading channel; and transmits feedback information including the determined transmit antenna diversity scheme to the Node B, so that the Node B can determine a transmit antenna diversity scheme for a channel signal to be transmitted to the UE based on the transmit antenna diversity scheme information included in the feedback information. In this way, the Node B adaptively applies a transmit antenna diversity according to a channel condition.

摘要翻译： 公开了根据移动通信系统中的衰落信道的变化速度来选择发射天线分集方案的装置和方法。 用户设备（UE）通过从节点B接收导频信道信号来估计导频信道的信道响应; 通过使用估计的信道响应来估计衰落信道的变化速度，并确定适合于衰落信道的变化速度的发射天线分集方案; 并将包括确定的发射天线分集方案的反馈信息发送到节点B，使得节点B可以基于包括在反馈中的发射天线分集方案信息来确定要发送给UE的信道信号的发射天线分集方案 信息。 以这种方式，节点B根据信道条件自适应地应用发射天线分集。