多项选择题
A.SRVCC B.CSFB C.VOIP D.DR-VCC
A.Picocell B.Macro cell C.Microcell D.Femto E.Metrocell
A.Single-antenna port B.Transmit diversity&spatial multiplexing C.Open-loop&Closed-loop spatial multiplexing D.Multi-user MIMO
A.DL-SCH B.PCH C.MCH D.DCI
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