JAIDEEP CHOWDHURY

• Provided ORAN technology hardware/software validation & development in the lab and production environment.
• Responsible for RAN OEM (Mavenir, Samsung, Fujitsu) Software validation in FOA followed by Nationwide RAN Software Rollout for 24000 5G Cloud-native ORAN sites via CICD automation in record limited timeline.
• Responsible for technical evaluations of RAN Features and collaborating with RAN OEM partners for Software Defect Root Cause Analysis (RCA), Resolutions & Validation with test cases in the lab & field environment. This initiative with RAN OEM and Cloud Platform Team improved increases network reliability and minimizes service disruptions.
• Comparative study of RAN OEM Systems and provide recommendations for feature enhancement to leadership team.
• Worked with Local RF teams across multiple markets and provided training on Mavenir, Samsung, Fujitsu, AWS and VMware platforms. This initiative assisted RF team to be self-sufficient for initial Triage & optimization in their markets.
• Developed Proof of Concept for RAN OEM Migration with VLAN Switch methodology in collaboration with Networking, Cloud and RAN team to have seamless migration with minimum downtime and customer impact.
• Experience with Kubernetes, AWS Cloud, VMware, WindRiver to deploy RAN Network Functions in Virtualized environment. Provided guidance and support for new site build via CICD automation to ensure RAN configurations integrity. Included automation in RAN operations for proactive network monitoring, fault detection & minimizing OPEX.
• Collaborated with National RF for optimization trial parameters to standardize Golden Parameter list for the network.
• Co-ordinated with NOAA partners PRB blanking automation framework readiness to comply n70 band transmission near NOAA Earth Station to avoid uplink interference.
• Lead RAN team to launch 5G SA sites successfully for commercial traffic and monitor to improve KPIs to meet FCC commitments of 70 % pops coverage across the country.
• Responsible for reviewing and approving Change Requests for Production RAN changes.
• Lead Seven Engineers from RAN team to troubleshoot West region sites with issues related to stability, call drops, voice quality issues. Deep dive packet captures call flow analysis with Radcom traces.
• Developed Training, MOPs and provided Tier 3 engineering technical guidance to NOC Operations teams.
• Responsible for RAN Distributed Unit (DU) CaaS Migration from VMware to WindRiver in tight timeline with minimal stability & KPI impact. Ensure compatibility of RAN DU software with Single Node architecture of WindRiver.

• Dish Wireless Project:
• Worked on 5G ORAN NFs (RU, DU, CUCP/UP) and thorough understanding/troubleshooting of VRAN. Experience in working with Kubernetes and associated CLI tool. Familiar with RU functions and to troubleshoot DU to RU interfaces.
• Performed Call Trace with field UE testing to identify issues with UE attach/PDU session failure. Analyzed logs with Wireshark and engaged the required team (Core team / vendor) to mitigate the issue.
• Configuring RUs in Infoblox and verifying CSR to get the site ready for RAN Vendors to onboard Network functions.
• Performed RU software upgrade before on-boarding DU via mCMS to avoid RU Internal PS alarm issue.
• Worked on TCA to instantiate NFs, VSphere to evaluate VM issue, Analytics for site monitoring.

ATT & TMO Project:

• Responsible for ATT RAN deliverables and LTE & 5G network optimization for GA, SC, OK and RMR regions.
• Reviewed KPIs and ameliorate system parameters to improve network performance.
• Identify Worst KPI Offenders; Cells or Sites in cluster and then perform a deep dive RCA to troubleshoot and fix the issue; make relevant Parameter Changes (E-tilt/M-tilt, Power, Idle and Connected Mode Parameter Changes, MIMO Parameters, Power Control Parameters, Traffic Balance related parameter changes)
• Collaborated with Integration team for troubleshooting of network performance degradation issues in T-Mobile.
• Worked with Atoll to run predictive analysis based on propagation models to determine coverage gaps for RF planning in rolling out ATT LTE network.
• Reviewed RFDS and Design Data, CIQ and compared it to ENM/OSS data. Reviewed RF Functional test, alarms, RSSI, VSWR and direct to the concerned teams for further troubleshooting.
• Supported Tower crews to troubleshoot RF Path issues, PIM test analysis and post resolution verification.

• Responsible to lead a 10 members team to perform pre & post launch optimization for UMTS/LTE network and to meet ATT RAN deliverables for Georgia, Carolina, WI-IL markets.
• Gained in-depth knowledge of Network Parameters, aligning parameters and neighbor list optimization to get sites ready for commercial operation. Reviewed Gold Standard Parameter Audit for carriers integrated and align as per market RAN requirements in ENM and NetAct. Launched UMTS/LTE sites and monitored performance KPIs monitored site performance during launch process.
• Performed in-depth analysis of HO failures, Voice/Data Accessibility & Retainability issues, Timing advance analysis, parameter, tilt/power changes for RF coverage optimization in Ericsson, Nokia OEM to meet network-gating KPIs.
• Analyze drive test data by RF parameters RSRP, RSRQ, SINR to identify, coverage holes, pilot pollution, low throughput, perform RCA for dropped call, setup/handover failure, poor coverage, examining call-flow by ACTIX Layer 3 messages.
• Performed Traffic Analysis & Radio Network KPI Statistical Analysis with ARIESO optimization tool.
• Neighbor List Planning and Implementation (IRAT, UMTS, GSM neighbors) and LTE IFHO neighbors for ALU and Ericsson