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Ericsson ECP-383 Exam Syllabus Topics:

Ericsson Certified Associate - Radio Network Optimization Sample Questions:

1. Review the exhibit.

A new residential area has recently been built showing a lack of 3G uplink coverage as shown in the exhibit.
The terrain is flat and all the buildings in the area are 20 meters in height with no other relevant direct obstacles.
What should be applied to cells A_l and 8_1 to provide 3G service to the new area knowing that both cells have a soft handover (SHO) factor of 1.9?

A) Increase the CPICH power.
B) Change the azimuth.
C) Increase the electrical downtilt.
D) Reduce the antenna height.

2. What is a benefit of soft handover?

A) It decreases interference.
B) It ensures successful handover among detected cells.
C) It decreases channel element usage.
D) It reduces the connected user load of neighboring cells.

3. You are performing a physical parameter optimization of an LTE network with an automatic tool that uses propagation predictions. As a result, the tool estimates an increase of RSRP from cell A at a particular location.
In this scenario, what has happened?

A) The antenna pattern of cell A has changed.
B) Signal attenuation from the transmitter to the location has increased.
C) Soft handover factor has increased.
D) The PRB utilization of cell A has decreased.

4. What are two benefits of massive MIMO? (Choose two.)

A) It increases SINR by focusing a signal toward an individual user.
B) It serves many spatially separated users in the same time and frequency.
C) It serves many users in the same time and frequency with a single element antenna.
D) It increases throughput by allowing access to larger spectrum slices.

5. A customer is deploying VoLTE and complains about high voice drop rates and voice quality degradation at the cell edge in most LTE cells in the area. The network has a dense WCDMA coverage on the 700 MHz band and patchy LTE coverage on the 2100 MHz band.
Which two features would you activate to solve this problem? (Choose two.)

A) TTI Bundling
B) DRX
C) 256 QAM DL
D) SRVCC Handover to UTRAN

Solutions: