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

  • Exam Code: ECP-383
  • Exam Name: Ericsson Certified Associate - Radio Network Optimization
  • Updated: Aug 01, 2026
  • Q & A: 65 Questions and Answers

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Ericsson ECP-383 Exam Syllabus Topics:

SectionObjectives
Topic 1: Cellular Technologies- Mobile Network Technologies
  • 1. Performance Indicators
  • 2. Radio Interface Principles
  • 3. 2G, 3G, 4G and 5G Basics
Topic 2: Network Optimization Principles- Optimization Activities and Procedures
  • 1. Quality Improvement Techniques
  • 2. Coverage Optimization
  • 3. Optimization Workflow
  • 4. Capacity Optimization
  • 5. KPI Analysis
Topic 3: Cellular Network Fundamental Concepts- Cellular Network Architecture
  • 1. Coverage and Capacity Concepts
  • 2. Radio Access Network Fundamentals
  • 3. Radio Resource Utilization
Topic 4: Network Optimization Tools- Optimization Tool Usage
  • 1. Drive Test Analysis
  • 2. Performance Monitoring
  • 3. Troubleshooting and Reporting
  • 4. Network Data Collection

Ericsson Certified Associate - Radio Network Optimization Sample Questions:

1. A user is participating in an IR.92 compliant VoLTE call.
What is the Quality of Service Class Indicator (QCI) of the bearer that carries SIP signaling?

A) QCI 8
B) QCI 2
C) QCI 5
D) QCI 1


2. What is an advantage of using flexible numerology in New Radio (NR) 5G?

A) It maintains a more consistent overhead over a very large range of carrier frequencies.
B) It allows an alphanumeric mapping between physical data channels on coslted LTE and NR in non-standalone scenarios.
C) It provides a non defined link between subcarriers used in LTE and NR.
D) It ensures that the same subcarrier bandwidth is used in NR in both high and low frequencies.


3. 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) Reduce the hsPowerMargin parameter to make more power available for HSDPA.
C) Review the site design in consultation with the Ericsson collocation and coexistence guidelines.
D) Increase the power amplifier on the impacted collocated LTE sectors.


4. 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) Reduce the antenna height.
C) Increase the electrical downtilt.
D) Change the azimuth.


5. Which element is used in maintaining a 4G VoLTE call leg?

A) PSTN
B) BSC
C) NodeB
D) P-GW


Solutions:

Question # 1
Answer: C
Question # 2
Answer: B
Question # 3
Answer: A,C
Question # 4
Answer: D
Question # 5
Answer: C

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