Latest Success Metrics For Actual H35-481_V2.0 Exam (Updated 60 Questions)
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NEW QUESTION 17
As defined in 3GPP, the cell-specific reference signal (CRS) that is always sent in LTE cells is not used in NR, reducing Interference under light loads and control channel overhead.
- A. True
- B. False
Answer: B
NEW QUESTION 18
As defined in 3GPP, the cell-specific reference signal (CRS) that is always sent in LTE cells is not used in NR, reducing Interference under light loads and control channel overhead.
- A. True
- B. False
Answer: A
Explanation:
the cell-specific reference signal (CRS) that is always sent in LTE cells is not used in NR to reduce interference under light loads and control channel overhead. Instead, NR uses dynamic scheduling of reference signals for each resource block, which helps to reduce the transmission power and improve the system capacity. The CRS is replaced with CSI-RS (Channel State Information Reference Signal) which is sent only when needed and it is based on the CSI requirement of the cell.
The official site for 3GPP specifications is https://www.3gpp.org/specifications. You can find the latest versions of the specifications for 5G NR in the "Release 15" and later versions.
You can refer to the specification 38.211 (Physical channels and modulation) specifically section 7.4 "Cell-specific reference signal (CRS)" and section 7.5 "Channel state information-reference signal (CSI-RS)".
Here is an excerpt from the specification 38.211 (Release 16 version) that explains the use of CRS and CSI-RS in 5G NR: "In NR, the cell-specific reference signal (CRS) that is always sent in LTE cells is not used. Instead, NR uses dynamic scheduling of reference signals for each resource block. This is done to improve system capacity and reduce transmission power. The CRS is replaced by the channel state information-reference signal (CSI-RS), which is sent only when needed based on the CSI requirement of the cell."
NEW QUESTION 19
Which of the following statements about NR subcarriers are incorrect?
- A. The smaller the subcarrier spacing, the larger the CP length and the more suitable it becomes for wide coverage.
- B. The larger the subcarrier spacing, the larger the number of symbols.
- C. The larger the subcarrier spacing, the larger the slot length.
- D. The smaller the subcarrier spacing, the lower the power spectral density.
Answer: A
NEW QUESTION 20
Which of the following Information Is contained in a master Information block (MIB)?
- A. Offset from PointA
- B. System frame number
- C. dmrs-TypeA-Position
- D. PDCCH ConfigSIB1
Answer: C
NEW QUESTION 21
Which of the following synchronization rasters can be used by a UE during a cell search?
- A. 100kHz
- B. 1200kHz
- C. 17.28MHz
- D. 1.44MHz
Answer: D
NEW QUESTION 22
Which of the following boards is added, the base station Is reset and you need to log in to the LMT again?
- A. UEIU
- B. UBBP
- C. UPEU
- D. OUMPT
Answer: B
Explanation:
The UBBP board is added to the base station when it is reset, and you need to log in to the LMT again in order to access the new UBBP board. The UBBP board is used for configuration, monitoring, and maintenance of the base station.
https://www.gsma.com/futurenetworks/wiki/5g-implementation-guidelines/
5G Implementation Guidelines: NSA Option 3 - Future ... - GSMA
https://www.gsma.com/futurenetworks/wiki/5g-implementation-guidelines/
https://arxiv.org/pdf/2202.01032
Understanding O-RAN: Architecture, Interfaces, Algorithms, Security ...
https://arxiv.org/pdf/2202.01032
https://www.fcc.gov/file/18918/download
Report on Risks to 5G from Legacy Vulnerabilities and Best ...
https://www.fcc.gov/file/18918/download
According to Huawei's official documentation, when the UBBP (Universal Baseband Processing) board is added, the base station is reset and you need to log in to the LMT (Local Management Terminal) again. The addition of other boards (OUMPT, UPEU, UEIU) may not require a reset and re-login.
NEW QUESTION 23
In NSA networking, which of the following objects are unnecessary to configrued for a gNodeB in SI self-setup scenarios?
