Engineer Manager

LATIF FAYAZI

Contact No : 206-***-****

Email: *****.******@*****.***

LinkedIn: http://af.linkedin.com/in/abdullatiffayazi

Current Address: **** * ***** **, *******, Washington, USA

ROSHAN TELECOM (TDCA), KABUL, AFGHANISTAN 2014 – 2019

RF Optimization, Manager: GSM, EDGE, UMTS/HSPA+, 4G LTE, IOT

Managed drive testing & field measurements activities and benchmarked Roshan Telecom & competitor's network quality of services.

Deeply understand the 3GPP protocols, call follow, features’ functionality for WCDMA, LTE, IOT and 5G networks.

Tested Mobile devices under 3G and LTE networks to check device’s behavior and performance for basic and advanced network functions for android and iOS such as voice MOM ( mean opinion score), audio and video quality, 64QAM modulation, MIMO.

Tested Pre commercial launch of iPhones handsets, collected devices ’s performance logs and shared with Apple’s R&D for troubleshooting the iOS for defect such in emergency call malfunction.

Used the tools such as TEMS, QXDM, QCAT, QPST, TEMS Discovery, Actix, and MapInfo for RF drive test and diagnostic analysis. Cross matched issues from RF drive test with OMC counters for further breakdown analysis and troubleshooting.

Analyzed L3 in depth call flow and signaling protocol such as RRC, call est, and call initiation, MIMO,CA and etc..

Used Spirent F4L for testing the end user experience for voice and data performance such as Call Drop, Call setup, UDP,HTTP/FTP, MOS( Mean Opinion Score) on 3G, LTE and VOLTE networks

Used spectrum analyzer to conduct spectrum scanning and identified the interference source

Implemented RAN parameter optimization, RF troubleshooting, nominal site design, RF customer complaints assessment for coverage and quality

Extracted KPIs from Netact & PRS, prepared reports and presented weekly RF performance report and optimization projects’ progress for network director and CTO

Conducted TRX re-suffusing in order to remove TRX from low utilized cell/sites and shifted to congested cell for entire network, decreased congestion from 1.3% to 0.4%, saved 200 TRX to avoid new CAPEX requirement

Implemented new RAN features/techniques to improve the KPIs and end user experience such as DC-HSDPA, dynamic CQI feedback to cope with high RTWP. Improved HSUPA speed by 5% and HSDPA by 10%

Dealing with different vendors and Managed Service partners for projects and KPI issues

Monitored and fixed coverage issues after swapping single band antenna to tri band in LTE project implementation

Conducted Indoor coverage assessment and given recommendation for indoor solutions for business areas, airports, corporate customer offices

Implemented Spectrum re-farming for LTE deployment phase

Was point of contact for technical discussion with Roshan shareholder MTI ( Monaco Telecom international)

ROSHAN TELECOM (TDCA), KABUL, AFGHANISTAN 2011 – 2014

RF Optimization, Assistant Manager: GSM, EDGE, UMTS/HSPA+

Coordinated 2G/3G/LTE drive team to conduct drive test and log file post processing

Leaded the activities for RF performance and optimization in 900/1800 and 2100 MHZ for optimization including IRAT turning

Used the tools such as TEMS, QXDM, QCAT, QPST, TEMS Discovery, Actix, and MapInfo for drive test and diagnostic analysis.

Improved UL average user HSPA throughput by 4% after tuning the CQI feedback for Kabul UMTS cells

Prepared RF capacity design including the TRX, TCP, IUB

Optimized worst performing cells such as RAB congestion, IRAT issues, etc.

Conducted spectrum scanning to identify sources of interference

Conducted drive test log file analysis for CS and PS, given recommendation for down tilt, sector swap, and overshooting

Opened trouble tickets with vendors for resolving the chronic RF network issues

ROSHAN TELECOM (TDCA), KABUL, AFGHANISTAN 2009 – 2011

RF Optimization, senior engineer: GSM, GPRS, EDGE and HSPA+

Conducted drive and log file post processing

Monitored and optimized KPI performance such as CSSR, RAB Congestion, Call Drop Rate,

Improved paging success by 3% in west region after LAC splitting

Implemented auto Radio TRX shut down feature for low traffic cells at night hours and saved energy/fuel consumption by 100 liters monthly

Prepared configuration layout for new site roll out including the TRX configuration, LAC and CI

Carried out new feature trial for in RAN to improve the KPI

Checked QoS alarm and reported to O&M for troubleshooting

Conducted spectrum scanning to identify the interference

ROSHAN TELECOM (TDCA), KABUL, AFGHANISTAN 2008 – 2011

RF Optimization engineer: GSM, GPRS, EDGE

Conducted 2G/3G drive test and fixing sector swap issues

Conducted drive test and indoor test for coverage assessment

Conducted drive test log analysis by TEMS and Mapinfo to identify issues in regard to coverage, sector swap, and overshooting.

Recommended down tilt and sector swap adjustment to fix pilot pollution

Monitored and reported QoS alarms to O&M for troubleshooting from u2000, Netnumen, Netact

Carried out BCCH manual planning, LAC, NCC and BCC planning with the help of Mapinfo and planet EV digital map

Prepared RF capacity planning and TRX capacity

AWCC (AFGHAN WIRELESS TELECOM), KABUL, AFG 2008 – 2008

RF Engineer: GSM, GPRS, EDGE

Conducted drive test for voice and data

Conducted drive test investigation using TEMS, Actix Mapinfo

Conducted spectrum scanning by spectrum analyzer

Conducted RF antenna tilting adjustment

Checked and reported QoS alarms to O&M for troubleshooting

EDUCATION:

Bachelor of Engineering in Electronics & Electrical- Kabul University, Afghanistan (2003 -2007)

SKILLS AND TOOLS:

Microsoft Excel, Visual Basic, MS Access & SQL

TEMS, TEMS Discovery, Drive test, spectrum scanning, Mapinfo, ACTIX, Planet EV, Netact ( NSN), PRS, U2000, Netnumen, LMT for ZTE, Huawei and NSN, call flow, IOT, UMTS, LTE, Self-starter

TRAININGS:

NetAct OSS5.2 Reporter Essentials ( by NSN at Kabul, Afghanistan)

Base Station Subsystem dimensioning ( RF10) ( by NSN at Kabul, Afghanistan)

Base station Subsystem signaling RG10 ( BSS) ( by NSN at Kabul, Afghanistan)

Base station subsystem dimensioning RG10 ( by NSN at Kabul, Afghanistan)

Financial management training ( By USAID at Kabul, Afghanistan)

LTE Radio network training ( by Huawei at Kabul, Afghanistan)

3G UMTS RF design and Optimization ( By Huawei at Kabul, Afghanistan)

Huawei Radio Network Optimization ( By Huawei at Kabul, Afghanistan)

Huawei Radio Network Optimization ( By ZTE at Kabul, Afghanistan)

Huawei Radio Network planning ( By ZTE at Kabul, Afghanistan)

Managed Service workshop ( By DiGi Malaysia)

PMP preparation course ( by Roshan at Kabul, Afghanistan)

ISO 9001-2008 AWARENESS TRAINING ( By Ascent WORLD)

Wireless Drive test ( By CellTeck at Kabul, Afghanistan)

LTE spectrum workshop Vodafone group ( by Vodafone group At Istanbul Turkey)

LTE world summit ( at Singapore)

MNO ( Mobile network optimization conference ) ( By IQPC at Thailand)

LNAGUAGES:

English, Persian, Pashtoo

REFERENCE:

References will be furnished upon request

Contact this candidate