HCS-5G RF Advanced V1.0 H35-462-ENU Real Questions

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1. The length of the TTI scheduled in 5G NR is 1 time slot.


2. NSA networking Option3X scenario, the SIB broadcast message content of the 5G cell is sent to the UE through the 4G cell


3. Electrically adjustable antenna refers to adjusting the phase of the antenna element through electrical signals, changing the horizontal component and vertical component of the signal, thereby changing the antenna coverage distance


4. The Ss channel power of the NR cell will be dynamically adjusted according to the actual environment


5. In the 5G network, for user security considerations, the NsA layer uses 5G-GUTI instead of IMSI as the user’s temporary ID


6. The relevant configuration parameters of sRs in NR are only user-level, not cell-level.


7. The NR standard supports the PDCCH channel to occupy up to 3 symbols in the time domain


8. The purpose of PRACH power control is to ensure that the NR random access success rate is guaranteed, the UE transmits the preamble with the smallest possible power, reduces the interference to the neighboring cell and enables the UE to save power.


9. In the NSA network, when the NR is dropped, it will be recorded on the 5G network side.


10. NR uses the A3 event to trigger PSCe11 changes.


11. The change of the secondary cell in the SgNB station uses the SBNB Modification process.


12. The scheduling priority of retransmission data is higher than the scheduling priority of initial transmission data.


13. The scheduling function of the NR network is mainly implemented at the RRC layer


14. SRS power control is mainly used for uplink channel estimation and uplink timing to ensure its accuracy.


15. The optimization principle of NR system coverage problem is to first optimize SS SINR and then optimize SS RSRP.


16. In the NSA network, the excessively high release ratio of the auxiliary station is caused by the poor NR coverage.


17. When the PScel1 change fails, the UE will undergo an RRC re-establishment process.


18. The bandwidth of a CCE in NR is 3 RBs.


19. When the UE under the NSA architecture is attached to the network, it can be directly attached to the NR network.


20. The modulation mode of PUCCH and PDCCH channels in NR is QPSK


21. Uplink timing enables UEs that are different from gNodeB to send uplink data to reach gNodeB at the same time


22. gNodeB needs to consider channel quality information when performing resource scheduling


23. The RE power of the PBCH channel in the NR system will be biased based on the cell reference power ReferencePwr configuration


24. The primary solution for NR cell coverage in the Ye area is to reduce the cell transmit power.


25. In NsA networking, if the terminal side receives a release instruction from the network side, it may be that the 5G side initiates the release, or the 4G side initiates the release.


26. In every TTI scheduling, the scheduling priority of the control plane information is absolutely higher than that of the data plane.


27. If the UE does not get a response from the gNodeB after sending the preamble, it will climb. Power to send the preamble again


28. gNodeB adjusts PUSCH and PUCCH power through TPC control.


29. For some NR measurement indicators, the U2020 network management system can support indicator reporting at the shortest 1minute level.


30. In the access anchor policy, if the "cell barred" status is set to "barred", the UE cannot occupy the cell resources.


31. In 5G RAN2.1, U2020 can support BTS5900 and 3900 network element management at the same time.


32. The primary solution for the existence of cross-area coverage in NR cells is to reduce the cell’s transmit power.


33. Window Size is the size of the TCP window buffer. The larger the window, the stronger the resistance to large delays and packet loss.


34. The modulation modes of PUCCH and PDCCH channels in NR are both QPSK.


35. The measurement report that triggers the change of the secondary station in the NSA scenario is transmitted to NR through LTE.


36. NR network using CQI quality reflects the channel status, the UE reports to gNB the CQI is Judgment by measuring the pilot SINR quantized obtained.


37. NR ‘s DC dual connectivity only exists in the architecture where the core network is EPC.


38. When the PScell change fails, the UE will undergo an RRC re-establishment procedure.


39. The NR system can configure at most 2 BWPs for the UE at the same time.


40. Massive MIMO features mainly improve NR system capacity and cell coverage, while improving user experience


41. The maximum number of cells reported in the A3 measurement report in the NR system is fixed at 4.


42. NR logical channel is divided into control channel and traffic channel according to the type of data transmission.


43. One or more QoS flows may be established in each PDU session of the 5G terminal.


44. The maximum modulation mode defined in the 3GPP RE115 version is 256QAM


45. The definitions of the logical channels and transmission channels of the 5G air interface are exactly the same as those of the 4G air interface


46. The 5GRAN2.1 version of the NR system can configure up to 2 BWPs for the UE at the same time.


47. when the air interface employed. 4 when the stream transmission, only one treatment may be codeword.


