SOHAIL BABAR

sohailbabar@gmail.com

www.linkedin.com/in/sohailbabar

Dallas, Texas                                           Cell: 214-449-7860

 

PROFILE

 

Professional, with extensive knowledge of telecommunication. Led several New Product Introduction projects of Ericsson RAN. Strong background in customer support of Radio Access network (RNC, RBS, eNode B), Packet Core (IMS, CSCF, & HSS), Expertise in Testing and Integration of RAN & IMS product like LTE, VOLTE, Small Cells, RNC & RBS, IP protocols (TCP/IP, DNS, SIP & Diameter), HP C7000. Software FOA’s & Feature verification. Client focused services to deliver perspective technology based solutions. Consistent high performer by coordinating with other teams to ensure project success to its optimum capacity. Excellent leadership and customer service skills.

 

KEY SKILLS

 

·   IMS system integration, testing and MOP verification

·   IMS nodes, SIP/Diameter Signaling, & Call Flow verification

·   E2E Volte testing and verification.

·   Software, HW FOA’s and feature validation

·   SW/HW upgrades of RBS / e Node B / HP C7000

·   Operational and Engineering Guidelines preparation

·   Interoperability (IOT) testing according to 3GPP standard

·   Integration, Commissioning & Testing of LTE and WCDMA Nodes

·   Network Performance and KPI monitoring

·   RAN SME for Ericsson’s LTE, UMTS Pico and Small Cells Networks

·   TCP/IP, SIP Signaling, Unix / Linux, Moshell, Cygwin, XCAL, XCAP, QXDM, QCAT, QPST, Wire Shark

 

 

PROFESSIONAL EXPERIENCE

Nokia-Siemens USA2015 - Present

IMS System Analyst, Texas

 

·   IMS Testing & Integration: System integration, call flow and feature verification for Nokia-Siemens IMS software releases in Verizon network.

·   IMS System Architecture: Solid understanding of IMS architecture components including CSCF and HSS.

·   MOP: Preparation, testing and verification of IMS MOPs in Verizon Lab.

·   SLA Support: System level support for Verizon IMS network. It includes both for FOA projects as well as care level support.

 

 

ERICSSON USA 2011 - 2014

Software Services, Plano Texas           

Lead LTE RAN New product Introduction

 

·   VoLTE: Test case development, call flow and feature verification in LTE network.

·   RBS Modernization of MSMM & FFI:  Successfully completed the replacement of RBS6000 in Multi Standard Multi Mode (MSMM), different configurations like UMTS+LTE & UMTS + GSM verified during this FOA.

·   MSSM Configuration FOA Project: Successfully completed T-Mobile’s RAN Modernization project by replacing RBS3000 with Ericson’s RBS6000 for Multi Standard Single Mode (MSSM) Configuration. The product verification was completed in the lab as well as in the market.

·   RRUS FOA: Successfully lead the Replacement of Legacy GSM with RBS6000 & RRUS. This enabled customer to deploy new technologies like WCDMA & LTE with other bands like PCS.

·   Software Upgrade and Verification: Completed software L14a software FOA for Sprint (Lab + FIT).

·   Feature Validation: Performed LTE features verification in lab, field and feature demonstration to customers in the lab / live sites.

·   2^nd Carrier Implementation: Implemented 2^nd carrier feature successfully for Sprint’s network (Lab + Fit).

·   MOCN FOA: Successfully optimized this multi operator core network feature in the FIT for Sprint.

·   RRUS31 FOA: Delivered RRUS31 FIT for Sprint in Houston market.

·   Small cells (PICO): Integrated, tested and optimized PICO network. FOA was completed successfully.

·   MOPs/ Test Plan: Hands on experience in preparation of test plans, Feature Requirement Document, Test Object List, Test Plan, Test Instructions and MOPs (Method of procedure) etc.

·   Troubleshooting: Solved complex problems that required substantial log analysis and investigation related to network and call processing.

·   EMBMS Field Trial: Supported EMBMS field trial for Verizon Wireless in Florida.

·   IOT Testing: Network level IOT testing and analysis for ALU (alcatel-Lucent) for their LTE RAN with Ericsson, Huawei and Samsung.

·   Design and implement test cases as per interoperability test specifications for LTE and CDMA technologies.

·   Solved complex problems which required substantial log analysis and investigation related to network and call processing.