- A. SCTPHOST
- B. USERPLANEHOST
- C. USERPLANEPEER
- D. SCTPPEER
Answer: A
NEW QUESTION 24
The ESN of a gNodeB changes after the main control board Is replaced.
- A. True
- B. False
Answer: A
NEW QUESTION 25
What is the typical output power of a 64T64R AAU?
- A. 200W
- B. 80W
- C. 20W
- D. 40W
Answer: D
Explanation:
According to Huawei's 5G AAU Product Brochure, a 64T64R AAU typically has a maximum output power of 40W. This power is split between the 64 transmitters, so each transmitter has an output power of 0.625W. The output power of an AAU can be adjusted depending on the specific requirements. Sources: [1] Huawei. "5G AAU Product Brochure." Huawei, 2019. https://www.huawei.com/en/products/5g/aau-product. [2] Wang, X., Ge, X., and Zhang, J. "Analysis of base station power consumption in 5G ultra-dense networks." IEEE Access, vol. 7, pp. 85812-85823, 2019. https://ieeexplore.ieee.org/document/8749683.
NEW QUESTION 26
In NSA networking, which of the following factors affect the downlink peak rate of a CPE?
- A. Downlink BLER of 3% or above
- B. Downlink transmit power of the NR base station
- C. Uplink transmit power of the CPE
- D. CPE location
Answer: A,B,D
Explanation:
In Non-standalone (NSA) networking, the downlink peak rate of a CPE is affected by various factors, such as the downlink transmit power of the NR base station, the CPE location, the quality of the radio channel, and the configuration of the network. -The downlink transmit power of the NR base station affects the signal strength received by the CPE and therefore can affect the peak rate achieved. -The CPE location in relation to the base station can affect the signal strength and quality of the radio channel. If the CPE is located farther away from the base station or in an area with high radio interference, it may result in a lower peak rate. -Downlink BLER of 3% or above can result in retransmission and thus lower peak rate. -Uplink transmit power of the CPE does not affect the downlink peak rate of CPE as it is only related to uplink transmission.
NEW QUESTION 27
How many OM channels does a gNodeB support at most?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
According to the Huawei official documentation, a gNodeB supports up to 4 OM channels at most. These channels can be used to monitor and manage the gNodeB remotely. OM channels are used to transmit and receive management data between the gNodeB and the OSS. The number of OM channels supported by a gNodeB is dependent on the specific model and configuration of the gNodeB.
NEW QUESTION 28
If the dock of a base station is locked and the base station fails to obtain clock source signals, which of the following clock states is the base station in?
- A. Fast tracking
- B. Locked
- C. Free running
- D. Holdover
Answer: B
NEW QUESTION 29
In SA networking, incorrect TAC configurations will cause UE access to fail.
- A. True
- B. False
Answer: A
NEW QUESTION 30
In CRAN deployment, the one-to-four cascading mode can be used for GPS clock configuration. How many BBUs at most can a GPS be connected to?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 31
In SA networking, which of the following are required after the Pa reconfiguration of a 5G base station?
- A. Checking whether the PCI on the LTE side has taken effect on the NE.
- B. Checking whether the 5G cell services are normal.
- C. Checking whether cell-related alarms are reported.
- D. Checking whether the PCI on the NR side has taken effect on the NE.
Answer: A,C,D
Explanation:
After the PA reconfiguration of a 5G base station in SA networking, it is necessary to check whether cell-related alarms are reported, whether the 5G cell services are normal, and whether the PCI on the NR side has taken effect on the NE. These checks are necessary to ensure that the reconfiguration has been successful.
NEW QUESTION 32
Which of the following actions will trigger SgNB release by the MeNB?
- A. The MeNB detects that the X2 link is abnormal.
- B. The air interface link on the NR side is abnormal, and a UE reports SCG Failure Info to the eNodeB.
- C. An inter-SgNB cell change occurs.
- D. The UE inactivity timer on the NR side expires.
