單項選擇題What is system balance? （）
A. Each cell can handle the same amount of subscribers
B. The network is dimensioned for all mobile classes
C. All cells are of the same size
D. All BTSs use the same output power
E. Uplink and downlink coverage is the same
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1.單項選擇題A particular cell is expected to support 6 Erlangs of traffic at 1% Grade of Service. How many traffic channels are required?（）
A. 6
B. 13
C. 3
D. 15
E. 22
2.單項選擇題Which logical channel must be dimensioned for each cell when considering the call set-up frequency? （）
A.SACCH
B.SDCCH
C.FCCH
D.SCH
E.BCCH