·   Test case validation included use of monitor’s tool to verify layer 2 and layer 3 messaging on the

Air interface between OEM mobile devices and our 3G/4G wireless base station & on the Interfaces between eNB – MME, RNC-MSS, and X2/S1

 

 

GLOBAL SUPPORT CENTER, Ericsson, Canada        2010 - 2011

Software Professional Services SME

 

WCDMA & LTE network support for Ericsson’s Global customers.

·   Network Support: Support for LTE and UMTS networks, CSR handling for Ericsson’s Global customers.

·   Emergency Handling: Emergency recovery for UMTS and LTE nodes of Ericsson’s RAN networks.

·   Project Support: Project support for all Ericson’s customers around the globe.

·   FOA Projects: Participated P7FP / W11A FOA for AT&T which includes Software upgrades, Feature testing and TR verification of all new PDU releases for AT&T.

·   RNAM Support: Technical lead of Network Level Support for AT&T of their UMTS and LTE network, besides, provided active support for Emergency Recovery for all RNAM customers. 

·   RNC & Node B Integration: Integration and Testing of RNC3820, along with 300 eNode B’s completed for Rogers, Canada. The project was completed successfully.

·   LTE Integration: Successfully completed 400 eNode B integration and testing for Rogers Canada

·   Troubleshooting:  Troubleshooting like CS/PS call failure, HS/EUL degradation, HSDPA, IU/IUR, throughput, IP routing related issues, call tracing and software upgrade etc. in UMTS and LTE networks.

 

 

Ericsson GSDC, Montreal Canada                      2008 - 2009

Customer network Specialist (CNS) for Rogers, T-Mobile & AT&T Projects

 

·   RAN Network Support for GSM & WCDMA.

·   CSR handling and fault troubleshooting.

·   Customer Project Support.

 

 

Ericsson, Montreal Canada                 2005 - 2007

System Support Analyst for 2G & 3G networks of US & Canada.

   

·   Network Support: Supported Ericsson RAN (WRAN & GRAN) networks, Project support, emergency handling, and troubleshooting etc.

·   Node B Integration & Testing: Successfully completed Node B’s integration and testing for Rogers and T-Mobile WCDMA network.

·   Hardware Expansion: RNC (ETM-F4) boards upgraded successfully in Roger’s RNCs at Montreal Canada.

·   BTS Rehome: Node B’s from one sub rack to others for Rogers Canada.

·   Software Upgrades: Successfully performed P4 level upgrade in Node B’s for Rogers and AT&T WCDMA networks.

·   Troubleshooting for software crashes, Upgrade failure related issues.

·   Project Support: Supported P5 Node B upgrade project for Rogers Canada.

·   RNC Hardware Expansion: Performed ETM4 expansion in Ericsson RNC Node for Rogers, Canada.

·   Hardware Upgrade for Node B: Performed CBU upgrades from two T1 to four T1’s.

·   Operation & Maintenance Support for WRAN network.

·   SIU FOA Project Support for T-Mobile: Integration, testing of SIU, a solution provided by Ericsson for T-Mobile at Seattle Washington.

·   Ericsson Hungary: Successfully lead a project of transfer CSR work from Ericsson Montreal to Budapest Hungary. Mentored Ericsson Budapest about the MUNA ways of working, held training sessions, on site working activities with Ericsson Budapest. The project was completed successfully.

·   Proactive Support for North America:  Performed Proactive Support for T-Mobile & AT&T USA.

·   AXE-810 MSC: Successfully completed commissioning, testing and acceptance of AXE -810 MSC and GMSC of APZ 212 33 with IOG 20C for T-Mobile in Manhattan, NY USA.

·   Miscellaneous Expansions: Different type of expansions like RP bus, ETC cards, T1’s , memory cards KRD devices, Group switch, CP store, TRABS boards, external alarms and miscellaneous devices.     

·   Channel Expansion: Testing and acceptance of 250 new digital channels for AT & T in L.A. market.

·   O&M Support for RNAM customers.

 

EDUCATION

Master in Electronics (M.Sc.), Islamabad Pakistan

McGill University, Montreal, Canada (PMP)

 

Project Management

McGill University, Montreal, Canada

 

CERTIFICATIONS

LTE Certified, Ericsson USA

ETCP IP Certification, Ericsson USA

 

PROFESSIONAL DEVELOPMENT