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RF Design Engineer

Location:
Los Angeles, CA
Posted:
September 23, 2016

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Original resume on Jobvertise

Resume:

Reno Khachatoorian

RF Engineer

* ******** *******

Name: Reno Khachatoorian

E-mail: acwqpa@r.postjobfree.com

* ******: 818-***-****

Work experience: 10+ years of experience in the wireless industry. Possess

strong background in, RF Design,

RF Optimization and NPI (Network

Performance Improvement) for multiple vendors.

Degree: BS in Telecommunications Engineering (majored in RF propagation &

Microwave)

2 Skills

Technical: RF Design (LTE, UMTS & GSM), Network Performance &

Optimization (LTE, UMTS & GSM), Planning, O&M

Operating Systems: WINDOWS, UNIX & LINUX (some)

Technologies: LTE, UMTS/HSPA (WCDMA), GSM/EDGE, Wimax, IPTV, FTTN/FTTX

Vendors: ERICSSON, NOKIA/NSN, HUAWEI

Operators: "ATT Mobility", Cingular, AT&T Wireless, T-Mobile, CLEARWIRE,

TCI

Optimization Tool: WATCHMARK/PROSPECT, OPTIMA, CNN, NetTrack (AT&T tool)

Propagation/Cell Planning Tool: Planet, TOTEM, TEMS Cell Planner, Asset/3G,

ATOLL (including LTE Training), ACP,

ALTARO

Post-Processing Tool: MapInfo, NEPTUNE, ACTIX

Drive Test tool: TEMS Investigation, NEPTUNE, Wind Catcher

Database Platform: MS Excel, SQL, MS Access, VBA (all, as a user)

Other Engineering Tools: ARES, ELP (FEI, SLI), CFAS, CLLI, "InPlace",

GRANITE, QuickBase, Siterra,

Test Equipments: Site Master, Several ANRITSU products (Power Meters),

Protocol Analyzer, Spectrum Analyzer

Good Technical knowledge: LTE/VoLTE, UMTS, HSPA parameters and "EMI and EME

Studying"

3 Special Skills

. Completely familiar with Radio Network Optimization procedure used by

Ericsson and offering analytical solutions on drive test and traffic log

files (both collection and analysis) on GSM & UMTS

. Good in, site performance improvement tactics, and KPI's detailed

knowledge

. Detailed information on EGDE/GPRS parameters (on multi vendor platforms)

. Providing Coverage & Interference analysis to provide solutions,

including INDOOR Coverage and performance

optimization (LTE/UMTS/GSM/EDGE/Wimax)

. Strong Site/Sector interference analysis (from adjacent cells, co

channel, high sites

. Experience with Automatic frequency planning for new sites or dual layer

sites

. Strong knowledge on physical parameter change (tilt, azimuth, height)

and RF parameter tuning, Neighbor planning (IRAT, eCSFB, LTE, UMTS,

GSM)

. Good information on IRAT handover (procedures, priority-setting

parameters, power margins, interference level

4 Professional Experience

T-Mobile Sacramento, CA

Sept 2014- Dec 2015

RF Engineering (RF Design & Optimization) Technology: LTE(AWS &

700), UMTS (C2, C3), EDGE

> RF Engineer (Design on LTE & UMTS, plus some optimization/NPI)

tools used: ASSET, Ericsson OSS, ACTIX, Microsoft

Visio, Microsoft EXCEL, "Streets & Trips",

Google Earth and some T-Mobile

tools including T-PIM, TrueCall, SORT.

