Mr. Sarwat A. Tawfik ac19zn@r.postjobfree.com

**** ***** **., **********, ** 60565, USA 630-***-**** USA

Objective:

A System Engineering leading position in the RF Network, RF DAS design / Optimization, or RF Project Management.

iBwave certified, 6 years DAS, 23 years RF design

4/2001- Now Contractor Principal Systems Engineer (iBS DAS 6 years, WCDMA CDMA 5 years, 5 years (iDEN & MW),

May 2013 - Now : ATT ASG DAS group, MI/IN market, and ExteNet Systems, Lisle IL, USA (total 13 + 10 venues).

Principal DAS design Engineer; my list of venues on all projects is inserted as an object at the foot.

Review /critic designs and commissioning progress reports submitted by other vendors, and suggest fixing to meet the KPI’s such as RSCP, RSRP, Ec/IO, RSRQ, UT Tx. Best Server, SINR, SHO, Overlap Zones, etc. See other projects below for other tasks.

Request Adding Features in the design tool “iBWave”, see attachment of list of registered features in my name.

Perform Site survey before and during the design process to define antennas location, and cable routes.

Approve and Present final design version with a RAN Optimization plan to RAN Manager, to secure his approval.

Coach junior Engineers on iBWave, and other RF design / optimization topics. Audit the implementation to verify the design.

November 2012- May 2013: American Tower /ATT Cary NC ( 4 venues)

RF DAS iBS design and Optimization Engineer.

Designed 2 venues; Kansas Speedway, and UNLV stadium (RSCP -75 for 90%, EcIo -8 for 90%, Best Server almost even % among sectors; SHO 80% for >5dB. LTE RSRP, RSRQ are equivalent parameters, but at different levels, to RSCP, and EcIo

Foot print Optimization and improve sector Isolation of TSU Stadium outdoor DAS in Dallas Fortworth, TX.

DAS parameters optimization and supervising Shakedown and drive test of TSU outdoor DAS, in San Marcos, TX as well as Interference mitigation (with Public Safety).

April 2011- Nov. 2012: Alcatel Lucent; in Vancouver, and Ericsson; in Toronto, Canada (9 venues)

RF DAS IBS Design and Optimization Engineer.

Review Design in Building DAS systems using iBwave. Examine and analyze the collected CW and on Call Test Data and validate it for post processing. Deliver equipment list, Link Budget, coverage, Handover plots.

Post Process the RF Collected RF Test Data using Gstation Software, and report on the bad KPI indicators such as UE Tx % of high values, Low Ec /Io or RSRQ & CQI (for LTE), poor RSCP, or ( RSRP & RNTP for LTE) for no dominant server (pilot pollution), poor SIR for UMTS or HII (for LTE), or poor isolation (RF bleeding, sectors interleaving).

Diagnose the poor performance Integrity or retain-ability KPI (for served technologies) and suggest changes in network parameters such as neighbor list add/remove sectors, (for UMTS UE Tx power, SHO Add/replace/Remove Thresholds and Trigger Timers), Antenna tilting / orientation, etc. to improve KPI.

For RF Design: Propagation Model calibration, Network sizing (number of sectors) based on anticipated offered traffic load & Blocking rate. Ensure that no IM products expected when we have multi-sectors, or multi-systems or operators sharing a DAS backbone. Interference analysis and mitigation, RF Human Exposure calculations (FCC B. 65, or Industry Canada Code 6).

Dec 10 – March 2011: Power Wave WMATA Project in Greater Washington DC area, Vienna, VA

Lead Engineer for RF test data analysis of Wide Band (137 Mhz -2700 Mhz covering LMR, UMTS, LTE, CDMA, GSM, iDEN, and WiFi) served on Indoor IBS DAS of WMATA project using Actix and Agilent 6474 (JDSU) SW tools.

Post process using Actix RF test data, and Plot on MapInfo the KPI parameters such as UE Tx Pwr, Ec/No, RCSP_0, Sc_0 SIR, # of active pilots, etc. for UMTS/ LTE.

Identifying performance problems, and conclude if it stem from the carrier Macro sites side or DAS system side. Suggest specific network parameter alignment to resolve any KPI issue, and order walk retesting after implementing the alignment.

August 10 – Nov 2010: Cox communications in W. Warwick, RI

RF Design Engineer, using PlaNet Ev, Validation of 49 Outdoor DAS CDMA 2000 (all EVDO revs are under CDMA 2000), Huawei equipment, and model tuning using Planet 5.2.

April 2010- June 2010: ZTE, Kansas City.

CDMA 2000; RF Network planning Engineer,

Using Planet Ev as a part of Proposal for Sprint to redesign the whole national CDMA network using ZTE equipment and configuration using Planet, to show quantified improvements (coverage or capacity or both) in some markets.

January 09- Dec 09: ClearWire Inc, Kirkland, Seattle Area WA.

WiMax 3G- RF network design Engineer,

For 60 sites, design and developed a link budget, for a good cell site coverage, attend zoning hearing, perform PN Code planning, traffic analysis/modeling, interference inter-modulation analysis for co-location, develop Search rings, and network sizing.

Microwave Link design, survey and evaluation. Using PathLoss V.4 tool, ensure Link availability over the required path considering the terrain Profile, available Ant height, equipment Specs frequency band, & Link Budget, Bandwidth, area Rain average.

March 04 – Dec. 08: Sprint/ Nextel in Columbia, MD:

RF Design Lead Engineer

Applied all RF activities for RF network design, as stated above in other projects, on CDMA & iDEN, using Wizard & Planet Ev including link budget, cell site evaluation and zoning hearing, PN Code planning, traffic analysis/modeling, interference inter-modulation analysis, develop Search rings, technology assessment, and network sizing. I used Motorola IOS iDEN Performance Metrics Analysis, where measurement data is collected from provisioned mobiles instead of CW drive test units. IOS delivers hardware, Neighbor Add/delete, and C/I matrix for use in Frequency Planning in Cell Opt. Optimized propagation model based on imported Drive test Data (using Agilant).

