In the drive test process, if RRC re-establishment occurs, it is judged that the random access failure of the UE is caused.

Answer(s): B

Which of the following are the design principles of LTE tracking area? (Multiple choice)

A base station can only belong to one tracking area
The concept of keeping the same tracking area for the LTE access network and core network
When the UE is in an idle state, the core network can know the tracking area where the UE is located
When a UE in an idle state needs to be paged, it must be paged in all cells in the tracking area where the UE is registered
In the LTE system, the location update signaling caused by the location change should be minimized

Answer(s): B,C,D

Which of the following factors are the base station receiver sensitivity related to? (multiple choice)

Answer(s): A,C,D

Before the cluster optimization test, the target area must be divided into clusters.
Which of the following statements are correct? (Multiple choice)

The cluster division should span different areas of the test (planning) full coverage business
Make full use of the terrain (mountains and rivers)
Refer to the existing cluster division for network engineering maintenance
When dividing the cluster, the drive test in each cluster can be completed in one day, usually about 6 hours for one drive test

Answer(s): B,C

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