Shafi

 

rfusajobs@gmail.com

----------------------------------------------------------------------------------------------------------------------             

Objective

To obtain RF Engineer position that utilizes my academic, professional level experience and high skills with an opportunity for growth.

Summary

·               8+ years of hands-on experience in RF Telecommunication Tools and Equipment’s.

·               Design & Optimization on LTE, UMTS, GSM networks coverage

·               Very good understanding of 4G/3G/2G technologies.

·               Good knowledge of LTE Network Architecture, LTE Air Interface, LTE Handover Procedures, LTE RF Parameters

·               Good understanding of LTE L3 messages

·               Experience in Network design using Atoll.

·               Good understanding of RF hardware such as RBS types, Antennas, Diplexer, Duplexer, TMA’s, Feeder cables, RRH, RRU, RXAIT, LLC, RET controllers etc. present on cell sites and their associated cabling.

·               Experience creating plumbing diagrams for both NSB and Carrier-Adds

·               Excellent organizational, interpersonal and communication skills with the flexibility and experience required to remain highly focused and self-possessed in fast-paced, demanding environments.

·               Capable of working under pressure in a fast-paced, multi-cultural environment and setting clear goal for each project, Hardworking, self-motivated, highly responsible and dedicated to work, can work with team or independently, well at working more than one assignment, interested in learning new things and a very good team player.

Professional Experience

RF Design & Optimization Engineer –Ericsson (Atlas Wireless Contractor)

10/2014 – Till date

·   Monitor Network KPIs by analyzing Daily Statistics & Reports like Accessibility, Retain ability, Drop Call Rate, Handover Success rate, uplink noise and troubleshoot for issues.

·   Recommend changes to improve KPI’s by suggesting physical optimization procedures including changes done to Antenna Azimuth, Antenna tilts & Antenna height reduction/increase

·   Experience in network optimization with the help of parameters and counters

·   Performs RF network design activities in customer projects independently, according to project plan and in project manager guidance. 

·   Worked on creating bulk NSB new sites build in AUTOFORMS & ATOLL both.

·   Experience creating plumbing diagrams for both NSB and Carrier-Adds

·   Update Auto-forms and to create and maintain data sheets with updated info.

·   Evaluating coverage problems and capacity planning using Atoll Radio network planning tool to Identifying locations for new cells taking baseline, performance, capacity, coverage, business needs, and population into consideration.

·   Performing radio engineering evaluations for system planning and site acquisition

·   Was involved in Data updates and editions in Atoll for Antenna information on Transmitters & Cells.

·   Fully proficient in set-up, calibration, utilization, and data processing of various design and optimization equipment and software

·   Knowledge for creating Boundaries site acquisition process through FAS submissions.

·   Verify RF related site engineering drawings for boundaries and pointing and creating new LAT/LONG for new Sites around uncovered areas for Network.

·   Perform design criteria, system dimensioning, link budget and traffic analysis, perform frequency and BCC planning

·   Worked on Atoll Propagation Modelling process for Clutters.

·   And was involved in Prediction calculations like calculations by Sites, Transmitter & Signals etc.

·   Understand equipment co-location requirements for multiple operators and perform inter-modulation analysis 

·   Dimensioning on LTE/CDMA/UMTS networks in accordance to the coverage, capacity and quality requirements from the customer

·   Model tuning and validation of propagation parameters

 

RF Design & Optimization Engineer - Ericsson (Mobicom Contractor)

02/2013 – 09/2014

·   Review of network statistics (Daily Performance Reports) to target areas for improvement by analyzing lost calls, handoff failures, frequency issues, origination failures

·   Monitored the stats using Business Objects.

·   Responsible for Designing and creating SCIP Evaluation packages for LTE sites

·   RF Justification packages for zoning purpose showing the Coverage Plots and justifying the reason of that new NSB site

·   Creating Exhaust reports for the Sites that fail the KPIs requirement or whose Search rings are exhausted

·   Creating Sites, Transmitter and Cell tables in ATOLL for NSB's and overlay sites. Clustering sites in MapInfo

·   Hands on experience in designing the sites on ATOLL considering the clutter, surrounding area, Capacity and coverage issues. Using proper Propagation models, Antennas, Height, Azimuths, and Tilts following the market standards to avoid interference with neighbor sites

·   Analysis of Walk test for In-Building Systems (IBS) and optimizing network.

·   Walk test and  preparing reports for in-building wireless/ Distributed Antenna System (DAS)

·   Troubleshoot high runner sites and provide possible cause and resolution.

