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Worksheets5G Optimization Analysis Quiz
Total questions: 15
Worksheet time: 10mins
In NR, Key Indicator is divided into two measurement quantities: ( ) and ( ) .
SSB
RxLev
CSI-RS
RSRQ
Which of the following are the overall objective of coverage optimization?
Ensure a reasonable SSB coverage
Reduce ping-pong handovers
Reduce interference from neighboring cells
Ensure user access
In NR beamforming, lthe SSB and CSI-RS use ____ beams while PDSCH uses ____ beams (SRSs and PMIs).
Static, Static
Dynamic, Dynamic
Dynamic, Static
Static, Dynamic
Which of the following are the principles of coverage problem optimization?
Optimize the SS RSRP/CSI-RSRP and followed by the SS SINR/CSI SINR
Firstly optimize overshoot coverage and followed by overlapping coverage
Optimize handover zone, control overlapping coverage and avoid ping-pong handovers
Preferentially optimize the soft parameters, next, adjust hardware or site topology
Which of the following are not the cause of NR responds with an SgNB Add Reject message?
UE measurement result meets the B1 threshold
NR user-plane setup failure
Dedicated preamble allocation failure
NR cell status is abnormal.
Which of the following description about T310 timer is incorrect?
This timer is used to control the downlink recovery procedure
It starts when the UE detects a downlink out-of-synchronization
After the timer expires, the UE enters the RRC idle state
It stops when the UE detects that the physical layer link is restored
Which of the following statements are correct for TA Timer in Uplink Timing?
Uplink timing refers to a process in which the gNodeB measures the uplink signals sent by UE to obtain a timing offset, converts the timing offset into the TA command, and sends the TA command to the UE.
The UE obtains the TA command from the random access response message or MAC CE
The gNodeB sends the TA command to the UE. If the gNodeB receives an ACK message, the gNodeB starts or restarts the TA timer
In non-high-speed scenarios, advised to set this parameter to infinity
If UE always send the MR, but base station didn’t deliver the HO command, what’s the possible reason?
Missing neighbor relationship
Transmission Fault
Target cell resource not enough
Uplink radio interference
Call drops refer to abnormal releases caused by exceptions after a UE establishes a connection to the network
True
False
If the cause value carried in the SgNBReleaseRequired message is "radio connection with UE lost", what shall we check?
Check the RSRP on the cell measurement before the call drop to determine whether the problem is caused by coverage.
Check whether the SINR is less than 0 dB
Check whether cell-related alarms are reported at the corresponding time and whether the licensed number of UEs in the 5G cell is sufficient
Check whether the CCE aggregation level is fixed
If the cause value carried in the SgNBReleaseRequest message is "failure in radio interface", what should we check?
Number of uplink RLC retransmissions has reached the maximum?
t310-Expiry from the UE
RandomAccessProblem from the UE
Check whether transmission alarms related to links are reported on the LTE side
What is the primary purpose of the RRC Connection Release procedure?
To perform handover to another cell
To establish a new connection
To free up network resources
To update the UE's location
What is the main function of the T310 timer in the context of RRC procedures?
To monitor the UE's battery status
To initiate a handover process
To manage the timing of downlink recovery
To control the uplink transmission power
In the context of 5G, what does the term 'beamforming' primarily refer to?
Increasing the number of users per base station
Using multiple frequencies to transmit data
Directing radio signals towards specific users to improve signal quality
Reducing the overall power consumption of the network
