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PhilipVilladoz Mariano
Cluster 20 Unit 8i Cambridge Village, Brgy. San Andres, Floodway, Cainta, Rizal, Philippines
Philippine Mobile: +63 9189641908
pvmariano@yahoo.com; pvmariano83@gmail.com
Personal Background
 More than 10 yearsof experience inTelecomindustrywith knowledge inRFEngineeringand
Optimization
 Experience inLTERoll-Out
 Most experience inRFPlanningandoptimizationfor UMTS and LTE
 Knowledgeable inall typesof Drivetest equipmentsuchasNEMO, TEMS and Agilent
 ProficientindifferentOptimizationtoolssuchasACTIX,NEMOAnalyzerand RANOPT
 ExperiencedinRAN parameterplanningand tuningof RAS06, RU10, RU20, RU30 and RU40
Nokiaequipment
 Knowledgeable inNokiaNetactandPlaneditTools
 Knowledgeable inHSDPA featuresactivationandHSDPA KPITuning
 More than 2 years of experience in SingleSite SurveyandPlanning
 Knowledgeable inutilizingdifferentdrivetestequipmentsuchasNEMO and TEMS
 Knowledgeable inperformingGPRS/EDGE/HSDPA testusingdrivetesttools
 Experienced in 3G and 2G RF TSSR, antenna sectoring and identifying coverage objectives
 Experienced in Line-of-Sight (LOS) surveys, Transmission Link Budget/Path Profile Calculation
 Responsible and assertive team player with consistent performance
 Skillful at identifying action plans and imaginative in achieving results
 Effectively manage/coordinate within drivetest team
 Active and self-assured individual who happy working with people
LTE Parameters,Features and Physical Tuning
 Involve in Analyzing and investigating DT logs like for Low Throughput test checking its RF conditions
like MCS value, MIMO usage, SINR value, CQI and Resource block usage, based on this analyzing and
trying to suggest some Tilt changes or PCI changes to improve SINR and checking CQI threshold so
that can be improved as well as Attach Procedure Success Rate, Attach Procedure Setup Time , ERAB
establishment Setup Time , ERAB Abnormal Release Rate..
 Involve in LTE KPI Monitoring Accessibility KPI’s like RRC, ERAB Setup,S1,Radio Bearer, RRC paging
Discard success rate, Usage KPI’s Cell availability, Resource block usage, PDCP layer throughput,
Incoming/Outgoing Signaling Throughput on X2, Active UE’s per NodeB, Retainability KPI’s like
RRC,ERAB drop rate, IP Incomingtraffic error rate, Mobility KPI’s Intra/Inter EnodeB HO success rate,
Ho preparation HO success rate Inter NodeB X2 based, Quality and Power KPI’s Average Latency,
Average CQI, Average RSSI for PUCCH and Average SINR for PUCCH.
 Involve in Checking and Improvement of MIMO KPI’s by first analyzing the MIMO Settings (TxDiv,
Static Open Loop MIMO, Dynamic Open Loop MIMO and Closed Loop MIMO) and by investigating the
configuration of MCM and by improving with MIMO support parameters dlMimoMode,
mimoClCqiThD, mimoClCqiThU, mimoClRiThD, mimoClRiThU, mimoOlCqiThD, mimoOlCqiThU,
mimoOlRiThD and mimoOlRiThU.
 Involve in improvement of Accessibility KPI’s Paging setup success rate by first analyzing Paging
discards requests and transmitted RRC paging messages and by optimizing parameter like paging
cycle and number of paging occasions.
 Involve in improvement of Accessibility KPI’s like RACH setup success rate by first analyzing RACH
setup attempts, EnodeB receive preambles and RACH setup completions and by optimizing
parameter PRACHconfindex, PRACHCS, PRACHpwr and ramp,ulpclniprepwr and cyclic shift.
 Involve in improvement of Accessibility KPI’s like RRC setup success rate by first analyzing the cause
which might be due to RRC protocol error, SRB setup failures,rejections due to RAC and by optimizing
parameter of Admission control like Max Number of RRC connections, Max num of Active users, Max
num of users per TTI
 Involvein improvement of Accessibility KPI’s like ERAB setup success rate by first analyzing the Radio
Bearer setup failures which is due to RRC connection Reconfiguration failure and S1 Bearer setup
failures which has two parts Initial context Setup request which is no response from MME and Initial
context Setup response which might be due to no response from MME. Involve as well Involve in
improvement of Retainibility KPI’s like ERAB Drop rate by first analyzing the cause which might be
EnodeB or MME initialted failures and are due to radio link failures or transport failures, and can be
improved by optimizing parameter like Inactivity Timer etc.
 Involve in improvement of Bearer management by setting Quality of service parameters like QCI and
its mapping with GBR and Non GBR resource types, ARP allocation and retention priority, ANP-AMBR
and UE -AMBR which is APN and UE aggregate max bit rate, Guaranteed Bit Rate and Max Bit rate.
 Involve in improvement of Cell Edge Behavior. Inter cell Interference and power consumption by
setting UL power control parameters UlpcUqualSch,UlpcUqualCch,UlpclowqualSch,UlpclowqualCch,
UlpcUlevlSch, UlpcUlevCch, UlpclowlevlSch, UlpclowlevCch, and by setting different schemes like
conventional or fractional schemes which increases /decreases UE power based on path loss or by DL
power control parameters like Pmax and dlCellPwrRed.
 Involve in improvement of Mobility KPI’s like Intra NodeB HO by first analyzing X2 interface setup
between EnodeB by checking the configuration and checking IP routes for X2 Sites if properly
assigned based on plan. Troubleshooting X2 by requesting Ping test from NodeB to MME and also
checking control plane IP address for X2 and verifying it, Analyzing HO stats by checking cause HO
preparation not started as condition event A3 and A5 not met or Admission control and resource
allocation on Target Cell, Ho failures due to timer expires. Also investigating the transport load
measurements to check Incoming/Outgoing signaling and User plane data Volume to check overall
impact of Data volume on X2.