Highlights and Responsibilities: As an RF Engineer, responsible for the

North and Central California RF Design and Optimization/NPI activities

for both LTE and UMTS network:

. Providing RFDS for the LTE or UMTS carrier addition of the existing

T-Mobile sites or LTE and UMTS new build sites for the entire

Sacramento and related markets (Fresno, Modesto, "Reno, NV")

. Pre-Lunch and some Post-Lunch Optimization of newly on air sites,

including bringing on-air the prepared

sites and the initial monitoring and the required optimization

. Responsible for the required optimization and Performance

improvement of the cluster, on a daily basis, based on the daily

Traffic reports (LTE, VoLTE, UMTS and 2G)

. Responsible, for the required site/cell performance improvement,

based on the customer complain tickets which includes "Traffic

Balancing/Shifting", "Coverage Improvement", "Identifying and

fixing the Coverage Gaps" and "Reporting about any Capacity

shortcoming to the Cluster Owners"

. Responsible for Specific Escalated Cases, assigned by RF manager,

based on any major network issues including but not limited to:

- Required Optimization and parameter modification,

- TEMS log files analysis and applying the required

changes (physical parameters, power)

- Reporting any hardware issue or alarms to the OMC or

"Field Operations"

- Suggesting capacity increase or sector addition to

existing sites

- Providing detailed reports and graphs about the

situation, before and after the optimization

. From November 2014, responsible for the "Drive Testing Teams"

activities supervision, including scheduling and organizing

multiple teams work (working hours, overtime issues), providing any

technical and non-technical support, and all the other related

activities, based on other engineers request for testing

San Francisco, CA CLEARWIRE Project

Sept 2013- July 2014

RF Engineering Technology: LTE, Wimax

> RF Engineer (Design on LTE & Wimax, plus some optimization/NPI)

tools used: Planet, Microsoft EXCEL, Google Earth

and some internal Ericsson and ClearWire tools

(iEDOS, M2000, ClearVision,

Highlights and Responsibilities: As an RF engineer, responsible for the

entire North California Design and Optimization/NPI activities for both

LTE and Wimax networks (SPRINT & CLEARWIRE):

. Checking the entire North California markets of Wimax network

performance and arranging for the required actions, through

informing the lead engineer of each region and to the approval of

the suggested solution to be applied to network

. Approval of the daily optimization and trouble-shooting tickets

performed by other groups

. Performing different Design Activities for several North California

markets using Planet including PCH planning checking, PCI

planning/checking for new and existing sites for LTE network.

. Performing several Optimization tasks, related to the new LTE

sites/clusters such as the post optimization related activities for

several markets.

. Performing several Optimization/NPI tasks, related to the existing

Wimax sites, to enhance the KPIs including load balancing of multi

carrier sectors, elimination of any possible interference issues

and sectors with high percentage of HARQ.

. As another part of the NPI activities, constant monitoring of low

performance sectors and reporting the ROUGE Devices to customer

support teams, to overcome the possible issues with the user

equipment, in order to enhance the overall markets KPIs. Some of

the tools used for this activity are developed by me.

. Providing monthly performance reports for the requested markets

within the required solutions and justifications about any low

performance carrier/sector, to National RF Team.

. New LTE network eCSFB neighbor planning (LTE to CDMA) and related

drive test and the initial pre-lunch optimization.

Memphis, TN

Mar 2013- Aug 2013

RF Design Engineering Technology: LTE, UMTS, GSM

> RF Design Engineer (RFDS & RF Plumbing Diagram) tools used: MapInfo,

Microsoft VISIO, EXCEL, and some

T-Mobile internal tools

Highlights and Responsibilities: As an RF Design engineer, responsible

for final approval of RFDS and "RF Plumbing Diagram" of the T-Mobile

network sites, for three major markets in South region:

. Creating RFDS/"Pluming Diagram" of all the Modernization sites, for

the entire Memphis, Jackson and Birmingham markets of T-Mobile

Network, based on the best Technical Judgment and least possible

change to reduce the cost and, provide the optimal RF solution, for

each site (LTE, UMTS, GSM)

. Taking part, in the initial and Final Technical scoping meeting for

each site, providing suitable RF solution, for each site, based on

the specific requirements

. Continuous update of the RFDS pages based on the feedback from

construction, "site ACQ" teams or structural reports and, offering

new solutions

. Reviewing Construction Drawings to make sure all RF information is

included, correctly.

