3g Huawei Examination 2014

Sample 1

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Question1 - True or False (2.0 Score) (True or False) The difference between soft handover and softer handover : softer handover happen in the same NodeB, and signal of branches are combined in NodeB by selection combination mode, soft handover happen between different NodeBs, signal of branches are combined in RNC by Maximal ration combination.[HOLD] Read Signalling Flow Cari tau Maximal ration combination Soft Handover  Selection Combining Softer Handover  Maximal ration combining True False

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Question2 - True or False (2.0 Score) (True or False) In WCDMA network, the interface between NodeB and RNC is called Iub, the interface between RNC and RNC is called Iur, the interface between RNC and CN is called Iu, the interference between UE and NodeB is called Uu. Salah di Interference True False

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Question3 - True or False (2.0 Score) (True or False) In WCDMA mobile communication system, the diffraction capability is worse and penetration capability is better at the frequency of 2 GHz that at GSM 900 MHz True False [Cari tau tentang diffraction]- Pernyataan tentang penetration salah , tetapi pernyataan diffraction capability benar, jadi jawaban adalah false

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Question4 - True or False (2.0 Score) (True or False) The more neighbor cells we configure, the better the network performance will be True False

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Question5 - True or False (2.0 Score) (True or False) dBi is defined as the energy centralizing capability of the actual antenna in relation to isotropic antenna True False

dBd = dBi – 2.15dB dBi = dBd + 2.15dB

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Question6 - True or False (2.0 Score) (True or False) Doppler Effect has great impact on the narrow-band radio system, but less on the broad-band radio system True False

Belajar Doppler Freq Shift

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Question7 - True or False (2.0 Score) (True or False) Front-to-back ratio of antenna should be larger than25 dB when it was applied in urban area True False

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Question8 - True or False (2.0 Score) (True or False) In RAN11, 64QAM max throughput of one users is 21M((3.84Mcps / 16)x15x6); 2*2 MIMO max throughput is 28M (2x14) . 14M = ((3.84Mcps / 16)x15x4) = 16QAM True False

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Question8 - True or False (2.0 Score) (True or False) In RAN12, 64QAM+DC-HSDPA max throughput of one user is 42M; 64QAM+MIMO max throughput is 42M True False RAN 11 Max 21Mbps , Ran 12 Max 42Mbps, Ran 13 Max 84Mbps, Ran 14 Max 84Mbps, Ran 15 Max 168Mbps

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Question9 - True or False (2.0 Score) (True or False) In Radio Network Demensioning, according to link budget, we can get cell capacity True False [Hold] Baca UMTS Cap Planning (HCNP) & Radio Propagation Theory

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Question10 - True or False (2.0 Score) (True or False) In Inter RAT handover procedure RNC will send “Active set update” to UE True False

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Question11 – Single (3.0 Score) (Single Choice) Which one is wrong about the neighbor cell optimization? [A]. Neighbor cell missing may cause call drop [B]. The more the neighbor cells we configure, the better the network performance will be [C]. Neighbor cell includes intra-frequency, inter-frequency, and intersystem [D]. After drive test, comparing the UE signal with Scanner signal can assist engineer to find neighbor cell missing more easily

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Question12 – Single (3.0 Score) (Single Choice) About measurement report, which one is incorrect [A]. 1B event means the quality of one cell in active set is worse than the best cell [B]. 1D event triggers the best cell change [C]. 1F event means the quality of a cell is lower than an absolute threshold [D]. 1A event means one cell signal quality is very close to the best cell or active set cells quality. UE will still report 1A event when the active set is full

Question13 – Single (3.0 Score) (Single Choice) Channelization code is used to distinguish ( ) in uplink [A]. Different users in one cell [B]. Different physical channels of one user [C]. Different users [D]. Different cells

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Untuk downlink channelization code digunakan untuk membedakan cell (PSC) Question14 – Single (3.0 Score) (Single Choice) SCH can be classified as PSCH and SSCH. PSCH carriers only one type of PSC, but SSC in SSCH can be classified as ( ) types [A]. 256 [B]. 1 [C]. 15 [D] 16

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Question15 – Single (3.0 Score) (Single Choice) The noise of receiver has no relation with [A]. Working temperature [B]. Working humidity [C]. System bandwidth [D]. Noise figure (NF)

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Question16 – Single (3.0 Score) (Single Choice) In uplink budget, the body loss of PS service is [A]. 3 dB [B]. 1 dB [C]. 0 dB [D]. 2 dB

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Question17 – Single (3.0 Score) (Single Choice) In WCDMA network, different services are assigned with different OVSF codes. Which of the following downlink OVSF codes can be assigned to 384kbps service [A]. Cch 4, 0 [B]. Cch 4, 1 [C]. Cch 8, 1 [D]. Cch 8, 0

