RF Engineer Interview Questions | Drive Test Engineer Interview Questions

 RF Engineer Interview Questions:

RF engineer or rf drive test engineers are commonly asked below written question. But it depends on your job duties for which postion you are hiring. Rf engineer interview question should not be same all time due to new technologies coming day by day but basics are very important to understand. When you talk about drive test engineer jobs you should have to know companies for drive test engineers.

Interview questions and answers:

Q.1: Please introduce the telecommunication/wireless system configuration.

GSM: MS-BTS-BSC-MSC WCDMA:UE-NODEB-RNC-CN

Q.2: Tell us 2G/3G(noun) parameter we often see in the testing ,explain it:

GSM:

RX Level (Received signal level):

-70dbm to -20dbm:good;-70dbm to -80dbm:normal;-80dbm to -90dbm:acceptable; below -90:bad

RX Quality (Recieved signal quality):

0 to 4 :good;   4 to 6 normal; up 6 bad;

C/I: Carries power / Interface power

WCDMA:

RSCP: Recieved signal code power

-70dbm to -20dbm:good;-70dbm to -80dbm:normal;-80dbm to -90dbm:acceptable; below -90:bad

Ec/Io: Chip energy / Interface of other cell:

0 to -6:good;-6 to -10: normal;-10 to -12:acceptance; below -12:bad.

Q.3: Introduce the testing for new site.

① On air or not；

② sector swap or not;

③ site coverage;inter handover;intra handover;

④ GPRS or hsdpa hsupa testing

⑤ video call testing(3G)

⑥ sms,mms testing

Q.4: How to estimate the antenna /feeder cross during testing?

When we at the service cell coverage the rxlev is other cell’s .and the rxlev is weakly.

When we test ,target cell ,the sverce line connect to other cell.

Q.5: Please Analysis of Causes of call drop.

Poor coverage:

Coverage hole, dead zone, isolated island, uplink/downlink unbalance Coverage over shooting Signal attenuation.

Interference:

Internal interference, external interference and the equipment interference ; Strong downlink/ uplink  interference.

Parameter setting not proper:

Radio link timeout counter, handover, power control etc.

Handover failure:

Q.6: Please Analysis of Causes of handover failure.

① missing neighbor or neighbor not defined

② parameter for the handover are not good

③ Interference

Q.7: Introduce the software and test equipment you have used Software:

① TEMS product:TEMS9.1;8.14;8.03;

② Nemo

③ Probe1.5,probe1.4;probe1.3; assistant analysis

④ Mapinfo:9.0;8.5;7.0;

⑤ actix analysis

 Test mobile:

sonyerrisson: k800i; k790i; z750i; w600; w995

Nokia: 6680; N70; N80

Motorola: V3XX

Q.8: Introduce the mapinfo and googlearth.

① Check the site location from google earth or mapinfo

② check the entironment nearby the site and make a plan for the testing from google earth and mapinfo;

③ analysis the logfile from mapinfo.

Q.9: how can analysis the logfile and make report.

① actix software analysis

② Tems software analsis

③ assistant software analysis

Check coverage,quality ,handover and Throughput and so on.
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Companies for 2g 3g and 4g drive test engineer jobs in Saudi arabia KSA

LCC:

LCC is a world famous telecom company who need drive test engineers every time. In Saudi Arabia LCC do not allow to work on free visa now, If you want to work in LCC you should have to transfer in company.

LCC Address:

Office # 4 and 5 second floor Al mizan tower, main street olaya Riyadh KSA

Riyadh 11451 P.O Box 2432

Phone: +966 11 4653626

Fax: +966 11 4661838

Web: www.lcc.com

SwedTel Arabia:

In different cities swedtel has different projects Main cities where it is working is Dammam, Jizan, Abha, Jeddha and Madinah.

Swedtel allow to work on free visa and hire drive test engineer fresh and experienced. This is not a big company if we see lcc, Swedtel is only working in four countries UAE, KSA, Malaysia and Sweden.

SwedTel Address:

Al hejlan building Near ishara siteen olaya road Riyadh KSA.

Riyadh 115227 P.O Box 68367

Phone: +966 11 4735990

Fax: +966 114735991

Web: www.swedtel.com

GTL:

In telecom business gtl is a well-known telecom company in KSA. GTL has awarded many time in different business competitions. GTL is working in Nepal, USA, Canada, UK, UAE, KSA and Philippines. GTL hire drive test engineers for 2g 3g and 4g projects.

GTL Address:

Office # 615 Al Akaria 2 Olaya GTL KSA limited

Riyadh 11372 P.O Box: 301146

Phone: +966 1 4603990

Fax: +966 1 4603700

Web: www.gtllimited.com

Delta Telecom:

Delta is working in various telecom fields like network planning, network development, network support, Rf network planning, optimization and drive test engineering.

Delta Telecom Address:

Office # 14, 15 4rt floor al lokman building. King Abdul Aziz st. cross 10 Al-Khober.

Phone: +966 3 8998183

Fax: +966 3 8998183

Web: www.deltatelecom.co

CCS:

CCS is hiring drive test engineers who has good knowledge of 2g 3g and 4g experience with reporting. CCS take transfer and have good benefits for employs instead of others.

CCS Address:

Room # 104 first floor Al Salam complex king fahad road Riyadh KSA.

Phone: N/A

Fax: N/A

Web: www.chinaccsi.com

• Email List of companies in Saudi Arabia