Malik Samiullah

Senior Device Test Engineer

RF Consultant Design, Optimization

Phone:+1-346-***-****

Email: adpml0@r.postjobfree.com

Address: Apt Q2093, 9301 Avondale rd ne Redmond WA 98052

Summary:

Dedicated RF Optimization & Performance with excellent technical and analytical experience of 4 years in GSM, UMTS, LTE & 5G. Proven ability to manage multiple projects and meet critical deadlines

Snr Device Test engineer with strong troubleshooting knowledge, Adept at handling extremely high service request volumes with complete accuracy and efficiency, Strong ability to manage both small and large engineering teams with high professionalism

6+ years of combined experience in 2 different sides of telecommunication

Experience:

Client: T-Mobile

Sr Device Test Engineer Tech Mahindra USA (Oct 2020 to present).

• Testing handsets for 5g NR, LTE Advanced, LTE,UMTS/WCDMA functionality including

cell selection, call flow analysis.

• RF and conformance testing per network carrier and 3GPP specification using R&S TS

8980 and Protocol testing on R&S CMW500(Wideband Radio Communication Tester),

Anite, Anritsu .

• Protocol LTE, IR 94, IMS/VoLTE, RCS, Wi-Fi Calling Carrier Acceptance Testing.

• Understanding the behavior of E911 Call LTE, IMS Test Cases according to carrier and

analyzing the Physical Layer (L1) to RRC Layer(L3) on QXDM in result of failure.

• Analyzing Wi-Fi Calling Handover issues in scenario where User Equipment moves from

WLAN coverage to some specific RAT.

• Testing and Analyzing Wi-Fi Calling Emergency Calling Test Cases Layer 3 messages

wherein the call should go on WLAN or any RAT network according to the Test Case

Behavior.

• Analysis of SIP Logs using Wireshark for RCS, IR94 Testcases and raising defects if

there is an issue in SIP Publish, SIP subscribe message.

• Tracking Problems of different OEM’s encountered while testing and consulting them to

resolve the issues.

• Testing 4 X 4 MIMO Test Cases and verifying the device Throughput Measurement

and Rank Indicator .

• Testing License Assisted Access(LAA) Test Cases and Verifying the Device

Throughput if it meets the Test Case requirement.

• Communicating with Test Equipment vendor such as Rohde and Schwarz for script

issues and resolving the ticket.

• Reporting, Managing and resolving issues of different OEM’s.

• Scheduling Daily task for Team in order to create more reliability, efficiency in the

project

• Setting up automation using AT commands or adb commands for various devices on

R&S CMW 500, Automation coding experience in C#, Python, or power shell scripting;

skills in coding and debugging; automation development and debugging.

Client: Ufone

Sr RF Design and optimization Engineer LCC Pakistan (July 2018 to July 2020).

●Performed RF data analysis and pre launch optimization of LTE 1st carrier & 2nd carrier network in Islamabad and Rawalpindi.

●Responsible for improving KPIs like Accessibility, Retanability, Mobility (RRC Setup success rate, ERAB Setup Success rate, IRAT Handover success rate, DL & UL Throughput measurement & Drop calls). % Time on LTE and voice fallback to 3G (CSFB).

●Responsible for initial Tuning of newly integrated Sites & Parametric changes(A2/A3 offset, Hysteresis, Time to Trigger, qRxLevMin, pZeroNominalPusch, pZeroNominalPucch, rachRootSequence) and physical change (Tilt) for optimizing RSRP, RSRQ, SINR etc.

●Cluster pre-launch optimization which includes, drive route preparation, Coverage Analysis, RET Optimization, Handover Verification, Time on LTE, MO & MT Voice and Data Accessibility, Retainability and throughput Analysis.

●Traffic Balancing between Carriers to improve Network Quality using Idle Mode and Connected Mode Parameters.

●Good understanding of Huawei LTE Features like Mobility control at poor coverage, PDCCH link adaptation, Multi-RRC Establishment, UL/DL Coordinated Multipoint, MIMO strategies, CDRX tuning, Idle mode Strategy, Automatic Handover Optimization, Carrier Aggregation etc.

●High traffic Event management and parametric settings

●Identification of VoLTE issues like lack of dynamic QCI-1 activation, VoLTE required features not activated, SRVCC issues etc.

●Verified IHFO and IRAT handover in cluster boundary and recommended handover parameter changes to improve performance.

●Analyzed soft handover, IFHO & IRAT neighbors and made necessary changes.

