这需要通过信道估计获得信道状态信息。
It needs channel state information, which is obtained through channel estimation.
因此，如何获得准确的MIMO信道状态信息就成为一个关键问题。
Therefore, how to get the MIMO channel information correctly becomes a crucial problem.
因此，如何获得准确的MIMO信道状态信息就成为一个关键问题。
Therefore, how to get the MIMO channel information correctly becomes a crucial problem.
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