Experienced RF Engineering Professional with 6+ years of experience in optimization of radio networks having a sound understanding of wireless technologies like VoLTE, LTE-A, LTE, HSPA, UMTS, GSM and CDMA2000 as well as their interworking.
Working experience with leading RF service providers and vendors RF Engineer for AT&T, Optimization Team in Portland, OR
Lead Optimization Engineer in Nokia formerly Alcatel-Lucent for their AT&T Markets of MO-KS, RF Optimization Engineer for Alcatel-Lucent for AT&T markets of MO, KS, NE, MN.
Post-launch Optimization of wireless networks
Pre-launch Optimization of wireless networks
Event analysis of RF events from UE logs, eNodeB traces, MME traces
Real-Time traffic balancing for venue locations Use of ATOLL, cell planning tools
In-building systems deployment and testingCW testing
Proficient at using QCAT, eDAT, Actix, WindCatcher, MapInfo, WIRESHARK, Agilent E6474A, XCal, BTS Manager and NetHawk
Proficient at Microsoft excel, office and application
Sound knowledge of TCP/IP and real time networking protocols
Excellent at team handling as well as coordinating teams
Achieved implementation of At&t's Advanced LTE Features on Multi-Carrier LTE markets in St Louis, MO; Kansas City, KS for Alcatel Lucent/ NOKIA.
o Thorough understanding of At&t's ANOVA process & GNG Full for pre-launch optimization of multi-carrier LTE markets.
o Extensively analyzed JDSU and Nemo logs to resolve RF events seen from single-site, multi-site, cluster drive test data to achieve market KPI levels.
o Analyzed failure events at intra/inter Frequency, inter & intra technology levels for both Circuit-Switched and Packet-Switched sessions providing solutions for failure resolution thereby promoting enhanced network performance.
o Analyzed failure events at intra/inter Frequency levels for newly deployed VoLTE, LTE-A services enhancing network performance.o Performing tuning up of the overlaid 1C/2C LTE network to achieve uninterrupted LTE service for AT&T customers.
o Resolved database issues from parameter audits checks done as a part of pre-launch/ post-launch optimization improving RF performance for the network.
o Real-time tuning of RF parameters to balance traffic for special events in a highly crowded venue to maximize service capabilities enhancing user experience.
o Performed optimization for COW sites used for providing additional services to special venue event areas.
o Performance optimization for post launch optimization using service level KPI's to achieve better performance from user experience of network.
o Traffic balancing between multi-carrier LTE sites using service KPI's achieving enhanced spectrum utilization for different bands.
o Extensive intra technology neighbor list planning along with strategic neighbor planning of inter technology neighbors.
o Analyzing the handover test results ensuring proper handovers between multi-carriers, Inter & Intra Freq within single LTE carriers as well as strategically IRAT handover to designated underlying UMTS layers.
o Performed traffic balancing between multiple LTE Carriers to ensure more bandwidth utilization for all carriers and provide enhanced capacity to the LTE users in the network.
o Analyzing the shakedown test results to ensure RF propagation while achieving optimal performance of the LTE overlaid sites and reporting issues.
o In-Dept analysis of SSV's to inculcate the new sites as a part of commercial network without interruption in service.
o Actively involved in innovative trial testing of Shakedown process analyzing the technical aspect of SSD analysis
LTE Optimization- Achieved market performance improvement of LTE network in Portland, Oregon for AT&T.
o Thorough understanding of optimizing LTE network using service KPI's.
o Tweaking parameters on individual/group of eNodeB's using the SAM network performance tool to achieve enhanced performance on the chronic affected eNodeB'so Adjusted the electrical tilt on sites using the RET module via the SAM interfaceo Ensured market KPI's are achieved by troubleshooting chronic sites while finding hardware related issues, alarms, diversity imbalance issues, UL Noise on sites.
o Monitoring daily performance of chronic sites to ensure the performance by extensive usage of NPO tool to check performance based counters on sites.
o Efficiently used the internal tools like Quantum, RMap, etc to quickly analyze high runner sites.
o Actively used Atoll design tool to understand topology based propagation to prevent overshooting/ coverage loss in concerned areas.
o Achieved resolutions to prevalent market wide issues using Mapinfo, vertical mapper, WindCatcher, Actix Analyzer tools through layer3 analysis of targeted drive data
o Provided long term resolutions for certain targeted areas by analyzing design v/s drive data thereby pointing out design limitations which can help in future enhancements in the terrain challenged areas
LTE Optimization- Achieved implementation of At&t's wave 1-4 LTE markets in St Louis, MO; Kansas City, KS; Wichita, KS; Omaha, NE; Minneapolis, MN for Alcatel Lucent.
o Thorough understanding of at&t's GNG Lite process for optimizing LTE markets.o Analyzing the shakedown test results to ensure RF propagation while achieving optimal performance of the LTE overlay and reporting issues.
o Extensively analyzed QXDM/ Nemo logs checking the RF events while achieving market KPI's.o Analyzed failures at inter & intra RAT levels in both CS and PS domains.
o Performing tuning up of the overlaid LTE network to achieve uninterrupted LTE service for AT&T customers.o Extensive intra technology neighbor list planning along with strategic neighbor planning of inter technology neighbors.
o Analyzing the handover test results ensuring proper handovers within LTE network as well as strategical IRAT handover to designated layer.
o In-Dept analysis of SSV's to inculcate the new sites as a part of commercial network without interruption.
LTE Pre-Launch Optimization- Successfully performed Implementation of Verizon LTE network in Cleveland, OH for Alcatel Lucent.
o Performed optimization of the LTE network to achieve the market launch meeting the target KPI's.
o Performed neighbor list planning, cluster drive analysis for issues related to sector swaps, antenna-line problems for LTE market.
o Analyzed the coverage of the network using the mapinfo tool as well as a coverage analyzer to perform tuning to meet thresholds in different loaded conditions. Analyzed the performance to check networks accessibility and retain ability.
o Processed data using the ALU proprietary post processing tool to analyze different parameters of the network looking for trouble spots and provide resolution for it.
o Analyzed handoff related issues in the network to tweak the handoff parameters.
o Analyzed the drops occurring in the network to look for issues degrading the network.
o Assisted the drive testing team to solve some issues they spot in the field.
CW Testing- Successfully performed the continuous wave testing pre new site deployment for AT&T in Aspen, CO; Gainesville & Tampa, FL.
o Verified the current strength of signal levels seen in the surrounding by doing a baseline testing of the area.
o Analyzed the venue/target area using a spectrum analyzer to check for neighboring macro pilots on different channels to verify the amount of macro RF leakage in the area to get a clear idea for neighbor additions.
o Mounted a test transmitting antenna at different locations/ heights (when available)/ tilts and collected data for the specified channels using the Agilent E6474A scanner as well as test phones.
o Plotted the data on MapInfo to visualize the in-field signal penetration/ dominance for the different antenna scenarios and suggested the best scenario to achieve maximum coverage for the venue/ stadium locations.
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