Engineer Electrical

ASHHAD MOHAMMED

+ 908-***-****, ***************@*****.***

OBJECTIVE

Seeking a challenging position to professionally grow, utilizing my

academic and industrial experience in the field of wireless engineering.

SKILLS

. Experience in RF Design, Optimization & performance for LTE & WCDMA

technologies.

. Solid understanding of LTE Network Architecture: EPC- MME, HSS, SGW, PGW,

PCRF, XMS;

eNodeB components: RRH, TRDU, CCM, CEM; LTE Air Interface: OFDMA, MIMO,

SC-FDMA.

. Network element interfaces: S1-MME, S1-U, S6a, S11, S10, S5/S8, Gx,

Radius, Diameter, IMS.

. Understanding of call flow, L3 messages, events, IRAT, IFHO.

Troubleshooting skills include adding

neighbors, Physical & parameter changes and throughput optimization.

. Tools: Actix, QCAT, Atoll, 9955 RNP, NEM, MapInfo, WiPS, eDAT, LLDM,

QXDM, RmPC,

NNEXT, Filezilla, Wireshark.

. Equipments: Spectrum Analyzer, Oscilloscope, Frequency generator;

Samsung, HTC & LG UEs.

. Excellent troubleshooting skills with RF tool kits - Nemo, JDSU, Tems,

Agilent

. Working experience with ALU core equipment.

. Knowledge of the LTE protocol stack: PHY, MAC, RLC, RRC.

. Strong understanding of the Layer 3, L1/L2 messages.

. Familiar with events in LTE call flow and MeasID in measurement report

triggering the events.

. Strong understanding of CSFB messaging for MO, MT events - Extended

service request

. Understand the concept of cross connection from RRH to antennas in LTE

. Pursuing Cisco Certified Network Associate (CCNA)

. Completed ALU training for NRS - 2 ( Network Routing & Switching)

. Intermediate level C programming & VB skills for developing macros.

. A very fast learner without official training and highly focused and self-

possessed in fast-paced,

demanding environments.

. Pro-active & very strong "Can do" attitude. Excellent communication,

inter-personal, analytical

and troubleshooting skills.

EXPERIENCE

LTE RF Optimization Lead Engineer Alcatel-Lucent, OH/MI (Feb'12 -

Present)

> Lead Engr for ALU optimization team for AT&T LTE deployment in OH & MI

markets.

> Leading a team of RF optimization engineers for deep dive cluster

analysis.

> Interacting with customer on weekly basis to provide updates on

optimization and present the KPIs.

> Represent the market for progress or issues in the project on weekly

internal call with senior directors.

> Run SIB19, LAC/TAC & Parameter audits periodically and fix any

mismatch or discrepancies.

> Implement RET in SAM required for growth site or optimization tilt

recommendation.

> Created AR / incubation(AT&T) tickets & worked closely with SME to

investigate and resolve the same.

> Detected interference in the spectrum and was responsible for

retuning.

> Analyze the UE logs & eNB traces for DO / DV UEs from hasati to

optimize the cluster to meet the

target KPIs

> Performed in-depth Call drops & Access failures for CS/PS and

recommended changes to improve

retainability and accessibility KPI.

> Understanding of the calculations of hasati KPIs based on iterations.

> Developed set of Macros for analysis to have the team work

efficiently.

> Troubleshoot areas with poor RF performance and recommend parameter

changes accordingly

> Recommend physical & parameter changes in area of IRAT events to

improve % time on LTE

> Analysis for extended service request for MO/MT when UE camps on WCDMA

resulting in CSFB

> Analysis for Multi-RAB Retainability & Accessability

> Documented detailed reports for the cluster drive analysis

presentable to the customer

> Managed Single Site Verification, IRAT and Intra freq LTE handovers to

ensure sites are cleared from

swapped sector and cross connection issues.

> Create and maintain the neighbor list in the SAM

Protocol Test Engineer Samsung Telecom, WA (Nov'11 - Jan '12)

> Responsible for deep dive analysis for UE logs for various s/w loads

under development.

> Execution of test cases which included PS/CS calls & throughput tests

> Work with developers to test latest UE loads and schedule periodic

testing to monitor improvement in

performance.

> Data collection for all the test scenarios using NNEXT & QXDM required

by Samsung R&D team

LTE Trials Engineer Alcatel-Lucent, NJ (Jan '10 - Aug '11)

RF LTE Design Engineer

> Radio Network Design for LTE system using ATOLL.

> This included the process of adding sites, changing Azimuth/tilts to

improve coverage and generate

prediction plots for RSRP, RSSI UE UL/DL Thputs in ATOLL.

> Develop Test cases for LTE trials and define KPIs for various

customers.

> Co-ordinate with RF performance team to analyze the processed data

using eDAT and compare with the

design predictions for network optimization to achieve optimal

performance.

Core Network Element Integrations

> A member of LTE trials team responsible for LTE core network elements

integration.

> Assist in designing the IP- plan for the LTE core network and

responsible for interconnections.

> Configure ALU 7705 SAR as interface between core and eNodeB.

> Connect each of the CEM using telnet session to configure IP and load

the s/w on CCM using NEM

> Creation of eNB database using WiPS by defining the basic parameters

like freq, BW and Tx power.

> Recommended parameter changes as in UE sensitivity, cell radius (ZCZC)

to achieve better performance

> Integration of XMS for eNB management and provisioning.

> Used network analyzer - wireshark to troubleshoot the interfaces in-

between the network elements.

> Hard wire the UEs with appropriate attenuation to RRH for any lab

testing.

System Testing

> Design test plan for the LTE system based upon the customer

requirements.

> Test plan includes

. System performance: Throughput analysis

. System capacity: Multi User test scenario

. Handover: Mobility testing

. Latency: End-to-end system latency test

. Network Coverage: Link Budget test, RSRP coverage

> Program the SIM (MCC, MNC) using uSIM for the test devices as per the

HSS database.

Teaching Assistant/Lab Instructor NPU, CA (Apr '08 - Dec '09)

> Lab instructor for digital electronics for undergraduate courses.

> Teaching Assistant for Advanced Computer Networks & Wireless

communication courses.

Electrical Engineer Grow controls electronics, India (May '07 - Dec '07)

> Design interface for various microcontrollers with integrated power

supplies to provision I/O peripherals

> Developed Embedded C codes to integrate LCD, Hex keypads drivers with

8086 processors

EDUCATION

M.S. (Electrical Engineering) (G.P.A. 3.7/4.00)

Northwestern Polytechnic University, California, Dec '09

B.S. (Electronics and Communication Engineering)

Jawaharlal Nehru Technological University, India, Apr '07

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