Engineer Technical Support

Yousuf Mohammed

Phone: 224-***-****

Email: **********@*****.***

Career Profile:

• 5 years of experience in Telecom field with hands on experience of RF Optimization, deployment, commissioning and troubleshooting issues for Macro sites and DAS nodes.

• Experience in troubleshooting network issues via layer 3 messages and call trace through the network.

• Knowledge of RF tools like XCAL, XCAP, Windcatcher, TEMS Discovery, TEMS Investigation, MapInfo, Planet and Atoll.

• Experience with Post Launch Optimization, parameter changes and their impact, Multiband tuning and tracking improvements of overall network KPI’s.

• Good knowledge of T1/Fiber/Microwave backhaul configurations for MWR2941, ASR9K and Cisco 6509 routers.

• Hands on experience with STA equipment on CDMA/EVDO Base stations, eNodeB, RRH and cell site system managers like LSMR & BSM GUI.

• Good understanding of engineering concepts and able to interpret data from different types of test equipment’s including Spectrum Analyzers and Anritsu.

• `Experience in planning and deployment, forecasting network/equipment needs, recommending appropriate configurations, resolving complex maintenance problems, providing technical leadership and expertise.

• Proficient in office computer applications like Excel, PowerPoint, Access and other RF related software’s including MapInfo, Planet, TEMS Discovery, X-CAL, QXDM, TIPP-L and Windcatcher.

• Strong technical, organizational and interpersonal skills. Result oriented with focus on customer satisfaction and team player.

EXPERIENCE:

RF Engineer III (Jan 2015-Dec 2015)

Sprint (Multiband Project)

Bellevue, WA

• Optimize, troubleshoot and improve KPI’s of CDMA, EVDO & LTE networks.

• Experience in PCI, RACH planning for 4G sites. Experience in DAS nodes optimization and parameter tuning. (Was involved with Crown castle to troubleshoot and optimize performance issues with Sprint DAS nodes from Greater Seattle area and for Century link stadium).

• Experience in conducting parameter trials to enhance network KPI’s and performance. Self motivated, quick learner and ability to work in stressful environment.

• Knowledge of RF tools like XCAL, XCAP, Windcatcher, TEMS Discovery, TEMS Investigation, MapInfo, Planet, Google Earth and Atoll.

• Investigating customer complaints and fix issues such as coverage holes, pilot pollution, drop calls, handoff failures and interference issues.

• Generate scripts for market/site level parameter changes on cell sites and recommend parameter changes to improve overall network performance and prepare pre/post status reports.

• Knowledge of multiband optimization, carrier turn up, PN, Paging Zone and Registration Zone planning for CDMA. Knowledge of PCI, RACH planning and TA planning for 4G sites.

• Hands on experience on 4G and 3G Neighbor list planning. And good understanding of new LTE features like SON ANR and Auto PCI functions.

• Experience in RF Interference hunting and troubleshooting RSSI issues on cell sites.

• Good understanding of call trace and protocol trace from MME. Ability to understand and interpret signaling messages to fix network performance issues.

• Perform KPI analysis, market level parameter audits, Cluster level Optimization, root cause analysis of RF issues and parameter trials to improve/fine tune overall network performance.

• Ability to perform RF activities in customer projects independently in compliance with processes, methods and possess service excellence awareness.

• Audit new on air commercial sites for key golden baseline parameters and monitor performance.

• Ability to quickly respond to critical service impacting issues with intuitive out of the box ideas and solutions.

Sr. Lead RAN Engineer & 4G SME (Jun 2012-Jan 2015) Samsung Telecom America

Frisco, TX.

• Troubleshoot hardware related alarms on 3G/4G sites and providing necessary support/technical expertise in resolving hardware issues with eNodeB, Base station, RRH, Antenna, Optical fiber, Channel cards and other HW equipment’s.

• Experience in configuring/troubleshooting X2, S1-AP, GTP-U links for 4G sites.

• Troubleshoot connectivity issues with System manager (LSMR/BSM) for 3G/4G sites by verifying environmental files and backhaul configuration/routing on MWR 2941 and ASR 9K routers.

• Knowledge of commissioning CDMA, EVDO and 4G nodes, PCI/RACH planning for macro sites.

