SUMMARY:

• 5+ years of experience in UMTS and LTE RF Optimization, planning and design. (LTE/UMTS/WCDMA/HSDPA/HSPA/GSM/GPRS/EDGE).
• Experience in working on Radio Access Network (RAN), Core and IMS network elements like NodeB, eNodeB, BTS, BSC, RNC, MSC, SGSN, GGSN, MME, HSS, S - GW, etc.
• Hands on experience of Configuring, Integrating and setting up various interfaces (Gb, A, IuCS, IuPS, Gn, Gr, Gi, X2, S1U, S1MME, SGi, S6a, S11, S5/S8, Gx, Rx etc.).
• Deep Knowledge of 2G/ 3G/ LTE protocols such as SIP, NAS, S1AP, X2AP, GTP-C, GTP-U, Diameter, SCTP, UDP, TCP, RTP, SCCP, SS7, MTP etc.
• Experience in network integration, telecom protocol software Analysis, Call Flows, Testing of End-to-End GSM/WCDMA/LTE Wireless Applications.
• Experience in operation and maintenance ofGERAN network(BSC/BTS)and goodworkingknowledge of UTRAN/E-UTRANnetwork (RNC/NodeB/eNodeB).
• Performed tests related to Call Processing, RAT Selection, User Experience, Inter-RAT mobility, FOTA, CSFB, CMAS Alert’s, SMS, and MMS.
• Experience in various tools used on different interfaces for Call Tracing and Debugging.
• Extensive experience in Managing Design & Optimization Teams, monitoring and analyzing KPIs, Interacting with Customer for KPI acceptance issues and their resolution.
• Familiar with Design tools Asset, Atoll, Netplan & Schema Mentor.
• Experience with using Network Integration and Testing tools such Agilent, Actix Nemo, TEMS, JDSU, Actix Spotlight, etc.
• Hands on experience with Analyzing tools like WireShark, Net scout, MS Network monitor, etc.
• Providing telecom network & extending communication facilities through planning, commissioning, operations & maintenance of telecom network.
• Comprehensive knowledge of Wireless communications fundamentals and core networking.
• Strong technical skills in RF tuning and optimization processes.
• Deployed Airtel UMTS networks in different markets.
• Strong knowledge in Excellent personal and Self-Management skills.
• Excellent communication and written skills.
• Ability to perform tasks in a team as well as individually with ease.
• Quick learner, goal oriented and adaptable to changes.

TECHNICAL SKILLS:

RF Tools: Agilent E6474A, Street Atlas, Microsoft Streets and Trips, Google Earth, QXDM, QPST, ACTIX, Tektronix K1205, Wireshark, ETS Log Analyzer, Net Scout, MS Network Monitor, JDSU, TEMS, Anite

Software skills: Microsoft Office, Windows operating systems (Windows 2000, XP, Vitsa, 7, 8, 10, Unix, Linux).

Technologies: LTE, VoLTE, 2G, 3G, GSM, CDMA, UMTS, W-CDMA, GPRS, EDGE, UMTS,, Mobile IP, Bluetooth, Mobile Hot Spot, NFC, Wi-Fi Calling.

Networking: OSI, TCP/IP, IPV4, IPV6, VoIP, Ethernet, ACL, ATM, Trunking, VLAN, VTP, VPN, VLSM, Cisco IOS, NAT, Frame Relay, LAN, WAN, WLAN, Routing protocols, Switching concepts.

Programming Languages: C, C++, MATLAB, Python

PROFESSIONAL EXPERIENCE:

Confidential, Plano, TX

LTE Systems Engineer

Responsibilities:

