Reno Khachatoorian
RF Engineer
Name: Reno Khachatoorian
E-mail: acwqpa@r.postjobfree.com
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
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