Huawei H35-510 問題集

質問 1：
The effects of tower amplifiers on the system are: (Multiple choice)
A. When the base station's own noise figure is small (ie, the receiving sensitivity is high) and the feeder is short, the improvement of the noise figure of the receiving system of the base station after the increase of the towering amplifier is great.
B. The tower top amplifier reduces the noise figure of the base station receiving system, thereby improving the receiving sensitivity of the base station system;
C. When the base station feeder is long and the feeder loss is large, after the tower top amplifier is increased, the noise figure improvement (reduction) of the base station receiving system is more obvious, and the uplink improvement is obvious;
D. When the noise figure of the tower top amplifier is small, the noise coefficient improvement of the base station receiving system is more obvious after the tower top amplifier is increased, and the noise figure of the tower top amplifier is too large, which may cause the noise figure of the base station receiving system to deteriorate;
正解：B,C,D

質問 2：
The multiple access method introduced by smart antenna is?
A. CDMA
B. TDMA
C. SDMA
D. FDMA
正解：C

質問 3：
Which statement is wrong about the location area?
A. A mobile user's paging message will be sent in all cells in the location area
B. A location area may include multiple BSs
C. A location area may include multiple MSCs
D. The location area setting is too large, which may lead to overload of PCH.
正解：C

質問 4：
In order to better keep up with changes in the wireless environment, the power control cycle in GSM is preferably set to 1 (0.5 seconds).
A. False
B. True
正解：A

質問 5：
When analyzing the indoor coverage effect, the loss of the building is a part that must be considered. Which of the following about the loss of the building is incorrect?
A. The aluminum wall bracket has less loss than the non-aluminum bracket.
B. The area loss of the window is generally smaller than that of the windowless area.
C. The open loss in the building is less than the loss in the wall area with the corridor
D. The average penetration loss of buildings located in urban areas is greater than that of suburban and remote areas.
正解：A

質問 6：
The base station sends the transmitted signal to the coverage area through the ___ device.
A. Power module
B. Antenna
C. Carrier frequency
D. channel board
正解：B

質問 7：
The cell reselection will be triggered when which of the following case occurs (if the C2 algorithm has not been activated, C2=C1)? (Multiple Choice)
A. MS calculates a cell (not in the same location area) C2 value exceeds the sum of the current cell C2 and the cell reselection hysteresis value for 5 consecutive seconds (if cell reselection occurs in the previous 15 seconds, cell reselection does not occur)
B. MS monitors downlink failure
C. The current service area is forbidden
D. The MS calculates that the C2 value of a cell exceeds the C2 of the current cell for 5 consecutive seconds.
E. Wireless link timeout
F. MS random access, the access attempt is still unsuccessful after the maximum retransmission
正解：A,B,C,D,F