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Question18 – Single (3.0 Score) (Single Choice) For the CS12.2K service, the maximum power of UE is usually set as [A]. 21 dBm [B]. 27 dBm [C]. 24 dBm [D]. 33 dBm Untuk Speech, digunakan UE TX Power adalah 21 dBm

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Question19 – Single (3.0 Score) (Single Choice) Which of the following sentences about uplink inner loop power control is wrong [A]. If SIR estimation is less than SIR target, the TPC is 1 to increase the transmission power [B]. TPC_cmd is achieved by different algorithm o [C]. If SIR estimation is greater than SIR target, the TPC is -1 to decrease the transmission power [D]. The power control adjustment range in DPCCH is ΔDPCCH=ΔtpcxTPC_cmd Benar bila TPC= 1 increase power and -1 decrease power

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Question20 – Single (3.0 Score) (Single Choice) During soft handover, UE is in ( ) state [A]. URA_PCH [B]. CELL_PCH [C]. CEL_FACH [D]. CELL_DCH

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Question20 – Single (3.0 Score) (Single Choice) While do prediction with U-Net, which can be generated without simulation? [A]. Coverage by signal level [B]. Coverage by transmitter [C]. Downlink total noise [D]. Overlapping zones

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Question22 – Mutiple (5.0 Score) (Multiple Choice) The UE shall read system information broadcast on a BCH transport channel when the UE is in which work mode [A]. Cell PCH [B]. Idle mode [C]. URA PCH [D]. Cell FACH

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Question23 – Mutiple (5.0 Score) (Multiple Choice) The load control algorithm include ( ) and etc. [A]. IAC [B]. PUC [C]. OLC

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[D]. LDR

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Question24 – Mutiple (5.0 Score) (Multiple Choice) Power control are not adopted for which physical channels [A]. SCH [B]. DPDCH [C]. PCCPCH [D]. RACH

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Question25 – Mutiple (5.0 Score) (Multiple Choice) Which of bellow reason can trigger cell update? [A]. Paging response [B]. UE location changed [C]. There is uplink data to be transfer [D]. Periodic update

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Question26 – Mutiple (5.0 Score) (Multiple Choice) UE in which of bellow status will use paging type 1 [A]. Cell-FACH [B]. Idle [C]. URA-PCH [D]. Cell-PCH

Question27 – Mutiple (5.0 Score) (Multiple Choice) What are the targets of WCDMA power control [A]. Overcome shadow fading and fast fading [B]. Transmits the power as big as possible to guarantee communication for each user [C]. Overcome “far-close effect” [D]. Adjust transmit power, guarantee communication quality in uplink and downlink

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Question28 – Mutiple (5.0 Score) (Multiple Choice) Which can be import Assistant [A]. HUAWEI RNC performance data [B]. GEEX PROBE test data [C]. HUAWEI RNC tracing data [D]. Nemo test data

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Question29 – Mutiple (5.0 Score) (Multiple Choice) Below which physical channels are used for paging [A]. AICH [B]. SCCPCH [C]. PCCPCH [D]. PICH

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Question30 – Mutiple (5.0 Score) (Multiple Choice) Which of the bellow are physical level function [A]. Load control [B]. Coding [C]. Modulation [D]. Spreading

Sample 2 Question1 – True or False (2.0 Score)

(True or False) In WCDMA, the frequency value in Outer Loop Power Control is 1500 Hz o True o False Question2 - True or False (2.0 Score) (True or False) In CELL-PCH state, no data are transferred in both uplink and downlink, UTRAN doesn’t know which cell UE is located, but in CELL-FACH state, UE is active, few data are transferred in both uplink and downlink, so UTRAN knows which cell UE is in. o True o False Question3 - True or False (2.0 Score) (True or False) In the radio propagation, Fast Fading (Shadow Fading) is in normal distribution, while Slow Fading (Raileigh Fading) is in Raileigh distribution o True o False Question4 - True or False (2.0 Score) (True or False) To cover the tunnel , if the lenght of tunnel is larger than 2 km, we suggest to use Leaky cable cover o True o False Question5 - True or False (2.0 Score) (True or False) DBS3900 consist of BBU, MRFU and RRU o True o False

Question6 - True or False (2.0 Score) (True or False) Each RRU3908 can support maximum UMTS carriers is 4 o True o False Question7 - True or False (2.0 Score) (True or False) Normally different antenna diversity modes will be adopted in urban and rural area, space diversity antenna will be used in urban area and Polarization diversity antenna will be used in rural area to overcome fast fading o True o False Question8 - True or False (2.0 Score) (True or False) In RAN12, 64QAM+DC-HASDPA max throughput of one user is 42M; 64QAM+MIMO max throughput is 42M o True o False

Question9 - True or False (2.0 Score) (True or False) In link budget of WCDMA, Interference margin will reflect the load of system o True o False Question10- True or False (2.0 Score) (True or False) Service Area Identification (SAI) is the only identifier of a service cell in form of MCC+MNC+LAC+SAC o True o False Question11- Single (3.0 Score) (Single Choice) Which of the following entities does not voice traffic data in Uu interface? o [A]. Physical layer o [B]. MAC o [C]. PDCP o [D]. RLC

