Summary
Overview
Work History
Education
Skills
References
Timeline
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CHALLA RAJESH

CHALLA RAJESH

RF - Network Planning & Optimization Specialist
Chennai,Tamil Nadu

Summary

Dynamic technology-driven professional with over 15 years of expertise in RF optimization, network planning and optimization, and 5G NSA technologies. Currently serving as a Network Planning and Optimization Specialist at Nokia India Pvt. Ltd., with proven capabilities in site-level KPI analysis, drive analysis, and optimization for 5G NSA systems. Skilled in collaborating with implementation teams and vendors to support network growth and RF optimization initiatives, including conducting RF surveys for new site planning. Recognized for exceptional delivery management skills, consistently meeting deadlines while maintaining high-quality standards, complemented by strong organizational, analytical, and problem-solving abilities.

Overview

19
19
years of professional experience
4
4
Languages

Work History

Network Planning and Optimization Specialist

Nokia India Pvt. Ltd.
Chennai
08.2019 - Current
  • Expertise in Drive log Analysis using Actix(Post Processing tool) to improve Time on 5G and Throughput on Cluster level and Site level.
  • Expertise in Initial Site Optimization & Acceptance of 5G NSA sites reference to the Drive log analysis using Actix.
  • Expertise in Site & Cluster level Acceptance report preparation.
  • Post swap KPI monitoring and responsible to clear the issues with concern team coordination.
  • Pre and Post parameter audit to align the parameters reference to the design using RADAR tool.
  • Recommending Changes and implementing the Changes using Netact CM Operations Manager.
  • Pre-Post KPI Monitoring post changes to ensure no negative impact and take necessary roll back actions after discussing with customer.
  • Drive route creation using Mapinfo / MUSA.
  • New Features testing & implementation like Volte, mMIMO, CA, CSFB, SRVCC.
  • VOLTE KPI's CSSR, DCR, HOSR (X2, S1), DL User throughput part of daily optimization.
  • Daily KPI's monitoring and reporting, analysis KPI's (RRC, E-RAB, Service Drop etc.), including worst cells troubleshooting
  • Responsible for reducing congestion and drops, improving the Handover, Location Update, Paging & CSSR in his designated area, issuing capacity requests whenever needed.
  • Expertise in data handling for Schema tool to retune Frequency & Handover retune for entire circle.
  • Knowledge of RF communication fundamentals and LTE functioning of Features MLB, ANR, CSFB & Beam Forming.
  • Knowledge about all Nokia BTS (Ultra, Flex, Multi Radio & SRAN) & RNC's.
  • Optimizing the BSS parameters and fine tuning the parameter as per the requirement
  • Managing Neighbor Statistics analysis for neighbor trimming
  • Optimizing of New and neighboring sites after a new site in a Cluster
  • Carrying out Physical optimization that includes suggesting Antenna Re-orientation, Antenna Height Change, Change in Tilt, Relocation of Site.
  • Project: TELUS & BELL Canada || SPRINT || Technologies used: 5G -NSA / LTE

TSG Lead

Nokia Networks India Pvt. Ltd.
06.2015 - 07.2019
  • Responsible for E2E 3G Second Carrier Planning.
  • C-RNC, MCRNC Planning, LAC-RAC Creation at MSS & SGSN end, Parameter Optimization, ICSU Load monitoring & Fill-Factor Monitoring, NodeB migration Plan & Co-ordinating the team to close the same on time.
  • Responsible for total alive BSC-RNCs in M&G Circle (Rest of Mumbai) -
  • No of RNCs-MCRNCs & RNCs – 34
  • End-to-end execution of Island WBTS removal activity & LAC discrepancies clearance in Network.
  • Responsible for TAC Planning and LAC – TAC mapping reference to the nodeB migration in progress.
  • Responsible for LAC TAC audit to clear the discrepancies if any.
  • Responsible for LTE related license audit & distribution in CLS server reference to the roll-out planned.
  • Initiating LAC split based on PSC received.
  • Associated with WBTS, LTE & RNC License audit, distribution & activation on particular time interval.
  • New OSS Planning on based of existing OSS utilization & cluster-wise geographical distribution. OSS Utilization calculated with OSS Capacity on based of no of TRX in 2G, no of cell count for 3G+4G, Planned Sites in network.
  • RNC ID Standardization activity completed for 34 RNC's.
  • Megaplexer mapping of all the eNodeB's available in the NW.
  • 3G Nodes KPI monitoring post SRAN swap.
  • Responsible for new GGSN Mapping on eNodeB's.
  • Project: NOKIA – MS Vodafone, Bangalore ||MS Vodafone, Pune|| Technologies used: LTE, 3G
  • Project 2: VODAFONE_KARNATAKA