 Involve in discussion of setting layering Strategy for Idle mode parameters like Sintrasearch,
Snonintrasearch, Qrxlevmin, Qrxlevminoffset, threshSrvLow, UtraFrqThrL and its relection to 3G by
setting qRxLevMinUtra, qQualMinUtra, pMaxUtra.
 Involve in discussion of setting layering Strategy for connected mode parameters like threshold1,
Threshod2a, hysThreshold2a, Threshod2WCDMA, hysThreshold2Wcdma, b2Threshold1Utra,
hysB2ThresholdUtra, b2threshold2UtraRscp, Threshold3a, Threshold3, a3Offset and
a3TimeToTrigger, etc.
 Involvein implementing CS Fall Back feature by settings parameters of CSFB likeAct CSFB, csFallBPrio,
redirFreqEutra, redirGeranBandIndicator, redirRat and redirectPrio etc.
 Involvein improvement of Throughput by improvingSINR which is usual ly doneby tilitingSites and by
changing PCI, Rach Root Sequence and deleting LNREL to refresh LNBTS relations
 Involve in activating UE-based ANR for intra-Frequency LTE(actUeBasedAnrIntraFreqLte)
 Involve in proposing physical tuning like tilting and repanning as well as proposing new sites for the
areas with poor coverage/coverage hole
3G Parameters, Featuresand Physical Tuning
 Involve in 3G 2100Mhz Band For RF Sharing and 850Mhz Band(Philippines)
 Involve 3G 1900Mhz Band and 850Mhz Band(Colombia)
 Involve in checking of scheduler and Tcell before and after RF sharing
 Involve in checking and modification of commissioning values and TCELL values based on vendors
Node B Configuration Policies
 Handles Clusters with Team Leader for coverage / quality improvement
 Checking the HSDPA and HSUPA Processing set values
 Checking throughput steps before and after RF sharing
 Checking of CE capacity that will affect the KPI performance
 Involved in Cluster Optimization in terms of L1 Optimisation and HGA antenna replacement
 Check/Analyze Drivetest result before and after Swap and Cluster optimization reports
 Involved in recommending neighbor addition and deletion for alignment
 Prepares xml’s for parameter/neighbors modifications
 Support OSS team in major KPI extraction
 Monitor daily KPI’s, ensuring to be equal or better than before Swap
 VAM Power Settings alignment in terms of parameters (such as PtxPrimaryCPICH, PtxCellMax,
PtxMaxHSDPA, PtxTarget, PtxHighHSDPAPwr, PtxTargetPSMax, PtxTargetPSMin, PtxDLabsMax,
CPICHtoRefRABoffset)
 3G HSPA / Dual Cell alignment in terms of parameters ( such as MaxNbrOfHSSCCHCodes,
HSDPA64UsersEnabled, PtxPrimaryCPICH, HSDPA64QAMallowed, HSPDSCHCodeSet, Tcell,
CPICHtoRefRABoffset, HSDPAenabled, DirectedRRCEnabled, HSPDSCHMarginSF128,
CellWeightForHSDPALayering, DCellHSDPAFmcsId, DirectedRRCForHSDPALayerEnabled,
HSDPALayeringCommonChEnabled, HSPAFmcsIdentifier, DCellHSDPAEnabled, HSUPAEnabled,
MaxTotalUplinkSymbolRate)
 RF troubleshootingfor problematic includes frequency changes, adjacency modifications,power
modifications,and scramblingcodes verifications
 Identify and prepares daily worstperforming cells,ProvideCapacity upgraderecommendation for
congested sites,Network Level Parameter Discrepancy auditand modification
Employment History
July22, 2015 – November 30, 2015
Aircom International
Nokia - Smart Communications 3G/LTE Project
RF Engineer/Optimization
 Working withClient'sTeamLeaderin3G andLTE Roll-Outof NokiaforSmart
 AttendingonClient'squeriesandrequirements
 Checking/exploringparametersdiscrepanciesinLTE
 Checking/exploring3Gparametersdiscrepanciesandcommissioninglicensesandcapacity
NodeBsConfigurationandClient's Policies
 InvolvedinKPImonitoring afterLTEImplementation
 Involvedin3G KPImonitoring
 Check/Analyze DrivetestresultsforSSOandClusterReports
 Involvedinrecommendingneighbors aswell asneighboraudit(LTEand3G)
 Preparesxml’sforparameters/neighborsmodifications
 Attendtocustomercomplaintandpropose solutionsorrecommendation
Affiliate Responsibilities
 Involve in existing and new 3G / LTE FDD Sites Planning and Optimization
 Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.
 Prepare SCF file with default initial parameter settings.
 Involve in defining Adjacencies (LNADJ/LNADJL)
 Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned
and involve as well in checking application addresses if properly assigned
 Involve in L1 Optimization for Single site and Cluster DT and KPI's improvement such as repanning,
tilting etc.
 Involve in analyzing DT results for Single site/Clusters before and after physical tuning
 Prepare SCF file with default initial parameter settings.
 Checking / setting parameters for Reselection from 3G to LTE.
 Checking / setting parameters for CS Fall back.
 Checking / setting parameters for LTE to 3G Handovers.
 Checking default parameters for DRX.
 Enabled CS Fallback to UMTS
 Parameter checking / alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..