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Question12- Single (3.0 Score) (Single Choice) HSUPA is introduced in o [A]. R4 o [B]. R6 o [C]. R5 o [D]. R7 Question13- Single (3.0 Score) (Single Choice) For HSPA radio network planning, the downlink cell target load is usually set as o [A]. 50% o [B]. 75% o [C]. 90% o [D]. 100%

Question14- Single (3.0 Score) (Single Choice) In radio propagation model tunning, the purpose of geography binning is o [A]. All above is wrong o [B]. Eliminate fast fading, remain the effect of slow fading o [C]. Eliminate slow fading, reamain the effect of fast fading o [D]. Eliminate slow fading and fast fading Question15- Single (3.0 Score) (Single Choice) Which of the following parameter is used for uplink DPCCH initial synchronization o [A]. NinsyncInd o [B]. N315 o [C]. T312 o [D]. Trifailure

Question16- Single (3.0 Score) (Single Choice) Eb/No Required has no relation with o [A]. System bandwidth o [B]. Configuration of receive diversity o [C]. Multi-path channel condition o [D]. Bearer type

Question17- Single (3.0 Score) (Single Choice) Which is correct to depict the receiver sensitivity o [A]. PN = KxTxBW/NF o [B]. PN = KxTxNF/BW o [C]. PN = KxTxBWxNF o [D]. PN = KxT/(BWxNF) Question18- Single (3.0 Score) (Single Choice) Which of the the following modulation mode is used in R4 o [A]. GMSK o [B]. 16QAM o [C]. 64QAM o [D]. QPSK Question19- Single (3.0 Score) (Single Choice) In the following, which is not the channel coding on the downlink channel o [A]. TURBO coding o [B]. Convolution coding o [C]. No coding o [D]. AMR Question20- Single (3.0 Score) (Single Choice) The AC-ASC mapping information is optional and used for the which system information block only o [A]. SIB1 o [B]. SIB5 o [C]. SIB11 o [D]. SIB3

Question21- Multiple (5.0 Score) (Multiple Choice) The key technologies of HSUPA include o [A]. AMC o [B]. Fast scheduling o [C]. HARQ o [D]. 16QAM

Question22- Multiple (5.0 Score) (Multiple Choice) In system information block, SIB 5 included o [A]. PI number in one PICH frame o [B]. CPICH power o [C]. UL interference level  SIB 7 o [D]. Available sub channel number

Question23- Multiple (5.0 Score) (Multiple Choice) In soft handover optimization, which action can be benefit for reducing ping-pong handover? o [A]. Increase 1A & 1B threshold o [B]. Increase time to trigger lenght o [C]. Increase 1A & 1B Hysteresis o [D]. Increase level 3 filter factor

Question24- Multiple (5.0 Score) (Multiple Choice) Which of the below action maybe included in IAC process o [A]. Rate negotiation o [B]. CAC o [C]. DRD o [D]. Queuing

Question25- Multiple (5.0 Score) (Multiple Choice) Which of below reason can trigger cell update? o [A]. Paging respone o [B]. There is uplink data to be transfer o [C]. Periodic update o [D]. UE location changed

Question26- Multiple (5.0 Score) (Multiple Choice) Load control between cells include o [A]. OLC o [B]. PUC o [C]. Cell breath o [D]. Interfreq cell load balance

Question27- Multiple (5.0 Score) (Multiple Choice) Normally, the below condition will be defined as Drop call o [A]. Received the RB release message o [B]. Received any BCH information (system information)

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[C]. Received anyone of the 3 message of CC Disconnect, DC Release Complete, CC Release, and the release cause are Not Normal Clearing or Not Normal, Unspecified [D]. Received RRC Release message and the release cause is Not Normal

Question28- Multiple (5.0 Score) (Multiple Choice) In open loop power control of PRACH, the initial transmission power of the preamble is determined by which factors o [A]. CPICH_RSCP o [B]. PCPICH DL TX Power o [C] UL interference o [D]. Constant value

Question29- Multiple (5.0 Score) (Multiple Choice) In the WCDMA system, methods against fading include o [A]. Adopt powerful encoding, interleaving and retransmission protocol to increase redundancy and time diversity, thereby helping the receiver recover user bit from the fading o [B]. Adopt fast power control and intrinsic diversity reception of Rake Receiver to reduce signal power fading o [C]. As a broadband system, WCDMA system itself supports frequency diversity to whitstand fading o [D]. Adopt Rake Receivers to concentrate delayed and disperse energy Question30- Multiple (5.0 Score) (Multiple Choice) Which of the below action can be used in overload control? o [A]. UE release

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[B]. UE transfer from DCH to FACH [C]. BE rate reduce [D]. TFC control