Radio Frequency Training Test! Trivia Quiz

40 Questions | By MerryyrreM | Last updated: Jun 27, 2019 | Total Attempts: 46

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Questions and Answers

1.

In SAE , which equipment is used to process the control plane of the S1 interface?
- A.
  
  MME
- B.
  
  SGW
- C.
  
  PDN GATEWAY
- D.
  
  PCRF
2.

How many symbols in each time slot for extended CP?
- A.
  
  5
- B.
  
  6
- C.
  
  7
- D.
  
  8
3.

Maximally how many symbols could be used for PDCCH in a sub frame？
- A.
  
  1
- B.
  
  3
- C.
  
  5
- D.
  
  7
4.

Which of the following system information are not carried by PDSCH?
- A.
  
  MIB
- B.
  
  SIB1
- C.
  
  SIB2
- D.
  
  SIB3
5.

Which of the following channels is used to indicate on the numbers of OFDMA symbols reserved for control information?
- A.
  
  PDSCH
- B.
  
  PBCH
- C.
  
  PCFICH
- D.
  
  PHICH
6.

Which measurement quantity is used for UE idle measurement?
- A.
  
  RSRP
- B.
  
  RSRQ
- C.
  
  SINR
- D.
  
  Both RSRP and RSRQ
7.

Which of following procedure is not UE idle behavior?
- A.
  
  System message reception
- B.
  
  Paging reception
- C.
  
  RS measurement
- D.
  
  Measurement report
8.

What is the period of system message update?
- A.
  
  1 hour
- B.
  
  2 hours
- C.
  
  3 hours
- D.
  
  4 hours
9.

What is the possible scenario to trigger cell selection?
- A.
  
  After UE handovers in a new cell
- B.
  
  After UE selects a new PLMN
- C.
  
  After UE establishes RRC connection
- D.
  
  After UE establishes RRC reconfiguration
10.

What modulation does LTE support for PBCH？
- A.
  
  BPSK
- B.
  
  QPSK
- C.
  
  16QAM
- D.
  
  64QAM
11.

Which of following parameters are not included in UE measurement report?
- A.
  
  Measurement ID
- B.
  
  Target cell PCI
- C.
  
  Event ID
- D.
  
  Measurement result
12.

For Enhanced Blind Handover, which of the followings are incorrect?
- A.
  
  In order to avoid the failures of blind handover
- B.
  
  UE is configured with A1 to measure the service cell before handover
- C.
  
  In the CSFB based on enhanced Blind Handover, UE is configured with B1 to measure the target system before handover
- D.
  
  Option 4
13.

What is maximum measurement result number that can be contained in one measurement report?
- A.
  
  2
- B.
  
  4
- C.
  
  6
- D.
  
  8
14.

After detect abnormal handover between cell A and cell B, which parameter should be modify?
- A.
  
  Ocn
- B.
  
  Ocs
- C.
  
  Ofn
- D.
  
  Ofs
15.

Which of following is the Necessary Handover?
- A.
  
  Coverage-based
- B.
  
  Service-based
- C.
  
  Frequency Priority-based
- D.
  
  Speed-based
16.

For measurement based CSFB, after which event does the eNodeB trigger CSFB execution?
- A.
  
  A1
- B.
  
  A3
- C.
  
  B1
- D.
  
  B2
17.

If target inter-RAT doesn't support VoIP service, what is the solution for LTE VoIP inter-RAT handover?
- A.
  
  SRVCC
- B.
  
  CSFB
- C.
  
  PS handover
- D.
  
  CCO
18.

Which of following technologies are not used only on uplink scheduling?
- A.
  
  TTI bundling
- B.
  
  64QAM
- C.
  
  Pre-allocation scheduling
- D.
  
  Virtual MIMO scheduling
19.

Which interface used for TAI and LAI mapping?
- A.
  
  S3
- B.
  
  SGs
- C.
  
  S1
- D.
  
  S8
20.

Which solution required the RIM?
- A.
  
  PS Redirection
- B.
  