• Working as a Systems Integration engineer for LTE EPC core network elements mainly eNB, MME, PGW, SGW, PCRF, S4-SGSN.
• As Integration engineer working on validation of Network Interfaces S1-U, S11, S6a, S5/S8, SGi, Gi, Rx, S9 and IMS interfaces
• Handling multiple projects related to LTE-IMS Core infrastructure and interfaces integration
• Working on Juniper, ALU, Ericsson vendor hardware platform in the E2E LTE core network
• Expertise using testing tools Wire shark, JDSU, Net Scout and TEMS tools to collect network logs
• Network and Analyze the logs and reporting issues in Quality Center (QC) and JIRA for different vendor platforms
• Involved in troubleshooting network issues, analyze logs to identify the root cause and provide resolutions
• Successfully tested and integrated the LTE systems (RAN, EPC) in pre-production lab and live environment.
• Led a small team for systems testing for LTE network launch. Managed testing deliverables as a Managed services vendor.
• Validated the operation of LTE protocol stack on multiple platforms by performing interoperability.
• Consult on SRVCC & IRAT implementation Review counter and system KPI report.
• Counter & KPI validation of OSS for LTE.
• Perform RF network optimization activities, Perform link budget analysis, design criteria and traffic analysis.
• Undertaking network performance improvement (KPIs) and optimization tasks.
• Tested and obtained data for various testing scenarios like RF signal measurement, voice calls, Softer Handover, Soft Handover, Hard Handover, GPRS attach, PDP context, IRAT, Single Site Verification
• Performance and compliance tests on various frequency band for handovers and IRAT
• Participation in technical Review and organizing Brainstorming Discussion on the Requirements and Reviewed design documents among cross-functional team members

Confidential, Richardson, TX

LTE Engineer

Responsibilities:

• Test cases related to Attach Procedure, PDN connectivity Procedure, Default/Dedicated Bearer Creation, Modification and Deletion.
• Test Cases related to S1-AP Initial UE messages, S1-AP UE Initial context setup and Release, S1-AP E-RAB setup, Modification and Release procedures.
• Test case logging by enabling S11, S1-AP, S1-U, S6a and S5 Interface Traces and debugging the interface messages as per the Test Cases.
• Successfully setup end-to-end call using UA between User 1 and User 2.
• Tracing SIP and RTP packets in Wireshark - protocol analyzer tool.
• Referred to SIP RFC 3261 where ever necessary

Confidential

RF device test Engineer

Responsibilities:

• Perform tests related to Call Processing, RAT Selection, User Experience, Inter-RAT mobility, FOTA, CSFB, CMAS Alert’s, SMS, and MMS.
• Understood Drive test specification/description.
• Identifying applicable and not applicable features by looking into OEM device Feature/Compliance matrix and checking with documents for test case applicability.
• Perform throughput tests in different RAT’s.
• Testing Cell-reselections and Handovers in idle and mobility scenarios between 3G/LTE and vice-versa.
• Perform Drive test.
• Update QC with Results.
• Daily update to team.

Confidential

RF Engineer

Responsibilities:

• Worked as a RF Engineer in Airtel UMTS Network deployment projects.
• Responsible for investigating the cause of poor coverage and recommend changes to orientation - electrical or mechanical tilts.
• Hands on experience of Data Collection using test simulators like Agilent software and navigation tools such as Street Atlas and Google Earth.
• Analysis of the Handover Success rates and Handover Failure rates by performing IFHO (Inter-Frequency Hand Over), SHO (Soft Hand Over), IRAT (Inter-Radio Access Technology).
• Worked on different technologies like GSM, UMTS, HSDPA/HSUPA.
• Performed coverage, capacity, and performance planning on UMTS network.
• Monitored and reviewed GSM/GPRS/EDGE/UMTS network Key Performance.
• Analyzing drive test information using maps, charts, and workbooks within post-processing tools (Actix, TEMS).
• Analysis of daily KPIs based on Accessibility (Call Setup Success Rates), Retainability (Dropped Call Rates for both Traffic and Signaling), Mobility (SHO & HO Success Rates), and Integrity (Speech Quality, BLER, FER and Throughput).
• Post processing of data, analysis and recommendations.
• Indicators (KPIs) by using Radio Network Performance tools.
• Neighbor definitions for UMTS - UMTS and UMTS - GSM relations.
• Checked INTER-SITE & INTRA-CELL Handovers and perform Neighbor verification.
• Optimization on the basis of performance reports on daily basis and identify the cells where Key Performance Indicators (KPIs) are below the threshold.
• Performed and Hardware and software troubleshooting when necessary.
• Neighbor deletions, Site mapper preparation.
• Worked on SAC/RAC/LAC and UARFCN assignments in UMTS Technology.
• Made recommendations to improve KPI, coverage and dropped call rate.
• Troubleshoot the test equipment used in data collecting like HSDPA & HSUPA Wireless cards, Laptops, Scanners, Antennas, GPS and etc.