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Ericsson ECP-383 - Ericsson Certified Associate - Radio Network Optimization

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Total 62 questions

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.

Increase the electrical downtilt.

C.

Reduce the antenna height.

D.

Change the azimuth.

What are two benefits of Carrier Aggregation? (Choose two.)

A.

to decrease the number of RRC connected users

B.

to Improve the use of scattered spectrum

C.

to increase capacity

D.

to improve coverage per carrier

You are using the Performance Measurements system for Ericsson WCDMA network analysis and must use predefined counters.

On which two levels would these counters be collected? (Choose two.)

A.

the cell level

B.

the TRX level

C.

the RNC level

D.

the BSC level

Which statement is correct about network slicing?

A.

Network slicking is a splitting of end users between competing operators in small population markets.

B.

Network slicing is a customized division of a cellular network designed to allow end users to control allocation of network resources between themselves.

C.

Network slicing is a separation of network architecture between vendors in a multivendor network.

D.

Network slicing is a movement of network functions between aggregation layers to meet performance requirements for specific use cases.

What are two advantages of using the Data Forwarding at Intra-LTE Handover feature? (Choose two.)

A.

Data is received from two cells at the same time.

B.

Packet loss is minimized during handovers.

C.

TCP performance Is improved.

D.

User data can be forwarded directly between UEs over Wi-Fi.

Using a cell optimization tool, you detect a sector that takes a large amount of traffic from a distant location that is covered by other sites and is also outside of the coverage predicted for this sector.

Which physical optimization action should you perform first In this situation?

A.

Increase the antenna height and verify the result.

B.

Install TMA and verify the result.

C.

Downtilt the antenna and verify the result.

D.

Increase the transmit power and verify the result.

Performance Management Statistics have recently shown a sharp rise in received interference power on an LTE site during the busiest hours. A collocated WCDMA base station has recently acquired a new carrier and upgraded power amplifier. The upgrade correlates with the sharp rise in received interference

power.

What are two appropriate actions to solve this problem? (Choose two.)

A.

Request or perform a build audit of the newly upgraded collocated WCDMA site.

B.

Increase the power amplifier on the impacted collocated LTE sectors.

C.

Reduce the hsPowerMargin parameter to make more power available for HSDPA.

D.

Review the site design in consultation with the Ericsson collocation and coexistence guidelines.

Which two channel bandwidths are available in LTE? (Choose two.)

A.

2.8 MHz

B.

1.4 MHz

C.

30 MHz

D.

15 MHz

Several operators are using a Multi Operator Core Network (MOCN) with the Shared LTE RAN feature. Which element is shared by the operators in this scenario?

A.

eNodeB

B.

IMS

C.

MME

D.

SGW

After the installation of a new LTE antenna on a roof top, UL interference power for that sector is observed.

In this scenario, which two situations would cause the interference? (Choose two.)

A.

Equipment that generates electrical magnetic fields are in the same location.

B.

The antenna was placed on a mast near the edge of a rooftop.

C.

A plastic enclosure was placed to cover the antenna.

D.

Reflective objects such as metal chains or metal ladders were placed in front of the antenna.