 Involve in checking / defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE
<-> LTE
 Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G
 Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<-
>3G
 Checking and modification of 3G sites commissioning values and TCELL values based on Node B
Configuration Policy
 3G Parameters/Neighbors audit and XMLs creation for necessary parameters modification and
ADJS/ADJI definition
March 3, 2014 – July10, 2015
OSC Telecomsand Security Solutions, Bogota - Colombia
NSN - CLARO for 3G/LTE Project( Cali City,Colombia )
RF Engineer/Optimization
 Working withClient'sTeamLeaderinLTE Roll-Outof NSN forClaro
 AttendingonClient'squeriesandrequirements
 Checking/exploringparametersdiscrepancies inLTE
 Checking/exploring3Gparametersdiscrepanciesandcommissioninglicensesandcapacity
basedon RU40 NodeBsConfigurationandClient's(Claro) Policies
 InvolvedinKPImonitoring afterLTEImplementation
 Involvedin3G KPImonitoring
 Check/Analyze Drivetest resultsforSSOandClusterReports
 Involvedinrecommendingneighbors aswell asneighboraudit(LTEand3G)
 Preparesxml’sforparameters/neighborsmodifications
 Attendtocustomercomplaintandpropose solutionsorrecommendation
Affiliate Responsibilities
 Involve in 269 Existing and New 2600Mhz Band FDD for LTE Sites Planning and Optimization
 Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.
 Prepare SCF file with default initial parameter settings.
 Involve in defining Adjacencies (LNADJ/LNADJL)
 Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned
and involve as well in checking application addresses if properly assigned
 Involve in L1 Optimization for Single site and Cluster DT and KPI's i mprovement such as repanning,
tilting etc.
 Involve in analyzing DT results for Single site/Clusters before and after physical tuning
 Prepare SCF file with default initial parameter settings.
 Checking / setting parameters for Reselection from 3G to LTE.
 Checking / setting parameters for CS Fall back.
 Checking / setting parameters for LTE to 3G Handovers.
 Checking default parameters for DRX.
 Enabled CS Fallback to UMTS
 Parameter checking / alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..
 Involve in checking / defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE
<-> LTE
 Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G
 Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<-
>3G
 Checking and modification of 3G sites commissioning values and TCELL values based on Claro's RU40
Node B Configuration Policy
 3G Parameters/Neighbors audit and XMLs creation for necessary parameters modification and
ADJS/ADJI definition
January23, 2014 - February23, 2014
IGTL Network ServicesPhilippinesInc.
NSN - San Miguel CorporationLTE Project
RF Engineer/Optimization
 HandlesClusters withTeamLeaderinLTE Roll-Outof NSN forSan Miguel Corporation
 InvolvedinKPImonitoring afterLTEImplementation
 Check/Analyze DrivetestresultsforSSOandClusterReports
 Involvedinrecommendingneighbors aswell asneighboraudit
 Preparesxml’sforparameter/neighborsmodifications
 PreparesFinal Acceptance reportsforSSOandClusters
 HandlesAcceptance Reportpresentationtothe customer.
 Attendtocustomercomplaintandpropose solutionsorrecommendation
Affiliate Responsibilities
 Involve in initial 87 Roll-out 700Mhz Band FDD for LTE Sites Planning and Optimization
 Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.
 Prepare SCF file with default initial parameter settings.
 Involve in defining Adjacencies (LNADJ/LNADJL)
 Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned
and involve as well in checking application addresses if properly assigned
 Involve in L1 Optimization for Single site and Cluster DT and KPI's improvement such as repanning,
tilting etc.
 Involve in analyzing DT results for Single site/Clusters before and after physical tuning
November1,2012 - December31,2013
Aircom International
NSN - Smart Communications 3G RF Sharing/LTE Project
RF Engineer/Optimization
 Handlesareawith TeamLeaderin LTE Roll-Outof NSN forSmartCommunications
 InvolvedinKPImonitoringafterRFSharinginpreparationforLTE
 Check/Analyze Drivetestresultbefore andafterRFSharingto checkthat there are no
degradation
 Involvedinrecommendingneighboradditionanddeletion(ADJL),aswell asneighboraudit
 Preparesxml’sforparameter/neighborsmodifications
 SupportOSSteam inmajor KPIextraction
 MonitordailyKPI’s,ensuringtobe equal orbetterthanafter RF Sharing/LTEImplementation
 PreparesFinal Acceptance report
 HandlesAcceptance Reportpresentationtothe customer.
 Attendtocustomercomplaintandpropose solutionsorrecommendation
 AchievedKPIsmore than99%
Affiliate Responsibilities
 Involve in 500 sites 3G 2100Mhz Band For RF Sharing
 Involve in checking of scheduler and Tcell before and after RF sharing
 Checking the HSDPA and HSUPA Processing set values
 Checking throughput steps before and after RF sharing
 Checking of CE capacity that will affect the KPI performance
 Involved in 500 sites 2100Mhz Band FDD Phase 1 and 2 Roll Out for LTE Sites Planning/Optimization
 Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.
 Plan TAC borders base d on LTE criteria for selection.
 Involve in planning X2 for LTE Sites.
 Prepare SCF file with default initial parameter settings.
 Set default parameters for Reselection from 3G to LTE.
 Set default parameters for CS Fall back.
 Set default parameters for LTE to 3G Handovers.
 Set default parameters for DRX.
 Propose EARFCN for LTE Band.
 Involve in defining neighbor relations via PCI mapping
 Enabled CS Fallback to UMTS
 Parameter alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..
 Involve in defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE <-> LTE
(NSN/HW equipment)
 Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G (F2/10587)
 Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<-
>3G (F1/10562 & C1/4362) ; REDRT for C1/4362 is created only for co-site.
 Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned
and involve as well in checking application addresses if properly assigned
July1, 2009 - October31, 2012
Aircom International
NSN - Smart Communications2G/3G/HSPA/HSPA+/Dual Cell and ModernizationProject
RF Engineer/Optimization
 HandlesareawithTeamLeader in3G SWAPfrom Ericssonto NSN
 InvolvedinClusterOptimizationintermsof L1 Optimisation andHGA antennareplacement
 Check/Analyze Drivetestresultbefore andafterSwapandClusteroptimizationreports
 Involvedinrecommendingneighboradditionanddeletion
 Preparesxml’sforparameter/neighborsmodifications
 SupportOSSteam inmajor KPIextraction
 MonitordailyKPI’s,ensuringtobe equal orbetterthanbefore Swap
 PreparesFinal Acceptance report
 HandlesAcceptance Reportpresentationtothe customer.
 Attendtocustomercomplaintandpropose solutionsorrecommendation
June 23, 2008 to March 31, 2009
Aircom International
NSN - Smart Communications3G/HSPA(850/2100) OptimizationProject
RF Engineer/DT Engineer
 Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level,
qualityandthroughput
 Assistandcoordinate toseniorRF engineersinRFtroubleshootingintermsof hardware
problemsbasicKPIproblems
 Coordinate andassisttoseniorengineersinRF troubleshootingforproblematic.
Troubleshootingincludesfrequencychanges,adjacencymodifications,powermodifications,
and scramblingcodesverifications
 Involvedinrecommendingneighboradditionanddeletion
 Preparesxml’sforparameter/neighborsmodifications
 Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections
indatabase
 Drivetestmeasurementsandrelateddataanalysisandpostprocessing
 Preparesdrivetestreports
 InvolvedinpreparingSSV andPATreport
 PreparesDT test procedures
April 8, 2008 – June 20, 2008
SK Telesys
Huawei -SunCellular2G Expansion
RF Planning Engineer/DT Engineer
 Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking
 Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand
sectorization
 Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring
of existingandnewsites
 Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and
qualityforexistingandnewsitesandtoenhancedcoverage
 Involvedinrecommendingneighboradditionanddeletion
 Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections
indatabase
 Preparesdrivetestreports andTSSR
 InvolvedinpreparingSSV andPATreport
 Coordinates withcustomerfortechnical requirements
 Checksand approvesTechnical Site Surveyreports
September17,2007 – April 4,2008
UCE International
Huawei - Sun Cellular2G Expansion
RF / Transmission Planning Engineer/DT Engineer
 Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking
 Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand
sectorization
 Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring
of existingandnewsites
 Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and
qualityforexistingandnewsitesandtoenhancedcoverage
 Involvedinrecommendingneighboradditionanddeletion
 Identifies andreportsco-channelandadjacentchannel interferencesforchannel corrections
indatabase
 InvolvedinLine-Of-Sight(LOS) surveys,TransmissionLinkBudget/PathProfileCalculation
 InvolvedinpreparingSSV andPATreport
 Preparesdrivetestreports andTSSR
 Coordinateswithcustomerfortechnical requirements
 Checksand approvesTechnical Site Surveyreports
October27, 2006 – September14, 2007
FreeCommInc./ChinaCom
Huawei - Sun Cellular2G Expansion and Globe 2G Expansion
RF Planning Engineer/DT Engineer
 Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking
 Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand
sectorization
 Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring
of existingandnewsites
 Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and
qualityforexistingandnewsitesandtoenhancedcoverage
 Involvedinrecommendingneighboradditionanddeletion
 Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections
indatabase
 PreparesdrivetestreportsandTSSR
 InvolvedinpreparingSSV andPATreport
 Coordinateswithcustomerfortechnical requirements
 Checksand approvesTechnical Site Surveyreports
July2006 – September2006
UCE International
NSN– Smart 3G Roll-out
RF Planning Engineer /DT Engineer
 Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking
 Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand
sectorization
 Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring
of existingandnewsites
 Involvedindrive testactivitiesto checkbasicsite performance intermsof signal level and
qualityforexistingandnewsitesandtoenhancedcoverage
 Involvedinrecommendingneighboradditionanddeletion
 Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections
indatabase
 PreparesdrivetestreportsandTSSR
 InvolvedinpreparingSSV andPATreport
 Coordinateswithcustomerfortechnical requirements
 Checksand approvesTechnical Site Surveyreports
May 2005 – May 2006
CTEL Phil.Inc
Globe 2G Expansion
RF Planning Engineer/Site Survey Engineer
 Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking
 Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand
sectorization
 Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring
of existingandnewsites
 Involvedinrecommendingneighboradditionanddeletion
 PreparesTSSR
 InvolvedinpreparingSSV andPATreport
 Coordinateswithcustomerfortechnical requirements
 Checksand approvesTechnical Site Surveyreports
Personal Information
Age : 36 Nationality : Filipino
Civil Status : Married Sex : Male
Height : 5′10″ Weight : 178 lbs
Date of Birth : May 3, 1979 Birthplace : Meycauayan,Bulacan,Philippines
Name ofFather : MelchorMariano Name ofMother : SabrinaVilladozMariano
Educational Background
 BACHELOR OF SCIENCE IN ELECTRONICS AND COMMUNICATIONS ENGINEERING
University of the East, Philippines
October 2002
 SECONDARY EDUCATION
Colegio de San Pascual Baylon,Philippines
March 1996
 PRIMARY EDUCATION
Ubihan Elementary School, Philippines
March 1992
Personal References
Name:Noel Tolentino
Designation:NPOManager (NSNPhilippines)
Contact Number:+639209456547
Email Address:noel.tolentino@nsn.com
Name:Erwin Villadoz
Jobtitle:SeniorRF Engineer/ CEO of EZCOM TelecommunicationsServicesandSolutions
Phone Number: +639285520963
Email Address:erwinvilladoz.rf@gmail.com,erwinvilladoz@yahoo.com>
I herebycertifythatthe above informationistrue andcorrect.
