Hilmi Hakan Yilmaz

Omerpasa sokak No:** d:*

Erenkoy /Istanbul

Mobile Phone +90-552-*******

E-mail: ac8of5@r.postjobfree.com

EDUCATION

Istanbul Technical University Istanbul/TURKEY

B.Sc. Degree in Electrical & Electronics Engineering

Advanced training and experience in telecom systems,switch products AXE and CPP based systems.Product management and technical support of the new SW and HW releases.

More than 20 years of experience in the Telecom industry,combining strong analytical skills with business acumen to positively contribute to the other divisions .Readily establish a positive rapport with team members and work collabboratively to achieve the goals .Excellent presentation skills, easily communicate with sw developers, customers and executives.

SUMMARY OF THE WORK EXPERIENCE

* May 2018 - September 2018 PIWORKS /Telefonica Project Mexico City/ MEXICO

LTE UTRAN/ RF Support Expert

* June 2016 - March 2018 PIWORKS /Turkcell Project Istanbul/TURKEY

LTE UTRAN/ RF Support Expert

* December 2015 - April 2016 PIWORKS /TurkTelekom Project Istanbul/TURKEY

LTE UTRAN/ RF Support Expert

* August 2011 – December 2015 AT&T / U.S.A. San Ramon/CA

LTE UTRAN/ RF Support Expert

* June 2008- August 2011 ERICSSON /TURKEY Istanbul/TURKEY

Ericsson Telecommunication A.S.

NDI and Support Engineer

* June 2004- June 2008 AVEA Istanbul/TURKEY

Operation and Maintenance Engineer

Performance and Quality Engineer

* February 2001- June 2002 NIPPON ERICSSON Nagoya/JAPAN

Ericsson Telecommunication Consultant

Support Engineer, Product Manager

* October 1999- November 2000 ERICSSON,(INFOTEL SPA) Milano / ITALY

Ericsson Telecommunication Consultant

S/W Roll-Out,Testing Engineer

* September 1997-October 1999 TURKCELL Istanbul/TURKEY

Senior Engineer, Technical Operations Department

PROFILE

LTE UTRAN Support Expert

-LTE e-nodeb commissioning and integration has been performed on LTE network .

-UTRAN parameter audit and tuning have been performed for all LTE network.

-SW upgrade has been performed on LTE e-nodeb (such as L13B, L14A, L14B )

-Feature test cases implemented and tested for suitable solutions of the LTE network (such as -Carrier Aggregation, Csfallback to UTRAN GERAN, DynamicQoSModification).

-Configuration and implementation changes have been performed (such as cascading RET,TMA

implementation, Load Balancing HW configuration, MIMO (2*4 hw configuration ).

-Trace has been collected for solution of the specific problems (main KPI`s problem solving and

specific problem investigation)

-Ericsson CPP platform script preparation and implementation have been performed .

-All kind of HW and SW problems have been supported on LTE network.

-Fine tuning and FGA (Field Guide Alert) testing and implementation have been tested and applied

on all NORCAL ATT network.

-S1 and X2 interface problem finding and solution has been performed.

-MME interface support and configuration interface has been performed.

-All type of UTRAN support has been provided to Northern California ATT market .

UTRAN Network Deployment and Integration 4G 3G and 2G

-AXE and CPP platform SW release handled in all aspects of the 4G 3G and 2G networks .

-MGW and RNC, nodeb, enode-b extension and SW upgrades performed .

-New feature and functionality activation performed (Voice over IP,Gb over IP etc)

-All type of AXE and CPP based switch HW extension performed.

Magazine (cp,gem,et155 etc.) extension and maintenance has been performed .

-RNC start up and configuration made (more than 20 RNC type 3810,3820)

-MGW start up and configuration have been performed.

Optimization of LTE and 5G network

-Self study of 5G layer structure (layer 1, layer 2 and MAC layer ) and scheduling mechanism .

5G mobility and multi-connectivity principals

-Actix, TEMS drive test log analyzes and fault finding improvement suggestions have been performed.

-LTE Network Cluster Optimzation activities have been performed for KPI improvements .