●Monitoring CS / PS IRATs, CSFB, Call Drop, CST, Etc. and escalating the run time issue’s on sites.

●Troubleshooting 2G/3G Call Drops, Failed or delayed HOs, IRAT HOs, Pilot Pollution, Co Channel, Adjacent Channel and coverage issues.

●Conducting routine worst cells optimization by improving major KPI's DCR, HSR, CSSR.

●Optimization of Cluster KPIs and improving of worst cells

●Heavily involved in day-to-day issues to deliver KPI of every GSM/UMTS/LTE cluster.

●Evaluated the drive plots and optimized the network.

●Optimized existing network by analyzing their KPI’s & other reports and adjusting radio network Parameters and Recommending possible solutions to hardware problems.

Client: Telenor

●Junior RF Optimization Engineer LCC Pakistan (May 2017 to June 2018).

●Responsible for performing optimization activities (LTE/3G/2G) on allocated cities

●KPIs monitoring and troubleshooting (RRC, RAB, CSSR, DCR, MPD, Intra/Inter Frequency HO, IRATHSR, Traffic, CSFB, Payload, throughputs, EcNo, TA/PD Stats)

●Parametric audit & tuning of LTE/UMTS/HSPA+/GSM technologies (IRATs, Intra/Inter frequency HOs, neighbor relations)

●Monitor, analyze & rectification of LTE/UMTS/GSM field KPI’s using RF Tools (TEMS, MapInfo, NEMO, etc.)

●Active member of corporate complaints and surveys handling team

Client: Zong

●RF Engineer LCC Pakistan (August 2015 to May 2017).

●Cluster level KPI Analysis for 2G &3G sites.

●Optimization of RAB/RRC/I-RAT HOSR/SHSR/Power Congestion/CE Congestion.

●Parametric optimization for KPI improvement.

●Conducting routine worst cells optimization by improving major KPI's DCR, HSR, CSSR.

●Monitoring IRATs, CSFB, Call Drop, MRAB, Customer Complaint Handling, discrepancy removals,

●Troubleshooting 2G/3G Call Drops, Failed or delayed HOs, IRAT HOs, Pilot Pollution, Co Channel, Adjacent Channel and coverage issues.

●Identification and rectification of corporate complaints.

●Monitoring CS / PS IRATs, CSFB, Call Drop, CST, Etc. and escalating the run time issue’s on sites.

●Responsible to communicate, troubleshoot and resolve corporate customer complaints.

●Identification and rectification of faulty hardware through coordination with FOPs which includes replacement of RRU, Antennas and Jumpers.

●2g and 3g drive test of sector and band addition activities.

●Localization of external interference sources using Spectrum analyzer.

●Report to higher level in post processing using MapInfo, Excel and Word/Power point.

●Post Processing log files using TEMS Discovery, TEMS Investigation and MapInfo.

●Making Cell Files, MIPTs, Cluster Boundaries, LAC Boundaries.

Client: Ufone

●Interenship LCC Pakistan (Apr, 2015 to August 2015).

●Includes identification of issues such as Interference, Call Drop, Block Call, Congestion, HO Failure, Missing Neighbor etc. through Drive Test.

●Frequency Audit, Benchmarking, Cluster optimization Gprs Testing, Single site & Expansion sites Testing, Traffic balancing, Customer Complaints, PS Complaints.

●Prepare and present all types of reports and presentations related to KPIs.

●To figure out hardware problems (faulty TRX, VSWR etc.) causing KPIs degradations in network.

●Analysis and troubleshooting of Drive Test data and identification of problematic areas / cells based on poor RF conditions and poor KPIs.

●Worked at SCO (Special Communication Organization), as an Internee in GSM, IT and their International Gateway Department.

o23rd Jan, 2012 – 17th Feb, 2012.

Qualification:

Bachelor of Telecommunication and networking (BSTN)

Key Strengths

Applications: Tems Discovery Plan Editor Actix Analyzer Genex Assitnat 3.0 Tems investigation Mapinfo Professional ATOLL A9155 Atoll MapInfo EDX Signal Pro Actix Analyzer Nemo Outdoor/Analyzer Wireshark IB Wave XCAL TEMS QXDM QPST R&S Anritsu Keysight

Technical Skills: Network Design and Planning Solutions Engineering Testing & Optimization Call flow expert Network troubleshooting DAS Planning Data Visualizations.

Value-Added Leadership: Team Building & Mentoring Cross-Functional Supervision Client Relations & Presentations Vendor Management.

Reference:

Would be furnished on Demand.

Contact this candidate