. Providing the CIQ files, for the Modernization sites (the entire

region)

. Supporting the project different teams, on any technical

requirement and providing new solutions based on the market

requirements

San Francisco, CA Bechtel Telecom/Power

Jan

2012- Feb 2013

RF Design Engineering Technology: LTE, UMTS (F3, F4, F5), GSM

> RF Design Engineer (RFDS & RF Plumbing Diagram) tools used: MapInfo,

Microsoft VISIO, EXCEL, and some AT&T

internal tools

Highlights and Responsibilities: As an RF Design engineer, responsible

for final approval of RFDS and "RF Plumbing Diagram" of the AT&T network

sites, for the entire North California region:

. Analyzing and final approval of the RFDS pages, provided by drawing

teams, based on the requirements of the RF components, Zoning and

RF issues, FCC requirements and any possible obstacles, to provide

the optimal RF solution, for each site (LTE, UMTS, GSM)

. Studying and approving the final scoping notes of each site based

on the RF requirements and location restrictions of each site,

including any hardware (antennas, E-NodeB, NodeB and RBS, RRU)

change and relocation, to comply with zoning, FCC and any possible

local regulation

. Taking part in scoping meetings with local RF design engineers, to

decide on the best possible solution, for any site with LTE (700 &

AWS) addition by suggesting "harvesting" of older technology

equipment

. Detailed analysis and design of the PLUMMING DIAGRAM pages for LTE

and UMTS sites (new & carrier add), based on the required capacity

and coverage by suggesting the optimal hardware solution (TMA,

MCPA, RX-AIT) and antenna relocation.

. Detailed study of ZONING Drawings and Site/Construction Drawings

for compliance issues (FCC, FAA,

ERICSSON, Dallas, TX (Consulting)

May

2011 - Sep 2011

RF Engineering Technology: UMTS (F1, F2, F3)

> RF Engineer (Optimization & NPI) tools used: OSS (Ericsson), COMMON

EXPLORER, RNO, Business Object,

MapInfo,

MCOM and some ERICSSON internal tools (TMC, ITK, "ML Audit"

Highlights and Responsibilities: As an RF Optimization engineer,

supporting VA and WV post lunch optimization by monitoring the

performance of the "new and carrier add" sites/clusters of the entire

market plus, owning some

new and "carrier add" sites/clusters (responsible for the optimization

and target KPI's). The daily tasks included:

. Providing detailed KPI and performance report of the entire sites

and clusters of the market on a daily basis

. Performing all the required parameter changes within scope of the

work, to minimize the call drops (after the required audits done

and KPI's checked) along with additional neighbor/relation addition

. Detailed analysis of any possible interference (internal &

external) issue, hardware check and any other possible issues and

presenting the strategic solutions to the customer and obtaining

the approval to apply to the network (as a part of the optimization

task)

. Performing detailed parameter audit and alignment, as per the

specified standard and indicated regional values of the market

(using internal Ericsson tools and OSS). In addition, al the

parameters related to IRAT, soft handovers, IFHO handovers and

layer management, was included in the procedure.

. Providing the final closeout package after meeting the target KPIs,

within the agreed time, to obtain customer approval.

AT&T MOBILITY, San Francisco, CA (Consulting)

Jan 2011 - April

2011

RF Engineering Technology: UMTS/GSM/LTE and DAS

RF Engineer tools used: ATOLL,

MapInfo, EXCEL, QuickBase, CSS, GWS, NetTrack, Granite,

Ericsson Capacity calculator, TEMS POCKET

Highlights and Responsibilities: As an RF Design engineer responsible for

providing the PHASE1 TA documents for all the DAS (indoor & outdoor)

projects for the entire "Nor Cal and Reno" markets UMTS/GSM network (850

& 1900):

. Providing all the required information about the venue (plan, layout,

structure type effecting signal propagation

and the MACRO network situation (based on the two tier sites,

morphology, planned sites nearby

. Providing detailed peak foot-traffic of the location (venue, stadium,

building

. Calculating the 3G and 2G capacity of the DAS system, based on the foot-

traffic information, using the calculators provided by Ericsson

. Analysing the current indoor coverage of the "location", including the

MACRO network and any existing indoor coverage (based on ATOLL plots and

walk test result) and the performance of the MACRO network nodes on

certain days (event/game days for any stadium, arena, to highlight

the shortcomings of coverage or capacity

. Taking part in the required meetings, conference calls and technical

discussions about the project location, and the equipment to suggest the

best possible scenario for the DAS system (number of sectors & zones)