-LTE Network parameter investigation for network performance and quality imperovement activities have been performed .

-Worked in a Multi Carrier LTE Network Optimization Project since 2011 and supporting E2E LTE optimization and troubleshooting.

-Actively participated in feature and parameter trials on E/// system with AT&T Northern California market .

-Performed Pre&Post Launch optimization with different carriers and acquired acceptance from customer through COPs (Close Out Packages)

Cluster Optimization for LTE initial carrier

Single site Verification for Additional Carriers (2C/3C)

-Worst Performing Cell analysis through OSS statistics and KPIs (Retainability / Accessibility / Mobility / Throughput / TimeNotOnLTE-TNOL)

-Analyzed statistical alert mechanisms to resolve network issues by giving recommendations to

-Overshooting sectors

-PCI confusion/conflicts / RRS changes

-Low throughput (load balancing, idle mode priority changes)

-Poor RSRP - Low SINR

-Physical changes (New site needs / azimuth changes / TMA requirements)

-Alarm checking / VSWR / RSSI / PIM issues

-Analyzed L3 message for Attach, Detach, Paging and ERAB establishment

-Defining Profiles, scheduling and decoding OSS Traces (mainly CTR) for specific event analysis

-Golden Parameter List Audits and Discrepancy Fix, Feature and License check

-Carrier Aggregation / MultiCarrier Load Balancing (Layer Management) / Mobility Parameters Tuning (IRAT / IFHO / Early-Late HO / CIO) / Coverage and Capacity Optimization /

-Following daily progress of optimization project with customer

-Preparing and submitting documents based on customer operational process ( MOP / Trouble

-Coordinating with Design team for cross checking field measurements with Planning tool outputs (Coverage and Best Server Plots from Atoll versus Drive Test Data)

Performance Improvement

-System performance and quality improvement activities performed in all kind of nodes

additionally service given to some operators in Turkey and some of South American countries.

-Performance improvement activity performed by monitoring by speech and signaling traffic data

-Optimization performed by all HW and SW definitions by using tools and statistical

Measurements.

-Network exchange parameters check and definition standardization performed.

-Network design and capacity improvement performed.

S/W Roll-Out Engineer 4G, 3G, 2G

-LTE Network sw upgrade has been performed such as L13A,L14A,L14B.

-R13.2 SW roll out – Completed Turkcell network upgrade alone (200 nodes that are MSC,MSC-S HLR )

-Supported many operators in Turkey, Italy, Japan, Kazakhstan, Cyprus, Israel .

Performing sw activities in several AXE-10 switches.

SWITCHES : CPP Platforms RNC,MGW,nodeb, e-nodeb (Ericsson)

ERICSSON AXE-10-10 (GMSC/MSC/BSC/SCP/HLR/TRANSIT SWITCHES)

APZ VERSION APZ 212 25 & APZ 212 30 & APZ 212 33 & APZ 212 40& APZ 212 50& APZ 212 55

APT VERSION BYB 202,BYB 501,BYB 810

-Performed sw roll-out as System upgrade, CNA, AC-A, ECA and FCA to the GSM and

UMTS systems of the operators, fault finding and Emergency Support

procedures.

- RNC and MGW upgrades performed.

-Emergency case handling of the AXE-10 switches (Call out activity)

-Operation and maintenance activities required by a cellular network in AXE-10 and UMTS.

-Analyzes in general,route analyzes,branching,charging analyzes,b-number,pre b-number,

d- number, end of selection analyzes etc.

-Testing of Ericsson AXE-10 and UMTS Switches in GSM UMTS Network including all types of

Switches.

-Cell definition and delete, trx addition and delete, cell type change etc..

-Taking new MSC BSC HLR MGW RNC LTE put in services

- Understanding and defining statistics and measurement subsystem operations.

- Mobile related statistics using OSS and reporting post-processing

- Interpret Statistic results and solve related problems.

- Solving emergency charging problems.

- Emergency handling operations.

- New data entries and definitions.

