A、R7
B、R8
C、R9
D、R10
A、A.R7 B、B.R8 C、C.R9 D、D.R10
A、R7 B、R8 C、R9 D、R10
A、R8 B、R9 C、R10 D、R11
A、R99 B、R4 C、R5 D、R6
A、A、引入UTRAN B、B、引入TrFO技术 C、C、控制与承载分离 D、D、IMS
A、ITU B、3GPP C、3GPP2 D、IEEE
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