公开(公告)号：US20070195900A1

公开(公告)日：2007-08-23

申请号：US11698803

申请日：2007-01-26

申请人： Dong-Lae Lee ,  Jong-Han Lim

发明人： Dong-Lae Lee ,  Jong-Han Lim

IPC分类号： H04K1/10 ,  H04B1/00

CPC分类号： H04B1/712 ,  H04B7/0848 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04L25/0206 ,  H04L25/0212

摘要： Provided is an apparatus and method for controlling a dynamic range of weight vectors according to a combining method to fit an input range of a channel decoder in a mobile station of a high rate packet data system. The apparatus includes a channel estimator for receiving pilot symbol from a base station and calculating channel estimation values of receive paths of each antenna, an autocorrelation matrix calculator for calculating autocorrelation matrix values in every chip duration from the received pilot symbols, a weight vector calculator for calculating weight vectors using the channel estimation values and/or autocorrelation matrix values according to a combining method of the multi-path received signals, a controller for outputting modified weight vectors by fitting an input range of a channel decoder according to the combining method, and a combiner for outputting the combined signal by multiplying descrambled received signals by the modified weight vectors. Accordingly, even if various combining methods are used when data is received in a mobile station of a high rate packet data system using the CDMA scheme, performance degradation of a channel decoder can be minimized.

摘要翻译： 提供了一种用于根据组合方法来控制加权矢量的动态范围的装置和方法，以将高通率分组数据系统的移动台中的信道解码器的输入范围拟合。 该装置包括用于从基站接收导频符号并计算每个天线的接收路径的信道估计值的信道估计器，用于从接收到的导频符号计算每个码片持续时间内的自相关矩阵值的自相关矩阵计算器，用于 使用所述多路径接收信号的组合方法，使用所述信道估计值和/或自相关矩阵值来计算权重向量;控制器，用于通过根据所述组合方法拟合信道解码器的输入范围来输出修改的权重向量;以及 组合器，用于通过将经解扰的接收信号乘以经修改的权重向量来输出组合信号。 因此，即使在使用CDMA方式的高速率分组数据系统的移动站中接收数据时，即使使用各种组合方法，也可以使信道解码器的性能下降最小化。

公开(公告)号：US07746942B2

公开(公告)日：2010-06-29

申请号：US11698803

申请日：2007-01-26

申请人： Dong-Lae Lee ,  Jong-Han Lim

发明人： Dong-Lae Lee ,  Jong-Han Lim

IPC分类号： H04K1/10 ,  H04L27/00

CPC分类号： H04B1/712 ,  H04B7/0848 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04L25/0206 ,  H04L25/0212

摘要： Provided is an apparatus and method for controlling a dynamic range of weight vectors according to a combining method to fit an input range of a channel decoder in a mobile station of a high rate packet data system. The apparatus includes a channel estimator for receiving pilot symbol from a base station and calculating channel estimation values of receive paths of each antenna, an autocorrelation matrix calculator for calculating autocorrelation matrix values in every chip duration from the received pilot symbols, a weight vector calculator for calculating weight vectors using the channel estimation values and/or autocorrelation matrix values according to a combining method of the multi-path received signals, a controller for outputting modified weight vectors by fitting an input range of a channel decoder according to the combining method, and a combiner for outputting the combined signal by multiplying descrambled received signals by the modified weight vectors. Accordingly, even if various combining methods are used when data is received in a mobile station of a high rate packet data system using the CDMA scheme, performance degradation of a channel decoder can be minimized.

摘要翻译： 提供了一种用于根据组合方法来控制加权矢量的动态范围的装置和方法，以将高通率分组数据系统的移动台中的信道解码器的输入范围拟合。 该装置包括用于从基站接收导频符号并计算每个天线的接收路径的信道估计值的信道估计器，用于从接收的导频符号计算每个码片持续时间内的自相关矩阵值的自相关矩阵计算器，用于 使用所述多路径接收信号的组合方法，使用所述信道估计值和/或自相关矩阵值来计算权重向量;控制器，用于通过根据所述组合方法拟合信道解码器的输入范围来输出修改的权重向量;以及 组合器，用于通过将经解扰的接收信号乘以经修改的权重向量来输出组合信号。 因此，即使在使用CDMA方式的高速率分组数据系统的移动站中接收数据时，即使使用各种组合方法，也可以使信道解码器的性能下降最小化。