Mahmoud Ellabban

Radio Access Network Principal Engineer

 

Educational Degree:Masters in Telecom, Institute National Polytechnique Grenoble- France

Home Address:4707 Club Terrace Ln, Frisco, Tx, 75034

Personal Email:mahmoud.labban@gmail.com

Telephone Number:+1 214-600-0650

Citizenship:United States of America

 

 

	OBJECTIVE
With 15+ years in the Network and Telecom industry, my career spans technical solution and service delivery for LTE / HSPA + / HSPA / UMTS, technical project management, Financial Audits, technology consulting, and product development. Recently trained on Cloud system for AWS Amazon EC2, Amazon S3and created VN and developed SW for platform as a service. My expertise is in leading teams delivering End-to-End technical solutions and solving problems related to network roll-out, product development, and strategically thinking of improving business need and profit.

 

	MAJOR SKILLS
·   Design and Optimization Skills with KPIs settings, Pre and Post Launch for all technologies\ ·    Identify business opportunities with Customers, suppliers and vendors ·   Develop new RF processes and present proposals based on Customer and market needs ·   Provide leadership and mentoring directions to team members ·   BIG DATA Training, Amazon (AWS) – October 2015 ·   PMP Certified 2013 ·   Cost Management and Financial Audits ·   E2E Understanding of the Network Topology for: Multi Vendors / Multi Technology knowledge ·   LTE/IMS and VOLTE Network Architecture Analysis & eMBMS design and Optimization.

 

EXPERIENCE

v      RAN Solution Architect – AIRCOM INTL (TEOCO) – Texas (September 2013 – Present):

 

Project 1: VERIZON WIRELESS – LTE eMBMS Multicast Lead –PDI Team– March 2015 till date:

 

·       Lead and Train regional markets to Test and Deploy eMBMS service on Cloud (ALU and Ericsson).

·       Full understanding of End to End network setup and configuration for Core and RAN nodes (BMSC, BVPS, MME, Cisco and ALU Routers 7750 and 7705)

·       Design eMBMS Configuration (SDCH, rfAllocation, MBSFN ID, SAID, RB Allocation,etc…in correlation with capacity consideration).

·       Optimize Unicast and Multicast LTE Services to improve SINR/BLER and other performance KPIs

 

Project 2: SPRINT - Backhaul Circuit Data Analytics & Optimization Lead_Nov 2014 – Feb 2015:

 

·       Evaluate and analyze Sprint current backhaul, trunk, and high capacity access facilities networks (DS0, DS1, DS3, OC) by market or LATA.

·       Evaluate completed and forecasted conversions to client’s new technology footprint and identify facilities that can be completely eliminated or consolidated to other facilities.

·       Carrier Access Billing and Access Tariffs Knowledge

·       SONAR and Access DB Query usage to pull traffic report and billing items needed for Audit.

 

Project 3: AT&T - LTE LCQI cluster improvement Optimization Lead – LA Market – June to Nov 2014

 

·       Conducting Trials for LCQI improvement especially DL Throughput and  Load Balancing

·       Daily Cluster Monitoring and Parameter Tuning for Worst KPIs offenders

·       Weekly meeting for Cluster LCQI progress.

·       Guidelines for Proper handover and Reselection procedures and parameter settings.

·       VOLTE Pre-launch Optimization, SIP message analysis

 

Project 4- SPRINT - Radio Frequency Manager– DFW market – Jan to May 2014:

 

·       Understanding customer requirements and turning them into functional tasks.

·       Defining project deliverables and reviewing Scope Of Work

·       Developing solutions that resolve customer network problems and improve the performance of 3G and LTE on E// and ALU vendors

·       Coaching Local team and Leading the Analysis and Troubleshooting of the 3G and 4G LTE network Events for several projects using the best practices experience. Troubleshooting included Blocked Calls, Dropped Calls, Low Radio Throughput, Handoff Failure, etc…

·       IMS and VOLTE Features Testing Process preparation.

·       Setting up Post Cluster Launch Methods and Procedures.