·   Identifying & Fixing UL Noise issues caused by external Interference & attenuate to balance the noise

·   Identifying interference issues and troubleshooting the cause of interference and notifying to the concerned departments

·   Identified software and hardware issues and rectified or forwarded the issue to concerned department

·   Perform neighbor/parameter audits, KPI troubleshooting, site verification, tilt recommendation and overshoot/missing neighbor determination to improve cluster performance

·   Identifying poor coverage/too many server areas and provide necessary tilts to improve the coverage and intra ping pong issues

·   Coverage and footprint Optimization using OSS and DT tools

·   Post Launch support for Accessibility, Retain ability, X2 HO Issues, PCI/X2 confusions, UE context failures, ERAB abnormal releases, ERAB drops and ERRC fails

·   Verifying from Atoll Plots to check for Impact of Tilt changes

·   Working with System Performance to reduce Lost Calls, Ineffective Attempts, Failed connection attempts, Dropped Connections, RRC setup failures, RRC Drops, Context Setup Failures, and Context Drops in assigned area

·   Used Actix Spotlight and TEMS Discovery tool for post processing

·   Implementation of new features and tuning LTE radio network parameters 

 

RF Optimization Engineer - Ericsson (MetroTel Contractor)

05/2010 – 12/2012

·   Conducting Pre & post - launch activities to suffice project priorities

·   LTE Network Launch & Cluster Optimization

·   Performed Ad Hoc parameter changes based on field results

·   Identified the worst site and worst carrier degrading the network KPI’s and used the best practices to resolve the issue.

·   KPI Trend Analysis on RSRP, RSRQ, RTT, SINR etc.

·   Perform Parameter Audits and Definition inconsistency checks

·   Worst Cell Identification and Worst Cell Analysis

·   Provide physical and soft Network Change Recommendations, evaluate the impacts

·   Capacity Optimization and Radio Resource Utilization

·   Perform parametric optimization for effective load balance between LTE cells and towards IRAT in accordance with operator strategy.

·   Thorough check of RRC attempts, RRC Failures, CS/PS RAB attempts, CS/PS RAB failures, Data only (DO), (CSFB) Drives analysis

·   Analysis of cluster drives and providing solutions for drop cases, LTE Integrity, LTE Retainability, Throughput issues.

·   Performing LTE Pre launch network optimization for Ericsson in Riyadh, including TEMS/Nemo drive analysis, neighbor relation, tilts and parameter optimization.

·   Analysis of Walk test for In-Building Systems (IBS) and optimizing network.

·   Carry out basic parameter checks such as RSRP, SINR, and Throughput during the Test.

·   Instruct DT Engineers and Co-ordinate with the DT teams as well to perform the test.

·   Performed LTE Parameters audits- LAC/TAC, integration audits.

·   Provide LTE training on Air interface and discussing day to day issues with the team.

·   Escalated the degradations in the network, emails and phone to the concerned department.

 

RF Engineer - Huawei (Integrated Wireless Solutions Contractor)

12/2007 – 02/2010

 

·   Started as a RF trainee Data Collector and continued to RF (optimization) Engineer till the end of the project.

·   Using Ericson TEMS & Huawei GENEX Probe tools.

·   Carrying out Coverage, Quality and Cell Re-selections, Handovers test using TEMS Investigation in idle and dedicated mode to ascertain the Design criteria.

·   Analyzing RF drive test data to evaluate network performance - track out the TCH blocking and other call related problems.

·   To analyze the drive test data and suggesting changes and solve the problems faced by Drive Test RF Engineers & making reports.

·   Optimizing RF Parameters such as Neighbor list, HSN, BCCH, BSIC, MAIO & Frequency retuning Frequency /HSN changes to reduce interference, addition of missing neighbors & BSIC changes in order to enhance main routes performance.

·   Continuous monitoring & Analyzing the issue of targeted KPI in 3G & 2G Network using Reporting Suite (Nokia), Tems Log Files/ Genex probe Few Monitored 3G KPI (CS, PS & HSPA) on daily basis and Traffic (Speech, PS).

·   Performed RF drive testing to carry out propagation and signal measurement using TEMS Investigation, GENEX PROBE 1.52.

·   Assisted and troubleshoot drive teams in market. Help those configuring cell phones, data sticks, scanners etc.

·   Analysis of Drive Test for Single Site Verification (SSV) using TEMS tools.

·   Recommendation of UMTS parameter changes, related to neighbor definition, cell reselection, 2G soft handover in order to improve coverage, interference, pilot pollution, overshooting and traffic balance etc.

·   Recommendation of physical changes (tilt, azimuth) in order to improve KPIS of the 2G Network according to targets committed with the customer.

·  Identify major call-related problems (dropped calls, call blocked, hardware problems etc.) and troubleshoot them onsite.

 

Education

Bachelors in Electronics & Communication Engineering

Jawaharlal Nehru Technological University, Hyderabad, India

2007

·   Major – Wireless communication

·   Minor – Embedded Electronics

 

Technical Skills

·   Electronics/RF: Digital signal processing and Digital Communication, Digital filtering and math algorithms.

·   Operating systems: Windows9x/NT, XP, Vista, Windows7, 8, 10

·   Languages: SQL, PL/SQL & Basic ‘C’ Language.

·   RF Tools: Actix, Atoll, Arieso, EAMS, Huawei Genex Probe, TEMS, Map Info, Nemo, Net Act, Business Objects, Spectrum Analyzer.

·   Package Microsoft Office Tools.

 

Projects & Courses

·                 ·               Introduction to Wireless Communication	·                 ·               Wireless Communication Systems	·                 ·               RF Optimization
·               Wireless Network and Architecture	·               Digital signal processing	·               UMTS
·               Switching theory & logic design	·               Wireless/ Mobile communications	·               LTE
·               WCDMA RAN	·               GSM	·

·               Designed and implemented a development board for microcontroller ATMEL 89C51 which controlled the laboratory appliances.

 

References

Available on request