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NEW QUESTION 32
What are the differences between FDD-LTE and TDD-LTE? (Multiple Choice)
- A. Voice solution
- B. Random access preamble format
- C. Reference signal
- D. Sub-frame uplink and downlink configuration
Answer: B,C,D
NEW QUESTION 33
Which of the following format files can the Log file be converted to? (Multiple choice)
- A. The extension is .dlf file
- B. The extension is .docx file
- C. The extension is .csv and the test data is separated by a separator (such as a comma, a semicolon, a period, etc.) in the exported text file.
- D. The extension is .gen and can be imported directly into the Probe.
Answer: A,C,D
NEW QUESTION 34
What are the advantages of VoLTE/eSRVCC compared to other voice solutions?
- A. Seamlessly inherit all the services provided by the original CS network
- B. Since the speech carried in IP, the through IMS provides a rich media service to more users, and can compete with OTT
- C. The network architecture changes less
- D. Implement end-to-end QoS control to ensure voice call quality
Answer: A,B,D
NEW QUESTION 35
Which of the following are the main functions of the X2 interface? (Multiple choice)
- A. Switching with 3GPP systems
- B. UE in ECM-CONNECTED state mobility within system support the context transfers from the source eNB to the target eNB
- C. E-RAB business management function
- D. Inter-cell load management
Answer: B,D
NEW QUESTION 36
For a specific UE, how many handover preparation processes can be performed at the same time?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 37
After the UE reports a large number of A3 events in the LTE system, it has not received the switch command of the eNodeB feedback. What are the possible reasons? (Multiple Choice)
- A. UL channel quality difference
- B. Target cell access failure
- C. Path Switch failed
- D. Neighbor missing
Answer: A,B,C,D
NEW QUESTION 38
LTE cell low priority reselection configuration s-NonIntraSearch is 10, Qrxlevmin is -64, Pmax is 23, in which of the following scenarios does the UE trigger different system low priority reselection measurement?
- A. RSRP≥-108dBm
- B. RSRP>-118dBm
- C. RSRP<-118dBm
- D. RSRP≤-108dBm
Answer: D
NEW QUESTION 39
When the UE is powered on or enters the coverage area from the uncovered area, which of the following PLMNs is selected for registration?
- A. EHPLMN
- B. Last registered PLMN (RPLMN)
- C. According to PLMN in the file "the User Controlled PLMN Selector with Access Technology" which saved in USIM card
- D. HPLMN
Answer: B
NEW QUESTION 40
About the inter-frequency handoff based on the coverage, receive which of the following event will start GAP (inter-frequency) measurements?
- A. A4
- B. A2
- C. A3
- D. A1
Answer: B
NEW QUESTION 41
Regarding VOLTE called anchoring, which of the following descriptions is wrong?
- A. The caller may not be anchored when the caller is not in an LTE call.
- B. refers to the process of anchoring the VoLTE user under the CS network access to the IMS network to obtain the IMS service. The process of calling the user at the CS to route the call from the CS network to the IMS network for service processing
- C. There are two anchoring methods: TMRN front and IMRN
- D. Domain selection and anchoring may occur simultaneously
Answer: B
NEW QUESTION 42
Which of the following statements are true during the establishment of an SCTP connection between an MME and an eNB? (Multiple Choice)
- A. The SCTP connection establishment request is initiated by the MME.
- B. Sending a separate UE related signal requires an SCTP stream, and the flow is not allowed to change during the UE signal connection.
- C. At least one pair of stream identifiers should be reserved, uniquely used for the S1AP basic procedure - transmitting UE related signals. Usually keep a few pairs
- D. A separate stream identifier pair should be reserved, uniquely used for the S1AP basic procedure - transmitting non- UE related signals
Answer: B,C,D
NEW QUESTION 43
Regarding blind treatment, which of the following descriptions is wrong?
- A. Blind processing generates a target cell list according to the "blind handover priority" of the neighboring cell
- B. Different triggering thresholds based on coverage-based inter-frequency and hetero-system blind processing are used
- C. The blind processing process occurs before the GAP measurement is started.
- D. blind treatment may save E measuring signal quality of a neighboring process, to reduce air interface signaling interaction
Answer: C
NEW QUESTION 44
What basic information does the performance measurement task contain?
- A. Measurement cycle
- B. Measurement indicator
- C. Measurement object
- D. Measurement report
Answer: D
NEW QUESTION 45
The common reference signal is used to measure the quality of network coverage, and the RS SINR and PDSCH SINR are equal.
- A. False
- B. True
Answer: A
NEW QUESTION 46
Which cell may be carried in the RRC CONNECTION REQUEST message?
- A. S-TMSI (TC-RNTI)
- B. SRB1 parameters
- C. Preamble
- D. AMBR
Answer: A
NEW QUESTION 47
Which of the following network elements can generate STN-SR? (Multiple choice)
- A. HSS
- B. ATCF
- C. MME
- D. AS
Answer: A,B,D
NEW QUESTION 48
Which of the following channels can change the modulation mode during the scheduling process? (multiple choice)
- A. PDSCH
- B. PDCCH
- C. PUSCH
- D. PUCCH
- E. PHICH
Answer: A,C
NEW QUESTION 49
Which information has been re-acquired after the service request is successful?
- A. Reconstructed SGs
- B. Reconstructed S1-C
- C. Authentication code
- D. Updated TAL
Answer: D
NEW QUESTION 50
Random access success means that the UE has completed uplink synchronization.
- A. True
- B. False
Answer: A
NEW QUESTION 51
Which of the following radio bearers can carry NAS messages? (Multiple Choice)
- A. SRB2
- B. SRB1
- C. SRB3
- D. SRB0
Answer: A,B
NEW QUESTION 52
In which step in the contention-based random-access process is to set an additional power offset?
- A. Step 1: Transfer the preamble sequence
- B. Step 3: Send a Layer 2/Layer 3 message
- C. Step 2: Random Access Response
- D. Step 4: Send a competition mode resolution message
Answer: A
NEW QUESTION 53
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