单项选择题
A.90 B.35 C.20 D.6
A.BCCH频点 B.Ho_margin C.PBGTHreqave D.Enablesynchronization
A.语音业务:BTS-GEIUB-GTNU-GEIUT-GEIUT-GTNU-GDPUC=GTNU-GEIUA-MSC B.接口7号信令:MSC-GEIUA-GSCU-GEIUT-GEIUT-GSCU-GXPUM C.分组业务:BTS-GEIUB-GTNU-GEIUP-PCU D.Abis接口信令:BTS-GEIUB-GSCU-GXPUM