PhilipVilladozMariano

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PhilipVilladoz Mariano RF Engineering Experience Summary

  • 1. PhilipVilladoz Mariano Cluster 20 Unit 8i Cambridge Village, Brgy. San Andres, Floodway, Cainta, Rizal, Philippines Philippine Mobile: +63 9189641908 pvmariano@yahoo.com; pvmariano83@gmail.com Personal Background  More than 10 yearsof experience inTelecomindustrywith knowledge inRFEngineeringand Optimization  Experience inLTERoll-Out  Most experience inRFPlanningandoptimizationfor UMTS and LTE  Knowledgeable inall typesof Drivetest equipmentsuchasNEMO, TEMS and Agilent  ProficientindifferentOptimizationtoolssuchasACTIX,NEMOAnalyzerand RANOPT  ExperiencedinRAN parameterplanningand tuningof RAS06, RU10, RU20, RU30 and RU40 Nokiaequipment  Knowledgeable inNokiaNetactandPlaneditTools  Knowledgeable inHSDPA featuresactivationandHSDPA KPITuning  More than 2 years of experience in SingleSite SurveyandPlanning  Knowledgeable inutilizingdifferentdrivetestequipmentsuchasNEMO and TEMS  Knowledgeable inperformingGPRS/EDGE/HSDPA testusingdrivetesttools  Experienced in 3G and 2G RF TSSR, antenna sectoring and identifying coverage objectives  Experienced in Line-of-Sight (LOS) surveys, Transmission Link Budget/Path Profile Calculation  Responsible and assertive team player with consistent performance  Skillful at identifying action plans and imaginative in achieving results  Effectively manage/coordinate within drivetest team  Active and self-assured individual who happy working with people LTE Parameters,Features and Physical Tuning  Involve in Analyzing and investigating DT logs like for Low Throughput test checking its RF conditions like MCS value, MIMO usage, SINR value, CQI and Resource block usage, based on this analyzing and trying to suggest some Tilt changes or PCI changes to improve SINR and checking CQI threshold so that can be improved as well as Attach Procedure Success Rate, Attach Procedure Setup Time , ERAB establishment Setup Time , ERAB Abnormal Release Rate..  Involve in LTE KPI Monitoring Accessibility KPI’s like RRC, ERAB Setup,S1,Radio Bearer, RRC paging Discard success rate, Usage KPI’s Cell availability, Resource block usage, PDCP layer throughput, Incoming/Outgoing Signaling Throughput on X2, Active UE’s per NodeB, Retainability KPI’s like RRC,ERAB drop rate, IP Incomingtraffic error rate, Mobility KPI’s Intra/Inter EnodeB HO success rate, Ho preparation HO success rate Inter NodeB X2 based, Quality and Power KPI’s Average Latency, Average CQI, Average RSSI for PUCCH and Average SINR for PUCCH.  Involve in Checking and Improvement of MIMO KPI’s by first analyzing the MIMO Settings (TxDiv, Static Open Loop MIMO, Dynamic Open Loop MIMO and Closed Loop MIMO) and by investigating the configuration of MCM and by improving with MIMO support parameters dlMimoMode,
  • 2. mimoClCqiThD, mimoClCqiThU, mimoClRiThD, mimoClRiThU, mimoOlCqiThD, mimoOlCqiThU, mimoOlRiThD and mimoOlRiThU.  Involve in improvement of Accessibility KPI’s Paging setup success rate by first analyzing Paging discards requests and transmitted RRC paging messages and by optimizing parameter like paging cycle and number of paging occasions.  Involve in improvement of Accessibility KPI’s like RACH setup success rate by first analyzing RACH setup attempts, EnodeB receive preambles and RACH setup completions and by optimizing parameter PRACHconfindex, PRACHCS, PRACHpwr and ramp,ulpclniprepwr and cyclic shift.  Involve in improvement of Accessibility KPI’s like RRC setup success rate by first analyzing the cause which might be due to RRC protocol error, SRB setup failures,rejections due to RAC and by optimizing parameter of Admission control like Max Number of RRC connections, Max num of Active users, Max num of users per TTI  Involvein improvement of Accessibility KPI’s like ERAB setup success rate by first analyzing the Radio Bearer setup failures which is due to RRC connection Reconfiguration failure and S1 Bearer setup failures which has two parts Initial context Setup request which is no response from MME and Initial context Setup response which might be due to no response from MME. Involve as well Involve in improvement of Retainibility KPI’s like ERAB Drop rate by first analyzing the cause which might be EnodeB or MME initialted failures and are due to radio link failures or transport failures, and can be improved by optimizing parameter like Inactivity Timer etc.  Involve in improvement of Bearer management by setting Quality of service parameters like QCI and its mapping with GBR and Non GBR resource types, ARP allocation and retention priority, ANP-AMBR and UE -AMBR which is APN and UE aggregate max bit rate, Guaranteed Bit Rate and Max Bit rate.  Involve in improvement of Cell Edge Behavior. Inter cell Interference and power consumption by setting UL power control parameters UlpcUqualSch,UlpcUqualCch,UlpclowqualSch,UlpclowqualCch, UlpcUlevlSch, UlpcUlevCch, UlpclowlevlSch, UlpclowlevCch, and by setting different schemes like conventional or fractional schemes which increases /decreases UE power based on path loss or by DL power control parameters like Pmax and dlCellPwrRed.  Involve in improvement of Mobility KPI’s like Intra NodeB HO by first analyzing X2 interface setup between EnodeB by checking the configuration and checking IP routes for X2 Sites if properly assigned based on plan. Troubleshooting X2 by requesting Ping test from NodeB to MME and also checking control plane IP address for X2 and verifying it, Analyzing HO stats by checking cause HO preparation not started as condition event A3 and A5 not met or Admission control and resource allocation on Target Cell, Ho failures due to timer expires. Also investigating the transport load measurements to check Incoming/Outgoing signaling and User plane data Volume to check overall impact of Data volume on X2.  