Customer Experience Disaster Recovery

Marvin Ishraidi *********@*******.***

Houston, TX 77065 Mobile:713-***-****

Summary:

Telecom Engineer with 23+ years of experience optimizing and designing RF networks (LTE, VoLTE, 5G, 4G, EVDO, and CDMA). Proven expertise in NOKIA, ERICSSON, and Samsung networks, in-building DAS systems, and disaster recovery. Recognized for leading high-impact projects, including Houston Rodeo, NBA All-Star Games, and Houston Airport. Adept at improving network KPIs, resolving interference, and enhancing customer experience.

Work experience:

RF consulting Engineer (Self Employed) Jan 2023-Present

Provide strategic guidance on 5G and LTE network performance, ensuring optimal KPI targets.

Conduct Uplink Interference investigations, identifying and mitigating external/internal noise sources.

Review and approve cell closeout packages for new and upgraded sites.

T-Mobile (Sprint Nextel/Ericsson), Houston, Texas Jun 2000 – Dec 2022

RF Engineer

Performed daily network monitoring, investigated and resolved degraded performance KPI’s on Voice and data. (Accessibility, Retainability, and data throughput). Further Reviewed hardware alarms log followed by performance network enhancement resolutions.

Conducted daily troubleshooting customer ticket management, addressing complaints and finding resolutions. Utilizing TrueCall tools, CDR call trace, analysis and drive testing

Optimized the network through software and hardware changes such as Power setting, remote antenna tilting, antenna re-orientation and antenna changes keeping in mind capacity concern’s and most importantly improving the overall customer experience.

Investigated areas of weak network coverage, Signal interference, Congested cells, poor Accessibility, and Mobility issues, also propose sector splits and implemented other solutions to strengthen coverage.

In Building Market Lead for the Sprint market, responsible for all existing and the newly launched DAS Systems, reviewed and approved vendor iBwave design propagation. Worked with different vendors on assuring proper performance during and after ATP’s. Assisted vendors with troubleshooting DAS systems Power setting and attenuation on ADRF, Corning, and Solid systems also very familiar with Cisco’s enterprise wireless infrastructure. Worked on major projects such as Houston Rodeo at Reliant Stadium, NBA All Star Games, The city of Houston 10 million Dollar project, MD Anderson Project, British Petroleum HQ, Reliant Park, USPS and Houston Airport.

Conducted wireless site surveys and tested WiFi radios functionality for public venues (Minute Maid Wi-Fi).

Managed and activated new sites 911 call setup on multiple Texas Counties, verified VESTA PSAP-911 routing and translation update on new frequency retuned sites.

Conducted various types of wireless troubleshooting, Competent with Uplink Interference hunting on revolving external and internal noise sources. Verify the interference source and reach out to the offenders, Worked on addressing network interference on weather Radar interference. (Using Rhode & Schwartz, Viavi and JDSU tools).

(+ exposed to various tools that can help with wireless troubleshooting)

Conducted network recovery and supported field operation during hurricane Laura recovery.

Market team lead on the new T-Mobile Home Internet Devices (HINT), in charge of Device performance and addressing customer related issues. (Verify capacity limitation, BH or transport link also checks QCI performance).

Spearheaded disaster recovery efforts during Hurricane Harvey, restoring 95% of downed sites within 72 hours.

Managed Sprint 5G launch, overseeing contractor teams and ensuring timely project delivery.

Conducted parameters consistency check and Identified Exemptions, corrected parameters on each technology, Missing neighbors (ADCE, ADJW, ADJS, ADJG, ADJI, LNADJ, LNADJW, LNADJG), 4G Power settings, LNHOW/REDRT/UFFIM among others, PRACH Plot/report to support EDT Tilts recommendation for containment, BCCH/TCH retune if co-channels are found. Also correcting market wide underpowered & overpowered cells.

Performed Idle Load Balancing for congestion relief of L1900/L2100 balance traffic between the two layers also combined Cluster optimization of L1900/L2100/L700/L600, Stats Analysis for Market specific KPI target.

Implemented Reverse MOCN between the Sprint and T-Mobile sites for the Houston market.

Worked on 5G network optimization project to improve 5G market KPIs.

Perform RF Drive test to troubleshoot coverage, drop calls with XCAL tool and post processing

oData with XCAP and Wind catcher, also perform Ping test, latency for 4G/5G network

oConnectivity in XCAL SOLO device

Market Lead in implementing the Sprint sites decommissioning project (Created work orders, on air/off air notification and verify neighbor cell performance).

Performed MPE regulatory testing, ensuring RF compliance with FCC (NARDA).

Implemented frequency re-tune projects. Headed the Sprint D1 retune on band 41 (Samsung LMS) and Sprint Band 41 on Nokia site’s. Lately worked on retuning the Sprint 1900 LTE band in preparation for 1900 T-Mobile 5G network launch.

Conducted Uplink Interference hunting on external and internal noise sources. Verify the interference source and reach out to the offenders, Worked on addressing network interference on weather Radar interference. (Using Rhode & Schwartz, Viavi and JDSU tools).

Conducted a new and modernized sites COP check, Verify parameters, KPIs, RTWP before declaring sites On Air.

Conducted a new cell site walk, verify regulatory signage (NEPA, NOCC signs), verified antenna orientation PCIs and channel assignment followed by a baseline drive test.

POC/End-To-End Sprint’s Small Cell Deployment from Initial Design to Site Integration.

Activated and launched Cow’s (Cell on Wheels) for special events across the market. (NBA ALL Star Basketball, Houston Rodeo and Texas A&M College Football event)

Software And Tools

Power BI, Tableau, RF Insights, Truecall TEMS, (SON) Self Optimizing network, SecureCRT, NOKIA OSS, Ericsson OSS, Samsung LSM,CIQ, Actix Analyzer, Accuver XCAL, Accuver XCAP JDSU Agilent Technologies, Viavi, Windcatcher, MapInfo, Planet EV,Atoll, iBwave, Invex, and Interpreter (Copra & Nitro) series, Nortel optimizer and NARDA RF exposure Probe .

Education

B.S. of Electrical Engineering From Prairie View A & M University, Prairie View, Texas

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