Summary:

• Experience with LTE,WCDMA, UMTS, GSM, EDGE, HSDPA, HSUPA wireless technologies & TCP/IP, DHCP, DNS, UDP, FTP, SMTP, HSPA protocols.
• Excellent understanding and hands-on experience on wireless modem testing for voice and data call, performed attach and detach procedure using Hyper Terminal AT command
• Tested Smartphone's, Android hand set, Samsung Galaxy P5 Tablet, Samsung Galaxy SII SkyRocket handsets, tested all features, functionality and operability in the network
• Experience with inter radio access technology (IRAT) like hand over on LTE, WCDMA, and GSM, cell selection during power up, cell reselection, inter band and inter RAT cell reselection
• Experienced in verifying signal strength - RSCP, RSSI, EcNO in case of UMTS and RSRP. RSSI RSRQ in case of LTE via debug screen on the device
• Excellent knowledge of the Software Development Life Cycle and Software Testing Life Cycle
• Knowledge on 3GPP protocols & standards (4G/3G/2G), LTE network architecture protocols and physical layer 1
• Good knowledge of LTE parameters, link budget analysis, cell and frequency planning
• Excellent knowledge of wire line and wireless data protocol stacks including RLP, PPP, IP, TCP, IPV6, MIPV6, etc. and IP telephony network , SIP, IMS, and IP telephony standards

Certification

Engineer-in-Training April 2009
Certificate No EIT 134952
Board for Professional Engineers and Land Surveyors
Sacramento CA USA

Technical Skills

RF Tools: QXDM, QPST, QCAT, QMICM, Wireshark
Networking Protocol: TCP/IP, UDP, FTP, HTTP, SMTP, RIP
Wireless network: LTE, UMTS/WCDMA, CDMA2000, GSM/GPRS, WLAN,
Wired network: DWDM/ SONET network, Frame Relay, ATM, DSL, VOIP (H.323, SIP, G.703), SS7, ISDN, Point-to-Point, and switch Ethernet (10/100Mbps LAN); File Zila
Computer Skills: LMS Win XP, Win Vista. Win 7, Win NT server, UNIX, MS SQL Server 2005, MS Office Suite, AMDOCS/Client Relationship Model (CRM), Remedy Ticket system, CSR Tools
Fibre optic Line test tools: Trouble Analysis tool(TAT), Real Time Loop Performance Analyzer (RTLPA), Quality Check (QC), RF Analysis, Automated Measurement Tool(AMT);

Experience

RF Protocol Engineer July 2011-Dec 2011
Confidential, Richardson, Texas
Client: Confidential

• Verified WCDMA 850, WCDMA 1900, GSM 850 and GSM 1900 performance for CS & PS call, SMS,MMS, MRAB, web browsing/streaming/android application download/FTP
• Tested Android hand set, Samsung Galaxy P5 Tablet, Samsung Galaxy SII SkyRocket, in IDLE mode and Mobile mode in 4G_LTE, WCDMA, GSM/EDGE air interface.
• Taken MDM dump, MSM dump logs after RAMDUMP MDM, MSM, KERNEL PANIC and RESET crushed happened, perform STRESS testing, high density testing, over the air testing
• Performed protocol testing using 2 - day Regression test, 1-day Sanity Test. Key Performance Indicator (KPI) test to get download & upload speed for 50MB/100MB files.
• Performed tethered throughput test with TCP Optimizer, non-tether throughput test with QMICM and embedded throughput test, downloaded Apps through Market
• Flashed the phone to engineering mode to captured TCP dumps through adb logging
• Collected MDM with DPL, MSM logs using QXDM and analyzes with QCAT
• Verified IRAT, hard, soft handover, inter & intra frequency cell reselections using QXDM
• Used Android Debug Bridge (ADB) shell command to copy files to or from an emulator/device Instance, query for device instances
• Used ADB to start & kill server, restart the daemon listening on USB & tcp on specified port, enable radio logging, prints output to screen
• Performed MO/MT CS and PS call, SMS, MMS, MRAB etc in forced 2G, 3G, LTE, Automatic mode
• Tested MRB functionality between E-UTRAN to UTRAN, E-UTRAN only, UTRAN to E-UTRAN, UTRAN only and multiple PDP's during drive test
• Performed attach and detach procedure via Hyper Terminal AT command to test combined registration procedure (CS+PS)

