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| Section | Weight | Objectives |
|---|---|---|
| Performance Troubleshooting | 20-25% | - Troubleshooting tools utilization - Common performance issues diagnosis - Root cause analysis methodologies - Optimization case studies - Network failure identification and resolution |
| SRAN Architecture and Fundamentals | 15-20% | - SRAN network architecture overview - SRAN solution components and functions - Single RAN integration principles - Radio access concepts and principles |
| Radio Network Performance Monitoring | 20-25% | - Threshold configuration and alerting - Real-time network monitoring techniques - KPI definition and measurement - Performance monitoring tools and dashboards - Performance data collection and analysis |
| Radio Network Optimization Techniques | 25-30% | - Handover optimization - Load balancing techniques - Capacity optimization strategies - Parameter tuning best practices - Interference analysis and mitigation - Coverage optimization methods |
| SRAN Optimization Tools and Reports | 10-15% | - Nokia NetAct and performance tools - Automated optimization features - Report generation and interpretation - Configuration management for optimization |
>> SRAN-Radio-Network-Performance-Optimization Learning Materials <<
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NEW QUESTION # 29
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 # 30
In the case of 5G SA, which of the following triggers the Radio Link Failure, or RLF, handling mechanism?
Answer: B
Explanation:
The correct answer is C.
In 5G SA, Radio Link Failure handling is mainly UE-driven. The UE monitors the radio link quality using lower-layer indications such as in-sync and out-of-sync indications. If the UE receives enough out-of-sync indications, it starts the relevant RLF timer, commonly associated with T310 behavior. If the link does not recover before the timer expires, the UE declares Radio Link Failure and starts recovery, such as RRC re- establishment.
The gNodeB can detect uplink problems and may release or reconfigure the UE, but the classical RLF handling mechanism is triggered at the UE side.
So the correct answer is:
UE indication timer only.
NEW QUESTION # 31
In the context of radio capacity management , what is the significance of Scheduling Request periodicity ?
Answer: A
Explanation:
The correct answer is C .
Scheduling Request , or SR , is used by the UE to request uplink resources when it has uplink data to send.
The SR periodicity defines how often the UE gets an opportunity to send this scheduling request.
A shorter SR periodicity means the UE can request uplink resources more quickly, which improves uplink latency. However, it consumes more PUCCH/control-channel resources, reducing the number of UEs that can be efficiently supported.
A longer SR periodicity saves control-channel resources and can support more connected users, but it increases uplink access delay.
Therefore, SR periodicity is important because it creates a trade-off between:
Lower latency and higher connected-user capacity.
NEW QUESTION # 32
Which of the following statements about CBRA , or contention-based random access , is correct?
Answer: B
Explanation:
The correct answer is B .
In contention-based random access , the UE chooses a random access preamble by itself from a configured pool of available contention-based preambles. This is typically used when the UE does not yet have a dedicated connection or when the network has not assigned a dedicated preamble.
Because multiple UEs may choose the same preamble at the same time, preamble collision is possible . That is why CBRA requires a contention resolution step.
Option C describes contention-free random access , not CBRA. In contention-free random access, the network assigns a dedicated preamble to the UE, so collision risk is avoided and contention resolution is not required.
Option A is not the correct CBRA principle being tested. RACH false detection can be a receiver/design issue, but it does not define the CBRA procedure.
Option D describes a possible NSA signaling behavior around access failure handling, but it is not the core correct definition of CBRA.
Therefore, the correct CBRA statement is:
The UE autonomously selects a preamble from the configured range and starts the random access procedure.
NEW QUESTION # 33
In the context of mmWave deployments , what is the primary benefit of analog beamforming ?
Answer: B
Explanation:
The correct answer is A .
In mmWave systems, beamforming is essential because FR2 signals suffer from high path loss and blockage.
Analog beamforming uses fewer RF chains than fully digital beamforming, so it is cheaper and less complex in terms of RF hardware, power consumption, and implementation. Research and industry references explain that analog and hybrid beamforming architectures reduce the number of required ADCs/RF chains compared with fully digital beamforming, lowering cost and power complexity.
However, analog beamforming has limitations. It usually forms one beam, or a limited number of beams, at a time from a panel. Supporting multiple independent simultaneous beams and more UEs per sector is more associated with digital or hybrid beamforming, not pure analog beamforming.
Therefore, the primary benefit is:
Low cost and low complexity for coverage at higher mmWave bands.
NEW QUESTION # 34
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