• Experience in Deployment, Troubleshooting and Optimizing DAS nodes deployed for special events. Knowledge of special event parameters to help improve KPI’s and overall performance of DAS nodes.

• Providing support for Drive test teams during E911 tests, Site shakedowns and troubleshooting/fixing call processing and other issues.

• Knowledge of point-to-point/point-to-multipoint Microwave backhaul configuration for cell site routers and AAV configuration for Cisco ASR 6509 routes.

• Commission 3G & 4G sites and perform necessary SW/FW upgrades.

• Generate reports for Commissioned cell sites for ATP tests and provide technical support to fix cell site related issues like high VSWR, high RSSI and low transmit power.

• Work closely with multiple teams in planning and forecasting deployment and other network needs.

RF Engineer- II (Feb 2011-May 2012)

Ericsson

Richardson, TX.

• Good understanding of RF Optimization procedures and RF Optimization tools/test equipment.

• Knowledge of TEMS Discovery, MAPINFO, TEMS Investigation, ITK post processing tool, LTE Parameters and features.

• Good understanding of LTE air interface, LTE Basic call flow, Layer 3 signaling, architecture & ability to use network performance tools.

• Provide necessary recommendations and optimization techniques to improve LTE Network KPI’s like Retainability, Accessibility, Call drop rate, Call fail rate etc.

• Work with the customer to resolve issues of low throughput and packet loss. Performed IPERF UDP/TCP tests to verify packet loss using Wireshark and provide necessary recommendations.

• Verify PIM & SWEEP test results for Duplexer, Main line, Antenna and verify antenna system performance.

• Validate RSRP, Dominance and best server using post processing OSS tool ITK, Site shakedown report and troubleshoot UL RSSI, VSWR, Swapped feeder, alarms and RET Connectivity.

• Assign sites for drive test engineers to collect data for newly integrated sites and generate maps for cluster drives using MapInfo.

• Hands on experience of working with DAS nodes. (Was involved in troubleshooting and Optimizing performance issues of Boston Logan Airport DAS nodes on AT&T network)

• Experience in LTE Cluster optimization, LTE Post processing, RNC parameters optimization and parameter tuning for Network optimization.

RF Engineer- I (Jan 2010- Jan2011)

Ericsson

Plano, TX.

• Post processing of drive logs using TEMS Investigation & TIPP-L.

• Analyze LTE sites for Coverage & Data using MAPINFO & TEMS Discovery and generate drive routes in Microsoft Streets& trips.

• Analyze Handover pass/fail and other parameters like session errors; attach failure/success in cluster analysis for meeting KPI’s.

• Generate reports for Site shakedown and Cluster Analysis.

• Neighbour analysis using TIPP-L tool and audit NL’s for a cell sites.

• Analyze and Optimize Throughput Downlink, Uplink data & Intra frequency Handovers.

• Conduct pre-launch and post launch drives for clusters to optimize and improve network KPI’s.

• Analyze RRC Signaling and troubleshoot issues like drop calls, handoff failure, missing neighbors and coverage holes.

• Carry out tests like Single Site Verification (SSV) for single cell testing and IFHO drives to verify inter-frequency handovers between UMTS 1900 and UMTS 850.

• Involved with optimization team to break down optimization issues and meet KPIs.

• Support IRAT testing on UMTS boundaries to check handoff between UMTS and GSM and vice versa, RNC handoff test.

EDUCATION:

• Bachelor of Science in Electrical & Instrumentation Engineering. Osmania University, Hyderabad, India.

Academic Projects:

1. Yousuf Mohammed.”Active Noise Filter design using NLMS algorithm”. Northern Illinois University, Course Project Spring 2010.

2. Yousuf Mohammed, Pooya Eslami, Muneer Shaik, Rohit Akula. “Low Cost Integrated Ultrasound System”. Northern Illinois University. Fall, 2009. 3. Yousuf Mohammed, Syed Bilal ul Haq. “Design of Analog to Digital Converter using PSPICE”. Northern Illinois University, Course Project Fall 2008. 4. Yousuf Mohammed, Mohd Abdul Qader Shaheed, Mateen shaik, Sohail uddin. “FM Transmission Based Wireless ECG”. Mufakhamjah College of Engineering and Technology. May 2007.

Contact this candidate