 

v      LTE Subject Matter Expert – T-Mobile – California-USA (May 2013 – August 2013):

 

LTE Radio Design, Initial Tuning and Optimization Technical Lead

T-Mobile (South California and San Diego Market) Subject Matter Expert:

 

·                   Coaching the Local Teams and transferring the Technology knowledge to the regional Engineers

·                   Setting Up Procedures for Tuning and Optimization

·                   Pre Launch Rollout Audit and Monitoring

·                   Post-Launch Optimization and Network Performance Monitoring

·                   Weekly Meeting with Engineers and Management for following up the Network improvement

·                   VOLTE Features Testing and Trial.

·                   Rehome and Software upgrades

·                   Creating scripts for tuned parameters settings to improve the Accessibility and Retainability

·                    Procedures to improve DL Throughput for better user.

 

v LTE Technical Design & Optimization Lead – AT&T California - USA (Sep 2011 – May 2013):

 

LTE Radio Design, Initial Tuning and Optimization, Western Region Technical Leader

AT&T - USA (Sept. 2011 – May 2013)

 

·LTE Radio Network Tuning and Optimization

·                    AT&T LTE Radio Network GOLD Standard Parameters Testing.

·                    VOLTE Testing, L3 messages, RTP/RTCP protocol

·                    VOLTE Metrics and KPIs definitions

·                    UETR, X2 and S1 Transmission Interface tracing and L3 messages Analysis. Alarms, Discrepancy Audit and HW troubleshooting.

·                    Coordination and Weekly/Monthly Reporting to AT&T Management entities.

·                    Drive Test Analysis. Performance Counter KPIs Definition. Performance Monitoring and Parameters change for Optimization purpose

·                    Intra LTE / Inter LTE and IRAT Handover testing with Samsung / LG for 2 and 3 LTE Carriers on Different bands.

·Customer Knowledge Sharing Presentation Preparation

·                    LTE Background, Attraction Aspects, LTE System Architecture, Tuning Procedures, Golden Cluster Definition, LTE Parameters, KPIs, Features

·LTE Radio Network Design Activities

·                    PCI/TAC Planning, Neighbor Definition, RFDS preparation,

·                    Atoll Simulation for RSRP, RSRQ, SINR, RLC Throughput.

·                    ACP tool usage

·                    Link Budget preparation

·                    Montecarlo Simulation

 

 

v  ERICSSON-INC, Radio Access Network Expert (Sept 2007 - Sep 2011):

 

Project 1: WCDMA / LTE Network Performance Improvement, San Francisco Market Lead – California USA

AT&T - USA (Apr. 2010 – Dec. 2010)

·        WCDMA and LTE Radio network Performance Improvement, KPI Monitoring, and Parameter Optimization & LTE Pre-Launch Tuning.

·        Customer Meetings and weekly customer Performance report preparation and presentation.

·        Cluster Post Launch Optimization, Directed Retry, IRAT, Load Sharing (between different carriers), IFHO, Neighbors, Power, GPEH Analysis.

·        OSS RC - WNCS and WMRR Neighbor work, Alarms, HW issues monitoring and addressing to other groups

·        Sites Re-homing and SW upgrade performance monitoring.

 

 

 

Project 2: HSDPA and Multi Carrier Optimization Consultant

Meditelecom - Morocco (Jan 2010 – March 2010)

·        Second carrier implementation, Load Sharing parameter settings and Optimization.

·        HSPA implementation, KPI setting and parameter Tuning, Service Based Handover Feature implementation

·        Setting up GPEH, UETR, UEH traces and Trace Analysis using TEMS-Visualization.

·        Drive Test Analysis using TEMS-investigation.

·        Weekly customer meeting and reporting

 

 

Project 3: WCDMA Optimization and Performance Team Leader

Vodafone - Netherlands (April 2009 – Jan 2010)

·        Coverage and Capacity Predictions using Atoll.

·        KPI formulae setting for Performance monitoring on Business Object.

·        E2E Parameter Optimization for improving Admission, Congestion, Handover, special events, Hot Spots, Load Sharing

·        New Sites performance and alarms monitoring including Neighbors Optimization and necessity for SW/HW upgrade

·        Moshell Scripts Running and GPEH Tracing and Analysis.

·        Weekly Performance Report and recommendations to Vodafone.

 

 

Project 4: 3G Network Optimization Consultant

Etisalat Operator (Mobily)- KSA (Oct 2007 – Feb 2009)

·        3G Design, Optimization and Performance Improvement (New sites Design, Drive test analysis, Troubleshooting pilot pollution, low RSCP/EcNo

·        Features implementation and Parameters Tuning for improving network performance.