System/Technical Support Sept 2009 to June 2011
Confidential, Richardson Texas USA

• Troubleshoot Uverse IPTV, Cvoip, HSIA issues over the phone with premise technician, core & maintenance technician, cable repairer and as well as members
• Troubleshoot & provisioned Residential Gateway(RG), upgraded software, set up usable STATIC IP addresses in RG from block of 8, 16 and 32 IP addresses
• Troubleshoot Uverse IPTV connectivity, picture quality, recording issue by verifying settings, provisioning s of STB/DVR, uploading farm ware
• Validate CVoip audio quality, noise interference including static & cross talk, dropped calls using Real Time Loop Performance Analyzer tool, escalated complex issues to NOC
• Tested call drops, interference and network parameter levels test using RTLPA and proactively resolve RF Optimization field issue with technician to improve system performance.
• Analyzed processed data for cvoip dropped call rate and Access fail rate using RF Analysis tool, Historical trending tool, RF Optimization tool.
• Evaluate downstream/upstream FEC, CV, SES, LOS, max attainable user rate errors, max bit rate errors, modem re-initializations, or no of times modem failed to reinitialized etc
• Perform bandwidth adjustment (down grade or upgrade) among 32 Meg, 25 Meg or 19 Meg profile on the line based on line distance from VRAD to NID, EMI interferences, conductor size
• Produce reports on network error & problem points on the circuit from VRAD to NID using Automated Measurement tool
• Used Trace-rt, ping test to determine total amount of bandwidth available on ta connection

Acceptance tester April 2008 to March 2009
Confidential, Allen Texas

• Performed User Acceptance Testing, Electrical testing, Quality Control and inspections of Express Poll 5000 Electronic Poll Book, OSX Optical Scanner, Automark voting machine.
• Installed, tested, and upgraded software into the EP5000, EP4000, AVTSXR7, AV-TS R6, AV-OSX, AV-OS, and AutoMark machines.

Tech Support Officer March 2007 - Nov 2007
Confidential, Dallas Texas

• Provided tech support to customers over phone regarding DSL connection
• Verified and corrected IPv4 TCP/IP settings, Windows Firewall, defender, setup primary & sub email account in verizon email, troubleshoot authentication, sync, route issues

Field Test Engineer January 2005 - January 2007
Confidential, Dhaka Bangladesh

• Performed functionality test- Call test, GPRS test, handover performance between cells (Intra and Inter HO) during the drive test
• Using the TEMS verified the cell parameters such as Rx-level, Rx-quality, C/I, C/A, SQI, HSN, MAIO, BER, FER etc
• Conducted initial site survey, select a suitable location for site and send the request for survey to the concerned dept
• Attended Technical Review to identify antennas location, direction, height and type of cable
• Performed Radio Frequency Planning of GSM Network with the help of planning tool Path loss
• Completed drive test and fault identification with TEMS Investigation, troubleshoot problematic site and post processing by MapInfo
• Handled re-planning and fine tuning of the Network by adding/removing BTS/TRU, changing parameters, rearranging BTS to meet the quality standard and ensuring coverage.

IT Support Engineer September 2001- August 2004
Confidential, Sydney NSW Australia

• Provided desk side support to corporate clients on day to day networking issues.
• Performed preventive maintenance, including checking electrical connections, creating unix and windows log on id, email account, troubleshoot printers, and peripherals and hands-on fixes at the desktop level, including installing and upgrading software, hardware

Education

Bachelor of Science in Computer Science
Certificate in Business Computing
Bachelor of Science Electrical & Electronic Engineering