. Updating the records and the related database for the DAS projects

. Providing the Preliminary RFDS pages based on the initial capacity

calculation for DAS systems

. Performing the WALK-TEST (like drive test) for some of the venues to

figure out the existing indoor coverage of the MACRO network, or the

functionality of the new DAS system, before final approval

AT&T MOBILITY, Birmingham, AL (Consulting)

Sep 2010 - Dec

2010

RF Engineering Technology: UMTS, GSM

RF DESIGN Engineer tools used:

ATOLL, MapInfo, EXCEL and some AT&T internal tools

Highlights and Responsibilities: As an RF Design engineer responsible for

redefining and updating the ATOLL tool Database for AT&T Mobility UMTS

network (850 & 1900) for ALABAMA market:

. Providing a detailed analysis and update of all the current records in

ATOLL tool, including the technical & geographical information, such

as ANTENNA data base, propagation model, site location information

. Planning all the related information of the second, third and, forth

CARRIER of the existing sites, which will be used for future design

and optimization activities

. Updating antenna records in Atoll (based on the specification pages

and Electrical tilts)

. Updating all the existing sites information based on the latest RFDS

pages and construction information

AT&T MOBILITY, Birmingham, AL (Consulting)

July 2010 - Sep

2010

RF Engineering Technology: UMTS

RF DESIGN Engineer tools used:

ATOLL, ACP, ALTARO, MapInfo, EXCEL

Highlights and Responsibilities: As an RF Design engineer responsible for

"RF Design" of AT&T Mobility UMTS network (850 & 1900) for first and

Second carrier, using ATOLL:

. Providing RF Design and Plan of the new sites (including first &

second carrier) of UMTS network, and all the related issues such as

the NEIGHBOUR ASSIGNMENT (including IRAT ones), SCRAMBLING CODE

Planning and TRAFFIC ASSIGNMENT(using MONTE CARLO Simulation and

traffic maps) for the three Alabama, Louisiana and Mississippi states

(for all services such as VOICE, HSPA, R99). All are done based on

ATOLL features.

. Suggesting all the required changes (tilt, azimuth, power change)

based on analyzing the network or ALTARO (included in ACP tool

package)

. Creating new RFDS pages for all the UMTS sites for the above-mentioned

states, including all the design requirements.

. Defining the clusters and preparing the design plan of the NEW Sites

(NSB) for the entire market (MapInfo), based on the latest RFDS and

vendor information

AT&T MOBILITY, New Orleans, LA (Consulting)

April 2010 - July

2010

RF Engineering Technology: GSM

RF DESIGN Engineer tools used:

ATOLL, MapInfo, EXCEL

Highlights and Responsibilities: As an RF Design engineer responsible for

filing AT&T Mobility '850 FCC license' of CGSA (Cell Geographic Service

Area) Boundary Sites:

. Providing detailed analysis of the existing network, to figure out all

the coverage issues of each area (CALL SIGN as per FCC) to figure out

all coverage short comings and assigning the best BOUNDARY SITES in

Louisiana

. Applying all the required changes (tilt, azimuth, power change) or

changing antennas based on BUDGET LINK Calculations and the antenna

specs, to cover further distance or shape the coverage and fit in the

assigned boarders or to cover any area without coverage

. Applying any physical or parameter change (power, to all the

boundary sites to comply with FCC regulations and limitations

. Providing all the required information for Extension agreements with

other Cellular Companies

NSN/AT&T MOBILITY, Redmond WA (Consulting)

Jan 2009- Sep 2009

RF Engineering Technology: UMTS, GSM, EDGE

RF Engineer tools used: SQL/PL,

WATCHMARK/PROSPECT, CNN, EXCEL, MapInfo

Highlights and Responsibilities: As an NSN dedicated RF resource

(technical support) in AT&T Mobility RF/RAN Headquarter:

