·               Worked as a team lead to improve multi bands (LTE, CDMA, EVDO, DAS) project of assign zone in Chicago & NW Indiana market.

·               Worked for LTE Network Development and supported client locations on Bands 25, 26 and 41with different frequencies of 800 MHz, 1900MHz and 2.5 GHz.

·               To improve throughput and HO, inspected various events like A3, A5, DRX, PDSCH and various other RF parameters. 

·               Tracked all the project related activities like opening the ticket for Hardware installation, cabling, power, stack, IP Assignment, problems with nodes and with loading the configurations.

·               Performed bench marking analysis and reports for entire market, TWS drive reports, Root metric drive reports, Nielsen drive reports and giving recommendation for market level improvements.

·               Optimized 3G/LTE KPIs performance daily after sites upgrades or integration. Successfully detected and escalated over 175 heavy degradation cell sites to fulfill customer's criteria request.

·               Optimized DAS & COW sites and configured neighboring macro sites to handle traffic during special events.

·               Performed site surveys to evaluate location and identify requirements for system design, including RF data collection.

·               Performed Model indoor propagation and capacity to determine antenna placement and equipment needs using IB-Wave for IDAS.

·               Evaluate prospective Cell Site tower signal strengths and select the optimum choice as the signal source to be used to feed the BDA / DAS system as well the amount of users.

·               L-3 messaging analysis for intra-node and Macro/Small Cell HO/Reselection borders - Traffic & Idle Modes.

·               LTE/CDMA drop call analysis based on cluster drive data to troubleshoot Pilot pollution, drop calls, dropped connections, handoff failures and minimizes interference issues by improving SINR and coverage.

·               Extensive call performance analysis and optimization to determine call quality, dropped call resolution, analysis of handoffs, cell site failure, RF signal strength characteristics and changes in call traffic patterns and adjustment of network parameters as required.

·               Performed load balancing parameters thresholds for high traffic sites and balancing the traffic between 800, 1900 & 2500 MHz LTE bands. 

·               Tuning of network parameters and cluster verification was done and site preparation reports were prepared successfully.

·               Executed E-tilt changes post launch to overcome coverage holes and changed several sector level parameters to improve PS & CS accessibility, retainability, HO success rate, IRAT rate and time on LTE. 

·               Determine the actual network (geographical/signal strength) coverage using ATOL & Planet.

·               Perform parameter audits, data fill parameters, conduct pre-post analysis, and prepare performance reports

·               Proactively look for areas to improve LTE network performance and to meet network KPIs.

·               Implementation of new features, tuning LTE radio network parameters, and balance traffic for Multi-Layer (carrier) sites.

·               Performed parameter audits prior to launch and set the values according to gold standards.

·               Performed special events optimization and performance monitoring (Festivals, Concerts, Stadiums, etc.)

·               Worked noise issues on (800MHz) networks, including identifying and swapping out bad equipment, identifying and mitigating interference issues from external BDAs and self-generated issues from placement of RRHs on current platforms.

·               Supported to design team in all CDMA/LTE Design activities like Propagation analysis, running Monte Carlo simulations, calculating predictions, and KPI evaluation using planet tool.

·               Successfully submitted reports to client of assigned clusters showing pre & post KPI’s, number of sites, bands, channels used in a particular cluster boundary by using in-house macros, Microsoft excel & Microsoft Power point.

Device Test Engineer         Oct 2013 – March 2014

Tech Mahindra.

·               Performed as Device Test Engineer for Android based Motorola devices against approved reference devices by respected carriers on LTE/CDMA/UMTS/EVDO networks.

·               Tested VoLTE/IMS Network.

·               Performed IMS/ VoLTE E2E call flows.

·               Identified Inter-operability between IR-92 and IR-94 requirements to deliver LTE voice, video and SMS services over IMS.

·               Analyzed and reviewed the VoLTE/IMS System Requirements.

·               Hardware/Software testing per wireless standards (3GPP/3GPP2) and internal/external specifications.

·               Worked as Subject matter expert (SME) for all Lab testing (CDMA, LTE and VoLTE).

·               Call Performance testing experience using Mobile Diagnostic Monitors (e.g. Spirent UDM and Qualcomm QXDM) to verify device compliance and performance.

·               Compilation of various written and verbal reports on the testing results.

·               Experience in compliance testing on live networks and in a laboratory environment.

·               Post processed and analyzed log file and create reports as client’s requirement.

·               Provide training to new team members for quick learning. Performed validation tests from written and/or verbal instruction.

·               Tested Motorola (DUT’s) on AT&T, Verizon, T-Mobile, U.S. Cellular & Sprint live networks.

·               Performed device field testing as per AT&T’s 16411 excel sheet for Motorola Android devices.

·               Successfully performed full Regression Test, Sanity Test, Key Performance Indicators (KPI) Test, Throughput Test, and CSFB Test Cases in Lab Environment using Test Central Tools.