Involve in discussion of setting layering Strategy for Idle mode parameters like Sintrasearch, Snonintrasearch, Qrxlevmin, Qrxlevminoffset, threshSrvLow, UtraFrqThrL and its relection to 3G by setting qRxLevMinUtra, qQualMinUtra, pMaxUtra.  Involve in discussion of setting layering Strategy for connected mode parameters like threshold1, Threshod2a, hysThreshold2a, Threshod2WCDMA, hysThreshold2Wcdma, b2Threshold1Utra, hysB2ThresholdUtra, b2threshold2UtraRscp, Threshold3a, Threshold3, a3Offset and a3TimeToTrigger, etc.  Involvein implementing CS Fall Back feature by settings parameters of CSFB likeAct CSFB, csFallBPrio, redirFreqEutra, redirGeranBandIndicator, redirRat and redirectPrio etc.  Involvein improvement of Throughput by improvingSINR which is usual ly doneby tilitingSites and by changing PCI, Rach Root Sequence and deleting LNREL to refresh LNBTS relations  Involve in activating UE-based ANR for intra-Frequency LTE(actUeBasedAnrIntraFreqLte)  Involve in proposing physical tuning like tilting and repanning as well as proposing new sites for the areas with poor coverage/coverage hole
  • 3. 3G Parameters, Featuresand Physical Tuning  Involve in 3G 2100Mhz Band For RF Sharing and 850Mhz Band(Philippines)  Involve 3G 1900Mhz Band and 850Mhz Band(Colombia)  Involve in checking of scheduler and Tcell before and after RF sharing  Involve in checking and modification of commissioning values and TCELL values based on vendors Node B Configuration Policies  Handles Clusters with Team Leader for coverage / quality improvement  Checking the HSDPA and HSUPA Processing set values  Checking throughput steps before and after RF sharing  Checking of CE capacity that will affect the KPI performance  Involved in Cluster Optimization in terms of L1 Optimisation and HGA antenna replacement  Check/Analyze Drivetest result before and after Swap and Cluster optimization reports  Involved in recommending neighbor addition and deletion for alignment  Prepares xml’s for parameter/neighbors modifications  Support OSS team in major KPI extraction  Monitor daily KPI’s, ensuring to be equal or better than before Swap  VAM Power Settings alignment in terms of parameters (such as PtxPrimaryCPICH, PtxCellMax, PtxMaxHSDPA, PtxTarget, PtxHighHSDPAPwr, PtxTargetPSMax, PtxTargetPSMin, PtxDLabsMax, CPICHtoRefRABoffset)  3G HSPA / Dual Cell alignment in terms of parameters ( such as MaxNbrOfHSSCCHCodes, HSDPA64UsersEnabled, PtxPrimaryCPICH, HSDPA64QAMallowed, HSPDSCHCodeSet, Tcell, CPICHtoRefRABoffset, HSDPAenabled, DirectedRRCEnabled, HSPDSCHMarginSF128, CellWeightForHSDPALayering, DCellHSDPAFmcsId, DirectedRRCForHSDPALayerEnabled, HSDPALayeringCommonChEnabled, HSPAFmcsIdentifier, DCellHSDPAEnabled, HSUPAEnabled, MaxTotalUplinkSymbolRate)  RF troubleshootingfor problematic includes frequency changes, adjacency modifications,power modifications,and scramblingcodes verifications  Identify and prepares daily worstperforming cells,ProvideCapacity upgraderecommendation for congested sites,Network Level Parameter Discrepancy auditand modification Employment History July22, 2015 – November 30, 2015 Aircom International Nokia - Smart Communications 3G/LTE Project RF Engineer/Optimization  Working withClient'sTeamLeaderin3G andLTE Roll-Outof NokiaforSmart  AttendingonClient'squeriesandrequirements
  • 4.  Checking/exploringparametersdiscrepanciesinLTE  Checking/exploring3Gparametersdiscrepanciesandcommissioninglicensesandcapacity NodeBsConfigurationandClient's Policies  InvolvedinKPImonitoring afterLTEImplementation  Involvedin3G KPImonitoring  Check/Analyze DrivetestresultsforSSOandClusterReports  Involvedinrecommendingneighbors aswell asneighboraudit(LTEand3G)  Preparesxml’sforparameters/neighborsmodifications  Attendtocustomercomplaintandpropose solutionsorrecommendation Affiliate Responsibilities  Involve in existing and new 3G / LTE FDD Sites Planning and Optimization  Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.  Prepare SCF file with default initial parameter settings.  Involve in defining Adjacencies (LNADJ/LNADJL)  Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned and involve as well in checking application addresses if properly assigned  Involve in L1 Optimization for Single site and Cluster DT and KPI's improvement such as repanning, tilting etc.  Involve in analyzing DT results for Single site/Clusters before and after physical tuning  Prepare SCF file with default initial parameter settings.  Checking / setting parameters for Reselection from 3G to LTE.  Checking / setting parameters for CS Fall back.  Checking / setting parameters for LTE to 3G Handovers.  Checking default parameters for DRX.  Enabled CS Fallback to UMTS  Parameter checking / alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..  Involve in checking / defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE <-> LTE  Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G  Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<- >3G  Checking and modification of 3G sites commissioning values and TCELL values based on Node B Configuration Policy  3G Parameters/Neighbors audit and XMLs creation for necessary parameters modification and ADJS/ADJI definition March 3, 2014 – July10, 2015 OSC Telecomsand Security Solutions, Bogota - Colombia NSN - CLARO for 3G/LTE Project( Cali City,Colombia ) RF Engineer/Optimization  Working withClient'sTeamLeaderinLTE Roll-Outof NSN forClaro  AttendingonClient'squeriesandrequirements
