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Nokia SRAN-Radio-Network-Performance-Optimization Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Optimization and SON Features	10%	- Energy saving and advanced features - Self-Organizing Networks (SON) use cases and optimization
Topic 2: Quality of Service and Resource Management	15%	- Radio resource management and optimization - QoS parameters, scheduling and admission control
Topic 3: Mobility and Handover Optimization	20%	- Handover parameters and algorithms - Inter-RAT mobility and optimization - Mobility robustness and optimization
Topic 4: SRAN Performance Optimization Fundamentals	25%	- Performance optimization principles and methodology - Key performance indicators (KPIs) definition and measurement - Network performance monitoring and analysis tools
Topic 5: Coverage and Capacity Optimization	30%	- Capacity planning, load balancing and optimization - Coverage analysis, tuning and optimization - Interference analysis and mitigation techniques

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Nokia MN: NCSS NPS - SRAN Radio Network Performance Optimization Certification Exam | GS40-NPS-SRPER-E-S03-2510 認定 SRAN-Radio-Network-Performance-Optimization 試験問題 (Q22-Q27):

質問 # 22
What is the role of admission control in 5G networks ?

A. To optimize the downlink throughput
B. To increase the spectral efficiency
C. To check whether there are enough resources for new connections
D. To manage the modulation schemes

正解：C

質問 # 23
Evaluate the impact of extended FR2 cell range on power consumption.

A. It has no impact on power consumption.
B. It decreases power consumption due to better radio conditions.
C. It reduces power consumption by optimizing beamforming.
D. It increases power consumption because UEs need more energy to transmit uplink signals.

正解：D

解説：
The correct answer is C .
In FR2/mmWave , uplink coverage is often the limiting factor because UE transmit power is much lower than gNodeB transmit power, and mmWave propagation suffers from high path loss and blockage. Ericsson's mmWave coverage discussion also notes that high-band coverage is limited by uplink signal quality and high- band propagation characteristics.
When the FR2 cell range is extended, UEs farther from the serving cell must transmit uplink signals over a more difficult radio path. This usually requires higher UE transmit power, more robust MCS, more repetitions or retransmissions, and potentially longer uplink activity. As a result, UE battery consumption can increase.
Therefore, extended FR2 range generally:
Increases power consumption because UEs need more energy to transmit uplink signals.

質問 # 24
What is the role of admission control in 5G networks ?

A. To optimize the downlink throughput
B. To increase the spectral efficiency
C. To check whether there are enough resources for new connections
D. To manage the modulation schemes

正解：C

解説：
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.

質問 # 25
Choose the correct statement from the options below.

A. Beamforming and MIMO are the same.
B. MIMO focuses on directing the signal, while beamforming focuses on utilizing multiple paths for data transmission.
C. Beamforming and MIMO cannot be used together.
D. Beamforming focuses on directing the signal, while MIMO focuses on utilizing multiple paths for data transmission.

正解：D

解説：
The correct answer is B .
Beamforming is mainly about shaping and directing radio energy toward a UE or a target area. It improves coverage, SINR, and cell-edge performance by focusing the transmitted or received signal in a specific direction.
MIMO , or Multiple Input Multiple Output , uses multiple antenna paths to improve throughput, reliability, and spectral efficiency. MIMO can be used for spatial multiplexing, diversity, or beamforming depending on the antenna system and radio configuration.
Option A is incorrect because beamforming and MIMO are related but not the same.
Option C reverses the definitions.
Option D is incorrect because beamforming and MIMO are commonly used together, especially in Massive MIMO systems.
So the correct statement is:
Beamforming focuses on directing the signal, while MIMO focuses on utilizing multiple paths for data transmission.

質問 # 26
Which of the following statements does not apply to mmWave radio propagation ?

A. Water absorption is low at high frequencies.
B. Building penetration losses at mmWave frequencies can prevent practical outdoor-to-indoor coverage solutions.
C. Foliage and vegetation attenuation is high.
D. Diffraction loss increases with frequency.

正解：A

解説：
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.

質問 # 27
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