單項選擇題Which of the following is the nominal output power for a GSM 900, class 4, or GSM 1800/GSM 1900, class 1, mobile station? （）

A.20W
B.2W
C.5W
D.8W
E.0.2W


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1.單項選擇題What is the advantage of using DTX for an MS? （）

A. Increases battery life
B. Better Bit Error Rate (BQRE)
C. Higher strength
D. Increased bit rate
E. Better voice quality

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

A.Increasing the number of available frequencies.
B.Introducing double BA-lists
C.Implementing half-rate vocoders.
D.Going from a 4/12 to a 3/9 reuse pattern.
E.Splitting cells.

3.單項選擇題What is used to prevent ‘ping-pong effects’, that is, rapid, successive handovers? （）

A. Discontinuous Transmission
B. Hysteresis
C. Dynamic Power Control
D. Frequency Hopping
E. Cell Load Sharing

5.單項選擇題What is the point of using a combiner? （）

A. Up to four sites can share one PCM link.
B. Several TRXs can share one antenna system.
C. The mobile can listen to two base stations at the same time.
D. Only one base station is needed per site.
E. Sending and transmitting can be performed from the same antenna.