  • 5.  Checking/exploringparametersdiscrepancies inLTE  Checking/exploring3Gparametersdiscrepanciesandcommissioninglicensesandcapacity basedon RU40 NodeBsConfigurationandClient's(Claro) Policies  InvolvedinKPImonitoring afterLTEImplementation  Involvedin3G KPImonitoring  Check/Analyze Drivetest resultsforSSOandClusterReports  Involvedinrecommendingneighbors aswell asneighboraudit(LTEand3G)  Preparesxml’sforparameters/neighborsmodifications  Attendtocustomercomplaintandpropose solutionsorrecommendation Affiliate Responsibilities  Involve in 269 Existing and New 2600Mhz Band FDD for LTE Sites Planning and Optimization  Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.  Prepare SCF file with default initial parameter settings.  Involve in defining Adjacencies (LNADJ/LNADJL)  Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned and involve as well in checking application addresses if properly assigned  Involve in L1 Optimization for Single site and Cluster DT and KPI's i mprovement such as repanning, tilting etc.  Involve in analyzing DT results for Single site/Clusters before and after physical tuning  Prepare SCF file with default initial parameter settings.  Checking / setting parameters for Reselection from 3G to LTE.  Checking / setting parameters for CS Fall back.  Checking / setting parameters for LTE to 3G Handovers.  Checking default parameters for DRX.  Enabled CS Fallback to UMTS  Parameter checking / alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..  Involve in checking / defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE <-> LTE  Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G  Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<- >3G  Checking and modification of 3G sites commissioning values and TCELL values based on Claro's RU40 Node B Configuration Policy  3G Parameters/Neighbors audit and XMLs creation for necessary parameters modification and ADJS/ADJI definition January23, 2014 - February23, 2014 IGTL Network ServicesPhilippinesInc. NSN - San Miguel CorporationLTE Project RF Engineer/Optimization  HandlesClusters withTeamLeaderinLTE Roll-Outof NSN forSan Miguel Corporation  InvolvedinKPImonitoring afterLTEImplementation  Check/Analyze DrivetestresultsforSSOandClusterReports
  • 6.  Involvedinrecommendingneighbors aswell asneighboraudit  Preparesxml’sforparameter/neighborsmodifications  PreparesFinal Acceptance reportsforSSOandClusters  HandlesAcceptance Reportpresentationtothe customer.  Attendtocustomercomplaintandpropose solutionsorrecommendation Affiliate Responsibilities  Involve in initial 87 Roll-out 700Mhz Band FDD for LTE Sites Planning and Optimization  Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.  Prepare SCF file with default initial parameter settings.  Involve in defining Adjacencies (LNADJ/LNADJL)  Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned and involve as well in checking application addresses if properly assigned  Involve in L1 Optimization for Single site and Cluster DT and KPI's improvement such as repanning, tilting etc.  Involve in analyzing DT results for Single site/Clusters before and after physical tuning November1,2012 - December31,2013 Aircom International NSN - Smart Communications 3G RF Sharing/LTE Project RF Engineer/Optimization  Handlesareawith TeamLeaderin LTE Roll-Outof NSN forSmartCommunications  InvolvedinKPImonitoringafterRFSharinginpreparationforLTE  Check/Analyze Drivetestresultbefore andafterRFSharingto checkthat there are no degradation  Involvedinrecommendingneighboradditionanddeletion(ADJL),aswell asneighboraudit  Preparesxml’sforparameter/neighborsmodifications  SupportOSSteam inmajor KPIextraction  MonitordailyKPI’s,ensuringtobe equal orbetterthanafter RF Sharing/LTEImplementation  PreparesFinal Acceptance report  HandlesAcceptance Reportpresentationtothe customer.  Attendtocustomercomplaintandpropose solutionsorrecommendation  AchievedKPIsmore than99% Affiliate Responsibilities  Involve in 500 sites 3G 2100Mhz Band For RF Sharing  Involve in checking of scheduler and Tcell before and after RF sharing
  • 7.  Checking the HSDPA and HSUPA Processing set values  Checking throughput steps before and after RF sharing  Checking of CE capacity that will affect the KPI performance  Involved in 500 sites 2100Mhz Band FDD Phase 1 and 2 Roll Out for LTE Sites Planning/Optimization  Plan New PCI and PCI groups, Root Sequence Index for LTE Sites.  Plan TAC borders base d on LTE criteria for selection.  Involve in planning X2 for LTE Sites.  Prepare SCF file with default initial parameter settings.  Set default parameters for Reselection from 3G to LTE.  Set default parameters for CS Fall back.  Set default parameters for LTE to 3G Handovers.  Set default parameters for DRX.  Propose EARFCN for LTE Band.  Involve in defining neighbor relations via PCI mapping  Enabled CS Fallback to UMTS  Parameter alignment LNBTS, LNCEL, LNCEL_HC, LNCEL_PS, LNCEL_SIB etc..  Involve in defining Adjacencies (LNADJ/LNADJL) to have continuous data call between LTE <-> LTE (NSN/HW equipment)  Involve in defining Adjacencies (LNADJW) to have continuous data call from LTE-> 3G (F2/10587)  Involve in defining Adjacencies (REDRT/UFFIM) to have idle mode RESELECTION/REDIRECTION LTE<- >3G (F1/10562 & C1/4362) ; REDRT for C1/4362 is created only for co-site.  Involve in checking User Plane Guaranteed Bit Rate admission control based on the BW provisioned and involve as well in checking application addresses if properly assigned July1, 2009 - October31, 2012 Aircom International NSN - Smart Communications2G/3G/HSPA/HSPA+/Dual Cell and ModernizationProject RF Engineer/Optimization  HandlesareawithTeamLeader in3G SWAPfrom Ericssonto NSN  InvolvedinClusterOptimizationintermsof L1 Optimisation andHGA antennareplacement  Check/Analyze Drivetestresultbefore andafterSwapandClusteroptimizationreports  Involvedinrecommendingneighboradditionanddeletion  Preparesxml’sforparameter/neighborsmodifications  SupportOSSteam inmajor KPIextraction  MonitordailyKPI’s,ensuringtobe equal orbetterthanbefore Swap  PreparesFinal Acceptance report  HandlesAcceptance Reportpresentationtothe customer.  Attendtocustomercomplaintandpropose solutionsorrecommendation
