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Updated: Aug 12, 2026
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Ericsson ECP-383 Exam Overview:
| Certification Vendor: | Ericsson |
| Exam Name: | Ericsson Certified Associate - Radio Network Optimization (ECP-383) |
| Exam Number: | ECP-383 |
| Related Certifications: | Ericsson Certified Associate |
| Available Languages: | English |
| Exam Format: | Multiple choice (official format not publicly detailed) |
| Sample Questions: | Ericsson ECP-383 Sample Questions |
| Exam Way: | Computer-based exam (delivery details not publicly specified) |
| Pre Condition: | No strict prerequisites publicly specified; foundational knowledge of mobile networks recommended |
Ericsson ECP-383 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Radio Network Fundamentals | - LTE/5G system principles (high-level) - Radio access network architecture overview |
| Troubleshooting and Performance Analysis | - Performance degradation analysis - Fault identification in RAN |
| Radio Network Optimization Principles | - Parameter tuning and feature impact analysis - Optimization lifecycle and methodologies |
| Radio Network Performance Metrics | - Coverage and capacity indicators - Key KPIs (throughput, latency, accessibility) |
Ericsson Certified Associate - Radio Network Optimization Sample Questions:
1. 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) Signal attenuation from the transmitter to the location has increased.
B) Soft handover factor has increased.
C) The antenna pattern of cell A has changed.
D) The PRB utilization of cell A has decreased.
2. A customer has Identified problems In an Indoor, medium loaded, urban area of a GSM/WCDMA collocated network. The problem seems to be in the uplink. The signal level received by the problematic site is high, and the downlink signal in the problematic area is acceptable.
Which two actions would you use to troubleshoot the issue? (Choose two.)
A) Add a pico cell In the same RAT and frequency.
B) Run a passive inter-modulation (PIM) analysis.
C) Decrease base station transmission power.
D) Investigate external interference.
3. Review the exhibit.
Using a radio performance monitoring tool, you fetch counters CI and C2 and calculate KPI K for the four
15-minute ROPs in an hour. The values obtained for the CI and C2 counters and for KPI K are shown In the exhibit.
In this scenario, what is the hourly value of KPI K?
A) The value obtained for KPI K is 96%.
B) The value obtained for KPI K is 94%.
C) The value obtained for KPI K is 95%.
D) The value obtained for KPI K is 97%.
4. Which multiple access technique is used In LTE radio DL?
A) Orthogonal Frequency Division Multiple Access (OFDMA)
B) Time Division Multiple Access (TDMA)
C) Single Carrier Frequency Division Multiple Access (SC-FDMA)
D) Code Division Multiple Access (CDMA)
5. 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) The antenna was placed on a mast near the edge of a rooftop.
B) Reflective objects such as metal chains or metal ladders were placed in front of the antenna.
C) Equipment that generates electrical magnetic fields are in the same location.
D) A plastic enclosure was placed to cover the antenna.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B,D | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: B,C |
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