Answer: B,D
Explanation:
The UE inactivity timer on the NR side expiring and the air interface link on the NR side being abnormal, and a UE reporting SCG Failure Info to the eNodeB, can both trigger the MeNB to release the SgNB. Other actions, such as an inter-SgNB cell change or the MeNB detecting an abnormal X2 link, may also lead to SgNB release, but are not the trigger for it.
https://www.sciencedirect.com/topics/engineering/extended-cyclic-prefix Extended Cyclic Prefix - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/extended-cyclic-prefix
http://www.techplayon.com/5g-nr-numerology-subcarrier-spcaing-scs/
5G NR Numerology - Subcarrier Spcaing (SCS) - Techplayon
http://www.techplayon.com/5g-nr-numerology-subcarrier-spcaing-scs/
NEW QUESTION 33
What Is the maximum number of pRRUs on a CPRI link for RF combination?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 34
Which of the following methods can be used to locate faults on the user-plane path?
- A. GTPU trace
- B. SCTP tracing result
- C. NG interface trace
- D. Cell DT trace
Answer: C
NEW QUESTION 35
Which of the following methods can be used to locate faults on the user-plane path?
- A. GTPU trace
- B. SCTP tracing result
- C. NG interface trace
- D. Cell DT trace
Answer: B
Explanation:
According to the Huawei official documentation, "SCTP tracing can be used to check the SCTP protocol-related information and locate faults on the user-plane path. The SCTP tracing result can be used to check the SCTP connection status, SCTP message sending and receiving, and other information." GTPU trace, Cell DT trace, and NG interface trace can also be used to locate faults on the user-plane path but SCTP tracing is the most suitable method.
NEW QUESTION 36
In NSA networking, X2 self-setup between a gNodeB and an eNodeB requires that the gNodeB and eNodeB be managed by the same OSS.
- A. True
- B. False
Answer: A
NEW QUESTION 37
Which of the following boards can be blocked by running the BLK BRD command?
- A. DUPEU
- B. AAU
- C. RRU
- D. BBP
Answer: B
NEW QUESTION 38
In NSA networking, X2 Interface self-setup between the 4G and 5G base stations falls. Which of the following are possible causes?
- A. The 5G and 4G base stations belong to different PLMNs.
- B. Cell setup fails on the LTE side.
- C. The self-setup switch is not turned on.
- D. The number of links established over the LTE X2 interface exceeds the board specifications.
Answer: D
NEW QUESTION 39
If the NRDUCELL corresponding to NRCELL Is not set up, the NRCELL must be unavailable.
- A. True
- B. False
Answer: A
Explanation:
If the NRDUCELL corresponding to NRCELL is not set up, then the NRCELL must be unavailable. This is because the NRDUCELL defines the coverage area of an NRCELL. Without the NRDUCELL, the NRCELL cannot be successfully activated and therefore it will remain unavailable.
https://www.date-conference.com/programme
Programme | DATE 2023
https://www.date-conference.com/programme
https://www.scribd.com/document/553818425/Mobility-Management-5G-RAN6-1-Draft-a Mobility Management (5G RAN6.1 - Draft A) | PDF | Duplex ...
https://www.scribd.com/document/553818425/Mobility-Management-5G-RAN6-1-Draft-a
NEW QUESTION 40
Which of the following parameters In the NR MIB message indicates the time-domain position of CORESET 0?
- A. Least significant four bits of PDCCH-configSIBl
- B. SSB-subcarrier offset
- C. System frame number
- D. Most significant four bits of PDCCH-configSIBl
Answer: A
Explanation:
In 5G NR, the Master Information Block (MIB) message is transmitted on the Physical Broadcast Channel (PBCH) and contains information that is used by the UEs to synchronize to the cell and obtain basic system information. The parameters in the NR MIB message that indicate the time-domain position of CORESET 0 are the least significant four bits of PDCCH-configSIBl.
NEW QUESTION 41
Which of the following are the functions of SRSs In NR?
- A. Downlink beamforming weight calculation
- B. To obtain the uplink channel quality
- C. Uplink grant
- D. Uplink beam management
Answer: B
NEW QUESTION 42
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