Regarding indoor distribution antennas and components, which of the following statement is wrong?
- A . The leaky cable can be regarded as a kind of slot antenna, suitable for coverage in tunnels, subways, etc.
- B . Attenuator: consuming the excessive energy of RF signal, mainly used to reduce signal level and avoid the influence of overflow
- C . Try to use "high power, less antenna" for indoor antenna layout
- D . Power splitter: Split one signal into two or more channels (three-way, four-way) output
Which of the following is not included in the survey station preparation information?
- A . Project documents
- B . Background information
- C . Existing network conditions
- D . The latest network planning base station survey table
- E . Engineering Parameter Table
Assuming other conditions are unchanged, if the power parameter PB is changed from 0 to 1, then which of the following statements is correct?
- A . Cell reference signal power is increased by 3dB.
- B . Cell reference signal power is increased by 1dB
- C . Cell reference signal power is reduced by 3dB
- D . Cell reference signal power is reduced by 1dB
Which of the following information can be observed directly through the Probe drive test tool? (Multiple choice)
- A . PUSCH, PUCCH, RACH, and sRS physical channel transmit power
- B . TM mode
- C . Number of occupied carriers
- D . UE real-time transmit power
For the following LTE neighborhood planning, which description is correct? (Multiple choice)
- A . The directly adjacent cell geographically is generally used as a neighboring area.
- B . For dense urban areas and ordinary urban areas, due to the relatively short distance between stations (0.3~1.0 km), neighboring areas should do more
- C . Because there is no sequence problem in the neighboring area of LTE, and the detection period is very short, it is only necessary to consider not missing the neighboring cells without needing to sort the neighboring cells strictly according to the signal strength.
- D . ANR function can completely replace the neighboring area planning of the initial network
If the cell radius is 90 kilometers, which of the following should be used for the PRACH preamble format?
- A . Format 1
- B . Format 2
- C . Format 3
- D . Format 4
Under the same coverage requirements, for the comparison between the adoption of f-band network and the adoption of d-band network, the number of stations required is;
- A . More
- B . Less
- C . Basically equivalent
- D . Difficult to evaluate
For the same-frequency switching scenario, which of the following parameters has little effect on the handover?
- A . ofn
- B . ocn
- C . ofs
- D . ocs
LTE can obtain various interface signaling through LMT, M2000, and drive test tools.
- A . True
- B . False
RSRP reference signal received power refers to the average signal power received by all REs of a Symbo bearer Reference Signa within the measured frequency bandwidth.
- A . True
- B . False
LTE power control does not affect the coverage and capacity of the system.
- A . True
- B . False
Which of the following events is the basis for LTE synchronous frequency switching?
- A . A1
- B . A2
- C . A3
- D . B1
Which of the following format files can the Log file be converted to? (Multiple choice)
- A . The extension is .gen and can be imported directly into the Probe.
- B . The extension is .csv and the test data is separated by a separator (such as a comma, a semicolon, a period, etc.) in the exported text file.
- C . The extension is .dlf file
- D . The extension is .docx file
The single-station verification test only needs to verify whether the cell status in the idle mode is normal.
- A . True
- B . False
In large, medium and small cities, many streets have tall buildings on both sides. To avoid time dispersion, the cell antenna azimuth of nearby base station cannot be installed on the street.
- A . True
- B . False
Regarding the over-zone, overlapping coverage control, which of the following statements is wrong?
- A . Station height control: strictly control the station height to avoid over-zone interference
- B . Station spacing control: strictly avoid overlapping coverage sites within 100m
- C . Topological structure planning: the site distribution is as uniform as possible
- D . The angle of the sector in the station should be kept as close as possible to 60 degrees, direct sparring between stations can enhance coverage
Which of the following channel or signal is used to cell PCI identification and cell search process?
- A . PDSCH
- B . PDCCH
- C . PSS/SSS
- D . PCRCH
Regarding TA planning, which of the following statements is incorrect?
- A . The TA plan of LTE should be consistent with the LA plan of 2G/3G.
- B . Currently TAL of LTE can contain up to 16 TAs
- C . The number of cells in the TA of LTE should be smaller than the number of cells in the corresponding LA of 2G/3G
- D . Each single carrier cell can belong to multiple Tas
About the inter-frequency handoff based on the coverage, receive which of the following event will start GAP (inter-frequency) measurements?
- A . A1
- B . A2
- C . A3
- D . A4
If the UE fails to switch, it is mostly characterized by dropped calls, RRC reestablishment, and so on.
- A . True
- B . False