What is the meaning of the cell capacity results in Nokia Dimensioning tools ?

3. it means maximum cell data rate possible

1. cell capacity recalculated from the system simulation result based on assumptions of many active user

2. it means maximum user data rate

You are in optimizing 1 new site and 4G Payload suddenly increase and impact to your CSSR KPI, what will you NOT do immediately?

Payload Increase is good, so make justification for CSSR KPI

Check if any promo campaign to up the sales

Check your validity of your measurement if any double counting

Check if any site surrounding site if shutdown

How can a certain level of LTE service be guaranteed during the planning phase from the RF point of view

Both RSRP and SINR must be better than the design threshold

Only RSRP must be better than the minimum threshold

Only SINR must be better than the design threshold

RSRP must be better than the design threshold while SINR must be above -3dB

The CQI is defined as a table containing 16 entries with modulation and coding schemes (MCSs). Which one is correct for representing the modulation ?

CQI 1-6 = QPSK, CQI 7-9 = 16QAM, CQI 10-15 = 64QAM

CQI 1-6 = QPSK, CQI 7-10 = 16QAM, CQI 11-15 = 64QAM

CQI 1-5 = QPSK, CQI 6-8 = 16QAM, CQI 9-15 = 64QAM

CQI 1-6 QPSK, CQI 7-11 = 16QAM, CQI 12-15 = 64QAM

If uplink closed loop power parameter window (PUSCH) for level and quality is very narrow and requirement is high for both, what kind of problem will be faced when the loading is high and the average cell range is the network is high ?

Uplink interference will be very high and the cell middle/edge users will not have enough power to reach the CL PC targets

Uplink throughput close to the eNodeB will suffer the most

Cell average UL throughput remains good because the parameter settings favors the UEs in good radio conditions

Average cell UL throughput remains good but average UE TX Power will increase significantly

You are in optimizing 4G New Site, but you find that the Packet Loss Rate is high. What will you do first?

Check in hourly basis if packet loss is happen frequently or just a spike

Perform drive test to check the field impact

Immediately escalate to transport Engineer to seek support

Check hardware alarm if any baseband module broken

When throughput test shows low throughput value for TCP, but UDP throughput is high, what could be the cause?

Packet loss somewhere between the core network and eNodeB

Test is done too close to the site

Not enough BTS baseband capacity

Shaping is enabled in the transport path between the core and eNodeB

Which of the following that you will NOT do, if you find 2G TBF Downlink Success Rate is NOT pass the target baseline ?

Switch GTRX to better quality TRXs

Adjust GTRX number and CDED/CDEF

Which of the following options does NOT improve the latency as part of the Radio Network Optimization Procedures?

Tuning the scheduling request period

Enabling/Disabling Proactive Scheduling

How does MIMO improve spectral efficiency, network capacity and throughput

By using multiple receive and transmit antennas

By using multiple transmit and receive amplifiers

By using multiple uplink and downlink transmitters

Which of this statement about 4G S1 handover is correct?

S1 based handover is only applicable for inter-eNB handover

LTE inter-eNB handover can be executed only with X2 interface

actLTES1Ho = 0 means S1 HO is activated

If there collocation with 2G band, the S1 HO can be performed

What is the impact of changing cellIndOffNeigh ?

Adding offset to neighbor cell RSRP

Adding offset to serving and neighbor cell RSRP

Adding offset to neighbor cell RSRQ

Adding offset to serving cell RSRP

Which of the following options does NOT improve the latency as part of the Radio Network Optimization Procedures?

Enabling/Disabling Proactive Scheduling

Tuning the scheduling request period

Remote mode of 2G Flexi BTS Site Manager supports :

perform subsequent recommissioning or append commissioning from the 2G Flexi BTS

Connection of the 2G Flexi BTS via wireless LAN, so engineers do not need to access the high poles and towers

connection of the 2G Flexi BTS Site Manager to the BTS remotely via Windows default browser

connection of the 2G Flexi BTS Manager to the BTS via CPRI interface

In 4G Power control, What is the role of Alpha?

alpha = 1 in our network full compensation of path loss

alpha = 0 in our network full compensation of path loss

alpha = 1 in our network full eliminate of path loss

alpha = 0 in our network full eliminate of path loss

What will happen if we disconnect a 2M PCM cable from ET, where BTSs and TRXs area configure and plug it back immediately (less than 1 second disturbance) in GSM/EDGE environtment

in Case of a mobile terminal call, it stays in conversation mode. Abis LAPD signalling links area working all the time. Radio network is working all the time

All impacted active voice calls will be dropped Immediately

Mobile phone need to be power restarted after the PCM failure

The voice call will be handed over to a Base Station immediate neighbor cell defined at BSC

in the feature BSS20847 Automatic commissioning of the Flexi Multiradio BTS GSM/EDGE, below conditions are met :

The BSC must be able to download Abis mapping to the BTS as Abis mapping

The BTS configures the Abis allocations of the TRXSIGs, TCHs

The BTS must run in "stand alone" mode without any BSC connection before feature activation

SSS (Secondary Synchronization Signal) is used to :

Achieve radio frame synchronization

Achieve subframe synchronization

Identify the center of the channel bandwidth

Achieve slot and symbol synchronization

What benefit L3 Connectivity for mcBSC ?

Additional complexity caused by configuring L2 connections towards Site Equipment avoided.