. Providing constant technical support to the AT&T local RF engineers,

on RF network optimization and all the related "BSS and RF parameters"

as was requested (for 2G & 3G) including Neighbor planning (UMTS, GSM,

IRAT)

. Providing detailed analysis and solutions on several cases of high

interference and drop call issue on several sites in the cluster

(optimization & performance monitoring)

. Continuous monitoring on problematic area sites including all the

usual "KPIs" as per customer request, including weekly Scorecards, and

providing technical solutions

. Taking part in the BSS software upgrade related activities especially on

the RF and performance issues and, all the new features of the new

software version, with direct impact on radio network, based on the latest

ETSI and 3GPP specification

. Providing detailed information on "IRAT HANDOVER and CELL

SELECTION/RESELECTION" parameters, to AT&T engineers

. Being involved in "National COVERAGE Project" and Network Churn

activities, as the main contact person for all the activities, related to

NSN (SIEMENS) markets, and reporting the market feedback to the RF

management

. Link budget analysis for different voice and data services in areas with

drop call issues

. Analyzing the existing RFDS plans, providing some comments and solutions

ITC/AT&T West, Los Angeles (Consulting) June 2007- Aug 2008

Design/Planning Technology: IP-TV

> Design Engineer tools used: ARES, ELP (FEI,

SLI), CFAS, CLLI, InPlace, EXCEL, VBA

Highlights and Responsibilities:

. Post Processing and Final Approval for all "DA" Plans, according to

the schedule from project manager, for the entire Los Angeles and

Ventura counties

. Requesting all the needed TI and ATI tests, and applying the result

and the needed changes to the system

. Providing LOOP Length calculations and applying the changes wherever

applicable

AT&T West/Nokia (Consulting)

Aug 2006 - Dec 2006

RF Engineer Technology: GSM, GPRS, EDGE

> RF/Performance Engineer tools used: NETDOCTOR, NETACT, BTS MANAGER,

HUB MANAGER,

NODE MANAGER, MML, EXCEL, VBA

Highlights and Responsibilities:

. Constant VOICE and DATA performance check for all the new or upgraded

sites through KPIs checking, and providing solutions for any issue

degrading the performance (TRX/sector level)

. Request for site revisit and providing guidance for field engineers

(in site) on all RF issues

. Checking for all the RF parameters of the site, that effects quality

and performance

. Alarm checking for all the hardware and "antenna line" issues

AT&T (CINGULAR)/NOKIA (Consulting) Oct 2004 - Aug 2006

RF Engineer Technology: GSM, GPRS, EDGE

> RF Parameter Trouble shooting (for the entire west coast markets,

including several swap projects)

Highlights and Responsibilities:

. Supporting the creation of new sites in BSC, by correcting/updating

the RF parameters in the RF data fills, to comply with the system

database

. Supporting the integration technicians in the field and in the office,

during the integration, to be able to initialize call set up on new

sites, and providing any RF technical support to activate sites

completely, including the initial optimization

. Creating and recreating the site neighbors to overcome any call-drop

issues

AT&T (Consulting) November 2003 - Oct 2004

RF Engineer Technology: GSM, GPRS, EDGE, (UMTS only training)

> Providing RF Data-Fill Providing RF data-fill of all new sites for

the entire southern California cities, as the main

contact person, for new

builds

Tools used:

EXCEL, MML, Granite, SQL/PL

Highlights and Responsibilities:

. Providing RF data fill for all the new sites, in southern California,

within all the required changes to RF and BSS parameters, to comply

with BSC parameter update

. Providing RF data fills for the 850-overlay and Simple Growth

projects, including all the RF and BSS parameter changes, new ADCE

list and some other parts

. Providing Re-dimensioning of the T1s(due to capacity change) and

Requesting all the needed "T1"s and

frequency plan (based on the predicted traffic)

. Applying all the required values for the EDGE and GPRS parameters,

as per latest project policy

. Loading the "new sites" and "sector add sites" CIDs, in MSC and

BILLING CENTRE, and E911 platform

TCI (Middle East) February 2000 - April 2003

RF Engineer Technology: GSM, EDGE

> RF Engineer (Optimization & Performance)