·               Proficiency in AT Commands for LTE/UMTS/CDMA/GSM protocol Stack.

·               Executed test cases and successfully reached weekly targets.

·               Interacted with client for more information on test cases and others.

·               Responsible for execution of tests to verify that behavior of Device under test (DUT), in live network environment (Stationary/Drive Test).

·               Verified Handset features like MO/MT speech calls, IRAT Handovers, Cell Selection/Re-selection, PC Browsing, PS/CS Calls, SMS, MMS, Supplementary Services and CSFB calls.

·               Performed MOS Voice quality and DATA (MHS/USB) test using Spirent Datum tool.

·               Collected and post processed failure logs, bugs reporting using UTP.

·               Identify issues & errors with DUT’s and report to Motorola product lead.

·               Executed new Android build through the software ODIN, QPST and/or QRCT.

·               Performed on normal feature and functional tests for each formal builds and verifying the solved bugs with      each engineering builds (includes RAT changing Test Cases).

·               Maintained data base of all builds, bug errors, test reports etc.

RF Engineer               Feb 2013 – Oct 2013

Glow Network.

·               Monitor and trend network statistics, troubleshoot site issues and resolve capacity issues.

·               Tested VoLTE/IMS Network.

·               Performed IMS/ VoLTE E2E call flows and responsible for architecture, Services and standards of various LTE IMS projects which includes interworking and routing between different protocols. 

·               Identified Inter-operability between IR-92 and IR-94 requirements to deliver LTE voice, video and SMS services over IMS.

·               Analysis of LTE/VoLTE and UMTS Networks and device traces in ALU projects using OXDM, JDSU, IRIS View, IxLoad and TEMS.

·               Well versed on IMS and VoLTE call flows (Both Voice & Video).

·               Identify and resolve data performance issues - e.g. outage, latency, throughput, failed connection attempts, and dropped connections.

·               Extensive call performance analysis and optimization to determine call quality, dropped call resolution, analysis of handoffs, cell site failure, RF signal strength characteristics, changes in call traffic patterns and adjustment of network parameters as required.

·               Examined call flow, call performance, and various handovers through Layer-3 messages using post processing tools such as Actix and Windcatcher.

·               Interacting with the end-client regularly and providing updates about deployment/optimization activities Performing Coverage Analysis, Identifying & Optimizing Coverage holes based on CPICH Ec/No & RSCP

·               Optimization of UMTS/LTE networks to troubleshoot and improve KPI’s. 

·               Monitoring the performance of network and looking after any RF & equipment related issues which might be responsible for the degradation.

·               Analyzed drive test data using Actix for voice and data calls including HSDPA and HSUPA and recommend necessary changes for launch readiness. Also, involved in LTE multi carrier Optimization.

·               Changed parameters on site post launch to improve site performance and user experience. 

·               Determine the actual network (geographical/signal strength) coverage using ATOL.

·               Provided network support to Market lead, including locking and unlocking sites (LTE and UMTS), implementing work orders, providing alarm reports, readings, pre and post-launch KPIs, pre-launch checks. 

·               Perform parameter audits, data fill parameters, conduct pre-post analysis, and prepare performance reports.

·               Proactively look for areas to improve LTE network performance and to meet network KPI’s.

·               Implementation of new features, tuning LTE radio network parameters, and balance traffic for Multi-Layer (carrier) sites.

·               Supported the RF Design team of Illinois/Wisconsin in data integrity activities.

·               Maintenance of integrity of parameters in Atoll, CSS and OSS for 2G, 3G and 4G.

·               Evaluation of new site candidates (atoll scorecard).

·               RF evaluation of new co-location projects in Siterra.

·               Correction of site configuration in E911 NMT for IL/WI.

·               Audit parameters OSS vs Atoll.

RF Engineer            Apr 2010 – Sep 2012

Nokia Siemens.

·               Worked with Nokia Siemens networks Covenant Mea LLC on QA Project as RF field engineer.

·               Detailed drive log analysis to troubleshoot CS/PS setup failure, CS/PS drops, cell selection/reselection problems, intra, inter missing neighbors, HSDPA/EUL throughput analysis, RRC Connection Reject, intra, inter HO success & failures.

·               Driving on Circular CW and CCW direction to perform the Intra-Handover Sector Test and Throughput (alpha to beta, beta to gamma and gamma to alpha).

·               Support Switch engineers in performing the call flow.

·               Performed Cluster Drive, post processed and analyzed of log files.

·               Made report and post processing and analyzing call drops, call setup failure and coverage holes by Actix.

·               Attended customers complain, Neighbored deletion and keep monitoring of HO performance.

·               Performed walk test for highways and malls, freeway drive monthly according to customer demand.

·               Identified poor coverage areas in the cluster and recommended up tilt, Azimuths and power changes recommendations in order to improve coverage and KPI’s.

·               Suggested recommendation for network related problems like drop calls, pilot pollution, blocked calls and packet data access failures.

Operation Manager Mar 2004 – Dec 2008

Wireless World