單項(xiàng)選擇題A cell has 3 TRUs with an SDCCH/8 configuration. What is themaximum number of telephone calls it can support simultaneously with ahalf-rate vocoder? （）

A. 22
B. 44
C. 8
D. 3
E. 46


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1.單項(xiàng)選擇題How many ARFCNs can an operator use if allocated 15 MHz uplink and 15 MHz downlink (minus one for guardband)? （）

A.14 ARFCNs
B.15 ARFCNs
C.29 ARFCNs
D.75 ARFCNs
E.74 ARFCNs

2.單項(xiàng)選擇題Which of the following will not increase system capacity? （）

A. Increasing the number of available frequencies.
B. Changing the modulation scheme.
C. Implementing half rate vocoders
D. Going from a 4/12 to a 3/9 reuse pattern.
E. Splitting cells

3.單項(xiàng)選擇題Which of the following is not necessary to consider when surveying a potential site?（）

A. Space for antennas
B. Frequency allocation
C. Electrical power availability
D. Contract with owner
E. Availability of transmission to the BSC

4.單項(xiàng)選擇題Which cell pattern is recommended for use with frequency hopping?（）

A. 4/12
B. 3/9
C. 7/21
D. 7/7
E. None of these

5.單項(xiàng)選擇題What does Grade of Service (GoS) mean? （）

A. Number of available subscriber services
B. Number of unsuccessful call set-ups due to congestion
C. Channel utilization
D. Number of successful call set-ups
E. Number of dropped calls