  • 8. June 23, 2008 to March 31, 2009 Aircom International NSN - Smart Communications3G/HSPA(850/2100) OptimizationProject RF Engineer/DT Engineer  Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level, qualityandthroughput  Assistandcoordinate toseniorRF engineersinRFtroubleshootingintermsof hardware problemsbasicKPIproblems  Coordinate andassisttoseniorengineersinRF troubleshootingforproblematic. Troubleshootingincludesfrequencychanges,adjacencymodifications,powermodifications, and scramblingcodesverifications  Involvedinrecommendingneighboradditionanddeletion  Preparesxml’sforparameter/neighborsmodifications  Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections indatabase  Drivetestmeasurementsandrelateddataanalysisandpostprocessing  Preparesdrivetestreports  InvolvedinpreparingSSV andPATreport  PreparesDT test procedures April 8, 2008 – June 20, 2008 SK Telesys Huawei -SunCellular2G Expansion RF Planning Engineer/DT Engineer  Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking  Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand sectorization  Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring of existingandnewsites  Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and qualityforexistingandnewsitesandtoenhancedcoverage  Involvedinrecommendingneighboradditionanddeletion  Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections indatabase  Preparesdrivetestreports andTSSR  InvolvedinpreparingSSV andPATreport  Coordinates withcustomerfortechnical requirements  Checksand approvesTechnical Site Surveyreports
  • 9. September17,2007 – April 4,2008 UCE International Huawei - Sun Cellular2G Expansion RF / Transmission Planning Engineer/DT Engineer  Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking  Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand sectorization  Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring of existingandnewsites  Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and qualityforexistingandnewsitesandtoenhancedcoverage  Involvedinrecommendingneighboradditionanddeletion  Identifies andreportsco-channelandadjacentchannel interferencesforchannel corrections indatabase  InvolvedinLine-Of-Sight(LOS) surveys,TransmissionLinkBudget/PathProfileCalculation  InvolvedinpreparingSSV andPATreport  Preparesdrivetestreports andTSSR  Coordinateswithcustomerfortechnical requirements  Checksand approvesTechnical Site Surveyreports October27, 2006 – September14, 2007 FreeCommInc./ChinaCom Huawei - Sun Cellular2G Expansion and Globe 2G Expansion RF Planning Engineer/DT Engineer  Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking  Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand sectorization  Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring of existingandnewsites  Involvedindrive testactivitiestocheckbasicsite performance intermsof signal level and qualityforexistingandnewsitesandtoenhancedcoverage  Involvedinrecommendingneighboradditionanddeletion  Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections indatabase  PreparesdrivetestreportsandTSSR  InvolvedinpreparingSSV andPATreport  Coordinateswithcustomerfortechnical requirements  Checksand approvesTechnical Site Surveyreports
  • 10. July2006 – September2006 UCE International NSN– Smart 3G Roll-out RF Planning Engineer /DT Engineer  Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking  Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand sectorization  Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring of existingandnewsites  Involvedindrive testactivitiesto checkbasicsite performance intermsof signal level and qualityforexistingandnewsitesandtoenhancedcoverage  Involvedinrecommendingneighboradditionanddeletion  Identifiesandreportsco-channelandadjacentchannel interferencesforchannel corrections indatabase  PreparesdrivetestreportsandTSSR  InvolvedinpreparingSSV andPATreport  Coordinateswithcustomerfortechnical requirements  Checksand approvesTechnical Site Surveyreports May 2005 – May 2006 CTEL Phil.Inc Globe 2G Expansion RF Planning Engineer/Site Survey Engineer  Involvedinsite surveyactivitieslike sitehunting,site validationandsite ranking  Participatedinsite auditactivitiestochecksite dataintermsof height,bearingand sectorization  Invlovedinconducting radiofrequencyinvestigationforexternal interference monitoring of existingandnewsites  Involvedinrecommendingneighboradditionanddeletion  PreparesTSSR  InvolvedinpreparingSSV andPATreport  Coordinateswithcustomerfortechnical requirements  Checksand approvesTechnical Site Surveyreports
  • 11. Personal Information Age : 36 Nationality : Filipino Civil Status : Married Sex : Male Height : 5′10″ Weight : 178 lbs Date of Birth : May 3, 1979 Birthplace : Meycauayan,Bulacan,Philippines Name ofFather : MelchorMariano Name ofMother : SabrinaVilladozMariano Educational Background  BACHELOR OF SCIENCE IN ELECTRONICS AND COMMUNICATIONS ENGINEERING University of the East, Philippines October 2002  SECONDARY EDUCATION Colegio de San Pascual Baylon,Philippines March 1996  PRIMARY EDUCATION Ubihan Elementary School, Philippines March 1992 Personal References Name:Noel Tolentino Designation:NPOManager (NSNPhilippines) Contact Number:+639209456547 Email Address:noel.tolentino@nsn.com Name:Erwin Villadoz Jobtitle:SeniorRF Engineer/ CEO of EZCOM TelecommunicationsServicesandSolutions Phone Number: +639285520963 Email Address:erwinvilladoz.rf@gmail.com,erwinvilladoz@yahoo.com> I herebycertifythatthe above informationistrue andcorrect. PhilipVilladozMariano