For outdoor DAS, used Waveisght Ray tracing model for Sprint (for Active) to improve coverage (FER for CDMA, SQE for iDEN), used Fiber cables for some indoor DAS nodes using iBwave tool. Identify and justify Macro /Micro sites to be converted to outdoor Das sites. Link outdoor DAS sites with Microwave (for Active systems) to Donor BTS, calculate Link budget, Site Survey to plot measured RSSI, FER, and RF Human Exposure calculations (FCC B. 65, or Industry Canada Code 6).

July 03 - Feb 04: Sprint PCS, Chicago,

RF Design Lead Engineer

Led 5 other 5 engineer, for RF network expansion of 250 sites using Planet Ev on Motorola CDMA 2000 (basis for WCDMA). That involved RF drive test data analysis for propagation modeling, using Planet, BTS (NodeB) & Cluster boundaries (to limit re-homing, and handoff counts), link budget, cell site evaluation and zoning hearing, PN Code planning, traffic analysis/modeling, interference inter-modulation analysis, develop Search rings.

July 02- July 03: Super Conductor Technology, Santa Barbara CA;

RF design and modeling Engineer

Simulate and model the effect of Noise Figure reduction on the CDMA/ WCDMA BTS (integrated as Node B in UMTS, is basis for UTRAN). traffic and coverage. Led a development team, Authored specification and test plan for a software tool to simulate, in conjunction with SignalPro® of EDX/Comarco Design Tool. The software module quantifies the improvement by using HTS products in one or more sites. The improvement could be used for more traffic or wider coverage area, or mix of both.

May 01 – April 02: Airgate PCS, Charleston, SC;

RF Design Engineer

Expanded existing Sprint PCS /Lucent CDMA-EVDO network by 140 sites and adding a second carrier using PlaNet. That involved RF network planning, and RF optimization as well as ECP Switch Autoplex 1000 translation configuration.

2/98 – 4/01 Modis -Idea Integration Inc., Oak Brook, IL

QA System Engineering Manager (4 years SW development).

I managed SW development projects from $2M to $22M. That includes creating project scope, schedule, defining roles and responsibilities, mile stones / dependencies, change control, resource management, risk management, and mitigation procedure, training planning, budget management, progress porting and vendors activities co-ordination.

For Lucent Technologies in Red Hill, New Jersey, and AT&T Cincinnati, OH.: Maanaged a group of 7 system testers for ConnectVU configuration and provisioning Software. ConnectVu software is WEB Client-Server based, Object Oriented interface layer on Windows NT(client), to provision the digital switches 5ESS and DMS-250.

For Lucent Technologies Intelligent Network Unit (INU Now ALINU) Naperville, IL, on UNIX platform: Managed a team of (7-12) S/W engineers in SCP R02 Feature Testing project, and authored a number of Feature Specifications Requirement Documents (FSD). Testing responsibilities included plan projects, write Test plans and procedure, update status and monitor and report team progress according to ISO-9001.

For William’s Communications Group “WCG” in Tulsa, OK: Applied highlights of QA management above on Service Delivery Administration system using SQA automated test tool for stress testing. Writing Test plans for stress, integration and System tests, customer interfacing, writing system operations documentation, system performance analysis, quality assurance reports.

9/97 – 2/98 Motorola/ PrimeCo, Lombard, IL

Senior Technical Consultant. (1 year CDMA performance analysis)

Analyzed, using CDMA Motorola OMC Monitoring System on UNIX platform, the overall CDMA –IS 95 PCS system performance statistics for call setup/RF loss, call completion/drop rate, and Grade Of Service. Analyzed data and identified malfunctions commonly caused by devices such as BTS (called Node-B in UMTS), BTSLINK or a specific PCB card in the MSC switch (Transcoder or FEP), or BSC. Based on switch translation parameters analysis, recommended a change of cell parameters such as pilot power, hand-off thresholds, power control thresholds, neighbor list or order a RF drive test.

1/94 - 8/97 Mobile Systems International, Oak Brook, IL

Applications Principal Consultant. (1 year CDMA, 3 years SW)

Added and Developed new application Moduls Specifications for 3 software tools into PlaNet tool: RF IM calculation; Paging traffic calculations for mixed formats (FLEX, POCSAG, GSC, ERMES); and RF Simulcast propagation for Paging networks. I implemented the traffic model I developed and called “Common Pool” for digital trunking for cross vendors inter-operability (APCO-25 &TETRA).

I also applied activities of RF planning using PlaNet design tool modules, on a new CDMA-95, 1900 network overlaid on iDEN network for ClearNet of Toronto, Canada.

EDUCATION:

BSCS 2nd. Degree, UALR, Little Rock, Arkansas, GPA 3.55/4.

BSEE 1st Degree, Cairo University, Cairo Egypt, GPA 3.75/4.

SPECIAL TRAINING:

PlaNet RF Network Planning on different Technologies, London, UK

Lucent System Engineering Discipline, IIT Wheaton, IL

CDMA Motorola OMC-System Performance Monitoring and Analysis, Texas,

CDMA Lucent Design Performance Optimization “Course #CC-1422”, Whippany, NJ -

CDMA IS-95, Standard “Course #250” by Qualcomm, San Diego, CA -

Statistical Analysis Control, F.E. Johnson, Burnsville, MN-

Trunking Network Design, Motorola, Schaumburg, IL-

Microwave Link Design, Motorola – Schaumburg, IL

Contact this candidate