Mohit Kumar

Key Projects and Contributions

Scrum Master (Sep 2021 – Ongoing)

• Role: Team Lead and Sprint Manager
• Over the past three years, managed sprints and coordinated deliverables across three major projects:
• 5G Geolocation
• Airborne Implementation
• Geolocation Implementation
• Led a unified team working on these projects, ensuring:
• Efficient resource allocation by dynamically switching efforts between projects.
• Successful delivery of sprint goals aligned with stakeholder priorities.
• Streamlined communication between cross-functional teams to resolve dependencies.
• Ensured timely deliverables while balancing customer demands and internal development timelines.

1. 5G Geolocation

Duration: Sep 2024 – Ongoing
Role: Senior Principal Engineer / Team Lead

Responsibilities:

• Designed development strategies for 5G, including release planning and estimation.
• Interpreted customer requirements to develop custom solutions.
• Provided technical support to cross-functional teams, including stack and PHY layers.
• Conducted SNR and timing estimations for SRS reference signals.
• Developed cell search algorithms for the USSM PHY module.

2. Airborne Implementation

Duration: Jan 2022 – Ongoing
Role: Senior Principal Engineer / Team Lead

Responsibilities:

• Conducted feasibility testing of components for airborne requirements.
• Designed software and hardware solutions based on feasibility analysis and customer needs.
• Developed algorithms across multiple radio access technologies (RATs):
• Doppler-based algorithms for GSM and UMTS.
• Timing-based algorithms for LTE and UMTS.
• Delivered releases and ensured smooth communication between teams.
• Managed bug tracking and prioritized development tasks.

3. Geolocation Implementation

Duration: Jul 2019 – Ongoing
Role: Principal Engineer → Senior Principal Engineer / Team Lead

Responsibilities by Components:

• USSM (Physical Layer on DSP):
• Enhanced LTE cell search procedures and SNR calculations.
• Improved GSM synchronization and signal measurement logic.
• Optimized LTE-TDD scheduling and performance.
• Implemented SNR and RSCP calculations for CDMA/UMTS and delay tracking.
• Enhanced validation frameworks and test cases.
• Integrated RF interface for advanced geolocation features.
• GLPHY (Geolocation on ARM):
• Implemented runtime delay calibration to improve accuracy.
• Supported CDMA with phase difference calculation.
• Enhanced algorithms to detect frequency and timing offsets across RATs.
• Added support for new catcher types and customer-driven requirements.
• Developed geolocation capabilities leveraging base station signals.
• GFW/GNOP/Python GUI (Windows Component):
• Measured and improved confidence levels for 2D geolocation.
• Enhanced accuracy for 2D and 3D geolocation data.
• Automated field log post-processing and analysis workflows.

4. GSM Physical Layer

Duration: Jul 2015 – Jun 2019

Responsibilities:

• Developed and optimized L1-PHY libraries for 2G in line with 3GPP specifications.
• Improved test environments and implemented unit test frameworks.
• Created libraries for multi-carrier development and enhanced BEP measurement.
• Developed UE boot-up band scanners and hard-coded L2 stub simulators.
• Built API commands for physical and logical channel activation.
• Implemented frequency hopping for UEs.

Project: GSM/LTE Baseband Development

Responsibilities:

• Developed baseband libraries for GSM (GPRS, EGPRS) on TI and BF547 platforms.
• Built and optimized GSM receiver components:
• Channel estimation, noise cancellation, and equalizers (MLSE, DFSE).
• Developed channel models per 3GPP specifications using MATLAB and fixed-point coding.
• Implemented GSM channel coding, modulation, and demodulation.
• Contributed to VAMOS development and SIC receiver implementation.
• Enhanced RF performance for GSM baseband.
• Developed LTE channel encoding aligned with 3GPP Release 9 specifications.