Tools used: TOTEM, TEMS (POCKET, INVESTIGATION, CELL-PLANNER), ASSET,

NEPTUNE, "SAM & TOM", OPTIMA, MapInfo, VISIO and MML

An RF engineer in the optimization team, responsible for the

network with ERICSSON & NOKIA systems

for the biggest metropolitan area in the country (900 MHZ). This

job included a few swap projects and

the afterwards optimization (Always, meeting the deadlines)

Highlights and Responsibilities:

. Checking Traffic reports (including from OMC & BSC) and analyzing

the files, to improve sites with poor performance (high dropped

call & low success setup rate)

. Requesting drive test for the needed areas and post processing the

log files

. Prepared drive routes for benchmarking and coordinating with drive-

test teams.

. Analyzed drop calls, blocked calls and call failures using post-

processing tools.

. Providing RF solutions to enhance site/network performance in order

to overcome network shortcomings, coverage holes and high

interference areas (including RF and physical parameters change,

neighbor addition/deletion plus, capacity increase and new site &

zone request) for both ERICSSON and NOKIA clusters

. Offering solutions for HIGH SITES such as height, tilt and azimuth

change to catch more hidden traffic and decrease interference level

(plus antenna system enhancement, if applicable)

. Providing automatic or semi-automatic ADCE list (Neighbor plan) and

frequency information for new sites or capacity increased sites.

. Studying geographical areas for natural and man-made obstacles and

issues and suggesting candid areas/zones for new sites, considering

all the natural terrain characteristics, to overcome the high

dropped call issues (high traffic issues)

. Providing monthly reports per LAC/BSC, based on KPIs, to

supervisor/manager and taking part in network performance

evaluation meetings

. TRAFFIC ENGINEERING on high-traffic sites (by coverage area change)

to spread the traffic among low and high traffic sites evenly

. Providing RF Design for some new sites on two new BSCs (ERICSSON &

NOKIA), due to some swap required, and the afterwards optimization.

Education:

B.S. in Telecommunications Engineering (Based on Electrical Eng.

program)

Some of the courses studied are as follows:

. Antenna theory and principals (Gain, Polarization, Radiation Pattern,

Link budget,

. Engineering Microwave (Principals, couplers, attenuation, propagation

models)

. Electromagnetic Waves and Propagation (propagation/energy modes, path

loss, ... )

. Engineering Electromagnetic (electric/magnetic fields, path loss,

Maxwell laws,

. Satellite Communications (Principals, Components, Free space loss,

Link budget,

. Traffic distribution in Networks (Principals & Theory, Erlang

formula & calculations, Topologies,

. Digital & Analog Systems (All modulations like GMSK, CDMA, FM and

others in detail, Fading modeling such as

Railey, Information Theory

5 Training: overall about 900 hours

Certificate Name Training Institute Location Year

GSM (basic & advanced courses for 330 hours) TCI Tehran 2000

Advanced Signaling CCS7 TCI Tehran 2000

RF Design & Model Tuning TCI Tehran 2000

BSS Parameter Analysis TCI Tehran 2001

NOKIA BTS (parts & dimensioning) TCI Tehran 2001

ERICSSON RBS 2000 (parts & dimensioning) TCI Tehran 2002

Optimization, advanced Cell Planning & ASSET AIRCOM Tehran 2002

Traffic Engineering & Distribution, TCP/IP and AIRCOM Tehran 2002

CONNECT/DIRECT (AIRCOM Link planning and

BACKHAUL planning Tool)

GPRS Technology AIRCOM Tehran 2002

BSS Planning Workshop AIRCOM Tehran 2002

BSS Optimization Workshop AIRCOM Tehran 2002

UMTS AWARD SOLUTIONS Los Angeles, CA 2004

ARES AT&T Los Angeles, CA 2007

LTE AT&T On Line 2009

Cellular License & FCC RF Regulations AT&T On Line 2010

ATOLL (LTE, DAS & iBWAVE interface) AT&T/FORSK Pleasanton, CA

2011

UMTS Advanced Competence Optimization Ericsson Dallas, TX 2011

6 References

Furnished upon request

1



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