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單項選擇題

Which logical channel is used to send RACH bust on uplink and TAs on downlink？（）

A.PDTCH
B.PTCCH
C.PACCH
D.PBCCH

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單項選擇題

Which parameter is usedby GPRST unnelling protocol between GSNs to identify a PDP context？（）

A.NSAPI
B.TLLI
C.SAPI
D.TEID

單項選擇題

Which of following interface are not using CCS7 protocol？（）

A.Gn
B.Gd
C.Gs
D.Gr