LTE小区中，以下参数（）是TM3和TM8的转换门限
A.dlSinrThresholdBetweenCLMimoTwoLayersAndOneLayer
B.dlSINRThresholdbetweenRank1BeamformingAndTM3
C.dlSINRThresholdbetweenRank2BeamformingAndTM3
D.rankThresholdBetweenRank1AndRank2
正确答案是C