- Maintenance of hardware problems

- Using protocol analyzer for solving problems

- Reporting problems and suggested solutions

- Provide training to local staff

TRAINING

-LTE Air Interface ERICSSON, SWEDEN

-LTE Performance Management and Optimization ERICSSON, ISTANBUL

-LTE E-NODEB COMMISIONING ERICSSON, SWEDEN

-RBS 6000 in NUTSHELL ERICSSON, ISTANBUL

-LTE Radio Network Functionality ERICSSON, ISTANBUL

-LTE DEMO CONFIGURATIN (4 WEEKS) ERICSSON, ISTANBUL

-CPP SURVEY ERICSSON, ISTANBUL

-MGW OPERATION AND CONFIGURATION ERICSSON, DUBLIN

-WCDMA RAN P6 IP CONFIGURATION ERICSSON, SWEDEN

-WCDMA RAN P6 TRANSPORT NETWORK DESIGN ERICSSON, SWEDEN

-WCDMA RAN P7 IP TROUBLESHOOTING ERICSSON, ISTANBUL

-WCDMA RAN P7 Customization ERICSSON, ISTANBUL

-APG 40 Operation and Maintenance ERICSSON, ISTANBUL

-GPRS NOC and SW Management and (3 DAYS) ERICSSON, SHIN-YOKOHAMA

-GPRS Hardware Maintenance (2 DAYS) ERICSSON, SHIN-YOKOHOMA

-GPRS Network Operations (2 DAYS) ERICSSON, NAGOYA

-APG 40 O&M and Testing(5 DAYS) ERICSSON, NAGOYA

-CMS 30 MSC DELTA COURSE (2 DAYS) ERICSSON, NAGOYA

-AXE-10 10 CELLULAR O&M (25 DAYS) ERICSSON, ISTANBUL

-CME 20 SYSTEM SURVEY (3 DAYS) ERICSSON, ISTANBUL

-MSC O&M (5 DAYS) ERICSSON, ISTANBUL

-BSC O&M (5 DAYS) ERICSSON, ISTANBUL

-MSC DELTA O&M R 6.1 (2 DAYS) ERICSSON, ISTANBUL

-BSC DELTA O&M R 6.1 (2 DAYS) ERICSSON, ISTANBUL

-MSC DELTA O&M R 7.0 (2 DAYS) ERICSSON, ISTANBUL

-BSC DELTA O&M R 7.0 (2 DAYS) ERICSSON, ISTANBUL

-RBS 2000 O&M (4 DAYS) ERICSSON, ISTANBUL

-SİGNALLİNG NO:7 IN GSM (5 DAYS) ERICSSON, ISTANBUL

-DXX Digital CrossConnect NMSOperation Course ERICSSON, STOCKHOLM

-SSF/SCF O&M based on PPS&PN (5 DAYS) ERICSSON, STOCKHOLM

-GSM HLR 10 OPERATION & MAINTENANCE ERICSSON, DUBLIN

-APZ 212 20 O&M ( 5 DAYS) ERICSSON, ISTANBUL

-PROTOCOL ANALYZER (2 DAYS) ERICSSON, ISTANBUL

-IOG 11 O & M ADVANCED, (5 DAYS) ERICSSON, ISTANBUL

-IOG 20 O & M ADVANCED, (5 DAYS) ERICSSON, ISTANBUL

-CME20 ADVANCED SYSTEM TECHNICS,(5 DAYS) ERICSSON, ISTANBUL

UNİX based courses

-UNIX OVERVIEW

-WORKING WITH FILES

-PROCESS AND DATA UTILITIES

-THE USER ENVIRONMENT

-USING EDITORS

-USING THE SHELL

TCP/IP based courses

-INTRODUCTION TO TCP/IP AND IP ADDRESSING

-HOST NAME RESOLUTION

-DNS SERVER

-MICROSOFT SNMP SERVICES

-PERFORMANCE TUNING AND OPTIMIZATION

-CONNECTIVITY IN HETEROGENEOUS ENVIRONMENTS

LANGUAGES : English, Italian (Intermediate)

HOBBIES: Soccer, Basketball, Travel, Trekking, snowboard

~More information can be provided upon request

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