Sr. RF Engineer

ERICSSON INDIA GLOBAL SERVICES PVT LTD
Banglore
04.2013 - 06.2015
  • End to end operations that include the network performance and optimization of 3UK and EE networks on site level.
  • Responsible for Network KPI Maintenance (Voice CSSR, DCR, HS Accessibility and HS Ret, Throughput).
  • Daily monitoring of the KPIs and performed in-depth analysis for the degradation of the KPIs.
  • Checking the alarms and raising the trouble tickets with the detailed explanation and recommendations about the issues on IPCM.
  • Monitoring the Top 10 worst performing cells and optimizing.
  • Applying special event parameters on the site covering events/ Football stadiums to support high traffic.
  • Parameters and neighbor's inconsistencies Check for SWAP sites and CR Preparation.
  • Recommendation for Parameter changes based on analysis.
  • Congestion Analysis for Power, code and channel elements and recommendation for Traffic balancing and CE expansion Plans execution.
  • County level analysis for Top Impacting Sites for CSSSR, DCR and HS.
  • Weekly Customer Slide Pack Submission with optimization recommendations given during the County analysis.
  • Project: MBNL_ Joint venture Company owned by 3UK and EE || Technologies used: 3G & LTE

RF Engineer

NOKIA SIEMENS NETWORKS
Chennai
07.2010 - 04.2013
  • Analyzing the performance of KPIs before and after the swap activities (Migrating from ultra to flexi)
  • KPI monitoring and RF performance analysis using OSS stats.
  • Neighbour Plan and Audit of 2nd carrier activation of SFR/France Network – 3G.
  • Project: Nokia- SFR – FRANCE & ORANGE – SWITZERLAND || Technologies used: MapInfo 9.0, Netact.

Senior Engr RF Planning & Optimization

Prithvi Information Solutions PVT Ltd.
Hyderabad
06.2009 - 07.2010
  • Nominal Planning for AP circle using Atoll as per the guidelines of the customer (ETDB).
  • Nominal selections for the AP circle with reference to the customer coverage Requirements.
  • Responsible for getting acceptance of nominal plan from the customer with reference to the prediction plots generated using Atoll planning tool.
  • Responsible for validating the surveyed nominal with prediction plots and select/reject the nominal.
  • Validating the Survey report and maintain the data base of all the sites.
  • Planning of New sites, highway, infill, Roaming, and new town.
  • Preparing RND data and sending to customer for implementation.
  • Handling RF survey Tracker, project development tracker.
  • Dealing with customer for all the RF related issues and solving them.
  • Tracking Development of Project.
  • Project: Nominal Planning of ETDB Project for AP Circle

RF Engineer

NOKIA SIEMENS NETWORKS (AP - Consultant)
Hyderabad
01.2008 - 03.2009
  • Capacity and coverage sites planning using Map Info, M Com and Netact.
  • New site plans for existing town(cluster wise) – finalization based on current coverage, coverage gaps & capacity needs, IBS specific requirements , Entry / exit points for improving in roaming traffic / revenue.( Available prediction plots, actual towns drive reports , S&M inputs for improvements / COI areas can be used while decision making)
  • Responsible for RF survey & Cell planning of new cell sites for capacity as well as coverage.
  • Frequency planning & capacity planning for upcoming sites.
  • Project: Bharati Airtel – TN Circle Drive test & Survey Engineer.

RF Engineer

ASTER TELE SERVICES
Hyderabad
05.2006 - 01.2008
  • Capacity and coverage sites planning using Map Info, M Com and Netact.
  • New site plans for existing town(cluster wise) – finalization based on current coverage, coverage gaps & capacity needs, IBS specific requirements , Entry / exit points for improving in roaming traffic / revenue.( Available prediction plots, actual towns drive reports , S&M inputs for improvements / COI areas can be used while decision making)
  • Responsible for RF survey & Cell planning of new cell sites for capacity as well as coverage.
  • Frequency planning & capacity planning for upcoming sites.
  • Project: Bharati Airtel – TN Circle Drive test & Survey Engineer.

Education

B.E - Electronics & Communications Engineering

ANNA University
Kanchipu
01.2005

Skills

  • RF optimization expertise

References

References available on request

Timeline

Network Planning and Optimization Specialist

Nokia India Pvt. Ltd.
08.2019 - Current

TSG Lead

Nokia Networks India Pvt. Ltd.
06.2015 - 07.2019

Sr. RF Engineer

ERICSSON INDIA GLOBAL SERVICES PVT LTD
04.2013 - 06.2015

RF Engineer

NOKIA SIEMENS NETWORKS
07.2010 - 04.2013

Senior Engr RF Planning & Optimization

Prithvi Information Solutions PVT Ltd.
06.2009 - 07.2010

RF Engineer

NOKIA SIEMENS NETWORKS (AP - Consultant)
01.2008 - 03.2009

RF Engineer

ASTER TELE SERVICES
05.2006 - 01.2008

B.E - Electronics & Communications Engineering

ANNA University

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