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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Quality of Service and Resource Management | 15% | - Radio resource management and optimization - QoS parameters, scheduling and admission control |
| Topic 2: Coverage and Capacity Optimization | 30% | - Capacity planning, load balancing and optimization - Interference analysis and mitigation techniques - Coverage analysis, tuning and optimization |
| Topic 3: Mobility and Handover Optimization | 20% | - Mobility robustness and optimization - Inter-RAT mobility and optimization - Handover parameters and algorithms |
| Topic 4: Advanced Optimization and SON Features | 10% | - Energy saving and advanced features - Self-Organizing Networks (SON) use cases and optimization |
| Topic 5: SRAN Performance Optimization Fundamentals | 25% | - Key performance indicators (KPIs) definition and measurement - Performance optimization principles and methodology - Network performance monitoring and analysis tools |
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NEW QUESTION # 13
Which parameter defines the PRACH format ?
Answer: A
Explanation:
The correct answer is B .
The prachConfigurationIndex defines the PRACH configuration, including the PRACH time-domain occasions and the associated PRACH format according to the PRACH configuration tables. In 5G NR, PRACH configuration is based on 3GPP-defined PRACH tables, where the configuration index maps to the PRACH format and PRACH occasion structure.
The other options have different meanings:
A). msg1-FrequencyStart defines the frequency-domain starting position of PRACH occasion resources.
C). prachRootSequenceIndex defines the root sequence used for PRACH preamble generation.
D). totalNumberOfRAPreambles defines how many random access preambles are available.
Therefore, the parameter that defines the PRACH format is:
prachConfigurationIndex.
NEW QUESTION # 14
Evaluate the impact of extended FR2 cell range on power consumption.
Answer: D
Explanation:
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.
NEW QUESTION # 15
In a 5G cell , the following parameter has been modified: lowLatencyReservation = 15 .
Which percentage of UEs will be reallocated to a higher SR periodicity group whenever the threshold for moving to a higher SR periodicity group is reached?
Answer: A
Explanation:
The correct answer is C .
In 5G uplink scheduling, SR , or Scheduling Request , is used by the UE to request uplink resources when it has data to send. SR periodicity affects uplink latency and PUCCH capacity: shorter SR periodicity gives lower latency but consumes more control-channel resources, while longer SR periodicity saves resources but increases delay.
The parameter lowLatencyReservation = 15 means 15% of the UE/resource share is reserved for the low- latency SR periodicity group. When the load threshold is reached, the remaining portion can be moved to a higher SR periodicity group.
Calculation:
100% # 15% = 85%
So the percentage of UEs that can be reallocated to a higher SR periodicity group is:
0.85 , or 85% .
NEW QUESTION # 16
A slice supporting sensors and smart meters would be categorized as:
Answer: D
Explanation:
The correct answer is A .
Sensors and smart meters are typical massive IoT use cases. They usually involve a very large number of devices sending small amounts of data, often with low mobility and low power requirements.
This type of traffic fits mMTC , or massive Machine Type Communications .
Why the other options are not correct:
URLLC is used for very low-latency and highly reliable services, such as industrial automation, remote control, or mission-critical applications.
eMBB is used for high-throughput broadband services, such as video, fixed wireless access, or enhanced mobile internet.
DNN is not a slice category. It means Data Network Name and identifies the data network the UE connects to, similar to APN in LTE.
Therefore, a slice supporting sensors and smart meters is categorized as:
mMTC.
NEW QUESTION # 17
Choose the correct statement from the options below.
Answer: D
Explanation:
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.
NEW QUESTION # 18
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