Sharan Kumar Ranga
Telecom R&D Engineer
Bengaluru
Summary
•Telecom professional with 10+ years of extensive experience in Telecom domain of which I have 9 years of experience in LTE Product Testing, Quality Assurance including Design Integration , Functional Testing, System Integration Testing,Performance and Capacity Testing,Soak Testing.
• Well versed in 4G LTE-Optimization,Pre - Launch activities, Small-Cell Deployment Strategy .
•Actively worked with cross functional team for debugging critical issues.
• Skilled in troubleshooting, problem resolution and doing an effective Root Cause Analysis (RCA).
• Good Knowledge on ANR, X2/S1 handovers.
• Good Knowledge on Layer 3 and Layer 2 (MAC,RLC,PDCP) procedures.
• Working experience in verifying Device model attributes.
•Support technical Pre Sales business unit and Corporate Team.
•Test execution and log verification for carrier acceptance test.
•Good Experience in analyzing the LTE and 5G Call Flows.
• Experience on working on different test simulator like Polaris NetTest EPC, Aero flex TM-500,ERCOM,Amarisoft.
• Knowledge on TR069 procedure for Device management
•Extensively worked in Data Throughput testing, VoLTE testing,RRC,MAC Procedures
•Developed inhouse automation Tools for the Commscope OneCell product.
• Test Plan preparation for as per requirements and design specifications.
Overview
15
15
years of professional experience
6
6
years of post-secondary education
3
3
Certifications
Work History
Staff Engineer
Celona
03.2021 - Current
- Reviewing the requirements and design documents to prepare a test case strategy for end to end 5G CBRS testing.
- End-to-end 5G system level verification on S/W packages, Nightly Builds & release.
- Collaborate with other teams to integrate AI solutions .
- Design and develop advanced generative models, such as GANs and VAEs.
- Manage the project lifecycle from research and development to deployment and optimization.
R&D Engineer
Commscope Networks India Pvt Ltd
02.2017 - 03.2021
- End-to-end LTE system level verification on S/W packages, Nightly Builds & release.
- Daily & Weekly Release Reporting as requested by Stakeholders.
- Work with release engineers, Product owners to understand impacts and code merges.
- Continual Improvement in QA ,Scope and Test Plan during release process.
- Lead and co-ordinate with development team for debugging issues.
- Reproduction of field issues, Analyzing & Debugging issues.
- Reviewing the requirements and design documents to prepare a test case strategy for end to end system testing.
- Test profile creation and execution on UE Simulators based on various Call model as per the customer requirement.
- Defects Raising & Tracking on IBM ClearQuest.
- Interaction with respective Development team for Defects fix .
- Feature testing : ANR (SON), CSFB,VoLTE,AutoConfig ,Zero Touch,Backup and Restore ,4x4 MIMO,S1/X2AP HO on OneCell LTE system .
- Throughput testing with different Configurations and combinations.
- Stability and Performance testing of OneCell LTE System with various system performance cases.
- WebGUI Testing of OneCell Control Unit Management Wizard.
- Soak test of LTE System on SW packages, Nightly Builds with different Configurations.
- Analyzing Soak test results, KPI Validation & Debugging on Layer 3 and Layer 2 messages.
- Debugging of HO failures,BLER issues ,RACH Failures,Layer 3 Failures.
- Verification of CQI ,SR Configuration and its Periodicity ,DL and UL HARQ Functionalities,RACH Procedures
- Verification of System throughput with maximum capacity .
- Debugging the LTE Throughput issues .
- Testing on LTE system with HDM & DMS (TR069), NMS system tools with different Configurations & Radio parameters.
- Bringing up new LTE system (OneCell) as per Configuration requirement & basic Sanity testing.
- Developed Log analytics tool using python which process logs that are collected on OneCell and provide complete analysis of test run on single click.
- Developed KPI analysis tool using Dash & Plotly which works with result of Log Analytics tool and produce different KPI dashboards .
Senior Engineer
Ericsson India Global Services Private Limited
04.2011 - 01.2017
- SME in Global ITAC. Provide solution and analysis of different issues on LTE & WCDMA network.
- Testing of LTE RAN and EPC core interfaces (Uu, S1AP, X2AP, like MME) with LTE eNodeB.
- Preparation of LTE eNodeB integration files from the customer design document .
- Deployment of Software and Hardware solutions.
- Feature testing and Implementation in Live network.
- Tested and implemented MIMO, ANR, X2, CSFB, CoMP, Carrier Aggregation and configuration in eNodeB and verified.
- Technical support for deployed LTE and small cell solutions .
- Identifying, analyzing and reporting defects found using fault management tools like flow flox, Wireshark.
- Responsible for handling throughput and Performance issues.
- Analyzing the network call flow.
- End to End Deployment for Small cell Solution.
- Software Upgrades of 3G RAN RNC and RBS and LTE eNodeB Nodes.
- Exposure to OSS-RC tools like Winfiol, Remedy, SMO, CNA and OSS N/W explorer tools.
- New features activation, Carrier additions on Ericsson 3G and 4G RAN Nodes
Switch Engineer
Reliance Communications
09.2009 - 03.2011
- POI augmentation, Expansion & Acceptance Testing between the ILTs MSC Support and troubleshooting
- Modifying different Analysis tables such as B-Number analysis, Routing Analysis, Charging Analysis .
- Integrating Network elements with OSS server.
- Implementing RF parameters
- KPI monitoring.
Education
High School Diploma -
ST Thomas High School
Hyderabad 01.2002 - 01.2002
BOARD oF INTERMEDIATE EDUCATION -
SRM Junior College
Hyderabad 03.2002 - 03.2004
Bachelor of Engineering - Electronics And Communications Engineering
SKP Engineering College
Tiruvannamalai 03.2005 - 03.2009
Skills
Polaris NetTest EPC simulator
Accomplishments
- Smart RollOut Tool
- Intelligent Optimization of Wireless Coverage
- Minimizing Costs in Energy Consumption of a Data Center using AI
1. High Impact Finalist for the below ideas submitted at Commscope Innovation Hub.
2. Received Power award, Rock star award for the tremendous effort shown in VF LTE Rollout.
3. Recognized as Key contributor of Ericsson for FY 2014 and 2015.
Additional Information
Im ambitious and driven Telco Engineer.With the passion towards technology and desire to learn new things,I had developed inhouse analytics tools which made the team work more productive and I'm always looking out for an opportunity which is something new and was not planned before.
Certification
Ericsson ETCP-102 IP Technology Certified.
Personal Profile
Name : Ranga Sharan Kumar
Marital Status : Married
Gender : Male
Languages Known English, Telugu ,Tamil and Hindi.
Nationality : Indian
Passport No : J5089567
Timeline
Staff Engineer
Celona
03.2021 - Current
R&D Engineer
Commscope Networks India Pvt Ltd
02.2017 - 03.2021
Senior Engineer
Ericsson India Global Services Private Limited
04.2011 - 01.2017
Switch Engineer
Reliance Communications
09.2009 - 03.2011
Bachelor of Engineering - Electronics And Communications Engineering
SKP Engineering College
03.2005 - 03.2009
BOARD oF INTERMEDIATE EDUCATION -
SRM Junior College
03.2002 - 03.2004
High School Diploma -
ST Thomas High School
01.2002 - 01.2002
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