單項(xiàng)選擇題Which unit is the BSC perform the LAPD signalling and Inband signalling(64kpbs).（）

A.GS
B.SRS
C.TRH
D.TRAU


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A.10
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D.60
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2.單項(xiàng)選擇題The following events all require an SDCCH. Which event has normally the longest holding time? （）

A. Normal updating
B. IQMSI attach/detach
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4.單項(xiàng)選擇題What is added to the MS sensitivity level to obtain the required signal strength, SSreq?（）

A. Rayleigh fading margin.
B. Rayleigh fading margin, interference margin, and body loss.
C. Rayleigh fading margin and interference margin.
D. Rayleigh fading margin and body loss.
E. Interference margin and body loss.