77、TDLTE小区中，（）是TM3和TM8的转换门限
A.rankThresholdBetweenRank1AndRank2
B.dlSinrThresholdBetweenCLMimoTwoLayersAndOneLayer
C.dlSINRThresholdbetweenRank1BeamformingAndTM3
D.dlSINRThresholdbetweenRank2BeamformingAndTM3
正确答案是D