公开(公告)号：US20090274253A1

公开(公告)日：2009-11-05

申请号：US12114516

申请日：2008-05-02

申请人： Leonid KRASNY ,  Kambiz Zangi

发明人： Leonid KRASNY ,  Kambiz Zangi

IPC分类号： H04L1/02

CPC分类号： H04B7/0851 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242

摘要： A radio communication sent by a transmitter having M transmit antennas is received by a receiver having N receive antennas, where M is a positive integer greater than or equal to one and N is positive integer greater than one. Thus, N output signals, one for each receive antenna, are received. The signal transmitted from each transmit antenna includes predetermined pilot symbols known by the receiver and information symbols to be determined by the receiver. Weights for estimating each of M×N single-input/single-output channels between transmit and receive antennas are determined based on jointly processing pilot symbols received on all of the N receive antennas. The M×N channels are estimated based on the determined weights, and those estimated channels are used to determine the information symbols. An iterative procedure is used to estimate the M×N channels using a noise correlation matrix estimate and to estimate the noise correlation matrix using the M×N channel estimates.

摘要翻译： 由具有M个发射天线的发射机发送的无线电通信由具有N个接收天线的接收机接收，其中M是大于或等于1的正整数，并且N是大于1的正整数。 因此，接收每个接收天线一个N个输出信号。 从每个发送天线发送的信号包括接收机已知的预定导频符号和由接收机确定的信息符号。 基于在所有N个接收天线上接收的导频符号共同确定用于估计发射天线和接收天线之间的每个MxN单输入/单输出信道的权重。 基于所确定的权重来估计M×N信道，并且使用那些估计的信道来确定信息符号。 迭代过程用于使用噪声相关矩阵估计来估计M×N信道，并且使用M×N信道估计来估计噪声相关矩阵。