Network evolution support from OMS and BTSMED based mediation to BTS Direct integration

Achieve slot and symbol synchronization

Identify the center of the channel bandwidth

Which statement is INCORRECT about KPI: E-UTRAN E-RAB Drop Ratio, RAN View?

E-RAB releases due to "No Radio Resources Available" initiated by eNB are counted as abnormal releases

This KPI describes the radio of abnormally released (dropped) E-RABs from RAN point of view

RAN point of view means that as abnormal E-RAB drops only those ones Initiated by eNB are counted

In denominator of the formula normal E-RAB releases due to successful HO to eHRPD are not counted

What statement about Uplink Power control is NOT true

UL power control is responsible for setting the power of the PHICH

UL power control changes may impact UL RSSI and SINR for PUSCH

UE is transparent to the UL power control algorithm

UL power control is important for the correct MSG3 reception

on which Base Stations the BSS101623 Energy Efficient Coverage in RG30 can be implemented ?

Flexi Multiradio, Flexi Multiradio 10 and Flexi Compact

all Base Stations expect the Motorola Horizon II BTS

Flexi Multiradio, Flexi Multiradio 10, and Metro Site BTS

Which statement about "ng-eNB" is BEST Fit

Providing NR user plane and control plane protocol terminations towards UE , supports connectivity with 5GC only

Providing E-UTRA user plane and control plane protocol terminations towards UE , Supports connectivity to 5GC and EPC

Providing E-UTRA user plane and control plane protocol terminations towards UE , Supports connectivity to 5GC only

Providing NR user plane and control plane protocol terminations towards UE , supports connectivity with EPC only

What are the top issues of ERAB drop Rate?

PDCCH Decoding issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry

PUCCH Decoding issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry

PRB issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry

RET issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry

What is Inactivity timer?

After expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state

Before expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state

Between expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state

No expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state

Where is IPsec applied?

IPsec is applied between eNB and Security Gateways (SEG)

IPsec is applied one eNB and Security Gateways (SEG)

IPsec is applied between GNB and Security Gateways (SEG)

IPsec is applied one GNB and Security Gateways (SEG)

Which of these applications requires Ultra Low Latency?

Industry Robotics and Automation

Which of these applications requires Ultra High Reliability?

Vehicle to Vehicle Communication

Which of these applications will require a large number of IoT devices?

Vehicle to Vehicle Communication

The "Cloud RAN" architecture is split into:

Centralized L3 Processing Units and Distributed Radio Units

Distributed L3 Processing Units and Distributed Radio Units

Distributed L3 Processing Units and Centralized Radio Units

Centralized L3 Processing Units and Centralized Radio Units

Which statement is NOT true related to Interference Rejection Combining (IRC)?

IRC is performed per subcarrier

IRC maximizes SINR of the wanted user by applying complex weight to the antenna elements

IRC can cancel interferers which are spatially correlated with the wanted signal

IRC is applicable to PUSCH only

Assessment NPO Subcontractor - 25

Authored by bayu nugraha

Professional Development

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60 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Handover are essenstial procedure for UE moving from cell to cell. What are the correct 4G Handover Event ?

A3—BetterCell, A5—CoverageBased

A4—BetterCell, A5—CoverageBased

A3—Coverage Based, A5—BetterCell

A1—BetterCell, A4—CoverageBased

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In 4G Intrafreq handover, in what condition UE will NOT measure or report any neighbor cells RSRP ?

If RSRP of neighbor cell is greater than threshold1, only serving cell is measured

If RSRP of neighbor cell is lower than threshold1, only neighbor cell is measured

If RSRP of serving cell is greater than threshold1, only serving cell is measured

If RSRP of serving cell is lower than threshold1, only serving cell is measured

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4G Coverage Based Handover will be only performed under what condition?

If 4G Better cell based handover fail, immediately change to 4G Coverage Based Handover

If call drop happen in cell edge

RSRP at serving cell < threshold3 and RSRP at target < threshold3a

RSRP at serving cell < threshold3 and RSRP at target > threshold3a

MULTIPLE CHOICE QUESTION

1 min • 1 pt

what is below is correct condition that cell re-selection will trigger measurement in 4G intra-frequency?

Qrxlevmeas > Qrxlevmin + Sintrasearch

Qrxlevmeas ≤ Qrxlevmin + Sintrasearch

If cannot do inter-frequency handover then do intra-frequency handover

Cell re-selection only happen in 4G Inter-frequency

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following sentences is TRUE about cyclic prefix?

It provides protection against multi--path delay spreadpath delay

Pilot signals can be inserted into the cyclix prefix

It provides signal equalization in the receiver

Reference signals can be instertedinstertedinto the cyclic prefixinto the cyclic prefix

MULTIPLE CHOICE QUESTION

1 min • 1 pt

IoT and LTE-M technologies are optimized for improved coverage. Which one of the following techniques enables coverage improvement?

Transmission repetitions

Half-duplex operation

Reduced transport block size

Single antenna transmission

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is it possible to plot throughput with a planning tool capable of only path loss based calculations?

1. No, it is only possible with Monte Carlo simulations

2. Yes, if the tool can calculate path loss and SINR (for static load) and MAPL (from link budget) is available for different throughputs

1 and 3 True

3. No, it is not possible based on only path loss calculations

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