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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Radio Network Optimization Techniques | 25-30% | - Load balancing techniques - Parameter tuning best practices - Handover optimization - Capacity optimization strategies - Interference analysis and mitigation - Coverage optimization methods |
| Topic 2: Performance Troubleshooting | 20-25% | - Network failure identification and resolution - Root cause analysis methodologies - Common performance issues diagnosis - Optimization case studies - Troubleshooting tools utilization |
| Topic 3: Radio Network Performance Monitoring | 20-25% | - Performance data collection and analysis - KPI definition and measurement - Threshold configuration and alerting - Real-time network monitoring techniques - Performance monitoring tools and dashboards |
| Topic 4: SRAN Architecture and Fundamentals | 15-20% | - Single RAN integration principles - Radio access concepts and principles - SRAN solution components and functions - SRAN network architecture overview |
| Topic 5: SRAN Optimization Tools and Reports | 10-15% | - Configuration management for optimization - Automated optimization features - Nokia NetAct and performance tools - Report generation and interpretation |
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NEW QUESTION # 21
Which of the following statements does not apply to mmWave radio propagation ?
Answer: A
Explanation:
The correct answer is C .
At mmWave / FR2 frequencies , radio propagation is more challenging than in low-band or mid-band spectrum. Diffraction becomes weaker, blockage is more severe, foliage attenuation is high, and building penetration loss is significant. This is why mmWave networks usually require dense site grids, line-of-sight or near-line-of-sight paths, and strong beamforming. Industry mmWave references consistently describe high path loss, high penetration loss, and the need for directional antenna systems to compensate for these losses.
Option C does not apply because water absorption and atmospheric absorption generally become more relevant at higher frequencies, not lower. Rain, humidity, and oxygen/water-vapor absorption are important considerations for mmWave link budgets.
So the statement that does not apply to mmWave propagation is:
Low water absorption at high frequencies.
NEW QUESTION # 22
In a high-mobility network, the maximum cell size must be restricted to 33 km . Which PRACH format and restricted-set type should be used?
Answer: A
NEW QUESTION # 23
What is the role of admission control in 5G networks ?
Answer: D
Explanation:
The correct answer is D .
Admission control is responsible for deciding whether a new UE connection, bearer, service, or session can be accepted by the cell without negatively affecting existing users and services.
In 5G RAN, admission control checks available radio resources such as:
* PRB availability
* PDCCH/PUCCH capacity
* UE context capacity
* QoS requirements
* GBR or non-GBR bearer requirements
* Cell load and congestion status
It does not directly manage modulation schemes; that is handled by link adaptation. It also does not directly increase spectral efficiency or optimize downlink throughput, although good admission control indirectly protects user experience and avoids overload.
So the main role of admission control is:
To check whether there are enough resources for new connections.
NEW QUESTION # 24
The CB009425 feature provides several enhancements to improve the transmission link budget for VoNR, offering a better customer experience. Which statements are correct regarding this feature?
Answer: B
Explanation:
The correct answer is D.
The feature is focused on improving VoNR link robustness and user experience, especially near the cell edge or in difficult RF conditions. VoNR is sensitive to packet loss, delay, and uplink coverage limitations.
Therefore, link-budget improvement features commonly target BLER behavior, transport block sizing, and MCS robustness.
Statement A is correct because minimizing Packet Loss Rate, or PLR, directly improves VoNR speech quality and reduces mute, clipping, or robotic voice effects.
Statement B is correct because VoNR bearers can use specific initial BLER targets. A more suitable BLER target helps the scheduler choose a more robust MCS for voice traffic.
Statement C is correct because a configurable uplink minimum TBS, or Transport Block Size, helps ensure that small VoNR packets are transmitted efficiently and reliably.
Statement D is correct because MCS downgrade control can improve robustness by selecting a more conservative modulation and coding scheme for VoNR DRBs when radio conditions require it.
Therefore, all listed enhancements are part of the VoNR link-budget improvement concept:
A, B, C, and D.
NEW QUESTION # 25
Consider that the UE is performing handover from LTE to NR with the help of features CB007742 / CB008731 . Referring to the picture below, at what stage can the handover be triggered from LTE to NR?
Answer: D
Explanation:
The correct answer is C: From Stage 3 .
In LTE-to-NR mobility, the handover or redirection decision is normally based on a combination of:
LTE serving-cell signal level becoming weak enough, and
NR neighbor-cell signal level becoming strong enough.
From the diagram:
In Stage 1 , LTE is still good and NR is still weak, so LTE-to-NR HO should not be triggered.
In Stage 2 , the NR neighbor signal is improving, but the required combined LTE/NR mobility condition is not yet fully satisfied.
In Stage 3 , the NR neighbor signal has crossed the required NR threshold, while the LTE serving-cell signal has degraded enough to justify moving the UE from LTE to NR. This is the first valid stage where LTE-to- NR HO can be triggered.
In Stage 4 , NR is already clearly strong, but the handover could already have been triggered earlier in Stage 3.
NEW QUESTION # 26
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