·        Iur Integration, Second Carrier implementation, HSDPA and HSUPA launch.

·        Setting Accessibility, Retainability, Data Rate, Throughput KPI formulae for CS, Packet, HSPA Services

·        CS, PS & HS Testing, Performance monitoring and analyzing for better Network performance.

·        Dropped calls Reason investigation, Blocked Calls Reasons (low RRC and RAB success Rate).

·        Low SHOv and IRAT Hov Reasons, Low throughput Reason.

·        Enabling Tracing (CTR, UETR, GPEH…) and analyzing them.

·        Weekly customer reporting for Suggestion and Recommendation including Physical Changes (Tilt, Azimuth, TMA, etc…), Alarms and HW

·        failures, HW upgrades, Admission Control Parameter Changes, Congestion Control Parameter Changes, Neighbor Optimization.

 

v NSN – Senior RF Network Engineer (February 2004 – August 2007):

 

Project 1: UMTS RF Consultant

STC - KSA(May 2006 – August 2007)

·Parameters Optimization, HSDPA parameter and counter settings, Timers changing, Activating and deactivating features.

·          IMSI traces Analyses and Uu traces Analyses using ACTIX software, this includes:

·                       Coverage Analysis and Quality Analysis for HSDPA in addition to the CS & PS services.

·                       Event Analysis for HSDPA and R.99 traffic (Drop calls, call setup failures…)

·                       Layer 1/3 Message Analysis. Protocol Stack Analysis (HSDPA & R.99)

·                       Recommendations for solving dropped calls, Pilot pollution, missing neighbor, tilt setting, QoS (KPI verification):

·                       Counters and KPI formulas discussion with customer, Reporting & Analyzing worst cells and suggesting modifications

·                       Coverage Statistics Monitoring (RSCP and EcIo average/MOC, MTC, MMC setup time).

·                       Accessibility Statistics (CSSR, RRC Connection Success Rate, RAB Success Rate), Retainability Statistics (Drop Call Rate).

·                       Mobility Statistics (SHO Success rate, Inter RAT HO success rate, CCO) and Integrity Statistics (Average Data rate for PS services)

·        Drive test team leading and coordinating

 

Project 2: CDMA Design and Planning Engineer

Vodafone – Germany (Sep. 2005 – March 2006)

·        Design and propose the nominal Radio plan of 3G network service including HSPA.

·        Estimate Radio network elements & configurations to be implemented for traffic handling.

·        Traffic Model Generation, Link Budget Calculations, HW Dimensioning and Indoor/hot Spot/VIP consideration to define exact number of sites.

·        Scrambling Code planning, URA, LAC, NodeBid, Cellid, CPICH power, tcell, Neighbor Planning

·        ASSET 3G planning tool used for site locations definition and several Coverage Plots and Monte Carlo Simulations preparations for PS/HSPA

·        NPR and NDR (Network Planning and Network Design Report) preparation and Discussing them with Customer.

 

Project 3: GSM Network Optimization and Field Engineering

STC - KSA (Feb. 2004 – Aug. 2004)

·        Preparing weekly and Monthly field optimization reports using TEMS Investigation

·        Initial and Final Site survey, Site Auditing, Site Investigation, RF site surveying (Prepared Site Survey Reports, RSD/SARF reports)

·        Roaming Test between two operators

 

v     TRAININGS

 

ØManagement and Technical Training Courses

·        LTE Optimization Workshop, LTE Radio Network Functionality.

·        LTE Air Interface and Protocols & Procedures.

·        WCDMA Protocols and Procedures, WCDMA Radio Network Functionality

·        N&TC Radio Seminar – Langkawi, Malaysia [W10, LTE technology]

·        Service Delivery Competence Management WCDMA Air Interface

·        Competence Management, Security Sally, SMS, Primus, Service Delivery Career Model

 

v     Skills:

 

Major Computer Skills and Tools:

·           Mapinfo, Geolocation GIS

·           Asset Design Tool, Atoll, ACP

·           ACTIX

·           TEMS Products

·           OPTIMA Performance Tools, Business Object

·           Excel, word, Access

·           SQL and C⁺⁺