  PS Blind Redirection
- C.
  
  Flash CSFB
- D.
  
  PS Handover
21.

Which PLMN will be selected by UE to attach to the network?
- A.
  
  OPLMN
- B.
  
  UPLMN
- C.
  
  RPLMN
- D.
  
  HPLMN
22.

Which signalling message is Msg3?
- A.
  
  RRC Connection Request
- B.
  
  RRC Connection Setup
- C.
  
  RRC Connection Setup Complete
- D.
  
  RRC Connection Reconfiguration
23.

Which channel is used to transmit SRB0?
- A.
  
  CTCH
- B.
  
  DTCH
- C.
  
  DCCH
- D.
  
  CCCH
24.

What is the difference between UE Initial Attach Procedure and Service Request Procedure?
- A.
  
  No RRC Connection Setup in Service Request Procedure
- B.
  
  No UE Capabilities Enquiry and Info in Service Request Procedure
- C.
  
  No S1AP Initial UE message in UE Initial Attach Procedure
- D.
  
  No RRC Connection Reestablishment in UE Initial Attach Procedure
25.

Which type of Random Access will be used for Handover process?
- A.
  
  Contention based
- B.
  
  Contention free
- C.
  
  Connection free
- D.
  
  Connection based
26.

Preamble format 0 will be applied for large cell coverage
- A.
  
  True
- B.
  
  False
27.

If no TMA in eNodeb, attenuation should be set as 11 dB.
- A.
  
  True
- B.
  
  False
28.

VSWR value can be checked by using STR VSWRTEST command but this command will interrupt service.
- A.
  
  True
- B.
  
  False
29.

After VSWR value is higher than VSWR post-processing threshold, eNodeB will shutdown Tx port and Tx port will be automatically turned on after VSWR value back to normal.
- A.
  
  True
- B.
  
  False
30.

PIM 3 causes highest interference to the wanted signal.
- A.
  
  True
- B.
  
  False
31.

1 CCE consists of 40 Resource Elements.
- A.
  
  True
- B.
  
  False
32.

Which parameter in Event A3 is used to prevent Ping-Pong handover
- A.
  
  Ocn
- B.
  
  Ofn
- C.
  
  Ofs and Ocs
- D.
  
  Hysteresis
33.

What is the impact for handover when setting large value of Ofn?
- A.
  
  If this parameter is set to a larger value, there is a higher probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may fail to access the target cells because of poor signal quality in the target cells
- B.
  
  If this parameter is set to a larger value, there is a lower probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may fail to access the target cells because of poor signal quality in the target cells
- C.
  
  If this parameter is set to a larger value, there is a lower probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may success to access the target cells because of poor signal quality in the target cells
- D.
  
  If this parameter is set to a larger value, there is a higher probability of handing over UEs to cells on the neighboring E-UTRAN frequency, but these UEs may success to access the target cells because of poor signal quality in the target cells
34.

What is the meaning of Ocs
- A.
  
  It does not take any effect in handover.
- B.
  
  It affects the probability of triggering handovers from the neighboring cell to serving cell
- C.
  
  It affects the probability of triggering handovers when setting this parameter to 0
- D.
  
  It affects the probability of triggering handovers from the serving cell to its neighboring cells.
35.

To check cross feeder or cross antenna, query command MOD TXBRANCH
- A.
  
  True
- B.
  
  False
36.

High Modulation scheme will be applied when LTE network has good channel quality
- A.
  
  True
- B.
  
  False
37.

RANK0 for 2*2 MIMO means 1 of 2 antennas is used to transmit data.
- A.
  
  True
- B.
  
  False
38.

Spatial Multiplexing can gain more reliability and diversity can gain more data rates.
- A.
  
  True
- B.
  
  False
39.

RRC reconfiguration message is used for reestablishing connection after HO failure and RLF.
- A.
  
  True
- B.
  
  False
40.

TTI bundling feature can increase probability to transmit data on PUSCH successfully.
- A.
  
  True
- B.
  
  False

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