48. The UPF downlink data packet needs encapsulating QFI header, GNB according QFI information packet to DRB do mapping


49. There is no difference between the channel management algorithm for PDCCH in 5G between NsA networking and SA networking


50. The redirection process has a lower business interruption delay than the switching process


51. During the scheduling process, the base station needs to obtain the data buffer status of the PDCP layer.


52. CQI reporting needs to be used in both uplink and downlink scheduling


53. Downlink PDCCH power adjustment algorithm only takes effect for users in remote locations


54. PUSCH and PUCCH power control commands use the same TPC command.


55. In the NR peak test scenario, we need to ensure that the number of CSI-RS ports cannot be less than the maximum number of MIMO streams of the terminal


56. In the live network, we recommend that all cells adopt the configuration parameters in the peak rate scenario to improve user experience.


57. The 5G version of 3GPP re115 only defines the interoperability from 5G to 4G, and does not define the interoperability from 5G to 2/3G.


58. The board log of gNodeB also contains performance index data


59. In the NSA network, as long as there is a call drop on the 4G side, then the 5G side must also drop the call


60. The reference power of the downlink cell refers to the maximum transmit power of each radio frequency channel.


61. In the 5G peak test, the higher the downlink RSRP, the higher the peak rate.


62. Interoperability process between 4G and 5G idle states through cell reselection.


63. 5G NAS process management includes two parts: registration management and session management.


64. The SDAP protocol layer does not need to be used for the air interface under 5G NSA networking


65. When the 5G SA terminal starts searching for SSB, it searches according to the step length of channe1 raster.


66. A certain measurement index of gnodeb can belong to different measurement subsets.


67. The basic performance index reporting period in gNodeB is 1 hour.


68. Only the TDD system can support the uplink non-scheduling function in MR.


69. MU-MIM0 technology is used to increase the peak rate of a single user.


70. The NR standard supports the PDCCH channel to occupy up to 3 symbols in the time domain.


71. The traffic limit reporting function in NSA networking is a function that must be turned on in the network.


72. PRACH channel only supports open loop power control


73. The initial power of PUSCH when carrying Msg3 is greater than the initial power when carrying other data


74. SRB3 connection is only used for NSA networking


75. After the UE sends the preamble and does not get a response from gnodeb, it will increase the power and send the preamble again


76. The UE obtains the index information of the current SSB beam through the MIB message.


77. The punishment in the handover process is the punishment for the failure of the handover preparation, not the punishment for the execution failure.


78. If the serving cell is not allocated to the neighboring cell relationship of a certain cell, the handover to this cell will fail.


79. There is no difference between all scheduling-related algorithms in NSA networking and SA networking


80. The network slicing function is only for the core network, and wireless and transmission do not support slicing.


81. Because the terminal does not need time-frequency tracking in the 5G low-frequency scene, there is no need for PT-RS in the low-frequency scene


82. In the 5G network, for user security considerations, the NSA layer uses 5G-GUT1 instead of IMSI as the user’s temporary ID.


83. In the NSA network, we can use the CI interface between enodeb and gnodeb for data distribution


84. In the RAN3.0 version, CSI-RS for beam management is not supported in low frequency scenarios.


85. In RAN3.0 version, for TDD 5G network, supports only case C of SSB beam pattern.


86. In SA networking, the mobility between neighboring cells with the same frequency can use the redirection process.


87. As long as the SSB frequency or SCS between the serving cell and the neighboring cell is different, then the terminal’s measurement of the neighboring cell is an inter- frequency measurement.


88. The terminal can send a power control command to the base station to control the transmission power of the PDSCH.


89. The serving cell is not connected to the neighboring cell service of the nearby cell, indicating that the cell handover failed


90. The PDU session establishment request in 5G must be actively triggered by the UE side.


91. The uplink timing is such that under the same gNdeB, the TA (timing advance) values ​​ of all UEs are kept at 0 at all times.


92. In the window size, the larger the window, the stronger the resistance to delay


93. Which of the following NR system definition indicators are at the base station level?


94. PBCH of DMRs frequency domain position and which of the following parameters relevant?


95. In the NSA network, which of the following statistics is closest to the user’s experience rate?


96. When the NR subcarrier is configured to 30Khz, what are the number of symbols and the number of slots corresponding to each slot?


97. What is the typical value of Noise Figure (NF) for 5G CPE receiver?


98. NSA architecture, B1 threshold event is how to send UE ‘s?


99. In NR networking, in order for users to get close to the highest uplink rate, what is the minimum requirement for its MCS value?


100. In order to solve the problem of deep coverage of NR network, which of the following measures is not advisable?


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