TECHNICAL SKILLS:

Operating Systems: Windows 7/98/2000/XP/NT, UNIX, Linux

Engineering Tools: TEMS, Actix, Agilent, COPS, iBwave, Ericsson OSS, Business Objects (BO), Confidential Performance Monitoring Tools (RMAP, Quantum and Net Track).

Programming Languages: C, C++, Java, SQL, PL/SQL, HTML

Database software: MS SQL Server 2000/2005/2008, MS Access

Project Management Tools: Microsoft Project

WORK EXPERIENCE:

Confidential, Herndon, VA

Sr. LTE/VoLTE Engineer

Responsibilities:

• Responsible for improving KPIs like Accessibility, Retanability, Mobility (RRC Setup success rate, ERAB Setup Success rate, IRAT Handover success rate, DL & UL Throughput measurement & Drop calls). % Time on LTE and voice fallback to 3G (CSFB)
• Review and approve the RAN features and parameter trials to be presented and discussed with the Customer´s technical team for approval (Ericsson L16A/L15B and Nokia RL70/FL16/FL16A)
• Mobility analysis for HO prep and HO execution failures and rectification to improve the same
• Parameter Audit and Consistency Check for eNodeB’s
• Identify PCI confusion & confliction cells and rectify with help of planning team
• Traffic Balancing between Carriers to improve Network Quality using Idle Mode and Connected Mode Parameters
• RF shaping for Over - shooters based on Drive test and TA stats analysis.
• Good understanding of Ericsson LTE Features like Mobility control at poor coverage, PDCCH link adaptation, Multi-RRC Establishment, UL/DL Coordinated Multipoint, MIMO strategies, CDRX tuning, Idle mode Strategy, Automatic Handover Optimization, Carrier Aggregation etc.
• High traffic Event management and parametric settings
• Identification of VoLTE issues like lack of dynamic QCI-1 activation, VoLTE required features not activated, SRVCC issues etc.

Confidential, Herndon, VA

RF Optimization Engineer

Responsibilities:

• Perform UMTS coverage and capacity planning.
• Plan the Node Bs in a 3G RF planning tool with optimized antenna azimuths, antenna types, antenna heights, tilts etc.
• Perform CPICH and channel power allocation.
• Assign Node B RF parameters.
• Define optimal neighbor relationships.
• Scrambling code planning.
• Formulate capacity upgrade and/or plan new site/s to address capacity issues region wide.
• Study traffic and resource utilization figures and make suggestions.
• Dimensioning of RAN Network (CEs, Channel Cards, Node Bs, RNCs) for coverage and capacity and quality requirements.
• Analysis of site performance after integration using drive test measurements.
• Performed link budget analysis, design criteria and traffic analysis
• Developed project objectives by reviewing project proposals and plans; conferring with management
• Determined project technology specifications by studying product design and customer requirements.
• Ensured data integrity of various morphology/topography databases and drive test data for model calibration
• Ensured adherence to project plan by reviewing design, specifications, and plan and schedule changes; recommended actions
• Undertook network performance improvement (KPIs) and optimization tasks
• Responsible for Network Audit for discrepancies and parameter changes for the improvement of KPI
• Weekly meeting with high level management of Confidential to understand the challenges and meet the project goals in timely manner.
• Provided best practices to follow for RF engineering projects under guidance and approval of Project Manager
• Under control of PM, provided reports on technical issues to upper management.
• Worked with Wireless/RF/RAN 2G/3G/4G Voice and Data Network Design, Modeling and Engineering.
• Resolved customer service issues and assisted in implementing solutions.
• Responsible for analyzing hourly and daily service measurement data to optimize the network and reduce lost calls and ineffective attempts
• Achieved & maintained the Radio Network Performance as per the contracted KPIs (Accessibility, Retain ability, Mobility & Service Integrity)

Confidential

Pre-launch Optimization Engineer

Responsibilities:

• Recommendations for RF parameter changes, feature activations on drive test data to improve the system performance.
• Verified IHFO and IRAT handover in cluster boundary and recommended handover parameter changes to improve performance.
• Analyzed soft handover, IFHO & IRAT neighbors and made necessary changes.
• Optimized bad Ec/Io area, Pilot Pollution area and made changes in Tilt and azimuth to improve KPI.
• Created drive routes and IFHO routes for cluster.
• Achieve & maintain the Radio Network Performance as per the contracted KPIs (Accessibility, Retain ability, Mobility & Service Integrity) for new sites.
• Responsible for testing the radio performance for the newly integrated sites.
• Discuss the Scrambling Code retunes requests with team leader for new nodes
• Responsible for the drive test analysis and taking the necessary action to improve the performance of nodes
• Evaluate and adapt new methods and technologies regarding Radio Network Optimization, Features, and Trials & Tuning.
• Responsible for initial tuning of New Node Bs & 2nd carriers
• Responsible for adding and cleaning up neighbors using OSS
• Responsible for finding missing neighbors using GPEH & TEMS Visualization
• Responsible for monitoring the UTRAN performance using Business Object
• Responsible for configuration & performance check of new nodes & 2nd carrier and hand over the site to customer with initial tuning report
• Preparation of drive routes for single site/ cluster and co-ordinate drive test

Confidential

RAN Performance Management & Operations Engineer

Responsibilities:

• Monitor wireless network RAN performance through CQI reporting and KPI measurements
• On a daily basis, check sub-Market level Voice KPI’s (CQI, AxR, CS RET, CS ACC) and Data KPI’s (PS ACC & PS RET) and identify the specific KPI of the site that is causing the degradation (e.g. QD-R, PS SRB Drop %, CS RRC Conn % etc.)
• Determine what metrics and KPIs are involved in addition to main metric or KPI that caused the degradation to exist. Primary KPIs include: Drops --> CS/PS, RRC Succ % --> CS/PS, SRB Succ % --> CS/PS, RAB Succ % --> CS/PS, Traffic Volume --> CS (# of users, RAB attempts, Erlangs), PS (# of users, RAB attempts, Data Payload). Secondary KPIs include: Adm Rej %, HSDPA Rej %, SHO %, AS %, RTWP, RL Fail due to --> Power, Code, NodeB resource, Lack of IuB Bandwidth, IuB Congestion, IFHO %, IRAT %, ISDR %, Non-HS Power %, Propagation Delay.
• Evaluate current and past alarms on the RNC and NodeB. Determine if current or past alarms relate to the current degradation defect
• Evaluate T1 errors and check the site to see if any of the spans are showing errors. Identify the DS3 that is used by a defective span. Spot check T1s from other sites on the same DS3 for errors and correlate
• Check Real time RSSI to determine Real time RSSI values and check historic RSSI trend. If interference is suspected, engage MNRC RAN via ticket for restarting the site.
• Check RAX and Tx Utilization
• Evaluate CTS and Customer Complaint Tickets (including SIR). Determine if there are any active tickets for the current defect.
• Evaluate neighboring sectors and second tier neighbors for related impacts. Check metrics for neighboring sites; determine if there are similar degradations as the key site (e.g. increased RSSI, traffic spike, IuB issue etc.)