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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 layoutcorrect

D.

Power splitter: Split one signal into two or more channels (three-way, four-way) output

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

Which of the following carrier bandwidths does LTE support? (multiple choice)

A.

40M

B.

5M

C.

15M

D.

20M

During the test, the bit error rate below 20% is normal.

A.

True

B.

False

The uplink interference problem is judged by checking the RSRP of each cell.

A.

True

B.

False

When doing PCI planning, what principles need to be met? (multiple choice)

A.

Avoid cells with overlapping coverage areaspcimold3same

B.

Of all the districtsPCIAll different

C.

Cells that meet the reuse degreePCICan be the same

D.

Need for cells with overlapping coverage areasPCImold3same

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

The LTE system requires an uplink synchronization system. Uplink synchronization is mainly to eliminate interference between different users in a cell.

A.

True

B.

False

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.

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

B.

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.

C.

ANR function can completely replace the neighboring area planning of the initial network

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